| Deloitte Consulting LLP | Arlington | VA | $17.3B |
| KBR Services, LLC | Houston | TX | $7.75B |
| Chemonics International, Inc. | Arlington | VA | $7.22B |
| Maximus Federal Services, Inc. | Mclean | VA | $7.1B |
| HII Mission Technologies Corp. | Willowbrook | IL | $3.38B |
| Icf Incorporated, L.L.C. | Reston | VA | $2.6B |
| Pae Government Services, Inc. | Chantilly | VA | $2.33B |
| Lmi Consulting, LLC | Tysons Corner | VA | $2.02B |
| Magellan Federal, Inc. | Arlington | VA | $1.91B |
| Dai Global LLC | Bethesda | MD | $1.9B |
| General Dynamics-ots, Inc. | Colchester | VT | $1.53B |
| Cognosante MVH LLC | Arlington | VA | $1.42B |
| BCG Federal Corp. | Washington | DC | $1.22B |
| Sev1tech, LLC | Woodbridge | VA | $958M |
| Avantus Federal LLC | Lorton | VA | $903M |
| American Institutes For Research In The Behavioral Sciences | Arlington | VA | $787M |
| Calibre Systems Inc. | Alexandria | VA | $625M |
| The Cna Corporation | Arlington | VA | $618M |
| Serco-ips Corporation | Herndon | VA | $546M |
| The Providencia Group LLC | Ashburn | VA | $533M |
| Asrc Federal Professional Services, LLC | Beltsville | MD | $530M |
| Iron Vine Security LLC | Fairfax | VA | $511M |
| Information Systems & Networks Corporation | Bethesda | MD | $505M |
| Broadleaf, Inc. | Reston | VA | $494M |
| System High Corporation | Chantilly | VA | $489M |
| Gap Solutions, Inc. | Herndon | VA | $484M |
| Tatitlek Federal Services LLC | Anchorage | AK | $443M |
| Analytic Services Inc. | Arlington | VA | $442M |
| Mckinsey & Company, Inc. Washington D.C. | Washington | DC | $382M |
| The Lewin Group, Inc. | La Crosse | WI | $380M |
| Itility, L.L.C | Chantilly | VA | $370M |
| Metaphase Consulting LLC | Reston | VA | $369M |
| Ohio Kepro, LLC | Mclean | VA | $356M |
| Pae Labat-anderson LLC | Falls Church | VA | $355M |
| Capgemini Government Solutions LLC | Mclean | VA | $349M |
| Amyx Inc. | Reston | VA | $346M |
| Western Door Federal, LLC | Chantilly | VA | $336M |
| KBR Diego Garcia, LLC | Houston | TX | $332M |
| Creative Associates International, Inc. | Mclean | VA | $327M |
| Dawson's Realty & Mortgages, Inc. | Duluth | GA | $327M |
| Universal Service Administrative Company | Washington | DC | $319M |
| Senture LLC | London | KY | $318M |
| Management Systems International, Inc. | Arlington | VA | $314M |
| Dt Global Inc. | Arlington | VA | $304M |
| Grant Thornton LLP | Chicago | IL | $301M |
| Advanced Technology Leaders, Inc. | Martinez | GA | $299M |
| Tetra Tech Es, Inc. | Arlington | VA | $280M |
| Titan Alpha LLC | Chantilly | VA | $280M |
| Project Enhancement Corporation | Germantown | MD | $278M |
| Trilogy Federal, LLC | Arlington | VA | $278M |
| Dun & Bradstreet, Inc. | Jacksonville | FL | $267M |
| Jefferson Consulting Group LLC | Washington | DC | $257M |
| Jones Lang Lasalle Americas, Inc. | Washington | DC | $248M |
| The Boston Consulting Group Inc. | Boston | MA | $248M |
| Aver LLC | Washington | DC | $246M |
| Encompass LLC | Potomac | MD | $244M |
| The Manhattan Strategy Group LLC | New York | NY | $244M |
| Cognosante, LLC | Arlington | VA | $244M |
| Logistics Management Institute | Mc Lean | VA | $236M |
| Management Sciences For Health, Inc. | Arlington | VA | $235M |
| Tekpro Support Services, LLC | San Antonio | TX | $234M |
| Cathexis, LLC | Mc Lean | VA | $229M |
| Bowhead Professional And Technical Solutions LLC | Springfield | VA | $229M |
| Start2 Group, Inc. | Cambridge | MA | $227M |
| Central Research Inc. | Lowell | AR | $227M |
| Macfadden & Associates, Inc. | Chantilly | VA | $217M |
| Gemini Industries Inc. | Burlington | MA | $217M |
| Akahi Ingenesis Partners LLC | Honolulu | HI | $213M |
| Integrated Finance And Accounting Solutions, LLC. | Washington | DC | $210M |
| Aviation Security Management LLC | Saint Petersburg | FL | $210M |
| Rer Solutions, Inc. | Washington | DC | $205M |
| Managed Care Advisors, Inc. | Bethesda | MD | $203M |
| D&G Support Services LLC | Woodbridge | VA | $201M |
| Cherokee Nation Solutions Link, L.L.C. | Tulsa | OK | $200M |
| Digital Mobilizations LLC | Arlington | VA | $198M |
| We2 Support Services 8a JV LLC | Grand Rapids | MI | $197M |
| C2C Innovative Solutions, Inc. | Jacksonville | FL | $196M |
| JBS International, Inc. | Rockville | MD | $195M |
| Eagle Hill Consulting, LLC | Arlington | VA | $192M |
| Akima Support Operations, LLC | Herndon | VA | $186M |
| Totally Joined For Achieving Collaborative Techniques (tjfact), LLC | Atlanta | GA | $186M |
| Hive Group, LLC | Mclean | VA | $185M |
| Ipsos Public Affairs, LLC | Norwalk | CT | $176M |
| Contracting Resources Group Inc. | Baltimore | MD | $176M |
| Icf Macro Inc. | Reston | VA | $176M |
| Nathan Associates LLC | Arlington | VA | $174M |
| Acuity International, LLC | Reston | VA | $170M |
| Pm Consulting Group LLC | Towson | MD | $167M |
| Fedwriters, Inc. | Fairfax | VA | $167M |
| WWC Global LLC | Mashantucket | CT | $164M |
| Java Productions, Inc. | Bastian | VA | $163M |
| Resilience Action Partners | Moon Township | PA | $160M |
| Luminary Labs LLC | New York | NY | $158M |
| R3 Strategic Support Group Inc. | San Diego | CA | $152M |
| Bryce Space And Technology, LLC | Alexandria | VA | $152M |
| Eagle Health, LLC | Chantilly | VA | $151M |
| Advanced Management Strategies Group, Inc. | Dumfries | VA | $149M |
| Zeiders Enterprises, Inc. | Woodbridge | VA | $149M |
| Stafford Consulting Company, Inc. | Mclean | VA | $145M |
| International Consulting Associates, Inc. | Arlington | VA | $144M |
