| Business | Phone |
| Bull Run Electric Construction 8992 Mike Garcia Dr, Manassas 20109 | (703) 257-6460 |
| Spear Electric Inc 9107 Industry Dr N, Manassas 20111 | (703) 830-4381 |
| S & R Electric Co 9205 Enterprise Ct, Manassas 20111 | (703) 335-2232 |
| R J Chivers Group Inc 7309 Gateway Ct, Manassas 20109 | (703) 361-1122 |
| Eec Group Inc 8838 Rixlew Ln, Manassas 20109 | (703) 392-1210 |
| Emf Associates 8754 Virginia Meadows Dr, Manassas 20109 | (703) 530-0811 |
| Express Electrical Systems 7822 Howard St, Manassas 20111 | (703) 366-1515 |
| Paramount Mechanical 9600 Godwin Dr, Manassas 20110 | (703) 330-5459 |