| Business | Phone |
| Compliance Automation 17629 El Camino Real, Houston 77058 | (281) 486-7817 |
| Clarkson Aerospace Corp 2320 La Branch St 2104, Houston 77004 | (713) 652-5903 |
| General Dynamics Corp 10661 Haddington Dr, Houston 77043 | (713) 935-0322 |
| Barrios Technology Inc 16441 Space Center Blvd, Houston 77058 | (281) 280-1900 |
| Center-Advanced Space Studies 3600 Bay Area Blvd, Houston 77058 | (281) 486-2100 |
| Cyrospace Technologies 1020 Bay Area Blvd, Houston 77058 | (281) 480-8778 |
| Lockheed Martin Corp 1812 Space Park Dr, Houston 77058 | (281) 335-2001 |
| Trajen Aerospace 1740 Nasa Rd 1, Houston 77058 | (281) 333-3957 |
| Triton Systems Llc 17000 El Camino Real, Houston 77058 | (281) 286-3680 |
| United Space Alliance 600 Gemini St, Houston 77058 | (281) 282-2000 |
| Mts Global Inc 16422 Craighurst Dr, Houston 77059 | (281) 286-0189 |
| Triplett Aerospace Inc 1423 Farrell Rd, Houston 77073 | (281) 209-3100 |
| United Space Alliance 1045 Gemini St, Houston 77058 | (281) 280-2000 |