| Business | Phone |
| B D Systems 600 Boulevard South Sw # 304, Huntsville 35802 | (256) 882-2650 |
| Battelle Huntsville Operations 7501 Memorial Pkwy Sw, Huntsville 35802 | (256) 881-0262 |
| Dynetics 1051 Enterprise Way Nw, Huntsville 35806 | (256) 964-4400 |
| Dynetics 990 Explorer Blvd Nw, Huntsville 35806 | (256) 964-4800 |
| Dynetics Inc 1000 Explorer Blvd Nw, Huntsville 35806 | (256) 922-9230 |
| Lockheed Martin Space Systems 4800 Bradford Dr Nw, Huntsville 35805 | (256) 722-4000 |