| RANK | COMPANY NAME | 3-YEAR % GROWTH | REVENUE (millions) | INDUSTRY | EMPLOYEES | CITY | STATE |
|---|---|---|---|---|---|---|---|
| 346 | AK Environmental | 844% | $17.5 million | ■ Energy | 50 | West Trenton | NJ |
| 4615 | AKA Media | 15% | $2.4 million | ■ Media | 9 | Chicago | IL |
| 3119 | Akasha | 65% | $12.7 million | ■ Consumer Products & Services | 17 | Ann Arbor | MI |
| 4850 | Akerman Senterfitt | 8% | $242 million | ■ Business Products & Services | 472 | Orlando | FL |
| 1571 | Akraya | 183% | $32.2 million | ■ IT Services | 170 | Sunnyvale | CA |
| 511 | AKT Enterprises | 592% | $4.9 million | ■ Advertising & Marketing | 45 | Winter Park | FL |
| 4074 | Alamo1 | 31% | $22.6 million | ■ Environmental Services | 220 | San Antonio | TX |
| 1542 | ALARM TEAM | 188% | $21.9 million | ■ Security | 113 | GARNER | NC |
| 2159 | ALaS Consulting | 120% | $17.7 million | ■ Financial Services | 78 | New York | NY |
| 598 | Alatec | 505% | $12 million | ■ Government Services | 81 | Huntsville | AL |
| 4349 | Alcorn McBride | 23% | $4.9 million | ■ Engineering | 18 | Orlando | FL |
| 1247 | Alex and Ani | 238% | $2.2 million | ■ Retail | 20 | Cranston | RI |
| 4744 | Alexa's Angels | 11% | $2.1 million | ■ Retail | 14 | Windsor | CO |
| 1685 | Algonquin Advisors | 167% | $2 million | ■ Financial Services | 6 | Greenwich | CT |
| 904 | Ali International | 333% | $4.5 million | ■ Media | 11 | Los Angeles | CA |
| 3729 | Alice Ink | 41% | $19 million | ■ Retail | 15 | Delray Beach | FL |
| 2942 | Alinean | 73% | $5.5 million | ■ Advertising & Marketing | 35 | Orlanco | FL |
| 4595 | All Access Staging & Productions | 16% | $8.1 million | ■ Business Products & Services | 71 | Torance | CA |
| 3740 | All Action Architectural Metal & Glass | 41% | $7 million | ■ Construction | 24 | South Plainfield | NJ |
| 4752 | All American Rentals | 11% | $6.2 million | ■ Construction | 42 | Newark | CA |
| 1752 | All American Swim Supply | 157% | $2.2 million | ■ Retail | 15 | Florence | AL |
| 4367 | All Copy Products | 22% | $26.8 million | ■ Business Products & Services | 162 | Denver | CO |
| 3909 | All Covered | 36% | $45.9 million | ■ IT Services | 298 | Redwood City | CA |
| 4076 | All Med Medical Supply | 31% | $13.9 million | ■ Health | 28 | Westland | MI |
| 4506 | All Phase Security | 18% | $7.5 million | ■ Security | 285 | West Sacramento | CA |
| 1545 | All Safe Industries | 187% | $6.8 million | ■ Security | 10 | Louisville | KY |
| 4457 | All Sensors | 19% | $7.4 million | ■ Manufacturing | 26 | MORGAN HILL | CA |
| 1763 | All Star Directories | 156% | $68.3 million | ■ Advertising & Marketing | 85 | Seattle | WA |
| 441 | All Web Leads | 677% | $48.8 million | ■ Insurance | 36 | Austin | TX |
| 3779 | ALL4 | 40% | $3.5 million | ■ Environmental Services | 25 | Kimberton | PA |
| 1954 | Allana Buick & Bers | 138% | $17 million | ■ Construction | 102 | Palo Alto | CA |
| 2835 | Allconnect | 78% | $59.7 million | ■ Consumer Products & Services | 511 | Atlanta | GA |
| 4009 | allConnex | 32% | $2.2 million | ■ Telecommunications | 8 | Sharon | MA |
| 617 | Allegiance | 486% | $5.3 million | ■ Software | 55 | South Jordan | UT |
