| 541330 | Engineering Services General |
| 541511 | Custom Computer Programming Services |
| 541512 | Computer Systems Design Services |
| 541513 | Computer Facilities Manageent Services |
| 541519 | Other Computer Related Services |
| 541611 | Admin Management & General Management Consulting Services |
| 541614 | Process, Phys. Dist., & Log. Consulting Services |
| 541690 | Other Scientific and Tech. Consultng Services |
| 541712 | R&D in Physical Engineering and Life Sciences |
| 561210 | Facilities Support Services |
| 561612 | Security Guards and Patrol Services |
| 561621 | Security Systems Services (except Locksmith) |
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Corporate: |
Huntsville: |
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