1 EXHIBIT 21 LIST OF SUBSIDIARIES 2 EXHIBIT 21 ---------- GRAYBAR ELECTRIC COMPANY, INC. LIST OF SUBSIDIARIES -------------------- Graybar Foreign Sales Corporation, a Barbados corporation. Graybar International, Inc., a Missouri corporation doing business in the territory of Puerto Rico. Graybar Financial Services, Inc., a Missouri corporation. Graybar International Guam, Inc., a Missouri corporation. Graybar Electric de Mexico, S.A. de C.V., a Mexican corporation. Graybar Free Zone, S.A., a Panamanian corporation. Graybar Electric Limited, a Canadian corporation. Graybar Foundation, Inc., a Missouri corporation. Graybar Services, Inc., an Illinois corporation. Cognitive Training Corporation, a Missouri corporation. Distribution Associates, Inc., a Missouri corporation. Graybar Electric (Ontario) Limited, a Canadian corporation Graybar Holdings Limited, a Canadian corporation. Graybar-P&M International PTE LTD, a Singapore corporation.