| 3979 | Allegra Brands | 33% | $3.2 million | ■ Health | 21 | Chicago | IL |
| 3129 | Allen Corporation of America | 64% | $23.6 million | ■ Government Services | 250 | Fairfax | VA |
| 4947 | Allen Matkins Leck Gamble Mallory & Natsis | 3% | $148 million | ■ Business Products & Services | 215 | Los Angeles | CA |
| 4272 | Alliance Benefit Group of Illinois | 25% | $6.4 million | ■ Financial Services | 69 | Peoria | IL |
| 1162 | Alliance Solutions Group | 256% | $2.1 million | ■ Government Services | 20 | Newport News | VA |
| 2362 | Alliance Technologies | 106% | $16.7 million | ■ IT Services | 100 | Des Moines | IA |
| 147 | Alliant Healthcare Products | 1,851% | $5.3 million | ■ Health | 35 | Richland | MI |
| 631 | Alliant National Title Insurance | 482% | $41.8 million | ■ Insurance | 15 | Longmont | CO |
| 3592 | Allied 100 | 47% | $19 million | ■ Health | 18 | Woodruff | WI |
| 1157 | Allied Environmental Services | 257% | $22.7 million | ■ Construction | 250 | Sherman Oaks | CA |
| 3346 | Allison & Partners | 56% | $14.7 million | ■ Advertising & Marketing | 80 | San Francisco | CA |
| 1425 | Allmenus.com | 202% | $8.3 million | ■ Food & Beverage | 30 | New York | NY |
| 4150 | AllTek Holdings | 29% | $11 million | ■ Human Resources | 393 | Pittsburgh | PA |
| 3870 | Alltrust Insurance | 37% | $4.1 million | ■ Insurance | 27 | Palm Harbor | FL |
| 1328 | Alpha Card Services | 221% | $10.5 million | ■ Financial Services | 42 | Huntingdon Valley | PA |
| 2286 | Alpha Imaging | 111% | $46.3 million | ■ Health | 45 | Willoughby | OH |
| 3492 | Alpha Source | 51% | $12.9 million | ■ Health | 29 | Milwaukee | WI |
| 109 | AlphaMetrix | 2,261% | $41.2 million | ■ Financial Services | 70 | Chicago | IL |
| 2761 | Alpine Access | 82% | $47.4 million | ■ Business Products & Services | 2620 | Denver | CO |
| 1712 | Alpine Waste & Recycling | 163% | $16.3 million | ■ Environmental Services | 165 | Commerce City | CO |
| 3215 | Alps Controls | 61% | $25.4 million | ■ Business Products & Services | 18 | Pittsburgh | PA |
| 397 | Alsbridge | 740% | $16.1 million | ■ IT Services | 90 | Dallas | TX |
| 4465 | Alston & Bird | 19% | $551 million | ■ Business Products & Services | 820 | Atlanta | GA |
| 4290 | altE | 24% | $9.3 million | ■ Energy | 21 | Hudson | MA |
| 3509 | Altec Solutions Group | 50% | $2 million | ■ Computer Hardware | 18 | Springfield | MO |
| 417 | Alteris Renewables | 710% | $56.4 million | ■ Energy | 124 | Wilton | CT |
| 2662 | Alternate Solutions Homecare | 87% | $29.5 million | ■ Health | 366 | Kettering | OH |
| 3084 | Altour | 66% | $808.6 million | ■ Travel & Hospitality | 928 | New York | NY |
| 1158 | Altum | 257% | $13.2 million | ■ Software | 71 | Reston | VA |
| 2307 | Always Best Care Senior Services | 109% | $6.5 million | ■ Health | 95 | Roseville | CA |
| 3312 | Amadeus Consulting | 57% | $4.2 million | ■ IT Services | 50 | Boulder | CO |
| 1557 | AmazingCharts.com | 185% | $2.8 million | ■ Software | 19 | North Kingstown | RI |
| 870 | Ambient Bamboo Floors | 346% | $2.8 million | ■ Construction | 12 | Jessup | MD |
| 1 | Ambit Energy | 20,369% | $325 million | ■ Energy | 171 | Dallas | TX |
