SPSS INC
10-Q, 2000-05-15
PREPACKAGED SOFTWARE
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<PAGE>   1
================================================================================

                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM 10-Q

                QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934
                  FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2000


                        COMMISSION FILE NUMBER: 33-64732


                                    SPSS INC.

             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)



             DELAWARE                                       36-2815480
  (STATE OR OTHER JURISDICTION                 (IRS EMPLOYER IDENTIFICATION NO.)
OF INCORPORATION OR ORGANIZATION)

                  233 S. WACKER DRIVE, CHICAGO, ILLINOIS 60606
              (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES AND ZIP CODE)


        REGISTRANT'S TELEPHONE NUMBER INCLUDING AREA CODE: (312) 651-3000


         INDICATE BY CHECK MARK WHETHER THE REGISTRANT (1) HAS FILED ALL REPORTS
TO BE FILED BY SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DURING
THE PRECEDING 12 MONTHS (OR FOR SUCH SHORTER PERIOD THAT THE REGISTRANT WAS
REQUIRED TO FILE SUCH REPORTS), AND (2) HAS BEEN SUBJECT TO FILING REQUIREMENTS
FOR THE PAST 90 DAYS. YES X    NO
                          ---    ---

         AS OF MAY 10, 2000, THERE WERE 9,736,021 SHARES OF COMMON STOCK
OUTSTANDING, PAR VALUE $.01, OF THE REGISTRANT.

================================================================================

<PAGE>   2

                                    SPSS INC.
                                    FORM 10-Q
                          QUARTER ENDED MARCH 31, 2000

                                      INDEX

<TABLE>
<CAPTION>
PART I - FINANCIAL INFORMATION                                                  PAGE
                                                                                ----
<S>                                                                             <C>
         ITEM 1.  FINANCIAL STATEMENTS

                  INDEPENDENT AUDITORS' REVIEW REPORT                             3

                  CONSOLIDATED BALANCE SHEETS
                  AS OF DECEMBER 31, 1999 AND
                  MARCH 31, 2000 (UNAUDITED)                                      4

                  CONSOLIDATED STATEMENTS OF INCOME
                  FOR THE THREE MONTHS ENDED MARCH 31,
                  1999 (UNAUDITED) AND 2000 (UNAUDITED)                           5

                  CONSOLIDATED STATEMENTS OF COMPREHENSIVE
                  INCOME FOR THE THREE MONTHS ENDED MARCH 31,
                  1999 (UNAUDITED) AND 2000 (UNAUDITED)                           6

                  CONSOLIDATED STATEMENTS OF CASH FLOWS FOR THE
                  THREE MONTHS ENDED MARCH 31, 1999
                  (UNAUDITED) AND 2000 (UNAUDITED)                                7

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS                      8

         ITEM 2.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  FINANCIAL CONDITION AND RESULTS OF OPERATION                    9

         ITEM 3.  QUANTITATIVE AND QUALITATIVE DISCLOSURES
                  ABOUT MARKET RISK                                              12

PART II - OTHER INFORMATION

         ITEM 1.  LEGAL PROCEEDINGS                                              13


         ITEM 6.  EXHIBITS AND REPORTS ON FORM 8-K                               13

</TABLE>


                                        2
<PAGE>   3


ITEM 1.           FINANCIAL STATEMENTS


                       INDEPENDENT AUDITORS' REVIEW REPORT


The Board of Directors
SPSS Inc.:


We have reviewed the consolidated balance sheet of SPSS Inc. and subsidiaries as
of March 31, 2000 and the related consolidated statements of income,
comprehensive income and cash flows for the three-month periods ended March 31,
1999 and 2000. These consolidated financial statements are the responsibility of
SPSS Inc. management.

We conducted our reviews in accordance with standards established by the
American Institute of Certified Public Accountants. A review of interim
financial information consists principally of applying analytical procedures to
financial data and making inquiries of persons responsible for financial and
accounting matters. It is substantially less in scope than an audit conducted in
accordance with generally accepted auditing standards, the objective of which is
the expression of an opinion regarding the financial statements taken as a
whole. Accordingly, we do not express such an opinion.

Based on our reviews, we are not aware of any material modifications that should
be made to the consolidated financial statements referred to above for them to
be in conformity with generally accepted accounting principles.

We have previously audited, in accordance with generally accepted auditing
standards, the consolidated balance sheet of SPSS Inc. and subsidiaries as of
December 31, 1999, and the related consolidated statements of income,
comprehensive income, stockholders' equity, and cash flows for the year then
ended (not presented herein); and in our report dated March 17, 2000, we
expressed an unqualified opinion on those consolidated financial statements. In
our opinion, the information set forth in the accompanying consolidated balance
sheet as of December 31, 1999, is fairly stated, in all material respects, in
relation to the consolidated balance sheet from which it has been derived.




/s/ KPMG LLP


Chicago, Illinois
May 10, 2000



                                       3
<PAGE>   4
                           SPSS INC. AND SUBSIDIARIES
                           CONSOLIDATED BALANCE SHEETS
                        (IN THOUSANDS, EXCEPT SHARE DATA)


<TABLE>
<CAPTION>
                                                                                 DECEMBER 31,  MARCH 30,
                                                                                   1999          2000
                                                                                 -----------   ---------
                                      ASSETS                                                  (unaudited)
<S>                                                                              <C>          <C>
CURRENT ASSETS:
     Cash and cash equivalents                                                   $  16,770    $  13,651
     Accounts receivable, net of allowances                                         42,901       43,091
     Inventories                                                                     2,895        3,113
     Deferred income taxes                                                           3,042        3,042
     Prepaid expenses and other current assets                                       2,833        3,746
                                                                                 ---------    ---------
          Total current assets                                                      68,441       66,643
                                                                                 ---------    ---------

EQUIPMENT AND LEASEHOLD IMPROVEMENTS, at cost:
     Land and building                                                               1,671        1,648
     Furniture, fixtures, and office equipment                                       7,617        7,723
     Computer equipment and software                                                25,982       28,599
     Leasehold improvements                                                          6,480        6,592
                                                                                 ---------    ---------
                                                                                    41,750       44,562
     Less accumulated depreciation and amortization                                 25,639       26,705
                                                                                 ---------    ---------
Net equipment and leasehold improvements                                            16,111       17,857
                                                                                 ---------    ---------
Capitalized software development costs, net of accumulated amortization             13,078       13,535
Goodwill, net of accumulated amortization                                            5,339        9,062
Other assets                                                                         3,746        3,258
                                                                                 ---------    ---------
                                                                                 $ 106,715    $ 110,355
                                                                                 =========    =========

                       LIABILITIES AND STOCKHOLDERS' EQUITY
CURRENT LIABILITIES:
     Notes payable                                                               $   9,000    $   8,000
     Accounts payable                                                                5,670        5,067
     Accrued royalties                                                                 488          438
     Accrued rent                                                                    1,050        1,152
     Other accrued liabilities                                                       8,270        8,430
     Income taxes and value added taxes payable                                      3,664        4,333
     Customer advances                                                                 529        1,013
     Deferred revenues                                                              11,098       10,572
                                                                                 ---------    ---------

          Total current liabilities                                                 39,769       39,005
                                                                                 ---------    ---------

Deferred income taxes                                                                3,809        3,809
Other non-current liabilities                                                        1,595        1,525
STOCKHOLDERS' EQUITY:
     Common Stock, $.01 par value; 50,000,000 shares authorized; 9,652,665 and
       9,731,764 shares issued and outstanding in 1999 and
       2000, respectively                                                               96           97
     Additional paid-in capital                                                     48,569       49,586
     Accumulated other comprehensive income (loss)                                    (119)          67
     Retained earnings                                                              12,996       16,266
                                                                                 ---------    ---------

          Total stockholders' equity                                                61,542       66,016
                                                                                 ---------    ---------
                                                                                 $ 106,715    $ 110,355
                                                                                 =========    =========
</TABLE>


          See accompanying notes to consolidated financial statements.



                                       4
<PAGE>   5
                           SPSS INC. AND SUBSIDIARIES
                        CONSOLIDATED STATEMENTS OF INCOME
                      (IN THOUSANDS, EXCEPT FOR SHARE DATA)
                                   (UNAUDITED)


<TABLE>
<CAPTION>
                                      THREE MONTHS ENDED
                                          MARCH 31,
                                   -------------------------
                                       1999          2000
                                   -----------   -----------
<S>                                <C>           <C>
Net revenues:
    Analytical solutions           $     3,680   $     7,074
    Market research                      7,030         7,435
    Statistics                          22,287        23,294
                                   -----------   -----------

Total net revenues                      32,997        37,803

Operating expenses:
    Cost of revenue                      2,683         3,174
    Sales and marketing                 16,904        19,341
    Product development                  5,709         6,162
    General and administrative           2,415         2,481
                                   -----------   -----------

Operating expenses                      27,711        31,158
                                   -----------   -----------

Operating income                         5,286         6,645
                                   -----------   -----------

Other expense:
    Net interest expense                    65           173
    Other expense                          115           377
                                   -----------   -----------

Other expense                              180           550
                                   -----------   -----------

Income before income taxes               5,106         6,095
Income tax expense                       1,766         2,316
                                   -----------   -----------

Net income                         $     3,340   $     3,779
                                   ===========   ===========

Basic net earnings per share       $      0.35   $      0.39
                                   ===========   ===========

Shares used in computing basic
   net earnings per share            9,580,946     9,679,037
                                   ===========   ===========

Diluted net earnings per share     $      0.33   $      0.36
                                   ===========   ===========

Shares used in computing diluted
   net earnings per share           10,090,933    10,582,279
                                   ===========   ===========
</TABLE>


          See accompanying notes to consolidated financial statements.



