| Beacon Electric Supply,* San Diego | Gexpro (IESCO), Dallas |
| Robson Electric Supply,* Johnson City, N.Y. | Friedman Electric/Sonepar USA |
| ESSCO Wholesale Electric,* Chandler, Ariz. | Sonepar USA, Philadelphia |
| Hagemeyer North American operations,* Charleston, S.C. | Sonepar USA, Philadelphia |
| Total Supply Solutions | Anixter Inc., Glenview, Ill. |
| Eurofast SAS, Collegien, France | Anixter Inc., Glenview, Ill. |
| Minnesota Electric Supply Co., Willmar, Minn. | Border States, Fargo, N.D. |
| US Electrical Services Inc. LLC, Exton, Pa. | Consolidated Electrical Distributors Inc., Westlake Village, Calif. |
| McNaughton-McKay Electric Co., Madison Heights, Mich. | ESOP |
| Breva, Zonhoven, Belgium | Hagemeyer, Naarden, Netherlands |
| Bryant Electric Supply Co. Inc., Lowell, N.C. | Hagemeyer, Naarden, Netherlands |
| Wyrotech, St. Laurent, Quebec | Industrial Electric Wire and Cable, New Berlin, Wis. |
| Lappin Lighting, Minneapolis | J.H. Larson, Plymouth, Minn. |
| Roden Electrical Supply Co., Knoxville, Tenn. | Kendall Electric, Battle Creek, Mich. |
| Classic Electric Supply Inc., Forest Park, Ill. | LAB Development LLC, Highland Park, Ill. |
| McFeely's Square Drive Screws, Lynchburg, Va. | Lab Safety Supply subsidiary of W.W. Grainger, Lake Forest, Ill. |
| Lighting & Lamp Corp. (Panama Beach, Fla., branch) | Mayer Electric Supply, Birmingham, Ala. |
| S+S/S&D GmbH, Wegberg, Germany | McNaughton-McKay, Madison Heights, Mich. |
| Michigan Chandelier West Inc., Ann Arbor, Mich. | McNaughton-McKay, Madison Heights, Mich. |
| Yankee Electric Supply, Winooski, Vt. | NESCO/Needham Electric Supply Corp., Canton, Mass. |
| Norwell Electric Supply, Norwell, Mass. | NESCO/Needham Electric Supply Corp., Canton, Mass. |
| HD Supply Inc., Orlando, Fla. | Clayton Dubilier & Rice, Bain Capital Partners and Carlyle Group (private-equity firms) |
| Tri-Valley Electric Supply, Casa Grande, Ariz. | Rexel USA, Dallas |
| Crawford Electric Supply Co., Dallas | Sonepar USA, Philadelphia |
| Burmeister Electric Co., Minneapolis | Sonepar USA, Philadelphia/Stuart C. Irby |
| High Voltage Testing Laboratories, Fargo, N.D. | Sonepar USA, Philadelphia/Stuart C. Irby |
| Ralph Pill Electric Supply, Boston | Sonepar USA/ Northeast Electrical Distributors/ Eagle Electric Supply |
| Hobert N. Grubb, Wytherville, Va. | State Electric Supply Co., Huntington, W.Va. |
| Shepherd Electric Supply, Raleigh, N.C. | State Electric Supply Co., Huntington, W.Va. |
| Cape Electrical Supply, Cape Girardeau, Mo. | Svoboda Collins LLC (private-equity firm) |
| Hampden-Zimmerman Electric Supply Co., Springfield, Mass. | US Electrical Services Inc. LLC, Exton, Pa. |
| Lade Electrical Supply, Stone Mountain, Ga. | US Electrical Services Inc. LLC, Exton, Pa. |
| Rahway Electric Supply Co., Inc., Rahway, N.J. | US Electrical Services Inc. LLC, Exton, Pa. |
| Asbury Park Electric Supply, Asbury Park, N.J. | US Electrical Services Inc. LLC, Exton, Pa. |
| Max Goldman Inc., New Rochelle, N.Y. | US Electrical Services Inc. LLC, Exton, Pa. |
| Pioneer Electric Supply, Beltsville, Md. | US Electrical Services Inc. LLC, Exton, Pa. |
| Cascade Controls, Tukwila, Wash. | WESCO Distribution Inc., Pittsburgh |
| Tri-State Electric Supply, Cincinnati | WinWholesale Inc., Dayton, Ohio |
| * 2008 acquisition | |
