| Business Name | Phone | Address | zip code |
| Netplexus | (703)359-4403 | 10201 Lee Highway Suite 520 | 22030 |
| Netsec | (703)561-0420 | 13505 Dulles Technology Drive | 22030 |
| W R System Inc | (212)268-1999 | 10680 Main Street | 22030 |
| The Applications Programming Specialists | (703)201-5994 | P.O. Box 867 | 22030 |
| Tech Medics Inc | (703)218-2858 | 10946 Byrd Drive | 22030 |
| Practical Solutions Corporation | (703)218-4441 | 3975 University Drive Suite 340 | 22030 |
| Prescient Infotech Inc | (703)218-6233 | 11130 Main Street Suite 100 E1 | 22030 |
| Sagent Technology | (703)267-2706 | 6704 Pender Drive | 22030 |
| Trident Systems Inc | (703)273-1012 | 10201 Lee Hwy | 22030 |
| Eagle Software | (703)273-4570 | 3873 Plaza Drive | 22030 |
| Eagle Software Group | (703)273-5770 | 10400 Eaton Place | 22030 |
| Netest | (703)273-8202 | 10402 Fairfax Village Drive | 22030 |
| Steel River Systems Inc | (703)277-7086 | 10650 Main Street Suite 102 | 22030 |
| Multimax Solutions | (703)277-7480 | 10680 Main Street | 22030 |
| Patriot Net Inc | (703)277-7737 | 4031 University Dr | 22030 |
| Dynamight Technologies Inc | (703)278-8722 | 4101 Chain Bridge Road Suite 104 | 22030 |
| Kasmark Group | (703)352-0023 | 3519 Jermantown Rd | 22030 |
| Themis Computer | (703)352-8132 | 3554 Chain Bridge Rd | 22030 |
| Sensei Enterprises Inc | (703)359-0700 | 3975 University Drive | 22030 |
| Cetech Inc | (703)359-2680 | 4103 Chain Bridge Rd Suite 204 | 22030 |
| Macro Systems- LLC | (703)359-9211 | 3867 Plaza Drive | 22030 |
| Ignited Solutions | (703)383-0111 | 2020 14th St N | 22030 |
| Advance Digital Systems | (703)383-0808 | 10560 Main St | 22030 |
| Special Systems Inc | (703)383-3900 | 5033 Huntwood Manor Drive | 22030 |
| Objects Worldwide Inc | (703)385-5245 | 3900 University Drive Suite 100 | 22030 |
| Data Directions Inc | (703)385-8115 | 4716 Leehigh Ct | 22030 |
| Vista Innovation | (703)385-8362 | 10382 Democracy Lane # A | 22030 |
| Intercom Network | (703)449-0101 | 4210 Fairfax Corner Avenue | 22030 |
| Integrated Data Processing Inc | (703)591-7118 | 3905 Railroad Ave | 22030 |
| Terimeter Wireless Networks Inc | (703)631-0200 | 6877 Colonel Taylor Lane | 22030 |
| Project Design Systems | (703)691-2118 | 10341 Democracy Lane # B | 22030 |
| US ATM Services LLC | (703)691-2220 | 10410 Main St | 22030 |
| Liquidapps | (703)691-4290 | 10560 Main Street | 22030 |
| Innerbase Technologies- Inc. | (703)691-4997 | 11320 Random Hills Road Suite 540 | 22030 |
| Edge Technologies Inc | (703)691-7900 | 3701 Pender Drive Suite 150 | 22030 |
| Sonex Enterprises Inc | (703)691-8122 | 9990 Lee Highway Suite 500 | 22030 |
| Figel Technologies INTL | (703)691-8585 | 3574 University Drive | 22030 |
| TSS Inc. | (703)698-0347 | 2928-K Prosperity Avenue | 22030 |
You can also check out Computer Software And Services in Fairfax