                                       5
<PAGE>   6



                           SPSS INC. AND SUBSIDIARIES
                 CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
                                 (IN THOUSANDS)
                                   (UNAUDITED)


                                              THREE MONTHS ENDED
                                                  MARCH 31,
                                              -------------------
                                                1999       2000
                                               -------    -------

Net income                                     $ 3,340    $ 3,779

Other comprehensive income (loss):
     Foreign currency translation adjustment      (282)       186
                                               -------    -------

Comprehensive income                           $ 3,058    $ 3,965
                                               =======    =======



           See accompanying notes to consolidated financial statements


                                       6
<PAGE>   7
                           SPSS INC. AND SUBSIDIARIES
                      CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (IN THOUSANDS)
                                   (UNAUDITED)



                                                       THREE MONTHS ENDED
                                                            MARCH 31,
                                                      ---------------------
                                                        1999        2000
                                                      --------    ---------
Cash flows from operating activities:
    Net income                                        $  3,340    $  3,779
    Adjustments to reconcile net income to net cash
      (used in) provided by operating activities:
          Depreciation and amortization                  2,105       2,546
          Deferred income taxes                             22        --
          Changes in assets and liabilities:
             Accounts receivable                         1,434        (190)
             Inventories                                  (223)       (218)
             Accounts payable                             (629)       (603)
             Accrued royalties                             (80)        (50)
             Accrued expenses                             (657)        262
             Accrued income taxes                         (357)        669
             Deferred revenues                          (1,268)       (526)
             Other                                        (761)       (608)
                                                      --------    --------

Net cash provided by operating activities                2,926       5,061
                                                      --------    --------

Cash flows from investing activities:
     Capital expenditures, net                          (1,943)     (2,916)
     Capitalized software development costs             (1,419)     (1,400)
     1999 acquisition earn-out payments                   --        (3,882)
                                                      --------    --------

Net cash used in investing activities                   (3,362)     (8,198)
                                                      --------    --------

Cash flows from financing activities:
     Net repayments on notes payable                    (1,043)     (1,000)
     Net proceeds from issuance of common stock            107       1,018
                                                      --------    --------

Net cash provided by (used in) financing activities       (936)         18
                                                      --------    --------

Net change in cash and cash equivalents                 (1,372)     (3,119)
Cash and cash equivalents at beginning of period        16,297      16,770
                                                      --------    --------
Cash and cash equivalents at end of period            $ 14,925    $ 13,651
                                                      ========    ========

Supplemental disclosures of cash flow information:
     Interest paid                                    $    186    $    266
     Income taxes paid                                   1,561    $  1,651
                                                      ========    ========


          See accompanying notes to consolidated financial statements.



                                       7
<PAGE>   8

                           SPSS INC. AND SUBSIDIARIES
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


NOTE 1 - BASIS OF PRESENTATION

The accompanying unaudited interim consolidated financial statements reflect all
adjustments which, in the opinion of management, are necessary for a fair
presentation of the results of the interim periods presented. All such
adjustments are of a normal recurring nature.

These consolidated financial statements should be read in conjunction with SPSS'
audited consolidated financial statements and notes thereto for the year ended
December 31, 1999, included in SPSS' Annual Report on Form 10-K filed with the
Securities and Exchange Commission.


NOTE 2 - RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS

In March 2000, the Financial Accounting Standards Board issued FASB
Interpretation No. 44, "Accounting for Certain Transactions involving Stock
Compensation, an interpretation of APB Opinion No. 25." SPSS is currently
reviewing the impact of this interpretation on the Company's financial
statements.



                                       8
<PAGE>   9


ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
OF OPERATIONS.

The following table sets forth the percentages that selected items in the
Consolidated Statements of Income bear to net revenues:


                                  PERCENTAGE OF NET REVENUES
                                  --------------------------
                                     THREE MONTHS ENDED
                                          MARCH 31,
                                  --------------------------
                                    1999              2000
                                  --------          --------

Statement of Income Data:
Net revenues:
    Analytical solutions              11%                19%
    Market research                   21%                20%
    Statistics                        68%                61%
                                    ----               ----

Total net revenues                   100%               100%

Operating expenses:
    Cost of revenues                   8%                 8%
    Sales and marketing               51%                51%
    Product development               17%                17%
    General and administrative         8%                 7%
                                    ----               ----

Operating expenses                    84%                83%
                                    ----               ----

Operating income                      16%                17%
                                    ----               ----

Other income (expense):
    Net interest income (expense)     --                 --
    Other expense                     (1%)               (1%)
                                    ----               ----

Other income (expense)                (1%)               (1%)
                                    ----               ----

Income before income taxes            15%                16%
Income tax expense                     5%                 6%
                                    ----               ----

Net income                            10%                10%
                                    ====               ====


COMPARISON OF THREE MONTHS ENDED MARCH 31, 1999 TO THREE MONTHS ENDED MARCH 31,
2000.

Net Revenues. Net revenues were $32,997,000 in the three months ended March 31,
1999 and $37,803,000 in the three months ended March 31, 2000, an increase of
15%. These increases were primarily due to growth in analytical solutions
revenues of 92% over the corresponding period in 1999. Offsetting this revenue
growth were increases in market research revenue of 6% and statistics revenue of
5%. The market research revenue lower growth rate was due to an extremely strong
fourth quarter in 1999, which drained the market research pipeline. Statistics
revenue growth was primarily due to shifts in sales and marketing resources
toward developing the higher-growth markets for analytical solutions, as well as
reflecting the lower overall growth rate in the market for general-purpose
statistical products. Revenues were adversely effected by changes in foreign
currency exchange rates for the periods described.



                                       9
<PAGE>   10

Cost of Revenues. Cost of revenues consists of costs of goods sold, amortization
of capitalized software development costs, and royalties paid to third parties.
Cost of revenues was $2,683,000 in the three months ended March 31, 1999 and
$3,174,000 in the three months ended March 31, 2000, an increase of 18%. Such
costs increased due to higher cost of goods sold resulting from increased sales,
increased amortization of capitalized software and increased royalty expense. As
a percentage of net revenues, cost of revenues remained constant at 8%.

Sales and Marketing. Sales and marketing expenses were $16,904,000 in the three
months ended March 31, 1999 and $19,341,000 in the three months ended March 31,
2000, an increase of 14%. This increase reflects the expansion of the Business
Intelligence product sales management, as well as other staff additions,
particularly new sales and professional services personnel. This increase was
partially offset by changes in foreign currency exchange rates. As a percentage
of net revenues, such expenses remained constant at 51%.

Product Development. Product development expenses were $5,709,000 (net of
capitalized software development costs of $313,000) in the three months ended
March 31, 1999 and $6,162,000 (net of capitalized software development costs of
$871,000) in the three months ended March 31, 2000, an increase of 8%. SPSS'
expense for amortization of capitalized software and product translations,
included in cost of revenues, was $650,000 in the three months ended March 31,
1999 and $944,000 in the three months ended March 31, 2000. The increase in
product development expenses was primarily due to staff additions and increases
in staff compensation. As a percentage of net revenues, product development
expenses remained constant at 17%.

General and Administrative. General and administrative expenses were $2,415,000
in the three months ended March 31, 1999 and $2,481,000 in the three months
ended March 31, 2000, an increase of 3%. The increase was due to the addition of
amortization expense related to Integral Solutions Limited intangibles and
increases in information systems personnel offset by reduced costs resulting
from consolidating United States based accounting functions. As a percentage of
net revenues, general and administrative expenses decreased from 8% to 7%.

Net Interest Expense. Net interest expense was $65,000 in the three months ended
March 31, 1999 and $173,000 in the three months ended March 31, 2000 primarily
consisting of debt service on borrowings against the line-of-credit.

Other Expense. Other expense was $115,000 in the three months ended March 31,
1999 and $377,000 in the three months ended March 31, 2000. Such transactions
consist mainly of foreign currency transactions.

Provision for Income Taxes. The provision for income taxes was $1,766,000 in the
three months ended March 31, 1999 and $2,316,000 in the three months ended March
31, 2000. During 1999 the provision for income taxes represented an effective
tax rate of approximately 34.3%. In 2000, the approximate tax rate has been
increased to approximately 38%.


                                       10
<PAGE>   11

LIQUIDITY AND CAPITAL RESOURCES

The Company's other non-current liabilities as of March 31, 2000 is a mortgage
on property in the United Kingdom, and the balance of the purchase price due to
DataStat, S.A. for the acquisition of the VerbaStat product. As of March 31,
2000, SPSS held approximately $13,651,000 of cash.

Funds in the first three months of 2000 were provided by operations. Capital
expenditures included, among other things, new computer systems for use in
internal product development and sales and expenditures for Oracle, the
corporate-wide reporting system.

In June 1999, SPSS revised its loan agreement with American National Bank and
Trust Company of Chicago. Under the new loan agreement, SPSS has an available
$10,000,000 unsecured line of credit with American National, under which
borrowings bear interest at either the prime interest rate or the Eurodollar
Rate, depending on the circumstances. As of March 31, 2000, SPSS had $8,000,000
outstanding under this line of credit. The Company's agreement with American
National requires SPSS to comply with certain specified financial ratios and
tests, and, among other things, restricts the Company's ability to:

         -     incur additional indebtedness,

         -     create liens on assets,

         -     make investments,

         -     engage in mergers, acquisitions or consolidations where SPSS is
               not the surviving entity,

         -     sell assets,

         -     engage in certain transactions with affiliates and

         -     amend its organizational documents or make changes in capital
               structure and

         -     be Year 2000 compliant in software and other information
               processing capabilities.

