Top 100 Department of Health and Human Services Contractors, FY2023

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Analytic Services Inc. Through Advanced Technology International Top NAICS codes 541714 Research and Development in Biotechnology (except Nanobiotechnology)	$1,727,932,256	4.5%	Rank history: not on the FY2021–FY2022 lists, #1 in FY2024 and not on the FY2025 list; new.
2	Leidos Holdings, Inc. 10 awardees, including Leidos Biomedical Research Inc. and Leidos, Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541512 Computer Systems Design Services 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services	$1,554,152,916	4.0%	Rank history: #3 in FY2021, #3 in FY2022, #3 in FY2024 and #3 in FY2025; up 1 since FY2022.
3	Maximus Inc. 5 awardees, including Maximus Federal Services, Inc. and Q2 Administrators, LLC Top NAICS codes 561422 Telemarketing Bureaus and Other Contact Centers 541611 Administrative Management and General Management Consulting Services 541512 Computer Systems Design Services	$846,166,219	2.2%	Rank history: #4 in FY2021, #7 in FY2022 and not on the FY2024–FY2025 lists; up 4 since FY2022.
4	General Dynamics Corporation 5 awardees, including General Dynamics Information Technology, Inc. and Dynport Vaccine Company LLC Top NAICS codes 541512 Computer Systems Design Services 541511 Custom Computer Programming Services 541330 Engineering Services	$799,406,880	2.1%	Rank history: #9 in FY2021, #10 in FY2022, #4 in FY2024 and #1 in FY2025; up 6 since FY2022.
5	Booz Allen Hamilton Holding Corporation 3 awardees, including Booz Allen Hamilton Inc. Top NAICS codes 541512 Computer Systems Design Services 541511 Custom Computer Programming Services 541611 Administrative Management and General Management Consulting Services	$625,915,519	1.6%	Rank history: #11 in FY2021, #8 in FY2022, #6 in FY2024 and #4 in FY2025; up 3 since FY2022.
6	Blue Cross & Blue Shield of South Carolina 4 awardees, including Palmetto Gba, LLC, CGS Administrators, LLC and Companion Data Services LLC Top NAICS codes 524114 Direct Health and Medical Insurance Carriers 541512 Computer Systems Design Services 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services	$611,389,128	1.6%	Rank history: #10 in FY2021, #11 in FY2022, #10 in FY2024 and not on the FY2025 list; up 5 since FY2022.
7	Rapid Deployment Inc. Top NAICS codes 624230 Emergency and Other Relief Services 561210 Facilities Support Services	$588,780,106	1.5%	Rank history: #2 in FY2021, #1 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
8	The Interpublic Group of Companies Inc 3 awardees, including IPG Dxtra, Inc. Top NAICS codes 541810 Advertising Agencies 541613 Marketing Consulting Services	$398,852,695	1.0%	Rank history: #15 in FY2021, #15 in FY2022, #17 in FY2024 and not on the FY2025 list; up 7 since FY2022.
9	Emergent Biosolutions Inc. 6 awardees, including Emergent Product Development Gaithersburg Inc., Emergent Biosolutions Canada Inc. and Cangene Corporation Top NAICS codes 325412 Pharmaceutical Preparation Manufacturing 325414 Biological Product (except Diagnostic) Manufacturing 541711 Research and Development in Biotechnology	$393,973,801	1.0%	Rank history: #7 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
10	Technical Resources International, Inc. Top NAICS codes 541714 Research and Development in Biotechnology (except Nanobiotechnology) 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$383,137,481	1.0%	Rank history: #61 in FY2021, #85 in FY2022, #86 in FY2024 and #73 in FY2025; up 75 since FY2022.
11	Deloitte LLP 3 awardees, including Deloitte Consulting LLP, Deloitte & Touche LLP and Deloitte Financial Advisory Services LLP Top NAICS codes 541512 Computer Systems Design Services 541519 Other Computer Related Services 541611 Administrative Management and General Management Consulting Services	$380,818,247	1.0%	Rank history: #8 in FY2021, #13 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
12	Icon Government and Public Health Solutions Inc. Top NAICS codes 541714 Research and Development in Biotechnology (except Nanobiotechnology) 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$358,918,685	0.9%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 450 since FY2022.