| 4911 | AMC Entertainment | 5% | $2.4 billion | ■ Media | 1200 | Kansas City | MO |
| 895 | Amcom Software | 336% | $46.1 million | ■ Telecommunications | 240 | Eden Prairie | MN |
| 3275 | Amelia's | 59% | $39.8 million | ■ Food & Beverage | 312 | New Holland | PA |
| 706 | Amensys | 432% | $3.6 million | ■ IT Services | 45 | Plano | TX |
| 3398 | Ameresco | 54% | $428.5 million | ■ Energy | 639 | Framingham | MA |
| 1965 | Ameri-Kleen | 137% | $11 million | ■ Business Products & Services | 485 | Watsonville | CA |
| 2868 | America's Window | 76% | $10.9 million | ■ Consumer Products & Services | 50 | Borden | IN |
| 4263 | American Bancard | 25% | $8.5 million | ■ Financial Services | 15 | Boca Raton | FL |
| 3549 | American Business Solutions | 48% | $6.1 million | ■ IT Services | 100 | Lewis Center | OH |
| 4971 | American Communications | 2% | $26 million | ■ Telecommunications | 202 | Irving | TX |
| 1102 | American Ear Hearing & Audiology | 272% | $5.3 million | ■ Health | 26 | Newark | OH |
| 4337 | American Exteriors | 23% | $26.8 million | ■ Construction | 248 | Littleton | CO |
| 3685 | American Fire Restoration | 43% | $5.4 million | ■ Environmental Services | 10 | Brooklyn | NY |
| 4551 | American Home Companions | 17% | $4.9 million | ■ Health | 13 | Orlando | FL |
| 622 | American IT Solutions | 484% | $5.4 million | ■ IT Services | 75 | Hamden | CT |
| 1316 | American Paper Optics | 223% | $20.8 million | ■ Consumer Products & Services | 30 | Bartlett | TN |
| 4128 | American Portfolios Financial Services | 29% | $66.1 million | ■ Financial Services | 72 | Holbrook | NY |
| 930 | American Radiologist Network | 322% | $2.6 million | ■ Health | 37 | BOCA RATON | FL |
| 4035 | American Reading Company | 32% | $19.1 million | ■ Education | 92 | King of Prussia | PA |
| 3374 | American Reporting | 55% | $7.6 million | ■ Real Estate | 30 | Bothell | WA |
| 979 | American Security Programs | 306% | $55.8 million | ■ Security | 1200 | Dulles | VA |
| 809 | American Solar Electric | 374% | $30.4 million | ■ Energy | 106 | Scottsdale | AZ |
| 4650 | American Specialty Health | 14% | $146.2 million | ■ Health | 717 | San Diego | CA |
| 4821 | American Swiss Products | 9% | $3 million | ■ Manufacturing | 10 | Pittsford | NY |
| 4636 | American Technologies | 14% | $77.8 million | ■ Environmental Services | 462 | Orange | CA |
| 3687 | American Technology Services | 43% | $5.2 million | ■ IT Services | 40 | Fairfax | VA |
| 3858 | American Tire Distributors | 38% | $2.2 billion | ■ Consumer Products & Services | 2328 | Huntersville | NC |
| 3670 | American Unit | 44% | $24.2 million | ■ IT Services | 250 | Frisco | TX |
| 923 | AmericaRx.com | 325% | $15.2 million | ■ Retail | 20 | East Elmhurst | NY |
| 3780 | Americollect | 40% | $5.1 million | ■ Business Products & Services | 68 | Manitowoc | WI |
| 2887 | AmeriQuest Transportation Services | 76% | $359.1 million | ■ Logistics & Transportation | 90 | Cherry Hill | NJ |
| 3063 | Amherst Partners | 67% | $5.9 million | ■ Financial Services | 20 | Birmingham | MI |
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