Also in June 1999, SPSS entered into an amendment to the loan agreement with
American National. This amendment makes an additional $10,000,000 available to
SPSS for the acquisition of assets and further requires that SPSS meet all
original requirements of the loan agreement and give American National the
opportunity to use any proceeds from a public offering of equity or debt
securities to retire outstanding amounts on the line of credit.

SPSS anticipates that amounts available from cash and cash equivalents on hand,
under its line of credit, and cash flows generated from operations, will be
sufficient to fund the Company's operations and capital requirements for the
foreseeable future. However, no assurance can be given that changing business
circumstances will not require additional capital for reasons that are not
currently anticipated or that the necessary additional capital will then be
available to SPSS on favorable terms or at all.



                                       11
<PAGE>   12


In January, 2000, SPSS, as sublessee entered into a six-year sublease with Harza
Engineering Company, Inc., as sublessor, for a total of approximately 41,577
square feet of additional office space in the Sears Tower in Chicago, Illinois.
SPSS will begin its sublease of approximately 16,479 square feet of this space
prior to July 1, 2000, and the annual gross rental payment on this space will be
approximately $199,000. Prior to July 1, 2001, SPSS will begin its sublease of
approximately 25,098 additional square feet and the annual gross rental payment
on the total 41,577 square feet will be approximately $665,000 for the remainder
of the sublease. SPSS shall use the subleased space for administration,
marketing, training, and product support and development.


INTERNATIONAL OPERATIONS

Revenues from international operations were 53% of total net revenues in the
three months ended March 31, 2000 compared to 55% in the three months ended
March 31, 1999. The portion of revenues attributable to international operations
were negatively affected by changes in foreign currency exchange rates. Net
corporate revenues increased 15% in the three month period ended March 31, 2000,
when compared to the three month period ended March 31, 1999. Net of the effects
of changes in foreign currency rates, the increase would have been approximately
16% for the three months ended March 31, 2000 when compared to the three months
ended March 31, 1999.


FORWARD-LOOKING STATEMENTS

This document contains forward-looking statements that involve risks and
uncertainties that could cause the results of SPSS Inc. and its subsidiaries to
differ materially from those expressed or implied by such forward-looking
statements. These risks include the timely development, production, and
acceptance of new products and services, market conditions, competition, the
flow of products into third-party distribution channels, and other risks
detailed from time to time in the Company's Securities and Exchange Commission
filings. The words "anticipate," "believe," "estimate," "expect," "plan,"
"intend," "will," and similar expressions, as they relate to SPSS or its
management, may identify forward-looking statements. Such statements reflect the
current views of SPSS with respect to future events and are subject to certain
risks, uncertainties, and assumptions. Should one or more of these risks or
uncertainties materialize, or should underlying assumptions prove incorrect,
actual results may vary materially from those described herein as anticipated,
believed, estimated, or expected. SPSS does not intend to update these
forward-looking statements.

ITEM 3.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK.

         SPSS' market risk disclosures pursuant to item 3 are not material and
are therefore not required.


                                       12
<PAGE>   13
                           PART II - OTHER INFORMATION

ITEM 1.  LEGAL PROCEEDINGS

         Currently there are no material pending legal proceedings to which SPSS
         or any of its subsidiaries is a party or to which any of their property
         is subject.


ITEM 6.  EXHIBITS AND REPORTS ON FORM 8-K.

(a)      Exhibits (Note:  Management contracts and compensatory plans or
         Arrangements are underlined in the following list.)


                                                                 Incorporation
Exhibit                                                           by Reference
Number   Description of Document                                 (if applicable)
- ------   -----------------------                                 ---------------

2.1      Agreement and Plan of Merger among SPSS Inc.,                   @2.1
         SPSS ACSUB, Inc., Clear Software, Inc. and the
         shareholders named therein, dated September 23, 1996.

2.2      Agreement and Plan of Merger among SPSS Inc.,              @@Annex A
         SPSS Acquisition Inc. and Jandel Corporation,
         dated October 30, 1996.

2.3      Asset Purchase Agreement by and between SPSS Inc.              ##2.3
         and DeltaPoint, Inc., dated as of May 1, 1997.

2.4      Stock Purchase Agreement among the Registrant,                @@@2.1
         Edward Ross, Richard Kottler, Norman Grunbaum,
         Louis Davidson and certain U.K.-Connected Shareholders
         or warrant holders  of Quantime Limited named therein,
         dated as of September 30, 1997, together with a list
         briefly identifying the contents of omitted schedules.

2.5      Stock Purchase Agreement among the Registrant,                @@@2.2
         Edward Ross, Richard Kottler, Norman Grunbaum,
         Louis Davidson and certain Non-U.K. Shareholders or
         warrant holders of Quantime Limited named therein, dated
         as of September 30, 1997, together with a list briefly
         identifying the contents of omitted schedules.

2.6      Stock Purchase Agreement by and among SPSS Inc. and          @@@@2.1
         certain Shareholders of Quantime Limited listed on the
         signature pages thereto, dated November 21, 1997.




                                       13
<PAGE>   14

2.7      Stock Purchase Agreement by and among Jens Nielsen,         @@@@2.2
         Henrik Rosendahl, Ole Stangegaard, Lars Thinggaard,
         Edward O'Hara, Bjorn Haugland, 2M Invest and the
         Shareholders listed on Exhibit A thereto, dated
         November 21, 1997.

2.8      Stock Purchase Agreement by and among SPSS Inc. and        #### 2.1
         the Shareholders of Integral Solutions Limited listed
         on the signature pages hereof, dated as of
         December 31, 1998.

2.9      Share Purchase Agreement by and among SPSS Inc.,              $ 2.9
         Surveycraft Pty Ltd. and Jens Meinecke and
         Microtab Systems Pty Ltd., dated as of
         November 1, 1998.

2.10     Stock Acquisition Agreement by and among SPSS Inc.            $ 2.1
         Vento Software, Inc. and David Blyer, John Gomez and
         John Pappajohn, dated as of November 29, 1999.

2.11     Asset Purchase Agreement by and between SPSS Inc.
         and DataStat, S.A., dated as of December 23, 1999.

3.1      Certificate of Incorporation of SPSS                          * 3.2

3.2      By-Laws of SPSS                                               * 3.4

10.1     Employment Agreement with Jack Noonan                        + 10.1

10.2     Agreement with Valletta                                     ** 10.2

10.3     Agreement between SPSS and Prentice Hall                    ** 10.5

10.4     Software Distribution Agreement between SPSS and IBM        ** 10.6

10.5     HOOPS Agreement                                             ** 10.7

10.6     Stockholders Agreement                                       * 10.8

10.7     Agreements with CSDC                                         * 10.9

10.8     Amended 1991 Stock Option Plan                               * 10.10

10.9     SYSTAT Asset Purchase Agreement                             ++ 10.9

10.10    1994 Bonus Compensation                                    +++ 10.11



                                       14
<PAGE>   15
<TABLE>
<S>      <C>                                                                   <C>
10.11    Lease for Chicago, Illinois Office                                  +++ 10.12

10.12    Amendment to Lease for Chicago, Illinois Office                     +++ 10.13

10.13    1995 Equity Incentive Plan                                            x 10.14

10.14    1995 Bonus Compensation                                              xx 10.15

10.15    Lease for Chicago, Illinois Office                                   xx 10.16

10.16    Amended and Restated 1995 Equity Incentive Plan                     xxx 10.17

10.17    1996 Bonus Compensation                                            xxxx 10.18

10.18    Software Distribution Agreement between the                        xxxx 10.19
         Company and Banta Global Turnkey

10.19    Lease for Chicago, Illinois in Sears Tower                            # 10.20

10.20    1997 Bonus Compensation                                             ### 10.21

10.21    Norman H. Nie Consulting L.L.C. Agreement                           ### 10.22

10.22    Second Amended and Restated 1995 Equity Incentive Plan                     &A

10.23    1998 Bonus Compensation                                                     $

10.24    Third Amended and Restated 1995 Equity Incentive Plan                $$$ 10.1

10.25    Loan Agreement dated June 1, 1999 between                           $$$$ 10.1
         SPSS and American National Bank and Trust
         Company of Chicago

10.26    First Amendment to Loan Agreement dated                             $$$$ 10.2
         June 1, 1999, between SPSS and American
         National Bank and Trust Company of Chicago

10.27    1999 Bonus Compensation                                                     %

10.28    Amendment to Sears Tower Lease, Chicago, Illinois

15.1     Acknowledgement of Independent Certified Public Accountants Regarding
         Independent Auditors' Review Report
</TABLE>



                                       15
<PAGE>   16

27.1     Financial Data Schedule

27.1(a)  Financial Data Schedule (Restated)

- -------------------------------

@        Previously filed with SPSS Inc.'s Report on Form 8-K, dated September
         26, 1996, filed on October 11, 1996, as amended on Form 8-K/A-1, filed
         November 1, 1996. (File No. 000-22194)

@@       Previously filed with Amendment No. 1 to Form S-4 Registration
         Statement of SPSS Inc. filed on November 7, 1996. (File No. 333-15427)

@@@      Previously filed with SPSS Inc.'s Report on Form 8-K, dated September
         30, 1997, filed on October 15, 1997. (File No. 000-22194)

@@@@     Previously filed with the Form S-3 Registration Statement of SPSS Inc.
         filed on November 26, 1997. (File No. 333-41207)

*        Previously filed with Amendment No. 2 to Form S-1 Registration
         Statement of SPSS Inc. filed on August 4, 1993. (File No. 33-64732)

**       Previously filed with Amendment No. 1 to Form S-1 Registration
         Statement of SPSS Inc. filed on July 23, 1993. (File No. 33-64732)