13	Allucent Government Services (Us) LLC Top NAICS codes 541714 Research and Development in Biotechnology (except Nanobiotechnology) 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541990 All Other Professional, Scientific, and Technical Services	$343,565,823	0.9%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
14	Regeneron Pharmaceuticals Inc. Top NAICS codes 541711 Research and Development in Biotechnology	$326,475,488	0.8%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
15	HP Enterprise Services LLC 7 awardees, including Peraton Inc., Peraton Enterprise Solutions LLC and Safeguard Services LLC Top NAICS codes 541512 Computer Systems Design Services 541990 All Other Professional, Scientific, and Technical Services 541511 Custom Computer Programming Services	$326,320,340	0.8%	Rank history: #60 in FY2021, #23 in FY2022, #47 in FY2024 and not on the FY2025 list; up 8 since FY2022.
16	Carahsoft Technology Corp Top NAICS codes 511210 Software Publishers 541519 Other Computer Related Services 334111 Electronic Computer Manufacturing	$302,257,495	0.8%	Rank history: #38 in FY2021, #35 in FY2022, #13 in FY2024 and #10 in FY2025; up 19 since FY2022.
17	Research Triangle Institute Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541611 Administrative Management and General Management Consulting Services 541720 Research and Development in the Social Sciences and Humanities	$290,115,422	0.7%	Rank history: #28 in FY2021, #25 in FY2022, #9 in FY2024 and #21 in FY2025; up 8 since FY2022.
18	ICF International, Inc. 4 awardees, including ICF Incorporated, L.L.C., ICF Macro Inc. and ICF Esac, LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541512 Computer Systems Design Services 541511 Custom Computer Programming Services	$287,329,888	0.7%	Rank history: #26 in FY2021, #21 in FY2022 and not on the FY2024–FY2025 lists; up 3 since FY2022.
19	Anthem Inc. 2 awardees, including Wellpoint Federal Solutions, Inc. Top NAICS codes 524114 Direct Health and Medical Insurance Carriers 541512 Computer Systems Design Services 541519 Other Computer Related Services	$285,396,021	0.7%	Rank history: #29 in FY2021, #27 in FY2022, #32 in FY2024 and #12 in FY2025; up 8 since FY2022.
20	The Mitre Corporation Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541519 Other Computer Related Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$271,393,313	0.7%	Rank history: #25 in FY2021, #29 in FY2022, #23 in FY2024 and #32 in FY2025; up 9 since FY2022.
21	Vera Institute of Justice, Inc. Top NAICS codes 541110 Offices of Lawyers	$270,027,205	0.7%	Rank history: #36 in FY2021, #38 in FY2022 and not on the FY2024–FY2025 lists; up 17 since FY2022.
22	Family Endeavors, Inc. Top NAICS codes 624110 Child and Youth Services 561210 Facilities Support Services	$265,853,530	0.7%	Rank history: #14 in FY2021, #2 in FY2022, #11 in FY2024 and not on the FY2025 list; down 20 since FY2022.
23	Deloitte Consulting LLP Top NAICS codes 541512 Computer Systems Design Services 541611 Administrative Management and General Management Consulting Services 541330 Engineering Services	$263,392,476	0.7%	Rank history: not on the FY2021 list, #33 in FY2022 and not on the FY2024–FY2025 lists; up 10 since FY2022.
24	Abbott Laboratories 11 awardees, including Abbott Rapid DX North America LLC, Starlims Corporation and Abbott Molecular Inc. Top NAICS codes 325413 In-Vitro Diagnostic Substance Manufacturing 511210 Software Publishers 334516 Analytical Laboratory Instrument Manufacturing	$261,701,591	0.7%	Rank history: not on the FY2021 list, #78 in FY2022 and not on the FY2024–FY2025 lists; up 54 since FY2022.
25	New York Embroidery Studio Inc. Top NAICS codes 339113 Surgical Appliance and Supplies Manufacturing	$256,620,000	0.7%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
26	Mckesson Corporation 6 awardees, including Mckesson Medical-Surgical Government Solutions LLC, Mckesson Specialty Distribution LLC and Ndchealth Corporation Top NAICS codes 325412 Pharmaceutical Preparation Manufacturing 339112 Surgical and Medical Instrument Manufacturing 541519 Other Computer Related Services	$249,289,048	0.6%	Rank history: #1 in FY2021, #4 in FY2022, #78 in FY2024 and not on the FY2025 list; down 22 since FY2022.
