| Business | Phone |
| Alvarado Manufacturing Co Inc Alexandria 22304 | (703) 370-0490 |
| Nutone Products 2655 Duke St, Alexandria 22314 | (703) 751-4440 |
| Kemco Alarm Co Inc 8033d Randall Place, Alexandria 22306 | (703) 765-2528 |
| Empower Wolfe Construction Alexandria 22302 | (703) 989-1001 |
| Police Patrol Security Systems 4600 Duke St, Alexandria 22304 | (703) 370-6490 |