***      Previously filed with Form 10-Q Quarterly Report of SPSS Inc. for the
         Quarterly period ended September 30, 1993. (File No. 000-22194)

+        Previously filed with the Form S-1 Registration Statement of SPSS Inc.
         filed on June 22, 1993. (File No. 33-64732)

++       Previously filed with the Form S-1 Registration Statement of SPSS Inc.
         filed on December 5, 1994. (File No. 33-86858)

+++      Previously cited with the Form 10-K Annual Report of SPSS Inc. for the
         year ended December 31, 1994. (File No. 000-22194)

x        Previously filed with SPSS Inc.'s 1995 Proxy Statement. (File No.
         000-22194)

xx       Previously filed with the Form 10-K Annual Report of SPSS Inc. for the
         year ended December 31, 1995. (File No. 000-22194)

xxx      Previously filed with SPSS Inc.'s 1996 Proxy Statement. (File No.
         000-22194)

xxxx     Previously filed with the Form 10-K Annual Report of SPSS Inc. for the
         year ended December 31, 1996. (File No. 000-22194)



                                       16
<PAGE>   17
#        Previously filed with the Form 10-Q Quarterly Report of SPSS Inc. for
         the quarterly period ended March 31, 1997. (File No. 000-22194)

##       Previously filed with the Form 10-Q Quarterly Report of SPSS Inc. for
         the quarterly period ended June 30, 1997. (File No. 000-22194)

###      Previously filed with Form 10-K Annual Report of SPSS Inc. for the year
         ended December 31, 1997. (File No. 000-22194)

####     Previously filed with SPSS Inc.'s Report on Form 8-K, dated December
         31, 1998, filed on January 15, 1999, as amended on Form 8-K/A filed
         March 12, 1999. (File No. 000-22194)

&        Previously filed with SPSS Inc.'s 1998 Proxy Statement. (File No.
         000-22194)

$        Previously filed with Forum 10-K Annual Report of SPSS Inc. for the
         year ended December 31, 1998. (File No. 000-22194)

$$       Previously filed with SPSS Inc. Report on Form 8-K, dated November 29,
         1999, filed December 10, 1999. (File No. 000-22194)

$$$      Previously filed with Form 10-Q Quarterly Report of SPSS Inc. for the
         quarterly period ended June 30, 1999. (File No. 000-22194)

$$$$     Previously filed with Form 10-Q Quarterly Report of SPSS Inc. for the
         quarterly period ended September 30, 1999. (File No. 000-22194)

%        Previously filed with SPSS Inc. Form 10-K Annual Report for year ended
         December 31, 1999. (File No. 000-22194)

         (b)      Reports on Form 8-K

                  There were no reports on Form 8-K filed by SPSS during the
         fiscal quarter ended March 31, 2000.


                                       17
<PAGE>   18



                                   SIGNATURES


         Pursuant to the requirements of the securities exchange act of 1934,
the registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.


                                     SPSS INC.



Date: May 15, 2000                   By: /s/ JACK NOONAN
                                         ---------------------------------------
                                         Jack Noonan
                                         President and Chief Executive Officer


         Pursuant to the requirements of the securities exchange act of 1934,
this report has been signed by the undersigned, in his capacity as the principal
financial officer of the registrant.


Date: May 15, 2000                   By: /s/ EDWARD HAMBURG
                                         ---------------------------------------
                                         Edward Hamburg
                                         Executive Vice-president, Corporate
                                         Operations and Chief Financial Officer




                                       18
<PAGE>   19



                                  EXHIBIT INDEX


Exhibit                                                                   Page
Number          Description of Document                                   Number
- ------          -----------------------                                   ------

 10.28           Amendment to Sears Tower Lease, Chicago, Illinois

 15.1            Acknowledgement of Independent Certified Public
                 Accountants Regarding Independent Auditors' Review
                 Report

 27.1            Financial Data Schedule

 27.1(a)         Financial Data Schedule (Restated)



                                       19

<PAGE>   1
                                                                   EXHIBIT 10.28


                               SUBLEASE AGREEMENT

                                 BY AND BETWEEN



                         HARZA ENGINEERING COMPANY, INC.


                                    SUBLESSOR



                                       AND


                                    SPSS INC.


                                    SUBLESSEE



                          DATED AS OF JANUARY 12, 2000









<PAGE>   2


                               SUBLEASE AGREEMENT



     THIS SUBLEASE AGREEMENT (this "Sublease"), made and entered into this 14th
day of January, 2000, between HARZA ENGINEERING COMPANY, INC., a Delaware
corporation ("Sublessor"), and SPSS INC., a Delaware corporation ("Sublessee").


                                    RECITALS

     WHEREAS, Sublessor and ST HOLDINGS, INC., a Delaware corporation ("Lessor")
entered into a Lease dated as of January 14, 1991 (the "Lease"), a copy of which
is attached hereto as Exhibit A; and

     WHEREAS, the Lease demises the Demised Premises (as defined below) and
other office space (herein collectively the "Lease Premises") to Sublessor; and

     WHEREAS, Sublessor desires to sublet the Demised Premises described herein
to Sublessee on the terms and conditions hereinafter set forth;

     NOW, THEREFORE, in consideration of the mutual covenants contained herein,
the parties hereto agree as follows:


                                    ARTICLE I

                                  DEFINED TERMS

     Terms that are defined in the Lease have the same meaning in this Sublease
unless the context clearly indicates that a different meaning is intended.


                                   ARTICLE II

                                DEMISED PREMISES

     Section 2.1. Demise. Sublessor hereby subleases to Sublessee, and Sublessee
hereby subleases from Sublessor, on all of the terms and conditions set forth
herein, the premises (the "Demised Premises") containing 41,577 net rentable
square feet of office space designated on the plan attached hereto as Exhibit B
and located on the ninth and tenth floors of the building (the "Building") known
as the Sears Tower, 233 South Wacker Drive, in the City of Chicago, Illinois.
The Demised Premises shall be divided into two portions, the portion on the
ninth floor equal to 16,479 net rentable square feet and the portion on the
tenth floor equal to 25,098 net rentable square feet, for purposes of the timing
of Sublessee's taking occupancy as described in the following Article IV.




<PAGE>   3


     Section 2.2. Lease; Warranty by Sublessor. Sublessor represents and
warrants to Sublessee that the Lease is in full force and effect and has not
been amended or modified except as expressly set forth therein, that Sublessor
is not in default or breach of any of the provisions of the Lease, and that, to
Sublessor's knowledge, Lessor is not in default or breach of any of the
provisions of the Lease.


                                   ARTICLE III

                            TERM OF LEASE; POSSESSION

     Section 3.1. Term. The term of this Sublease (the "Sublease Term") shall
begin for the tenth floor portion of the Demised Premises (the "Tenth Floor") on
the date that Sublessor notifies Sublessee that Sublessor has vacated possession
of the Tenth Floor (the "Commencement Date"), which shall occur no later than
July 1, 2000, and shall end on June 30, 2006.

If the Commencement Date for the Tenth Floor has not occurred by the following
dates through no fault of Sublessee, Sublessor will have no liability of any
kind whatsoever to Sublessee for any such delay, except that Sublessee will be
given abatement of Base Rent and Rent Adjustments for the Tenth Floor as
follows:

               (i)   After July 1, 2000, two days of such abatement for each
                     day of delay;

               (ii)  After August 1, 2000, three days of such abatement for
                     each day of delay; and

               (iii) After September 1, 2000, four days of such abatement for
                     each day of delay.


If the Commencement Date for the Tenth Floor has not occurred by September 30,
2000 through no fault of Sublessee, Sublessee will have the right and option to
terminate this Sublease by giving written notice to Sublessor at least ten (10)
days prior to the effective date of such termination. If Sublessor then tenders
possession of the Tenth Floor prior to the date selected by Sublessee for such
termination, Sublessee's termination will be null and void, and the Commencement
Date will occur on the date Sublessor tenders possession of the Tenth Floor. If
Sublessor does not tender possession prior to the date selected and specified in
Sublessee's notice, this Sublease will terminate as of said date, and neither
party will have any further obligations to the other. Sublessor agrees to advise
Sublessee from time to time as to the status of the Sublessor's anticipated date
of vacation of the Tenth Floor, but no such advice or discussion shall ever
constitute a representation or warranty of any kind, or a basis of any liability
on the part of Sublessor to Sublessee.



                                       2


<PAGE>   4



     The Commencement Date for the ninth floor portion of the Demised Premises
(the "Ninth Floor") will occur on the first anniversary of the Commencement Date
for the Tenth Floor, and the Sublease Term for the Ninth Floor will also end on
June 30, 2006. If the Commencement Date for the Ninth Floor and the delivery of
possession of said premises by Sublessor to Sublessee has not occurred by the
following dates through no fault of Sublessee, Sublessor will have no liability
of any kind whatsoever to Sublessee for any such delay, except that Sublessee
will be given abatement of Base Rent and Rent Adjustments for the Ninth Floor as
follows:

               (i)   After the first anniversary of the Commencement Date for
                     the Tenth Floor, two days of such abatement for each day
                     of delay for the first thirty (30) days of delay;

               (ii)  If there is further delay, three days of such abatement
                     for each day of delay for the next thirty (30) days of
                     delay; and

               (iii) If there is further delay, four days of such abatement for
                     each day of delay thereafter.

