| Business | Phone |
| Fairfax Identity Laboratories 3025 Hamaker Ct, Fairfax 22031 | (703) 698-3919 |
| Geomatric Technology Corp 10875 Main St, Fairfax 22030 | (703) 352-0133 |
| Civil Environmental 4400 University Dr, Fairfax 22030 | (703) 993-1675 |
| Environmental Science & Policy 4400 University Dr, Fairfax 22030 | (703) 993-1616 |