| Business | Phone |
| A Z Technology Co 7047 Old Madison Pike Nw, Huntsville 35806 | (256) 837-9877 |
| Aegis Research Corp 631 Discovery Dr Nw, Huntsville 35806 | (256) 922-0802 |
| Computrol Corp 303 Williams Ave Sw, Huntsville 35801 | (256) 536-6681 |
| Georgia Tech Research Inst 1525 Perimeter Pkwy # 415, Huntsville 35806 | (256) 890-9125 |
| J B Management Engineering 555 Sparkman Dr Nw # 1024, Huntsville 35816 | (256) 890-3420 |
| Northrop Grumman Corp 7650 Redstone Arsenal, Huntsville 35898 | (256) 882-8700 |
| Saic 4901 Corporate Dr Nw # D, Huntsville 35805 | (256) 722-0190 |