Exhibit 23.1
Report on Financial Statement Schedule and Consent of Independent Auditors
The Board of Directors
Siebel Systems, Inc.
The audits referred to in our report dated January 24, 2000, except for Notes 10
and 11 which are as of September 25, 2000, included the related financial statement schedule as of
December 31, 1999, and for each of the years in the three-year period ended December 31, 1999. The
financial statement schedule is the responsibility of the Company's management. Our responsibility
is to express an opinion on the financial statement schedule based on our audits. In our opinion,
the financial statement schedule, when considered in relation to the basic consolidated financial
statements taken as a whole, presents fairly in all material respects, the information set forth
therein.
We consent to incorporation by reference in the registration statements on Forms
S-3 (Nos. 333-36967, 333-40437, 333-68041, 333-91777, and 333-94261) and Forms S-8 (Nos. 333-07983,
333-22763, 333-40259, 333-53369, 333-72969, 333-85007, 333-94243, and 333-41792) of Siebel Systems,
Inc. of our reports dated January 24, 2000, except Notes 10 and 11 which are as of September 25,
2000, relating to the consolidated balance sheets of Siebel Systems, Inc. and subsidiaries as of
December 31, 1999 and 1998, and the related consolidated statements of operations and comprehensive
income (loss), stockholders' equity and cash flows for each of the years in the three-year period
ended December 31, 1999, and related financial statement schedule, which reports appear in the
current report on Form 8-K dated September 27, 2000 of Siebel Systems, Inc.
/s/ KPMG LLP
Mountain View, California
September 27, 2000
