| Business | Phone |
| Ainsworth Electric Inc 3763 Lapeer Rd E, Port Huron 48060 | (810) 984-5768 |
| Gillette Electric Construction 2241 Wadhams, Port Huron 48060 | (810) 984-3050 |
| Northern Electrical Testing 1024 Court St, Port Huron 48060 | (810) 987-7710 |
| Turner Electric 321 Court St, Port Huron 48060 | (810) 982-4913 |
| Sopha Electric Inc 2420 White St, Port Huron 48060 | (810) 985-6361 |
| Stephenson Electric Co 2929 Lapeer Rd 3, Port Huron 48060 | (810) 987-5777 |