<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM FINANCIAL
STATEMENTS OF MIRENCO, INC., A DEVELOPMENT STAGE COMPANY, FOR JULY 31, 2000
(UNAUDITED), AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL
STATEMENTS.
</LEGEND>
<S> <C>
<PERIOD-TYPE> 7-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> JUL-31-2000
<CASH> 6,822,574
<SECURITIES> 0
<RECEIVABLES> 9,861
<ALLOWANCES> 0
<INVENTORY> 113,513
<CURRENT-ASSETS> 7,084,411
<PP&E> 145,746
<DEPRECIATION> (6,625)
<TOTAL-ASSETS> 7,233,075
<CURRENT-LIABILITIES> 280,340
<BONDS> 0
0
0
<COMMON> 8,549,851
<OTHER-SE> (1,597,116)
<TOTAL-LIABILITY-AND-EQUITY> 7,233,075
<SALES> 48,725
<TOTAL-REVENUES> 48,725
<CGS> 99,690
<TOTAL-COSTS> 99,690
<OTHER-EXPENSES> 522,531
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 0
<INCOME-PRETAX> (500,267)
<INCOME-TAX> 0
<INCOME-CONTINUING> (500,267)
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> (500,267)
<EPS-BASIC> (0.04)
<EPS-DILUTED> (0.04)
</TABLE>