If the Commencement Date for the Ninth Floor has not occurred within ninety (90)
days after the first anniversary of the Commencement Date for the Tenth Floor
through no fault of Sublessee, Sublessee will have the right and option to
terminate this Sublease for the Ninth Floor by giving written notice to
Sublessor at least ten (10) days prior to the effective date of such
termination. If Sublessor then tenders possession of the Ninth Floor prior to
the date selected by Sublessee for such termination, Sublessee's termination
will be null and void, and the Commencement Date for the Ninth Floor will occur
on the date Sublessor tenders possession of the Ninth Floor. If Sublessor does
not tender possession prior to the date selected and specified in Sublessee's
notice, this Sublease for the Ninth Floor only will terminate as of said date,
and neither party will have any further obligations to the other.

         Section 3.2. Condition of Demised Premises. Sublessee acknowledges that
it has inspected, and is fully satisfied with the physical condition of, the
Demised Premises. Neither Sublessor nor any of its representatives has made any
warranties or representations as to the physical condition of either portion of
the Demised Premises upon which Sublessee relies. Each portion of the Demised
Premises shall be delivered to Sublessee vacant and broom clean, and in
substantially the same condition as existed as of the date hereof, ordinary wear
and tear excepted.

     Section 3.3. Possession. Sublessor shall deliver possession of the Tenth
Floor and Ninth Floor to Sublessee on the Commencement Date for each floor as
described in Section 3.1 above.





                                       3


<PAGE>   5


                                   ARTICLE IV

                                      RENT

     Sublessee shall pay rent to Sublessor, at any place or places Sublessor
directs from time to time by written notice to Sublessee, in the following
amounts and at the following rates and times.

     Section 4.1. Base Rent. Annual Base rent shall be paid during the term of
the Lease computed by multiplying the net rentable square feet of the Demised
Premises then being subleased to Sublessee by $12.10 prior to July 1, 2001, and
by $16.00 from and after July 1, 2001, payable monthly in equal monthly
installments in advance on the first (1st) day of each calendar month (in
respect of such month) during the term of this Sublease (and pro rata for the
fraction of any month).

     Section 4.2. Additional Rent. Sublessee shall pay to Sublessor, as
additional rent hereunder ("Additional Rent"), all amounts payable by the tenant
under the Lease and denominated as "Additional Rent" thereunder, including
without limitation the amounts required to be paid by the tenant under the Lease
pursuant to Section 3 thereof (such amounts referred to therein and herein as
"Rent Adjustments"). Sublessor shall advise Sublessee of the amount of any Rent
Adjustments then in effect for the Demised Premises.


                                    ARTICLE V

                            COMPLIANCE WITH THE LEASE

     Section 5.1. Use of Demised Premises. The Demised Premises shall be used by
Sublessee solely and exclusively for the purposes permitted by the Lease.
Sublessor further agrees that the Demised Premises may be used for customer
training and other uses incidental to Sublessee's general office use if Lessor
confirms in the Consent of Lessor attached hereto that such use is permitted.

         Section 5.2. Compliance by Sublessee. Sublessee agrees to comply with
and be bound by the provisions of the Lease, except the following provisions
will not be applicable to Sublessee: (i) the provisions for the payment of Base
Rent (which instead shall be payable as provided in Section 4.1 hereof), (ii)
any option to extend or renew the term of the Lease (including without
limitation the option to extend set forth in Section 32 of the Lease), any
option to expand the Demised Premises (including without limitation the
expansion rights in Section 31 of the Lease or the rights of first offer set
forth in Section 33 of the Lease), none of which options may be exercised by
Sublessee, and the provisions of Section 30 of the Lease providing for the
contraction of the Sublessor's premises, and (iii) the provisions of Section 34
regarding special improvements, except to the extent incorporated into the
provisions of Sections 9.2, 14.9 and 14.10 hereof, and (iv) all provisions
identifying, or purporting to identify, the parties who have acted as brokers in
connection with the Lease (which shall instead be as set forth in Section 14.6
below). All of the other provisions of the Lease are hereby incorporated as
additional terms and


                                       4


<PAGE>   6




covenants of this Sublease as if they were recited herein. Sublessee shall have
all the rights, duties and obligations of the tenant under the Lease in respect
of the Demised Premises, and Sublessor shall have all of the rights, privileges
and remedies of landlord under the Lease. To the extent that Lessor has reserved
the power to consent to or object to an action to be performed by Sublessor, as
tenant under the Lease, Sublessor reserves the same right to consent to or
object to such action by Sublessee under this Sublease, provided Sublessor shall
not unreasonably withhold or delay such consent. Notwithstanding the above, if
any of the terms of the Lease are inconsistent with any terms of this Sublease,
the terms of this Sublease shall control. Sublessee covenants, agrees and
warrants that it will not take any actions which violate the terms and covenants
to be observed by the tenant under the Lease or which result, or with the giving
of notice or the passage of time would result, in a breach of the Lease.
Sublessor may, but shall be under no obligation to, upon prior notice to
Sublessee (except in the case of an emergency, in which case Sublessor shall
deliver notice to Sublessee as promptly as practicable), make any payment,
perform any act and take any and all such actions as Sublessor in its reasonable
discretion deems necessary or appropriate to cure any failure on the part of
Sublessee to do the same as required under the Lease. Any costs or expenses
incurred by Sublessor in remedying any such failure by Sublessee shall be paid
to Sublessor immediately by Sublessee upon demand, and shall be recoverable by
Sublessor as Additional Rent under this Sublease. Sublessee agrees to indemnify
and hold Sublessor harmless from any and all damages, losses, costs and
expenses, including reasonable attorneys' fees, incurred by or imposed on
Sublessor as a result of the nonperformance or nonobservance of any terms and
covenants of the Lease or this Sublease by Sublessee. Whenever the provisions of
the Lease provide for the consent or approval of the Lessor, Sublessee shall
obtain the consent of both the Lessor and Sublessor before proceeding with the
act or other matter for which such consent or approval is required, provided
Sublessor shall not unreasonably withhold or delay its consent.

     Section 5.3. Enforcement of Lessor's Obligations. Sublessor shall have no
obligation to perform any obligations of Lessor under the Lease in respect of
the Demised Premises, but Sublessor agrees to cooperate with Sublessee to
enforce any rights, privileges or remedies available to Sublessor as tenant
under the Lease, so long as Sublessee reimburses Sublessor for any and all costs
and expenses, including reasonable attorneys' fees, incurred by Sublessor in
enforcing any such rights, privileges or remedies. If Sublessor fails to take
appropriate action in accordance with the foregoing in order to enforce the
rights, privileges and remedies of tenant under the Lease, Sublessee shall, to
the extent necessary, have the right and authority to take any such action at
its own expense in the name of and behalf of Sublessor.

     Section 5.4. Performance by Sublessor; Quiet Enjoyment. Sublessor covenants
and agrees that it will pay all rent and other charges due and payable under the
Lease with respect to the entire Lease Premises as and when the same shall
become due and payable, subject to Sublessor's rights and remedies under the
Lease, and that Sublessor will observe and perform all other obligations
required to be observed or performed by Sublessor under the Leasefor the portion
of the Lease Premises occupied by Sublessor, and that, subject to Sublessee's
performance of its obligations under this Sublease, Sublessor will maintain the
Lease in full force and effect and in good standing in respect of the Demised
Premises..



                                        5


<PAGE>   7




     Sublessor further covenants and agrees that Sublessee, upon paying the rent
and the charges provided for herein and upon observing and performing all other
terms, covenants, conditions and agreements contained herein, shall during the
Sublease Term peaceably and quietly have, hold and enjoy the Demised Premises
subject to the terms, covenants, conditions and agreements hereof free from any
hindrance by Sublessor or any person claiming by, through or under Sublessor.


                                   ARTICLE VI

                                    INSURANCE

     Sublessee shall maintain at its sole cost throughout the Sublease Term
hereof policies of insurance issued by major, reputable insurance companies
approved by Sublessor, in its reasonable discretion, with coverages, in amounts
and naming Sublessor and other parties as insureds, all as required by the terms
of the Lease. All such policies shall not be cancelable except upon ten (10)
days prior written notice to Sublessor. Subject to the terms of the Lease,
Sublessor hereby agrees that the insurance maintained by Sublessee in respect of
its other subleased premises on the eleventh and twelfth floors shall be
satisfactory to Sublessor if the same is satisfactory to Lessor.


                                   ARTICLE VII

                            ASSIGNMENT AND SUBLEASING

     Sublessee shall not assign this Sublease, or sublet the Demised Premises,
or any part thereof, without the prior written consent of Sublessor and Lessor,
which consent by Sublessor shall not be unreasonably withheld. This Sublease
shall not be assigned by operation of law. Any assignment, conveyance,
subletting, mortgaging or other transfer by Sublessee of any interest in this
Sublease or the Demised Premises shall be otherwise governed by the terms of the
Lease. If consent is once given by Sublessor to the assignment of this Sublease
or sublease of the Demised Premises or any part thereof, Sublessor shall not be
barred from subsequently refusing to consent to any subsequent assignment or
sublease. Any attempt to assign or sublet without the express written consent of
Sublessor and Lessor shall confer no rights of any kind upon the putative
assignee or sublessee, and shall be deemed a default by Sublessee hereunder.
Notwithstanding the foregoing, Sublessee may, upon delivery of written notice to
Sublessor and subject to the prior written consent of Lessor in accordance with
the terms and provisions of the Lease, assign this Sublease in whole or in part
or sublet or license all or any portion of the Demised Premises to any entity to
which substantially all of the assets, stock or business of Sublessee is
transferred or with which Sublessee is merged or consolidated or to any
affiliate controlling, controlled by or under common control with Sublessee;
provided that Sublessee delivers to Sublessor prior written notice of the name
of any successor company and a copy of the Lessor's consent to such transfer of
this Sublease, and any other documentation reasonably requested by Sublessor,
including a copy of the assignment or sublease document, and provided further in
the case of any assignment or sublease to an affiliate, Sublessee shall remain
fully liable under this Sublease.



