| Business | Phone |
| H S Electric 4 Homestead Cres, Chatham N7M 5B1 | (519) 354-6329 |
| Honey Electric Ltd 400 Park Ave W, Chatham N7M 1W9 | (519) 351-0484 |
| Jim Wilcox Electric Ltd 39 Parkwood Dr, Chatham N7M 2B1 | (519) 352-6632 |
| Maple City Electric 23184 Walker Rd, Chatham N7L 5R3 | (519) 351-7312 |
| Mast Electric Ltd 9916 Darrell Line, Chatham | (519) 352-1831 |
| Rob's Electric 869 Park Ave W, Chatham N7M 5J6 | (519) 351-2265 |
| Ron Field & Son Electric Ltd 90 Borrowman Dr, Chatham N7M 5J5 | (519) 354-9225 |
| Rossini Electric 2 Indian Creek Rd W, Chatham N7M 2E1 | (519) 352-9180 |
| Wiersma Electric 65 Lynwood Dr Rr 4, Chatham N7M 5J4 | (519) 354-8643 |
| Emery Electrical & Electronic 15 Mallard Pl, Chatham N7L 4A5 | (519) 352-6617 |
| Wright's Electric Ltd 650 Grand Ave E, Chatham N7L 1X6 | (519) 352-8795 |
| Zimmer Controls 9602 Longwoods Rd, Chatham N7M 5J1 | (519) 351-5114 |
| Dale Electric 512 Lacroix St, Chatham N7M 2X2 | (519) 354-7270 |