| Business | Phone |
| Ge Supply 2 E Mankato St, Duluth 55803 | (218) 724-5440 |
| Graybar Electric Co 2601 W Superior St, Duluth 55806 | (218) 722-6685 |
| United Electric Co 4304 W 1st St, Duluth 55807 | (218) 628-1024 |
| Viking Electric Supply 4531 W 1st St, Duluth 55807 | (218) 624-2200 |