                                       6



<PAGE>   8



                                  ARTICLE VIII

                          ALTERATIONS AND IMPROVEMENTS

Sublessee acknowledges that it is taking possession of the Demised Premises in
its `as-is" condition at the time Sublessor transfers possession to Sublessee,
and there is no obligation on the part of Sublessor to make any alterations or
improvements to the Demised Premises. No tenant alterations or improvements that
are necessary or are desired by Sublessee will be installed and constructed
during the Sublease Term without the prior written consent of Sublessor and
Lessor in each instance and without complying with the provisions of Section 8
and other applicable provisions of the Lease, provided Sublessor shall not
unreasonably withhold or delay its consent. Sublessee also acknowledges that a
demising wall will be required to be installed between the Demised Premises and
the remainder of the office space on the tenth floor of the Building. This
demising wall will be installed at the cost and expense of Ernst & Young LLP
(E&Y), who will be subleasing the remainder of the tenth floor from Sublessor.
Further, E&Y and Sublessee have indicated their intent to extend the elevator
service currently serving the 11th through 17th floor to service the 10th floor
of the Building. Sublessee acknowledges and agrees that Sublessor has no
obligation to pay any costs or expenses associated with such elevator work, and
Sublessee and E&Y will share such cost as they may agree in a separate
agreement. Sublessor shall have no obligation to provide any tenant improvements
to the Demises Premises other than are already in place. At the expiration of
the Sublease Term, Sublessee shall comply with the terms of the Lease in
connection with the condition in which the Demised Premises are to be returned
to Lessor.


                                   ARTICLE IX

                           LESSOR'S SERVICES; SIGNAGE

     Section 9.1. Building Services. Sublessee shall look solely and directly to
Lessor for the building services provided for in the Lease. Failure on the part
of Lessor to provide these services shall not be a default by Sublessor of its
obligations under this Sublease. However, in the event that any act, omission,
or failure by Lessor in connection with the furnishing of such services results
in any loss, cost, damage, or expense to Sublessee, Sublessor will cooperate
with Sublessee in attempting to obtain reimbursement from Lessor for such loss,
cost, damage and expense, with any costs incurred by Sublessor being paid by
Sublessee.

     Section 9.2. Signs. Sublessee may erect, maintain, place, and install signs
in the Demised Premises and in the elevator lobby areas on the ninth and tenth
floors in the manner and to the extent permitted by the Lease.



                                       7



<PAGE>   9


                                    ARTICLE X

                                     DEFAULT

     Section 10.1. Default. All of the following events shall be deemed an Event
of Default hereunder:

          (a) failure of Sublessee to pay the Base Rent, Additional Rent or
     other sums due hereunder as and when the same shall be due and payable and
     the continuance of such failure for five (5) days after written notice
     thereof from Sublessor;

          (b) failure of Sublessee to perform any of the obligations required to
     be performed on its part in this Sublease or the Lease and the continuance
     of such failure for thirty (30) days after written notice thereof from
     Sublessor; provided that no Event of Default shall exist hereunder if such
     default or failure by its nature cannot be cured within thirty (30) days by
     reasonable effort and if Sublessee commences to cure such default or
     failure within said thirty (30) day period and thereafter diligently
     pursues such cure and completes such cure within one hundred twenty (120)
     days after the initial written notice from Sublessor;

          (c) the existence of a hazardous condition and the failure to cure the
     same promptly upon written notice to Sublessee;

          (d) any voluntary petition or similar pleading under any bankruptcy
     act or under any Federal or State law seeking reorganization or arrangement
     with creditors or adjustment of debts, is filed by or against Sublessee, or
     if any such petition or pleading is involuntary, and it is not adjudicated
     favorably to Sublessee within sixty (60) days after its filing;

          (e) Sublessee admits its inability to pay its debts, or if a receiver,
     trustee or other court appointee is appointed for all or a substantial part
     of Sublessee's property;

          (f) Sublessee makes an assignment for the benefit of creditors, or if
     any proceedings are filed by or against Sublessee to declare Sublessee
     insolvent or unable to meet its debts;

          (g) a receiver or similar type of appointment of court appointee or
     nominee of any name or character is made for Sublessee or its property;

          (h) Sublessee assigns or subleases its interest herein contrary to the
     provisions of Article VII hereof; or

          (i) an event of default (after the expiration of any applicable cure
     period) has occurred under the Lease due to the acts or omissions of
     Sublessee.

     Section 10.2. Remedies. If an Event of Default occurs, Sublessor may
exercise any one or more of the following rights and remedies in addition to any
other rights and remedies at law or in equity:





                                       8


<PAGE>   10


          (a) terminate this Sublease and the Sublease Term created hereby, and
     Sublessee's right to possession of the Demised Premises; or

          (b) without terminating this Sublease, terminate Sublessee's right to
     possession of the Demised Premises and repossess the Demised Premises by
     forcible entry and detainer suit, by taking peaceful possession or
     otherwise.

Upon any termination of this Sublease, Sublessee shall surrender possession and
vacate the Demised Premises immediately and deliver possession thereof to
Sublessor and hereby grants to Sublessor full and free license to reenter the
Demised Premises, or any part thereof, and retake possession thereof, with or
without process of law, and to remove Sublessee and any others who may be
occupying or within the Demised Premises and to remove any and all property
therefrom, using such force as may be necessary, without being deemed in any
manner guilty of trespass, eviction, forcible entry or detainer or conversion of
property, and without relinquishing Sublessor's rights to Base Rent, Additional
Rent or any other right given to Sublessor hereunder or by operation of law.

If Sublessor shall terminate Sublessee's right of possession without terminating
this Sublease, the obligation of Sublessee to pay all amounts due hereunder
during the full Sublease Term shall not be deemed to be waived, released or
terminated and Sublessee shall continue to be obligated to pay to Sublessor all
Base Rent, Additional Rent and all amounts due hereunder specified in this
Sublease for the balance of the Sublease Term plus any other sums then due
Sublessor hereunder. Upon and after entry into possession without termination of
this Sublease, Sublessor may, at its discretion, either itself occupy the whole
or any part of the Demised Premises or use reasonable efforts to relet same upon
such terms and conditions and for such rent as Sublessor may in its discretion
deem proper. In such case, Sublessor may make such repairs, alterations and
additions in or to the Demised Premises, and redecorate the same to the extent
deemed by Sublessor necessary and desirable, and Sublessee shall, upon demand,
pay the cost thereof, together with Sublessor's expenses of reletting. Upon each
such reletting, all rentals and other sums received by Sublessor from such
reletting shall be applied as follows: first, to the payment of any indebtedness
other than Base Rent and Additional Rent due hereunder from Sublessee to
Sublessor; second, to the payment of any costs and expenses of such reletting,
including brokerage fees and attorney's fees, and of costs of such alterations
and repairs; third, to the payment of Base Rent, Additional Rent and other
charges due and unpaid hereunder; and the residue, if any, shall be retained by
Sublessor. Sublessee shall not be entitled to any rents received by Sublessor in
excess of the rent provided for this Sublease. If such rentals and other sums
received from such reletting during any month be less than that to be paid
during that month by Sublessee hereunder, Sublessee shall pay such deficiency to
Sublessor. Such deficiency shall be calculated and paid monthly. No such
re-entry or taking possession of the Demised Premises by Sublessor shall be
construed as an election on its part to terminate this Sublease unless a written
notice of such intention be given to Sublessee or unless the termination thereof
be decreed by a court of competent jurisdiction. Notwithstanding any such
reletting without termination, Sublessor may at any time thereafter elect to
terminate this Sublease.

Should Sublessor at any time terminate this Sublease for any default, in
addition to any other remedies it may have, it may recover from Sublessee all
damages it may incur by reason of such default, including the cost of recovering
the Demised Premises, the cost of repairs, remodeling and alterations



                                       9



<PAGE>   11




necessary to relet the Demised Premises, attorneys' fees, any other sum of money
and damages due and to become due to Sublessor from Sublessee, all of which
amounts shall be immediately due and payable from Sublessee to Sublessor.

In the event of any entry and taking possession of the Demised Premises,
Sublessor may, at its option, remove therefrom all or any personal property
located therein and may place the same in storage at a commercial warehouse for
the account of, and at the risk and expense of, Sublessee and/or the owner or
owners thereof, but Sublessor shall in no event be liable to Sublessee for any
damage hereto.

     Section 10.3. Costs and Expenses. In case suit shall be brought by
Sublessor for recovery of possession of the Demised Premises, for the recovery
of rent, or any other amount due under the provisions of this Sublease, or in
the event suit shall be brought by either Sublessor or Sublessee because of the
breach of any other covenant or agreement contained herein, the non-prevailing
party shall pay to the prevailing party, upon demand, all expenses incurred
therefor, including attorneys' fees.


                                   ARTICLE XI

                             DAMAGE OR CONDEMNATION

     Section 11.1 Termination. If Lessor or Sublessor elect to terminate the
Lease after an event of casualty or condemnation as provided in the Lease, this
Sublease will be terminated at the same time. Sublessee will have no claim
against Sublessor or otherwise by reason of such termination, and Sublessee will
have no interest in any insurance proceeds other than from its own policies or
any condemnation award.

     Section 11.2 Non-Termination. If a casualty or condemnation occurs and
Lessor and Sublessor do not elect to terminate the Lease, this Sublease will
remain in full force and effect, and neither Sublessor nor Sublessee will have
the right to terminate this Sublease by reason of such casualty or condemnation.
Sublessee will be entitled to any abatement of rent to the extent an abatement
is provided to Sublessor on account of a casualty or condemnation.


