ALL OTHER PROFESSIONAL, SCIENTIFIC, AND TECHNICAL SERVICES — Federal Contractors (NAICS code 541990)
150 federal contractors under NAICS 541990 — ALL OTHER PROFESSIONAL, SCIENTIFIC, AND TECHNICAL SERVICES are published on this site, with $36.21B in combined obligations on file. The largest are Sierra Nevada COMPANY, LLC, The Mitre CORPORATION, and Oak Ridge Associated Universities, INCORPORATED.
| Contractor | State | Obligations on file | Top agency |
|---|---|---|---|
| Sierra Nevada COMPANY, LLC | NV | $3.97B | Department of Defense |
| The Mitre CORPORATION | MA | $2.75B | Department of Defense |
| Oak Ridge Associated Universities, INCORPORATED | TN | $2.14B | Department of Energy |
| Dai Global LLC | MD | $2.01B | Agency for International Development |
| Aevex Aerospace, LLC | CA | $1.47B | Department of Defense |
| Institute for Defense Analyses | VA | $1.39B | Department of Defense |
| Abt Global LLC | MD | $1.10B | Agency for International Development |
| Ptsi Managed Services INC | CA | $923.4M | Department of Transportation |
| Abt Global LLC | MA | $817.6M | Agency for International Development |
| Ard, INC. | VT | $678.1M | Agency for International Development |
| Calibre Systems INC | VA | $633.6M | Department of Defense |
| The Cna CORPORATION | VA | $629.3M | Department of Defense |
| Strategic Analysis, INC. | VA | $568.2M | Department of Defense |
| Bluestaq LLC | CO | $549.2M | General Services Administration |
| Medical Science & Computing, LLC | MD | $548.2M | Department of Health and Human Services |
| Palladium International LLC | DC | $535.6M | Agency for International Development |
| Qlarant Integrity Solutions LLC | MD | $463.0M | Department of Health and Human Services |
| Tuvli LLC | VA | $444.2M | Department of State |
| Goldbelt C6, LLC | VA | $387.4M | Department of Health and Human Services |
| Poplicus INCORPORATED | VA | $351.9M | Department of Defense |
| Culmen International, LLC | VA | $339.6M | Department of Defense |
| Creative Associates International, INC. | MD | $327.3M | Agency for International Development |
| Eagle Integrated Services, LLC | TX | $323.0M | Department of Defense |
| Education Development Center, INC. | MA | $294.4M | Agency for International Development |
| Dt Global INC | VA | $289.5M | Agency for International Development |
| Northrop Grumman Systems CORPORATION | CA | $289.4M | Department of Defense |
| Tetra Tech Es, INC. | VA | $280.5M | Agency for International Development |
| Hendall INC | MD | $280.0M | Department of Health and Human Services |
| Safeguard Services LLC | PA | $279.1M | Department of Health and Human Services |
| Celeen LLC | CT | $267.8M | Department of Defense |
| Kaiser Foundation Hospitals | CA | $266.4M | Department of Health and Human Services |
| Accenture Federal Services LLC | VA | $263.9M | Department of Defense |
| Connected Alliances LLC | NH | $257.8M | Department of Defense |
| Gzo, INC. | TX | $252.2M | Department of Defense |
| Raytheon Southeast Asia Systems COMPANY | MA | $244.8M | Department of Defense |
| Dexis Interactive LLC | DC | $240.1M | Agency for International Development |
| Tanaq Support Services, LLC | AK | $236.1M | Department of Health and Human Services |
| Management Sciences for Health, INC. | VA | $235.1M | Agency for International Development |
| Cyber Engineering and Technical Alliance, LLC | MD | $210.9M | General Services Administration |
| Kapili Services, LLC | FL | $204.3M | Department of Defense |
| Cherokee Nation Integrated Health, L.L.C. | OK | $180.1M | Department of Defense |
| Icf Macro INC | VA | $176.3M | Agency for International Development |
| Schafer Government Services, LLC | VA | $174.8M | Department of Defense |
| Nathan Associates LLC | VA | $173.9M | Agency for International Development |
| People, Technology and Processes, LLC | FL | $171.0M | Department of Defense |
| Laulima Government Solutions, LLC | FL | $170.3M | Department of Health and Human Services |
