| Business | Phone |
| Colotex Electric Supply Co 11 S Main St, Longmont 80501 | (303) 772-6571 |
| Consolidated Electrical Distr 135 Gay St, Longmont 80501 | (720) 494-7654 |
| Crescent Electric Supply Co 455 Weaver Park Rd, Longmont 80501 | (303) 651-2100 |
| Qed Electric Supply 826 S Sherman St, Longmont 80501 | (303) 776-6480 |
| Telemetry Designs Inc 1850 Industrial Cir, Longmont 80501 | (303) 651-0748 |