                                   ARTICLE XII

                         WAIVER OF CLAIMS AND INDEMNITY

     Section 12.1. Waiver. To the extent not expressly prohibited by law,
Sublessee hereby releases and waives all claims against Sublessor, its agents,
employees and servants, for injury or damage to person, property or business
sustained in or about the Demised Premises by Sublessee, its agents, employees
or servants, other than by reason of the negligence or willfulness of Sublessor
or its agents, employees or servants.

     Section 12.2. Indemnity. Sublessee hereby indemnifies and holds harmless
Sublessor, its agents, employees and servants, against any and all claims,
demands, costs and expenses of every kind


                                       10


<PAGE>   12



and nature, including attorneys' fees, arising from Sublessee's occupancy of the
Demised Premises or from any breach or default on the part of Sublessee in the
performance of any agreement of Sublessee to be performed pursuant to the terms
of this Sublease, or from any act or neglect of Sublessee, its respective
employees, agents, guests, servants, invitees or customers in or about the
Demised Premises. In case any such proceeding is brought by any of said persons,
Sublessee covenants, at the request of Sublessor, to defend such proceeding, at
its sole cost and expense, by legal counsel reasonably satisfactory to
Sublessor.

     Sublessor hereby indemnifies and holds harmless Sublessee, its agents,
employees and servants, against any and all claims, demands, costs and expenses
of every kind and nature, including attorneys' fees, arising from any breach or
default on the part of Sublessor in the performance of any agreement of
Sublessor to be performed pursuant to the terms of this Sublease, or from any
act or neglect of Sublessor, its respective employees, agents, guests, servants,
invitees or customers in respect of the Demised Premises. In case any such
proceeding is brought by any of said persons, Sublessor covenants, at the
request of Sublessee, to defend such proceeding, at its sole costs and expense,
by legal counsel reasonably satisfactory to Sublessee.

     Section 12.3. Damages from Certain Causes. Sublessor shall not be liable or
responsible to Sublessee for any loss or damage to any property or person
occasioned by theft, fire, act of God, public enemy, injunction, riot, strike,
insurrection, war, court order, requisition or order of governmental body or
authority, or for any damage or inconvenience which may arise through repair or
alteration of any part of the Demised Premises, or failure to make any such
repairs.


                                  ARTICLE XIII

                               ACCESS TO PREMISES

     Sublessor shall have the right to enter the Demised Premises during
ordinary business hours for the purpose of observing the condition of the
Demised Premises, provided that Sublessor shall give Sublessee reasonable prior
notice of any such entry and Sublessee shall have the right to require that a
representative of Sublessee accompany any representative of Sublessor during any
such visit to the Demised Premises. Such visits to the Premises by the Sublessor
shall be conducted so as to avoid to the extent reasonably possible any
interference with the business of Sublessee. Sublessee will permit Lessor and
the agents of Lessor to enter the Demised Premises at all times provided under
the Lease.


                                   ARTICLE XIV

                            MISCELLANEOUS PROVISIONS

     Section 14.1. Notices. All notices, consents and other communications
required or permitted hereunder shall be in writing and shall be mailed, hand
delivered, or sent by overnight courier service, to Sublessee or Sublessor as
follows:



                                       11



<PAGE>   13


     If to Sublessor: Harza Engineering Company, Inc.




     If to Sublessee:  SPSS Inc.
                       233 South Wacker Drive
                       Sears Tower, 11th Floor
                       Chicago, Illinois  60606-6307
                       Attn:   Terrence Schohn
                               Senior Director, Corporate Administration

or to such additional or other persons, at such other address or addresses as
may be designated by notice from Sublessor or Sublessee, as the case may be, to
the other. Notices by mail shall be sent by United States certified or
registered mail, return receipt requested, postage prepaid. Notices by mail
shall be deemed given and effective three business days following posting in the
United States mails. Notices by hand delivery shall be deemed given and
effective upon the delivery thereof. Notices by overnight courier shall be
deemed given and effective on the first business day following the delivery
thereof to the courier service.

     Section 14.2. Partial Validity. If any term or provision of this Sublease
or its application to any person or circumstance is, to any extent, invalid or
unenforceable, the remainder of the Sublease or of the application to other
persons or circumstances shall not be affected thereby, and each term and
provision shall be valid and enforced to the fullest extent permitted by law.

     Section 14.3. Headings. The headings in this Sublease are for convenience
and reference only. They are not a part of this Sublease and do not in any way
limit or amplify its terms and provisions.

     Section 14.4. Entire Agreement. This instrument contains the entire and
only agreement between the parties respecting its subject matter. No oral
statements or representations, or prior written matter not contained herein,
shall have any fore or effect. This instrument shall not be modified in any way
except by the parties' written agreement.

     Section 14.5. Waiver of Trial by Jury. Sublessor and Sublessee each hereby
waive trial by jury in any action, proceeding, or counterclaim brought by one
against the other, or any matters arising out of or in any way connected with
this Sublease, the relationship of Sublessor and Sublessee, Sublessee's use or
occupancy of the Demised Premises, or any claim of injury or damage.

     Section 14.6. Brokers. Each of Sublessor and Sublessee warrants to the
other that except for Grubb & Ellis, for Sublessor, no broker negotiated or
participated in the negotiations of this Sublease or is entitled to any
commission in connection herewith. Sublessee agrees to indemnify



                                       12




<PAGE>   14




and hold Sublessor harmless from any claim for brokerage commission by any other
broker who claims to have represented Sublessee in connection with this
Sublease.

     Section 14.7. Conditions to Effectiveness of Sublease. The effectiveness of
this Sublease is subject to and requires the fulfillment of the following
conditions:

     (a) Obtaining the consent of Lessor to this sublease transaction prior to
March 1, 2000, in the form of Lessor's Consent attached hereto, or if Lessor
will not give its consent in such form, then in such form as Lessor, Sublessor
and Sublessee shall reasonably agree. Immediately upon the execution hereof,
Sublessor will submit Lessor's Consent and this Sublease to Lessor for execution
and consent; and

     (b) That Sublessor enter into a lease for space in another building for the
relocation of its headquarters offices from the Building by March 1, 2000; and

     (c) That Lessor waives its right to terminate the Lease for the Demised
Premises and recapture the space as provided in the Lease. Sublessor gave notice
to Lessor on December 20, 1999, as required under the Lease to commence the time
for Lessor to give its response for the exercise of this right and which right
if not exercised within thirty (30) days as required under Section 15.E of the
Lease, will expire with respect to this Sublease; and

     (d) That Sublessor enter into a sublease with Ernst & Young LLP ("E&Y") for
the portion of the tenth floor of the Building not included in the Demised
Premises.

If any of the above conditions (a), (c) or (d) are not fulfilled within the time
period specified above, then either party will have the right to terminate this
Sublease by giving written notice to the other prior to the time that such
condition has been fulfilled, and neither party will have any further liability
to the other on account of such termination. If condition (b) is not fulfilled
within the time period specified, then Sublessor, and only Sublessor, will have
the option of terminating this Sublease, provided Sublessor may exercise such
termination option only by delivery of notice to Sublessee not later than March
15, 2000. If so exercised, neither party will have any further liability to the
other on account of such termination.

     Section 14.8. Mutual Delivery of Notices. Sublessor and Sublessee will
deliver to each other true, correct and complete copies of any notices, demands,
communications or other documents received from or given by them to Lessor from
and after the Commencement Date relating to the Demised Premises.

     Section 14.9. Stairwells. Sublessee shall have the right, subject to and in
accordance with the terms of the Lease, to use the existing Building stairwells
located at the northeast, southeast and southwest corners of the Building for
internal circulation between the ninth and tenth floors (and also for the
benefit of Sublessee's other subleased premises on the eleventh and twelfth
floors). Sublessee shall also have the right, at its cost and expense, to
install a key card or similar access system reasonably acceptable to Lessor and
Sublessor on the stairwell side of each door leading from such stairwells into
the Demised Premises.





                                       13


<PAGE>   15


     Section 14.10. Rooftop Communications Equipment. Sublessor hereby grants
and assigns to Sublessee all of Sublessor's rights under Section 34.D of the
Lease to install a microwave antenna on the roof of the Building. Any such
installation shall be at the sole cost and expense of Sublessee, and Sublessee
shall be responsible for paying any and all rental and other charges payable to
Lessor in respect of any such antenna installed by Sublessee.

     Section 14.11. Estoppel Certificates. Sublessee agrees that from time to
time (but not more frequently than twice each year and also in connection with
any sale, assignment or financing by Sublessor), upon not less than fifteen (15)
days prior written request by Sublessor, to deliver to Sublessor an estoppel
certificate in the form prescribed by Section 18 of the Lease, which certificate
may be for the benefit of both Sublessor and Lessor.

     Sublessor agrees that from time to time (but not more frequently than twice
each year and also in connection with any sale, assignment, sublease or
financing by Sublessee), upon not less than fifteen (15) days prior written
request by Sublessee, Sublessor shall deliver to Sublessee an estoppel
certificate in writing certifying (a) that this Sublease is unmodified and in
full force and effect (or if there have been modifications that the Sublease, as
modified, is in full force and effect); (b) the dates to which the rent and
other sums payable under this Sublease have been paid; (c) that, to Sublessor's
knowledge, neither Sublessor nor Sublessee is in default under any provision of
this Sublease, or, if in default, the nature thereof in reasonable detail; and
(d) such other matters reasonably requested by Sublessee.

