| Business | Phone |
| A & A Publishers Inc 43608 Habitat Cir, Leesburg 20176 | (703) 707-0169 |
| Avionics Communications Inc 649 Burnside Ter Se, Leesburg 20175 | (703) 777-9535 |
| Congressional Publishing Inc 10 Royal St Se, Leesburg 20175 | (703) 777-6737 |
| Open Source Publishing Inc 100 Dry Mill Rd Sw, Leesburg 20175 | (703) 779-1880 |