| Business | Phone |
| Advanced Aviation Svc 3760 Wheeling St # 11, Denver 80239 | (303) 371-7579 |
| Bombardier Aviation Svc 7830 Harry B Combs Pkwy, Denver 80249 | (303) 342-5400 |
| Heliarc Welding Svc 3965 Newport St, Denver 80207 | (303) 355-2080 |
| United Aero Dynamics Corp 4665 Paris St # 150, Denver 80239 | (303) 375-1111 |