| Business | Phone |
| Ashton Electric 47 Alma St, St Thomas N5P 3A9 | (519) 633-3604 |
| Joel Hayes Electric 267 Ross St, St Thomas N5R 3Y8 | (519) 633-7768 |
| Koolen Electric Rr 5 Stn Main, St Thomas N5P 3S9 | (519) 631-0590 |
| Lawrence Electric 7b Mary St E, St Thomas N5R 2V7 | (519) 633-7068 |
| Steve's Electric 3 Karen St, St Thomas N5R 1A4 | (519) 631-1059 |
| Ecm Controls Inc 81 Harper Rd, St Thomas N5P 4E5 | (519) 633-7443 |
| Elgin Electric Ltd 24 Spackman Blvd, St Thomas N5P 4A3 | (519) 633-7902 |