| Blue Water Thinking,llc | MD | $167.9M | Department of Veterans Affairs |
| National Marrow Donor Program | MN | $163.7M | Department of Health and Human Services |
| Kld Associates INC | NY | $155.6M | Department of Transportation |
| Chickasaw Health Consulting, LLC | OK | $152.5M | Department of Health and Human Services |
| Nightwing Technologies, LLC | VA | $152.3M | Department of Defense |
| Cherokee Insights LLC | OK | $144.6M | Department of Defense |
| Tanaq Management Services LLC | AK | $144.1M | Department of Health and Human Services |
| Karna LLC | GA | $140.4M | Department of Health and Human Services |
| Parsons Government Services International INC. | CA | $135.9M | Department of Energy |
| Nemean Solutions, LLC | AZ | $135.0M | Department of Defense |
| Mpf-Zai Solutions LLC | MD | $133.9M | Department of Health and Human Services |
| International Business Sales and Services CORP | MD | $131.7M | Department of Commerce |
| Rmgs INC | VA | $121.9M | Department of Defense |
| Filius CORPORATION | CA | $115.6M | Department of Defense |
| Medical Access Uganda LIMITED | — | $115.4M | Agency for International Development |
| Centra Technology, INC | MA | $114.8M | Department of Defense |
| International Development Group Advisory Services, LLC | VA | $111.3M | Agency for International Development |
| Vets Synergetic Group LLC | VA | $110.9M | Department of Health and Human Services |
| Asrt, INC. | GA | $109.7M | Department of Health and Human Services |
| Cpa Global (landon Ip) INC | AZ | $109.6M | Department of Commerce |
| Ocean Bay Information and Systems Management, LLC | AK | $108.9M | Department of Justice |
| Panagora Group INC. | MD | $107.7M | Agency for International Development |
| Cardinal Government Services, INC. | IL | $103.9M | Department of Commerce |
| Calvert Systems Engineering, INC | NE | $103.9M | Department of Defense |
| Analysis Group INC | MA | $99.3M | Department of Justice |
| Ocean Associates INC | VA | $98.3M | Department of Commerce |
| Syscom, INC | CO | $97.3M | Department of Defense |
| Jyg Innovations LLC | OH | $95.5M | Department of Defense |
| Penobscot Support Services, LLC | ME | $95.0M | Department of Health and Human Services |
| Bennett Aerospace INC | NC | $94.1M | Department of Defense |
| Rwanda Medical Supply (rms) LTD | — | $93.7M | Agency for International Development |
| International Business Initiatives LLC | MD | $92.9M | Agency for International Development |
| Cardinal Point Captains, INC. | CA | $92.5M | Department of Commerce |
| Socha, LLC | NE | $86.8M | Agency for International Development |
| Computational Physics, INC. | VA | $85.6M | Department of Defense |
| Clear Lincs LLC | CO | $85.2M | General Services Administration |
| Bates White, LLC | DC | $82.5M | Department of the Treasury |
| State of Oregon Department of Fish and Wildlife | OR | $80.8M | Department of Defense |
| Nemean Trideum Joint Venture LLC | AZ | $78.6M | Department of Defense |
| Specpro Sustainment and Environmental, LLC | TX | $77.8M | Department of Defense |
| Hunatek System Solutions LLC | AK | $75.5M | Department of Energy |
| Planet Labs Federal, INC. | VA | $74.1M | National Aeronautics and Space Administration |
| Digital Cloak, LLC | VA | $73.9M | Department of Defense |
| Seatech Global Security Solutions | WA | $73.3M | Department of Energy |
| Social Impact INC | VA | $71.4M | Agency for International Development |
| Policy Research Associates, INC. | NY | $70.2M | Department of Health and Human Services |
| Areli, INC. | MD | $69.8M | Department of Defense |
| Diversified Management Solutions, INC. | IA | $69.3M | Department of Transportation |
| Condor Reliability Services, INC. | CA | $67.4M | Department of Transportation |
| Vero Technical Support, INC | FL | $66.4M | Department of Transportation |
| Bowhead Global Systems and Technology, LLC | VA | $66.1M | Department of Defense |
| Technical and Engineering Support Alliance, LLC | MD | $64.2M | Department of Commerce |
