| Business | Phone |
| John Wilson Electric Ltd 667 Beaverhall Pl, Thunder Bay P7E 3N1 | (807) 473-5500 |
| Kilred Winding Industries Ltd 408 Main St, Thunder Bay P7B 2S3 | (807) 344-0745 |
| Mahon Electric 340 Waterloo St N, Thunder Bay P7C 5Y3 | (807) 623-8471 |
| Merse Motor Electric Ltd 194 Court St S, Thunder Bay P7B 2X8 | (807) 345-2400 |
| National Electric Carbon 858 Brodie St N, Thunder Bay P7C 3V2 | (807) 622-7733 |