<TABLE> <S> <C>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM WESCO
INTERNATIONAL, INC. AND SUBSIDIARIES' UNAUDITED INTERIM CONDENSED CONSOLIDATED
FINANCIAL STATEMENTS AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-30-2000
<CASH> 17,239
<SECURITIES> 0
<RECEIVABLES> 272,313
<ALLOWANCES> 6,955
<INVENTORY> 435,907
<CURRENT-ASSETS> 762,822
<PP&E> 119,109
<DEPRECIATION> 0
<TOTAL-ASSETS> 1,152,211
<CURRENT-LIABILITIES> 550,211
<BONDS> 447,928
0
0
<COMMON> 485
<OTHER-SE> 119,188
<TOTAL-LIABILITY-AND-EQUITY> 1,152,211
<SALES> 1,912,671
<TOTAL-REVENUES> 1,912,671
<CGS> 1,577,062
<TOTAL-COSTS> 1,843,220
<OTHER-EXPENSES> 11,249
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 21,619
<INCOME-PRETAX> 36,583
<INCOME-TAX> 14,597
<INCOME-CONTINUING> 21,986
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 21,986
<EPS-BASIC> .048
<EPS-DILUTED> .045
</TABLE>