| Business | Phone |
| Aptek Inc 1257 Lake Plaza Dr # 100, Colorado Springs 80906 | (719) 576-8100 |
| Blue Line Engineering Co 711 S Tejon St # 202b, Colorado Springs 80903 | (719) 447-1373 |
| Synthesis Engineering Svc 4620 Edison Ave # J, Colorado Springs 80915 | (719) 380-1122 |