27	Osang LLC Top NAICS codes 325412 Pharmaceutical Preparation Manufacturing	$237,000,000	0.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
28	Deployed Services, LLC Top NAICS codes 561210 Facilities Support Services 624230 Emergency and Other Relief Services	$224,252,594	0.6%	Rank history: #83 in FY2021, #49 in FY2022, #38 in FY2024 and not on the FY2025 list; up 21 since FY2022.
29	Westat, Inc. Top NAICS codes 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services 541990 All Other Professional, Scientific, and Technical Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$221,011,100	0.6%	Rank history: #27 in FY2021, #22 in FY2022, #24 in FY2024 and #24 in FY2025; down 7 since FY2022.
30	Amgen Inc. 2 awardees, including Amgen USA Inc. Top NAICS codes 541714 Research and Development in Biotechnology (except Nanobiotechnology) 325412 Pharmaceutical Preparation Manufacturing 325414 Biological Product (except Diagnostic) Manufacturing	$212,265,315	0.5%	Rank history: not on the FY2021 list, #19 in FY2022 and not on the FY2024–FY2025 lists; down 11 since FY2022.
31	Ingenesis Inc. 2 awardees, including Kelly Services, Inc. Top NAICS codes 541690 Other Scientific and Technical Consulting Services 541990 All Other Professional, Scientific, and Technical Services 561320 Temporary Help Services	$203,197,018	0.5%	Rank history: #24 in FY2021, #30 in FY2022, #72 in FY2024 and not on the FY2025 list; down 1 since FY2022.
32	Sapient Corporation 3 awardees, including Sapient Government Services, Inc., Plowshare Group, Inc. and Onpoint Consulting, Inc. Top NAICS codes 541511 Custom Computer Programming Services 541810 Advertising Agencies 541512 Computer Systems Design Services	$196,470,045	0.5%	Rank history: #39 in FY2021, #40 in FY2022, #71 in FY2024 and not on the FY2025 list; up 8 since FY2022.
33	National Collegiate Inventors & Innovators Alliance, Inc. Top NAICS codes 541618 Other Management Consulting Services 541990 All Other Professional, Scientific, and Technical Services 541611 Administrative Management and General Management Consulting Services	$195,345,819	0.5%	Rank history: not on the FY2021 list, #69 in FY2022 and not on the FY2024–FY2025 lists; up 36 since FY2022.
34	Guidehouse Inc. 2 awardees Top NAICS codes 541512 Computer Systems Design Services 541611 Administrative Management and General Management Consulting Services 541511 Custom Computer Programming Services	$188,606,740	0.5%	Rank history: #48 in FY2021, #66 in FY2022 and not on the FY2024–FY2025 lists; up 32 since FY2022.
35	Global Health Investment Corporation Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$184,588,220	0.5%	Rank history: not on the FY2021 list, #88 in FY2022 and not on the FY2024–FY2025 lists; up 53 since FY2022.
36	Serco North America (Holdings) Inc Through Serco Inc. Top NAICS codes 541512 Computer Systems Design Services	$179,255,360	0.5%	Rank history: #37 in FY2021, #26 in FY2022 and not on the FY2024–FY2025 lists; down 10 since FY2022.
37	National Opinion Research Center Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541720 Research and Development in the Social Sciences and Humanities 541910 Marketing Research and Public Opinion Polling	$176,088,508	0.5%	Rank history: #41 in FY2021, #41 in FY2022, #40 in FY2024 and #36 in FY2025; up 4 since FY2022.
38	Guidewell Mutual Holding Corporation Through Novitas Solutions, Inc. Top NAICS codes 524114 Direct Health and Medical Insurance Carriers 541990 All Other Professional, Scientific, and Technical Services 524292 Pharmacy Benefit Management and Other Third Party Administration of Insurance and Pension Funds	$172,054,818	0.4%	Rank history: #22 in FY2021, #39 in FY2022, #48 in FY2024 and not on the FY2025 list; up 1 since FY2022.
