| Business Name | Phone | Address | zip code |
| Cavalier Telephone | (571)323-4210 | 200 Fairbrook Dr Suite 202 | 20170 |
| Semantrix | (703)234-0341 | 1353 Dulles Technology Drive | 20170 |
| R & A Enterprises | (703)234-3191 | 967 Park Avenue | 20170 |
| ElectronBridge Services | (703)318-5802 | 2125 Oram Place | 20170 |
| Aesir Computing Inc | (703)406-4440 | 1151 Clinch Road | 20170 |
| Calypso Online- Inc. | (703)435-4448 | 555 Grove Street | 20170 |
| EyeCast Communications- Inc. | (703)471-5600 | 45635 Willow Pond Plaza | 20170 |
| Digicon Corporation | (703)621-2100 | 460 Herndon Parkway Suite 250 | 20170 |
| Savvis Communications | (703)667-6000 | 12851 Worldgate Drive | 20170 |
| Inphomatch | (703)796-0606 | 512 Herndon Parkway | 20170 |
| Frontier Global Center | (703)925-9255 | 380 Herndon Parkway Suite 1200 | 20170 |
| Odioworks Computer Consulting & Repair | (888)282-2846 | 1400 Kingsvale Cir Suite 201 | 20170 |
You can also check out Internet And Online Services in Herndon