| Long & Foster Real Estate, Inc. |
5,271 |
| Online Resources Corporation |
257 |
| American Systems Corporation |
207 |
| Apptis, Inc. |
171 |
| Associated Builders and Contractors, Inc |
119 |
| Intersections Inc. |
86 |
| Digital Intelligence Systems |
69 |
| Optimos |
62 |
| Engineering Consulting Service |
60 |
| Bowman Consulting Group, Inc. |
47 |
| Dedicated Micros |
45 |
| National Reconnaissance Office |
45 |
| Alliance Bankshares Corporation |
38 |
| Patton Harris Rust & Assoc |
38 |
| SYSCOM |
36 |
| V.L.S. Systems, Inc. |
34 |
| Citizant Inc |
34 |
| Integrity Applications Incorporated |
33 |
| Eastern Research Group |
32 |
| BIA Financial Network, Inc. |
31 |
| Adaequare |
29 |
| Atlantic |
28 |
| William H. Gordon Associates, Inc. |
28 |
| Community Residences, Inc. |
28 |
| American Operations Corporation |
26 |
| Omniplex World Services Corporation |
26 |
| Pohanka Automotive Group Pohanka Lexus P |
26 |
| Cwps, Inc. |
26 |
| Applied Engineering Management |
25 |
| Johnston McLamb |
25 |
| Blue Ridge Networks |
24 |
| Techlaw, Inc. |
24 |
| America's Charities |
24 |
| Meridian Knowledge Solutions, Inc. |
23 |
| Germane Systems LC |
23 |
| Zolon Tech Incorporated (US Headquarters) |
23 |
| Prosperity Mortgage |
23 |
| Communication Technologies, Inc. (COMTek) |
22 |
| Medmarc |
22 |
| Home Buyer Publications |
22 |
| Women in Cable Telecommunications |
21 |
| Door and Hardware Institute |
21 |
| Agilex Technologies, Inc. |
21 |
| Walker Jackson Mortgage Corporation |
21 |
| Associated Builders |
20 |
| Informative Design Group Inc. |
19 |
| Net 100 Ltd. |
19 |
| Arion Systems Inc |
18 |
| Government Telecommunications Inc |
18 |
| Infinity Qs Intl |
18 |
| Goldbelt Raven LLC |
18 |
| Dynex Technologies, Inc. |
18 |
| REI Systems, Inc. |
17 |
| Alex Alternative Experts, Inc. |
16 |
| Banknote Corp Of America Inc |
16 |
| Nest Technologies, Inc |
15 |
| Encore Networks |
14 |
| Avtec Systems |
14 |
| NewVectors LLC |
14 |
| Audio Video Systems Inc |
14 |
| Auto Wizard Inc |
13 |
| Capitol Property Management |
13 |
| Avitas |
12 |
| BDI |
12 |
| GTRAS INC |
12 |
| Guernsey Office Products Inc |
12 |
| William A Hazel, Inc. |
12 |
| 3Delta Systems Inc. |
11 |
| Campbell & Paris Engineers |
11 |
| American Registry for Internet Numbers (ARIN) |
11 |
| WRB Communications, Inc. |
11 |
| AOC SOLUTIONS Inc. |
11 |
| Cambridge Systems, Inc |
11 |
| Endace |
11 |
| Justice Federal Credit Union |
10 |
| Lynchval Systems Worldwide Inc |
10 |
| videoNEXT, LLC |
10 |
| Edenspace |
10 |
| Alpha Industries |
10 |
| NSGDatacom, Inc. |
10 |
| McClendon Corporation |
10 |
| Karcher Group Incorporated |
10 |
| Four Points Technology |
10 |
| moore Cadillac |
10 |
| Compass Airlines |
10 |
| Universal Power Systems Inc. |
9 |
| C2 Portfolio, Inc |
9 |
| Sequoia Management Company |
9 |
| Medicomp Systems, Inc. |
9 |
| Hoppmann Communications |
9 |
| The Teaching Company |
9 |
| Clippers Inc |
9 |
| TechLaw SOLUTIONS |
9 |
| Scott Long Construction, Inc |
9 |
| Fortisphere, Inc. |
9 |
| XRiver Technologies LLC |
9 |
| Brainbench, Inc. |
8 |
| USM Systems |
8 |
