| Business | Phone |
| American Helicopters 10503 Redoubt Rd, Manassas 20110 | (703) 368-9599 |
| Aviation Adventures 10537 Wakeman Dr, Manassas 20110 | (703) 530-7737 |
| Aviation Institute Of Mtnce 9821 Godwin Dr, Manassas 20110 | (703) 257-5515 |
| Dulles Aviation Inc 10501 Observation Rd, Manassas 20110 | (703) 361-2171 |
| Eaa Chapter 186 10629 Observation Rd, Manassas 20110 | (703) 365-8764 |
| Manassas Aviation Ctr Inc 10600 Observation Rd, Manassas 20110 | (703) 361-0575 |