39	Agiliti Health Inc Top NAICS codes 811210 Electronic and Precision Equipment Repair and Maintenance 811219 Other Electronic and Precision Equipment Repair and Maintenance	$169,914,427	0.4%	Rank history: not on the FY2021–FY2022 lists, #29 in FY2024 and not on the FY2025 list; new.
40	Mathematica Inc 2 awardees Top NAICS codes 541720 Research and Development in the Social Sciences and Humanities 541611 Administrative Management and General Management Consulting Services 541690 Other Scientific and Technical Consulting Services	$169,282,971	0.4%	Rank history: #35 in FY2021, #36 in FY2022, #27 in FY2024 and #41 in FY2025; down 4 since FY2022.
41	Ihealth Labs Inc. Top NAICS codes 325413 In-Vitro Diagnostic Substance Manufacturing	$166,950,000	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
42	Axle Informatics, LLC Top NAICS codes 541519 Other Computer Related Services 541690 Other Scientific and Technical Consulting Services 541990 All Other Professional, Scientific, and Technical Services	$159,297,579	0.4%	Rank history: #85 in FY2021, #59 in FY2022, #45 in FY2024 and #26 in FY2025; up 17 since FY2022.
43	PPD Development LP 6 awardees, including FEI Company, Fisher Scientific Company L.L.C. and Richard-Allan Scientific LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 334516 Analytical Laboratory Instrument Manufacturing	$158,249,564	0.4%	Rank history: not on the FY2021–FY2022 lists, #34 in FY2024 and not on the FY2025 list; new.
44	I3 Federal LLC Top NAICS codes 541519 Other Computer Related Services	$158,134,094	0.4%	Rank history: #76 in FY2021, #58 in FY2022 and not on the FY2024–FY2025 lists; up 14 since FY2022.
45	Noridian Mutual Insurance Company Through Noridian Healthcare Solutions, LLC Top NAICS codes 524114 Direct Health and Medical Insurance Carriers 541990 All Other Professional, Scientific, and Technical Services	$154,078,825	0.4%	Rank history: #20 in FY2021, #20 in FY2022 and not on the FY2024–FY2025 lists; down 25 since FY2022.
46	Dell Federal Systems L.P. 3 awardees, including Dell Marketing L.P. Top NAICS codes 511210 Software Publishers 334111 Electronic Computer Manufacturing 541519 Other Computer Related Services	$151,818,144	0.4%	Rank history: #74 in FY2021, #56 in FY2022 and not on the FY2024–FY2025 lists; up 10 since FY2022.
47	Safesource Direct LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$144,763,968	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
48	Accenture Federal Services LLC Top NAICS codes 541512 Computer Systems Design Services	$139,807,424	0.4%	Rank history: #40 in FY2021, #34 in FY2022 and not on the FY2024–FY2025 lists; down 14 since FY2022.
49	Danaher Corporation 16 awardees, including Global Life Sciences Solutions USA LLC, Beckman Coulter, Inc. and AB Sciex LLC Top NAICS codes 325412 Pharmaceutical Preparation Manufacturing 541714 Research and Development in Biotechnology (except Nanobiotechnology) 334516 Analytical Laboratory Instrument Manufacturing	$138,705,308	0.4%	Rank history: #71 in FY2021, #83 in FY2022 and not on the FY2024–FY2025 lists; up 34 since FY2022.
50	Siga Technologies, Inc. Top NAICS codes 541714 Research and Development in Biotechnology (except Nanobiotechnology)	$138,169,505	0.4%	Rank history: #51 in FY2021, not on the FY2022 list, #51 in FY2024 and #83 in FY2025; up 128 since FY2022.
51	Medical Science & Computing, LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541512 Computer Systems Design Services 541611 Administrative Management and General Management Consulting Services	$136,917,754	0.4%	Rank history: #32 in FY2021, #42 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
52	Access Bio, Inc. Top NAICS codes 325413 In-Vitro Diagnostic Substance Manufacturing	$135,454,000	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
53	American Type Culture Collection Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541990 All Other Professional, Scientific, and Technical Services 541711 Research and Development in Biotechnology	$135,157,187	0.3%	Rank history: not on the FY2021 list, #96 in FY2022, #97 in FY2024 and not on the FY2025 list; up 43 since FY2022.
