EXHIBIT 23.01 CONSENT OF INDEPENDENT ACCOUNTANTS ---------------------------------- We hereby consent to the incorporation by reference in the Registration Statement on Form S-8 (No. 333-91187) of WESCO International, Inc. of our report dated May 9, 2003 relating to the financial statements of the WESCO Distribution, Inc. Retirement Savings Plan, which appears in this Form 11-K. /s/ PricewaterhouseCoopers LLP - ------------------------------ Pittsburgh, Pennsylvania June 24, 2003 14