| RANK | COMPANY NAME | 3-YEAR % GROWTH | REVENUE (millions) | INDUSTRY | EMPLOYEES | CITY | STATE |
|---|---|---|---|---|---|---|---|
| 2929 | American Swiss Products | 95% | $4.4 million | ■ Manufacturing | 9 | Pittsford | NY |
| 4501 | American Technologies | 31% | $88 million | ■ Environmental Services | 600 | Orange | CA |
| 4518 | American Tire Distributors | 30% | $2 billion | ■ Consumer Products & Services | 2150 | Huntersville | NC |
| 440 | American Unit | 585% | $32.8 million | ■ IT Services | 300 | Frisco | TX |
| 1849 | Americare Home Therapy | 172% | $6.4 million | ■ Health | 168 | Jacksonville | FL |
| 2863 | AmericaRx.com | 99% | $13.7 million | ■ Retail | 20 | East Elmhurst | NY |
| 3823 | Americollect | 58% | $4.4 million | ■ Business Products & Services | 62 | Manitowoc | WI |
| 2308 | Ameridian Specialty Services | 133% | $8.1 million | ■ Construction | 60 | Cincinnati | OH |
| 962 | AmeriQuest Transportation Services | 318% | $524 million | ■ Logistics & Transportation | 80 | Cherry Hill | NJ |
| 4029 | Ameritac | 50% | $18.9 million | ■ Government Services | 200 | Concord | CA |
| 4713 | Ameritel Communications | 20% | $14.7 million | ■ Business Products & Services | 67 | Gaithersburg | MD |
| 2542 | Amicus Search Group | 117% | $3.5 million | ■ Human Resources | 9 | Austin | TX |
| 2717 | Amigo Mobility International | 107% | $13.4 million | ■ Manufacturing | 80 | Bridgeport | MI |
| 4344 | Amity Insurance Agency | 38% | $4.1 million | ■ Insurance | 36 | Quincy | MA |
| 2299 | Amity Technology | 134% | $49 million | ■ Manufacturing | 75 | Fargo | ND |
| 4443 | Amnet Technology Solutions | 33% | $3.6 million | ■ IT Services | 20 | Stamford | CT |
| 3009 | Amotec | 91% | $3.5 million | ■ Human Resources | 54 | Cleveland | OH |
| 2491 | Amtech | 121% | $7.5 million | ■ Software | 50 | Fort Washington | PA |
| 4427 | Amthor International | 34% | $14.5 million | ■ Manufacturing | 75 | Gretna | VA |
| 1954 | Amyx | 163% | $11.1 million | ■ Government Services | 59 | Reston | VA |
| 615 | Anadarko Industries | 444% | $32.3 million | ■ Government Services | 154 | Houston | TX |
| 793 | Analytic Focus | 369% | $2.1 million | ■ Business Products & Services | 20 | San Antonio | TX |
| 1939 | Anatomy Supply Partners | 164% | $6.3 million | ■ Business Products & Services | 9 | Atlanta | GA |
| 1299 | Anchor Innovation | 243% | $3.4 million | ■ Government Services | 7 | Virginia Beach | VA |
| 1620 | Andera | 198% | $4.1 million | ■ Software | 57 | Providence | RI |
| 3006 | Andrews & Company | 92% | $3.1 million | ■ Business Products & Services | 145 | Newton | NJ |
| 1860 | Anexinet Technology | 171% | $47.8 million | ■ IT Services | 150 | Blue Bell | PA |
| 330 | Angarai International | 735% | $2.9 million | ■ Business Products & Services | 17 | Greenbelt | MD |
| 165 | Angel Staffing | 1,138% | $23 million | ■ Health | 695 | San Antonio | TX |
| 2557 | AngelVision | 117% | $4.4 million | ■ Advertising & Marketing | 73 | Portland | OR |
| 1100 | Angie's List | 284% | $34.2 million | ■ Consumer Products & Services | 431 | Indianapolis | IN |
| 3103 | Angler Environmental | 87% | $10.5 million | ■ Environmental Services | 75 | Manassas | VA |