| The Protection Engineering Group, PC |
8 |
| Fairfax Imaging |
8 |
| Paragon Systems Inc |
8 |
| BIO-Medical Instruments, Inc. |
8 |
| MedSource Consultants |
8 |
| U.S. Information Technologies Corporation |
8 |
| Icsa |
8 |
| iGROUP |
8 |
| Spot Image Corporation |
7 |
| TV WorldWide |
7 |
| Xybernaut Corporation |
7 |
| Compressed Gas Association Inc |
7 |
| Sound Solutions |
7 |
| Corbett Technology Solutions, Inc |
7 |
| Veraxx Engineering Corporation |
7 |
| Acelo Solutions, Inc |
7 |
| Vector Planning & Services, Inc. |
7 |
| Centurion Research Corporation |
7 |
| Millennium Science & Engineering, Inc |
7 |
| The Cool House Plans Company |
7 |
| CVG Incorporated |
7 |
| Skyline |
7 |
| Bia Research |
7 |
| Security & Energy Technologies Corporation |
6 |
| GCP Inc |
6 |
| Capital Gateway Realtors Inc |
6 |
| Universal Debit & Credit Corp |
6 |
| KT Enterprises |
6 |
| Glodyne Technoserve Limited |
6 |
| Integic-Northrop Grumman |
6 |
| Aimpoint Inc |
6 |
| Military Benefit Association |
6 |
| South Riding Proprietary |
6 |
| Market Connections, Inc. |
6 |
| Medical Solutions, Inc. |
6 |
| Infiniti of Chantilly |
6 |
| KOL Bio Medical Instruments Inc |
6 |
| buyreman |
5 |
| Alliance Micro Inc |
5 |
| Baldino'S Lock |
5 |
| Teleproductions International |
5 |
| Capitol Vacuum Div |
5 |
| Symbionics |
5 |
| Gky Associates |
5 |
| Global Wireless Solutions Inc |
5 |
| Re/max Gateway |
5 |
| Continental Bldg Maint Co Inc |
5 |
| Observera Inc |
5 |
| Community Landscape Services |
5 |
| Innovative Technologies, Inc. |
5 |
| National Association For Search And Rescue |
5 |
| Sonic Telecom, Ltd. |
4 |
| Apex-2000 |
4 |
| Capital Software Corporation |
4 |
| Coastal Precast Systems, Inc. |
4 |
| MAC Aerospace Corporation |
4 |
| Meadows Farms |
4 |
| Database and LAN Solutions, Inc. |
4 |
| Amerisys, Inc. |
4 |
| Snap, Inc. |
4 |
| Computer Services Unlimited, Inc. |
4 |
| PC Recycler, Inc. |
4 |
| Great-Circle Technologies, Inc. |
4 |
| Potomac Fusion, Inc. |
4 |
| Sophia Wireless |
4 |
| NV Pool Service Inc |
4 |
| Ark Solutions |
4 |
| Loginsoft Inc |
4 |
| Fairfax Kitchen & Bath Inc |
4 |
| Positive Edge |
4 |
| Gateway Community Church |
4 |
| Flo Corporation |
4 |
| ABZ, Inc |
3 |
| Commission on Fire Accreditation International, Inc |
3 |
| Signature Printing Inc |
3 |
| ISR Solutions, Inc. |
3 |
| Travilah Consulting Group |
3 |
| Don'S Johns Inc |
3 |
| Aerospace Services International, Inc. |
3 |
| Argotek |
3 |
| Doclinx, Inc. |
3 |
| Copy Doctors, Inc. |
3 |
| Stitely & Karstetter |
3 |
| Fleshner & Kim, LLP |
3 |
| Netvision Resources |
3 |
| Technical Strategies Inc. |
3 |
| Element H2O |
3 |
| Prometheus Group Llc, The |
3 |
| Femme Comp Incorporated |
3 |
| Atlantic Technical Sales, Inc |
3 |
| Towerstrides Inc |
3 |
| Future Integrated Systems LLC |
3 |
| Summers Electric |
3 |
| Urban Ltd. |
3 |
| Dominion Irrigation |
3 |
| Award Crafters Inc |
3 |
| Ardent Management Consulting |
3 |
| ProjectTeam solutions |
3 |
| Tally Genicom |
3 |
| Granite & Marble Express, Inc |
3 |
| Arctech Inc |
3 |
| Master Mechanic Diagnostics & Repair |
3 |
