| Business | Phone |
| B F Hammond Electrical Design 9449 Schlagel St, Longmont 80503 | (303) 678-0446 |
| Dimensions International 105 S Sunset St # N, Longmont 80501 | (303) 651-9677 |
| Paq Engineering Po Box 6013, Longmont 80501 | (303) 772-5872 |
| Pcd Engineering Svc 184 Wetterhorn Way, Longmont 80501 | (303) 678-1108 |