<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 DECEMBER 31, 1999
(AUDITED), AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL
STATEMENTS.
</LEGEND>
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-END> DEC-31-1999
<CASH> 711,612
<SECURITIES> 0
<RECEIVABLES> 108,709
<ALLOWANCES> 0
<INVENTORY> 37,050
<CURRENT-ASSETS> 934,405
<PP&E> 19,902
<DEPRECIATION> (901)
<TOTAL-ASSETS> 962,878
<CURRENT-LIABILITIES> 126,849
<BONDS> 0
0
0
<COMMON> 1,707,878
<OTHER-SE> (871,849)
<TOTAL-LIABILITY-AND-EQUITY> 962,878
<SALES> 195,295
<TOTAL-REVENUES> 195,295
<CGS> 144,162
<TOTAL-COSTS> 144,162
<OTHER-EXPENSES> 587,983
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 0
<INCOME-PRETAX> (524,499)
<INCOME-TAX> 0
<INCOME-CONTINUING> (524,499)
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> (524,499)
<EPS-BASIC> (0.05)
<EPS-DILUTED> (0.05)
</TABLE>