| Bestica, INC. | TX | $63.1M | Department of Defense |
| The Medical College of Wisconsin, INC. | WI | $62.1M | Department of Health and Human Services |
| Cyberpro JV LLC | AL | $61.5M | Department of Health and Human Services |
| Three Star Government Solutions, LLC | AK | $58.5M | Department of Health and Human Services |
| The Dcode Group INC | DC | $53.7M | Department of Defense |
| Mag Ds CORP | VA | $53.0M | Department of Defense |
| Redcastle Resources INC | UT | $52.6M | Department of Agriculture |
| Midnight Sun Technologies LLC | VA | $50.8M | Department of Health and Human Services |
| Global Patent Solutions, L.L.C. | AZ | $50.3M | Department of Commerce |
| Htgs-Culmen JV LLC | VA | $49.2M | Department of Energy |
| Xcellent Technology Solutions, INC | VA | $48.4M | Department of the Interior |
| Bluepath Labs LLC | DC | $48.1M | Department of Energy |
| The Qed Group LLC | VA | $48.0M | Agency for International Development |
| Synergy America, INC. | GA | $48.0M | Department of Health and Human Services |
| Remotely Piloted Solutions, L.L.C. | TX | $47.7M | Department of Defense |
| Midwest Weather, INC. | MO | $47.5M | Department of Transportation |
| Federal Strategies, LLC | VA | $47.5M | Department of Defense |
| Veritas Management Group, INC. | GA | $46.0M | Department of Health and Human Services |
| Puyenpa Technologies, LLC | NV | $45.0M | Department of Defense |
| Vanasse Hangen Brustlin, INC. | MA | $44.3M | Department of Transportation |
| Engineering & Computer Simulations, INC. | FL | $43.7M | Department of Defense |
| Fti Consulting, INC. | DC | $43.7M | Department of the Treasury |
| Pacific States Marine Fisheries Commission | OR | $41.6M | Department of Commerce |
| Flatwater, INCORPORATED | NE | $41.4M | Department of the Interior |
| Linc LLC | DC | $41.2M | Agency for International Development |
| Pal Technologies, INC | VA | $40.5M | Department of Defense |
| Techniarts Engineering LLC | MD | $40.0M | Department of State |
| Saltwater INC. | AK | $39.6M | Department of Commerce |
| Crawford Consulting Services, INC. | PA | $39.0M | Department of Defense |
| Forensic Technology (canada) INC. | — | $38.2M | Department of Justice |
| Mitchell Group, INC. (the) | DC | $37.6M | Department of Health and Human Services |
| Kearns & West INC | CA | $37.4M | Department of the Interior |
| Numark Associates, INC | MD | $36.4M | Agency for International Development |
| Argentech Solutions, INC. | NH | $34.8M | Department of Defense |
| Cherokee United Services, L.L.C. | OK | $34.5M | Department of the Interior |
| Xentity CORPORATION | CO | $33.6M | Department of Agriculture |
| Navanti Group LLC | VA | $32.9M | Agency for International Development |
| Tigua Technology Services, INC. | TX | $32.6M | Department of Defense |
| Chenhall Sedona Services Joint Venture, LLC | IA | $31.6M | Department of the Interior |
| 4es CORPORATION | TX | $31.5M | Department of Health and Human Services |
| Ivyhill-Zai, LLC | MD | $31.1M | Department of Health and Human Services |
| Mohawk Networks LLC | NY | $30.8M | Department of Health and Human Services |
| Glacier Support Services, LLC | TX | $30.2M | Department of Defense |
| New Frontier Innovations LLC | VA | $28.3M | Department of Defense |
| Leadsonline, LLC | TX | $25.9M | Department of Justice |
| Guroo LLC | VA | $24.5M | Department of Defense |
| Avtech Research CORPORATION | NV | $23.3M | Department of Defense |
| Sterile Services CO | FL | $22.1M | Department of Defense |
| Daycom LLC | OH | $20.7M | Environmental Protection Agency |
| Camris International, LLC | MD | $20.5M | Department of Health and Human Services |
| Parymon CORP | MD | $10.8M | Department of Commerce |
| The Glocoms Group INC | IL | $9.5M | Department of Defense |
Obligations shown are net federal contract obligations from USAspending.gov, fiscal year(s) currently in this export. See the methodology page for inclusion rules and the publication threshold.