     14.12. Renewal Option. Sublessor hereby agrees, at the request of
Sublessee, to exercise Sublessor's option to renew the Lease for the five-year
Renewal Option provided by Section 32 of the Lease, and in connection therewith
to renew the Sublease Term ("Sublease Renewal Option") for a corresponding
five-year extended term ("Sublease Extended Term") subject to and in accordance
with the terms of this section 14.12. If Sublessee desires to exercise the
Sublease Renewal Option, Sublessee shall so notify Sublessor in writing not
later than the first day of the 25th month preceding the then current expiration
of the Sublease Term; and such notice shall be effective only if: (i) Sublessee
is not in default under the terms hereof, (ii) E & Y validly exercises a
corresponding renewal option to extend the term of its sublease with Sublessor
(or, if E & Y fails to exercise such renewal option, Sublessee commits to
sublease E & Y's space for the Sublease Extended Term), and (iii) either the
entire 9th floor of the Building is then subleased to Sublessee and/or E & Y, or
Sublessee and/or E & Y commit in writing to sublease, effective as of the
commencement of the Sublease Extended Term, the balance of the 9th floor not
then under sublease to them. The Sublease Extended Term shall be on all of the
same terms and conditions hereunder as applicable to the initial Sublease Term
except that the Base Rent during the Sublease Extended Term shall be the "Market
Rent" as determined in accordance with Section 32 of the Lease; and Sublessor
and Sublessee agree to cooperate with each other in dealing with Lessor with
respect to the determination of the Market Rent pursuant to the terms of the
Lease. If the Sublease Renewal Option is exercised in accordance with the
foregoing, Sublessor and Sublessee shall enter into a Sublease Amendment
incorporating such extension at the same time that Sublessor enters into an
amendment to the Lease with Lessor for the Extended Term under the Lease.
Sublessee shall pay an allocable share based on the ratio of space being sublet
by



                                       14


<PAGE>   16




Sublessee and E & Y of any and all reasonable costs and expenses incurred by
Sublessor in connection with such renewal.

     14.13. First Refusal Right. Sublessor hereby grants to Sublessee, in
accordance with the terms of this Section 14.13, a right of first refusal to
sublease any space on the 9th floor of the Building that Sublessor desires to
sublease to any third party at any time during the Sublease Term. If Sublessor
makes or receives a definitive offer to sublease any portion of the 9th floor to
any third party, prior to entering into such sublease, Sublessor shall offer
(the "First Refusal Offer") to add such space to this Sublease for a term
expiring on the same date as the Sublease Term hereunder but at such rental rate
(taking into account all inducements and discounts) as Sublessor intends to
sublease the space to such third party. Sublessor shall promptly deliver to
Sublessee written notice of any such offer made to or received from a third
party (including all material terms and conditions thereof), and Sublessee shall
have ten (10) days within which to accept Sublessor's First Refusal Offer in
writing. If Sublessee does not accept Sublessor's First Refusal Offer within
said 10-day period, then Sublessor shall be entitled to enter into a sublease
with such third party at any time within 90 days thereafter on the terms quoted
in the First Refusal Offer; and if Sublessor does not so enter into such a
sublease with such third party, then Sublessee's first refusal right shall again
be applicable in respect of such space. Sublessee's failure to exercise its
first refusal right hereunder with respect to any portion of the 9th floor shall
not affect or limit Sublessee's first refusal right with respect to any other
portion of the 9th floor.




                                       15




<PAGE>   17



     IN WITNESS WHEREOF, Sublessor and Sublessee have caused this Sublease to be
duly executed as of the day and year first above written.

                         SUBLESSOR:
                         ----------

                         HARZA ENGINEERING COMPANY, INC.
                             a Delaware corporation



                         By: /s/Paul Lambert
                             ---------------------------------------
                             Its: Vice President
                             ---------------------------------------

                         SUBLESSEE:
                         ----------

                         SPSS INC.
                             a Delaware corporation



                         By: /s/ Edward Hamburg
                             ---------------------------------------
                             Its: Executive Vice President & CFO
                             ---------------------------------------





                                       16



<PAGE>   18


                                CONSENT OF LESSOR
                                -----------------

     The undersigned, as Lessor under the Lease, hereby consents to all of the
terms and conditions of this Sublease. The undersigned acknowledges that its
consent as evidenced below satisfies the requirements of Section 15 of the
Lease. The undersigned hereby certifies to Sublessor and Sublessee the
following: (a) the Lease has not been cancelled, modified, assigned, extended or
amended; (b) Sublessor, as tenant under the Lease, is not in default under the
terms of the Lease, nor has any event occurred which, with the giving of notice
or the passage of time, or both, may become a default under the terms of the
Lease; and (c) the Lease is in full force and effect. Lessor acknowledges and
agrees that Sublessee may use the Demised Premises in the same manner that
Sublessee uses its other office space in the Building, which includes customer
training and other uses incidental to Sublessee's general office use.

Date:                       ,         .
         -------------------  --------



                                           -----------------------------------

                                           By:
                                              --------------------------------
                                           Name:
                                                ------------------------------
                                           Title:
                                                  ----------------------------






                                       17



<PAGE>   19


                                    EXHIBIT A
                                    ---------

                                      LEASE



<PAGE>   20





                                    EXHIBIT B
                                    ---------

                          PLAN OF THE DEMISED PREMISES



<PAGE>   1
                                                                    EXHIBIT 15.1



                          ACKNOWLEDGMENT OF INDEPENDENT
                          CERTIFIED PUBLIC ACCOUNTANTS
                  REGARDING INDEPENDENT AUDITORS' REVIEW REPORT


The Board of Directors
SPSS Inc.:

With respect to the registration statements on Form S-8 (nos. 333-25869,
33-73130, 33-80799, 33-73120, 333-63167 and 33-74402), on Form S-3 (nos.
333-41207, 333-21025, 333-10423 and 333-30460) and on Form S-4 (no. 333-15427)
of SPSS Inc., we acknowledge our awareness of the use therein of our report
dated May 10, 2000 related to our review of interim financial information.

Pursuant to Rule 436(c) under the Securities Act of 1933, such report is not
considered part of a registration statement prepared or certified by an
accountant or a report prepared or certified by an accountant within the meaning
of sections 7 and 11 of the Act.




                                                              /s/ KPMG LLP



Chicago, Illinois
May 12, 2000


<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM SPSS INC.
AND SUBSIDIARIES CONSOLIDATED BALANCE SHEET AT MARCH 31, 2000 AND CONSOLIDATED
STATEMENT OF INCOME FOR THE THREE MONTHS ENDED MARCH 31, 2000 AND IS QUALIFIED
IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>

<S>                             <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1999             DEC-31-1999
<PERIOD-END>                               MAR-31-2000             DEC-31-2000
<CASH>                                               0                  13,651
<SECURITIES>                                         0                       0
<RECEIVABLES>                                        0                  45,285
<ALLOWANCES>                                         0                   2,194
<INVENTORY>                                          0                   3,113
<CURRENT-ASSETS>                                     0                  66,643
<PP&E>                                               0                  44,562
<DEPRECIATION>                                       0                  26,705
<TOTAL-ASSETS>                                       0                 110,355
<CURRENT-LIABILITIES>                                0                  39,005
<BONDS>                                              0                   1,033
                                0                       0
                                          0                       0
<COMMON>                                             0                      97
<OTHER-SE>                                           0                  65,919
<TOTAL-LIABILITY-AND-EQUITY>                         0                 110,355
<SALES>                                         37,803                  37,803
<TOTAL-REVENUES>                                37,803                  37,803
<CGS>                                            3,174                   3,174
<TOTAL-COSTS>                                    3,174                   3,174
<OTHER-EXPENSES>                                27,984                  27,984
<LOSS-PROVISION>                                  (99)                    (99)
<INTEREST-EXPENSE>                                 258                     258
<INCOME-PRETAX>                                  6,095                   6,095
<INCOME-TAX>                                     2,316                   2,316
<INCOME-CONTINUING>                              3,779                   3,779
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                     3,779                   3,779
<EPS-BASIC>                                       0.39                    0.39
<EPS-DILUTED>                                     0.36                    0.36


</TABLE>

<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM SPSS INC.
AND SUBSIDIARIES CONSOLIDATED BALANCE SHEET AT MARCH 31, 1999 AND CONSOLIDATED
STATEMENT OF INCOME FOR THE THREE MONTHS ENDED MARCH 31, 1999 AND IS QUALIFIED
IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>

<S>                             <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1998             DEC-31-1998
<PERIOD-END>                               MAR-31-1999             DEC-31-1999
<CASH>                                               0                  14,925
<SECURITIES>                                         0                       0
<RECEIVABLES>                                        0                  35,241
<ALLOWANCES>                                         0                   1,860
<INVENTORY>                                          0                   3,094
<CURRENT-ASSETS>                                     0                  56,100
<PP&E>                                               0                  40,537
<DEPRECIATION>                                       0                  23,850
<TOTAL-ASSETS>                                       0                  93,210
<CURRENT-LIABILITIES>                                0                  41,968
<BONDS>                                              0                   1,100
                                0                       0
                                          0                       0
<COMMON>                                             0                      95
<OTHER-SE>                                           0                  47,387
<TOTAL-LIABILITY-AND-EQUITY>                         0                  93,210
<SALES>                                         32,997                  32,997
<TOTAL-REVENUES>                                32,997                  32,997
<CGS>                                            2,683                   2,683
<TOTAL-COSTS>                                    2,683                   2,683
<OTHER-EXPENSES>                                25,028                  25,028
<LOSS-PROVISION>                                   241                     241
<INTEREST-EXPENSE>                                  79                      79
<INCOME-PRETAX>                                  5,106                   5,106
<INCOME-TAX>                                     1,766                   1,766
<INCOME-CONTINUING>                              3,340                   3,340
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                     3,340                   3,340
<EPS-BASIC>                                       0.35                    0.35
<EPS-DILUTED>                                     0.33                    0.33


</TABLE>


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