54	Quidel Corp Top NAICS codes 325413 In-Vitro Diagnostic Substance Manufacturing 334516 Analytical Laboratory Instrument Manufacturing 339113 Surgical Appliance and Supplies Manufacturing	$127,548,897	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
55	CVS Health Corporation 3 awardees, including CVS Pharmacy, Inc., CVS Healthspire Payor & Life Sciences LLC and CSR Inc. Top NAICS codes 621999 All Other Miscellaneous Ambulatory Health Care Services 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services 541990 All Other Professional, Scientific, and Technical Services	$126,866,433	0.3%	Rank history: #88 in FY2021, #14 in FY2022 and not on the FY2024–FY2025 lists; down 41 since FY2022.
56	Bavarian Nordic A / S 2 awardees, including Bavarian Nordic, Inc. Top NAICS codes 325412 Pharmaceutical Preparation Manufacturing	$125,526,228	0.3%	Rank history: #65 in FY2021, #18 in FY2022, #26 in FY2024 and #28 in FY2025; down 38 since FY2022.
57	Teamstaff Inc. 3 awardees, including Social & Scientific Systems, Inc., Dlh, LLC and Danya International LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541512 Computer Systems Design Services 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$120,649,796	0.3%	Rank history: #86 in FY2021, #89 in FY2022, #46 in FY2024 and #31 in FY2025; up 32 since FY2022.
58	UnitedHealth Group Incorporated 7 awardees, including Optumserve Technology Services, Inc., The Lewin Group, Inc. and Optumserve Health Services, Inc. Top NAICS codes 524292 Pharmacy Benefit Management and Other Third Party Administration of Insurance and Pension Funds 541720 Research and Development in the Social Sciences and Humanities 541512 Computer Systems Design Services	$119,138,334	0.3%	Rank history: #30 in FY2021, #31 in FY2022, #43 in FY2024 and #78 in FY2025; down 27 since FY2022.
59	Sabin Albert B Vaccine Inst Through Albert B. Sabin Vaccine Institute, Inc. (The) Top NAICS codes 541714 Research and Development in Biotechnology (except Nanobiotechnology)	$116,551,404	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 171 since FY2022.
60	Accenture Inc. Through Accenture Federal Services LLC Top NAICS codes 541512 Computer Systems Design Services 541611 Administrative Management and General Management Consulting Services 541511 Custom Computer Programming Services	$116,396,687	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
61	Integrated Quality Solutions, LLC Top NAICS codes 493120 Refrigerated Warehousing and Storage 493110 General Warehousing and Storage	$114,667,936	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 141 since FY2022.
62	Softrams LLC Top NAICS codes 541511 Custom Computer Programming Services 541512 Computer Systems Design Services	$113,439,953	0.3%	Rank history: #89 in FY2021, #87 in FY2022, #39 in FY2024 and not on the FY2025 list; up 25 since FY2022.
63	Acumen LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541690 Other Scientific and Technical Consulting Services 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services	$108,501,382	0.3%	Rank history: #53 in FY2021, #64 in FY2022, #53 in FY2024 and #54 in FY2025; up 1 since FY2022.
64	Government of the United States 8 awardees, including DLA Troop Support, Uchicago Argonne, LLC and Bakersfield American Indian Health Project Top NAICS codes 325412 Pharmaceutical Preparation Manufacturing 339113 Surgical Appliance and Supplies Manufacturing 622110 General Medical and Surgical Hospitals	$106,547,959	0.3%	Rank history: #91 in FY2021, #76 in FY2022, #64 in FY2024 and #40 in FY2025; up 12 since FY2022.
65	Sparksoft Corporation 2 awardees Top NAICS codes 541512 Computer Systems Design Services 541519 Other Computer Related Services 541990 All Other Professional, Scientific, and Technical Services	$106,172,026	0.3%	Rank history: #99 in FY2021, #80 in FY2022 and not on the FY2024–FY2025 lists; up 15 since FY2022.
66	Tista Science and Technology Corporation Top NAICS codes 541512 Computer Systems Design Services 541511 Custom Computer Programming Services 541513 Computer Facilities Management Services	$100,303,651	0.3%	Rank history: #56 in FY2021, #57 in FY2022, #98 in FY2024 and not on the FY2025 list; down 9 since FY2022.
