| Business | Phone |
| Api Electric Co 4631 Mike Colalillo Dr, Duluth 55807 | (218) 628-3323 |
| B & K Electric 6511 Nashua St, Duluth 55807 | (218) 624-4780 |
| Corbin Electric 7 W Orange St, Duluth 55811 | (218) 727-2527 |
| Dave Twining Electric Inc 4640 Schultz Rd, Duluth 55803 | (218) 721-3833 |
| Drake Electric Inc 4819 Peabody St, Duluth 55804 | (218) 525-5751 |
| Electric Constructors 2901 Helm St, Duluth 55806 | (218) 727-1302 |
| Electric Systems 4731 Grand Ave, Duluth 55807 | (218) 722-0764 |
| Electrical Workers Union 2002 London Rd, Duluth 55812 | (218) 728-6895 |
| J Wright Electric 429 W Wabasha St, Duluth 55803 | (218) 728-5965 |
| Jeanette Electric 4042 Rehbein Rd, Duluth 55803 | (218) 724-4051 |
| Lakeside Electric Co 4924 Arnold Rd, Duluth 55803 | (218) 525-7112 |
| Lenard Electric 5764 Arnold Rd, Duluth 55803 | (218) 721-4707 |
| M J Electric Inc 5739 Old Highway 61, Duluth 55810 | (218) 628-1775 |
| Meints Electric Co 4018 W Tischer Rd, Duluth 55803 | (218) 728-6014 |
| Msr Wire Works 120 Anchor St, Duluth 55810 | (218) 390-4221 |
| Nikko Electric 549 S Ugstad Rd, Duluth 55810 | (218) 624-9127 |
| Northern Electric Contractor 2914 Lavis Rd, Duluth 55804 | (218) 525-5708 |
| Nylund Electric Inc 5723 Grand Ave, Duluth 55807 | (218) 624-5706 |
| Red-D Electric Inc 5019 Ramsey St, Duluth 55807 | (218) 628-1220 |
| Simco Electric 5214 Mcquade Rd, Duluth 55804 | (218) 525-9372 |
| Simco Electric 5360 Washburn Rd, Duluth 55803 | (218) 525-0356 |
| Yax Electrical Inc 4016 Nelson Rd, Duluth 55803 | (218) 724-8450 |