| Business | Phone |
| Usda Ams Paca 8700 Centreville Rd 206, Manassas 20110 | (703) 330-4455 |
| Usmc Recruiting Station 14571 Potomac Mills Rd, Manassas 20109 | (703) 367-7897 |
| Us Cable 9208 Venture Ct B, Manassas 20111 | (703) 393-7123 |
| Us Interior Dept 12521 Lee Hwy, Manassas 20109 | (703) 754-1861 |