| 402 | Animax Entertainment | 639% | $5.7 million | ■ Media | 55 | Van Nuys | CA |
| 3594 | Anisa International | 66% | $21.6 million | ■ Manufacturing | 20 | Atlanta | GA |
| 3159 | Annapolis Micro Systems | 84% | $21.8 million | ■ Computer Hardware | 56 | Annapolis | MD |
| 4480 | Annese & Associates | 32% | $48.8 million | ■ Telecommunications | 75 | Herkimer | NY |
| 3903 | Annie's | 55% | $87.7 million | ■ Food & Beverage | 65 | Berkeley | CA |
| 1629 | Anodyne Health | 197% | $10.1 million | ■ Software | 135 | Alpharetta | GA |
| 2954 | ANSi Consulting | 94% | $1.2 million | ■ IT Services | 12 | Cherry Hill | NJ |
| 1870 | Answer Center America | 171% | $3.8 million | ■ Business Products & Services | 120 | Chicago | IL |
| 365 | AnswerLab | 687% | $2.5 million | ■ Business Products & Services | 10 | San Francisco | CA |
| 746 | Antennas Direct | 389% | $3.2 million | ■ Consumer Products & Services | 11 | Ellisville | MO |
| 1530 | Anteo Group | 208% | $22.6 million | ■ IT Services | 171 | Atlanta | GA |
| 2263 | Anthem Media Group | 138% | $9.6 million | ■ Advertising & Marketing | 169 | Overland Park | KS |
| 3458 | Anu Resources Unlimited | 71% | $2.9 million | ■ IT Services | 6 | Dublin | OH |
| 1809 | Anue Systems | 176% | $10.6 million | ■ Computer Hardware | 45 | Austin | TX |
| 285 | Anytime Fitness | 816% | $26.7 million | ■ Health | 70 | Hastings | MN |
| 2947 | AnytimeCostumes.com | 95% | $5.2 million | ■ Retail | 12 | Ronkonkoma | NY |
| 999 | AOC Solutions | 306% | $23.4 million | ■ IT Services | 100 | Chantilly | VA |
| 2304 | AOS | 134% | $128.8 million | ■ IT Services | 205 | Overland Park | KS |
| 1466 | APC Postal Logistics | 218% | $27.2 million | ■ Logistics & Transportation | 88 | East Rutherford | NJ |
| 3935 | APCO Worldwide | 53% | $112.4 million | ■ Advertising & Marketing | 569 | Washington | DC |
| 3051 | Apex Analytix | 89% | $37.2 million | ■ Financial Services | 220 | Greensboro | NC |
| 2353 | Apex Contracting & Restoration | 130% | $6.3 million | ■ Construction | 55 | San Diego | CA |
| 2352 | Apex Instruments | 130% | $8.1 million | ■ Manufacturing | 31 | Fuquay Varina | NC |
| 3744 | Apex Print Technologies | 60% | $20.6 million | ■ Business Products & Services | 45 | St. Paul | MN |
| 2493 | Apex Systems | 121% | $402.2 million | ■ IT Services | 903 | Glen Allen | VA |
| 2146 | Apex Technology Group | 148% | $14.6 million | ■ IT Services | 142 | Edison | NJ |
| 1070 | APG | 290% | $34.9 million | ■ IT Services | 115 | Reston | VA |
| 1571 | APG Security | 204% | $17.6 million | ■ Security | 800 | South Amboy | NJ |
| 255 | APN Consulting | 873% | $8.3 million | ■ IT Services | 20 | Princeton | NJ |
| 832 | Apogee Search | 355% | $5.2 million | ■ Advertising & Marketing | 53 | Austin | TX |
| 2286 | Apparatus | 136% | $6.7 million | ■ IT Services | 55 | Indianapolis | IN |
| 2674 | Appia Communications | 110% | $7.6 million | ■ Telecommunications | 35 | Traverse City | MI |
| 4520 | Apple Rock | 30% | $12.5 million | ■ Advertising & Marketing | 38 | Greensboro | NC |
| 4838 | Apple-Metro | 10% | $119.2 million | ■ Food & Beverage | 2800 | Harrison | NY |
