| Business | Phone |
| Prince William Adult Detention 9320 Lee Ave, Manassas 20110 | (703) 792-6420 |
| Prince William Club 8521 Phoenix Dr, Manassas 20110 | (703) 361-5256 |
| Prince William Cnty Circuit Ct 9311 Lee Ave 314, Manassas 20110 | (703) 792-6029 |
| Prince William Cnty Comm Svc 8033 Ashton Ave, Manassas 20109 | (703) 792-7710 |
| Prince William Cnty Detention 14873 Dumfries Rd, Manassas 20112 | (703) 791-3181 |
| Prince William Cnty Fire Mrshl 9250 Lee Ave, Manassas 20110 | (703) 792-6360 |
| Prince William Cnty Landfill 14811 Dumfries Rd, Manassas 20112 | (703) 792-5750 |
| Prince William Cnty Soil Water Manassas 20110 | (703) 361-1710 |
| Prince William Cnty Election 9252 Lee Ave, Manassas 20110 | (703) 792-6470 |
| Prince William Co-Op Ext Svc 8033 Ashton Ave, Manassas 20109 | (703) 792-6289 |
| Prince William Community Svc 8033 Ashton Ave, Manassas 20109 | (703) 792-7700 |
| Prince William County Animal 14807 Dumfries Rd, Manassas 20112 | (703) 792-6465 |
| Prince William County Cable Tv Manassas 20110 | (703) 792-7183 |
| Prince William County Fair 10624 Dumfries Rd, Manassas 20112 | (703) 368-0173 |
| Prince William County Mental 7969 Ashton Ave, Manassas 20109 | (703) 792-7800 |
| Prince William County Pub Work 14877 Dumfries Rd # 101, Manassas 20112 | (703) 791-7866 |
| Prince William Judicial Ctr 9311 Lee Ave, Manassas 20110 | (703) 792-7000 |
| Prince William Mental Rtrdtn 7969 Ashton Ave, Manassas 20109 | (703) 792-7750 |
| Prince William Sudley North 7987 Ashton Ave # 200, Manassas 20109 | (703) 792-6000 |
| Judicial Center 9311 Lee Ave, Manassas 20110 | (703) 792-6000 |