The Virginia Chamber of Commerce annually ranks the 50 fastest growing companies headquartered in the Commonwealth of Virginia. Rankings are based on sales and revenue over a four-year period. In 2011, 23 companies on the list were based in Fairfax County.
| RANK | COMPANY | LOCATION |
|---|---|---|
| 37 | Ace Info Solutions, Inc. | Reston |
| 17 | ActioNet, Inc. | Fairfax |
| 45 | ConceptSolutions, LLC | Reston |
| 50 | Customer Value Partners | Fairfax |
| 42 | Data Networks Corporation | Reston |
| 20 | Evolver, Inc. | Reston |
| 9 | Harkcon, Inc. | McLean |
| 12 | HCI integrated solutions | Fairfax |
| 7 | Invizion, Inc. | Tysons Corner |
| 6 | Knight Point Systems | Reston |
| 13 | Kore Federal Inc. | Tysons Corner |
| 34 | MetroStar Systems | Reston |
| 1 | NetWitness Corporation | Reston |
| 2 | Octo Consulting Group | Tysons Corner |
| 39 | Right Star Systems | Tysons Corner |
| 43 | Search Technologies | Herndon |
| 4 | Suntiva | Tysons Corner |
| 5 | TAPE, LLC | Kingstowne |
| 32 | The Tauri Group | Alexandria |
| 49 | Trusted Mission Solutions, Inc. | Tysons Corner |
| 27 | Veris Group, LLC | Tysons Corner |
| 25 | VMD Systems Integrators, Inc. | Tysons Corner |
| 36 | XL, Inc. | Tysons Corner |