| 1382 | Appletree Answering Service | 231% | $15.1 million | ■ Business Products & Services | 350 | Wilmington | DE |
| 1213 | Application Development Resources | 262% | $12.3 million | ■ IT Services | 75 | Alpharetta | GA |
| 4058 | Applied Control Engineering | 49% | $15.6 million | ■ Engineering | 105 | Newark | DE |
| 4327 | Applied Global Technologies | 38% | $32.4 million | ■ Telecommunications | 101 | Rockledge | FL |
| 1447 | Applied Innovation Group | 221% | $2.1 million | ■ Engineering | 14 | San Jose | CA |
| 1440 | Applied Scientific Instrumentation | 222% | $8.6 million | ■ Engineering | 25 | Eugene | OR |
| 3873 | AppliedTrust | 56% | $2.9 million | ■ IT Services | 21 | Boulder | CO |
| 741 | AppRiver | 390% | $18.7 million | ■ Security | 100 | Gulf Breeze | FL |
| 819 | Apps Associates | 360% | $8.7 million | ■ IT Services | 210 | Acton | MA |
| 2262 | APS Lighting & Safety Products | 138% | $6.1 million | ■ Construction | 15 | San Diego | CA |
| 4653 | APT Research | 23% | $12.6 million | ■ Engineering | 95 | Huntsville | AL |
| 520 | Aptela | 515% | $8.2 million | ■ Telecommunications | 54 | Herndon | VA |
| 539 | AQIWO | 500% | $4 million | ■ Government Services | 30 | Arlington | VA |
| 4486 | Aqua | 32% | $7.1 million | ■ Construction | 42 | Easton | MD |
| 48 | Aqua Superstore | 2,695% | $7.5 million | ■ Retail | 35 | Port Charlotte | FL |
| 4300 | Arbor-Nomics Turf | 39% | $4.3 million | ■ Consumer Products & Services | 52 | Norcross | GA |
| 3271 | Arborwell | 79% | $11.8 million | ■ Environmental Services | 58 | Hayward | CA |
| 865 | Arc Aspicio | 348% | $1.8 million | ■ Government Services | 13 | Arlington | VA |
| 4742 | ARC Paper | 18% | $14.1 million | ■ Consumer Products & Services | 42 | Las Vegas | NV |
| 1560 | ArcaMax Publishing | 205% | $4.9 million | ■ Media | 20 | Newport News | VA |
| 1200 | ArcaTech Systems | 266% | $24.2 million | ■ Financial Services | 56 | Mebane | NC |
| 1489 | Archer Technologies | 216% | $32.3 million | ■ Software | 125 | Overland Park | KS |
| 4508 | Architectural Flooring Resource | 31% | $16.8 million | ■ Construction | 20 | New York | NY |
| 3749 | Archway | 60% | $106.1 million | ■ Logistics & Transportation | 750 | Rogers | MN |
| 2261 | Arcus | 138% | $22.1 million | ■ Human Resources | 58 | Hummelstown | PA |
| 2062 | Area51-ESG | 154% | $20.9 million | ■ Computer Hardware | 49 | Irvine | CA |
| 3513 | Argent Capital Management | 69% | $5.3 million | ■ Financial Services | 22 | Clayton | MO |
| 936 | ARGI Financial Group | 326% | $3.3 million | ■ Financial Services | 30 | Louisville | KY |
| 2243 | Argotek | 140% | $16.7 million | ■ Government Services | 51 | Chantilly | VA |
| 476 | Aribex | 550% | $5.4 million | ■ Manufacturing | 28 | Orem | UT |
| 1250 | Arizon Companies | 254% | $44.2 million | ■ Manufacturing | 457 | St. Louis | MO |
| 2142 | Arizona Blinds | 148% | $3 million | ■ Consumer Products & Services | 10 | Peoria | AZ |
| 33 | ARK Solutions | 3,537% | $8.6 million | ■ IT Services | 19 | Chantilly | VA |
| 1024 | Arkel International | 300% | $73.2 million | ■ Construction | 300 | Baton Rouge | LA |
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