67	Luminary Labs LLC Top NAICS codes 541714 Research and Development in Biotechnology (except Nanobiotechnology)	$100,000,000	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
68	The Emmes Company, LLC Top NAICS codes 541713 Research and Development in Nanotechnology 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541611 Administrative Management and General Management Consulting Services	$97,622,223	0.3%	Rank history: #73 in FY2021, #74 in FY2022, #56 in FY2024 and #47 in FY2025; up 6 since FY2022.
69	Roche Holding AG 5 awardees, including Roche Diagnostics Corporation, Hoffmann-La Roche Inc. and Roche Diabetes Care Inc. Top NAICS codes 325413 In-Vitro Diagnostic Substance Manufacturing 334516 Analytical Laboratory Instrument Manufacturing 541711 Research and Development in Biotechnology	$97,540,796	0.3%	Rank history: not on the FY2021 list, #100 in FY2022 and not on the FY2024–FY2025 lists; up 31 since FY2022.
70	Icahn School of Medicine at Mount Sinai Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 621498 All Other Outpatient Care Centers 923120 Administration of Public Health Programs	$96,256,244	0.2%	Rank history: #81 in FY2021, not on the FY2022 list, #95 in FY2024 and not on the FY2025 list; up 45 since FY2022.
71	True North Communications Inc Top NAICS codes 541810 Advertising Agencies	$95,800,000	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
72	Ventech Solutions Inc. 2 awardees Top NAICS codes 541512 Computer Systems Design Services	$95,658,085	0.2%	Rank history: #46 in FY2021, #50 in FY2022 and not on the FY2024–FY2025 lists; down 22 since FY2022.
73	RHO Inc. Through Rho Federal Systems Division Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541714 Research and Development in Biotechnology (except Nanobiotechnology)	$91,394,123	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 186 since FY2022.
74	REI Systems Inc. Top NAICS codes 541511 Custom Computer Programming Services 541519 Other Computer Related Services	$91,342,136	0.2%	Rank history: not on the FY2021 list, #86 in FY2022 and not on the FY2024–FY2025 lists; up 12 since FY2022.
75	K W Tunnell Company Inc. Through Tunnell Consulting Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$91,086,500	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 34 since FY2022.
76	CGI Technologies and Solutions Inc. 2 awardees, including CGI Federal Inc. Top NAICS codes 541519 Other Computer Related Services 541512 Computer Systems Design Services 334111 Electronic Computer Manufacturing	$88,659,226	0.2%	Rank history: #52 in FY2021, #68 in FY2022 and not on the FY2024–FY2025 lists; down 8 since FY2022.
77	Duke University Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541714 Research and Development in Biotechnology (except Nanobiotechnology) 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$88,552,294	0.2%	Rank history: not on the FY2021 list, #82 in FY2022, #92 in FY2024 and not on the FY2025 list; up 5 since FY2022.
78	General Dynamics Information Technology, Inc. Top NAICS codes 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services 541512 Computer Systems Design Services 541511 Custom Computer Programming Services	$87,148,240	0.2%	Rank history: #78 in FY2021, #16 in FY2022 and not on the FY2024–FY2025 lists; down 62 since FY2022.
79	Barupon LLC Top NAICS codes 325413 In-Vitro Diagnostic Substance Manufacturing	$86,400,000	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
80	Omnicom Group Inc. 4 awardees, including Porter Novelli Public Services Inc., Ketchum Inc. and Matthews Media Group, Inc. Top NAICS codes 541810 Advertising Agencies 541910 Marketing Research and Public Opinion Polling 541820 Public Relations Agencies	$86,231,327	0.2%	Rank history: not on the FY2021 list, #84 in FY2022 and not on the FY2024–FY2025 lists; up 4 since FY2022.
81	The Providencia Group LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541990 All Other Professional, Scientific, and Technical Services	$85,920,106	0.2%	Rank history: not on the FY2021 list, #17 in FY2022, #49 in FY2024 and not on the FY2025 list; down 64 since FY2022.
82	Seqirus USA Inc. 2 awardees, including Seqirus Inc. Top NAICS codes 236210 Industrial Building Construction 325414 Biological Product (except Diagnostic) Manufacturing 325412 Pharmaceutical Preparation Manufacturing	$85,338,689	0.2%	Rank history: #69 in FY2021, #60 in FY2022 and not on the FY2024–FY2025 lists; down 22 since FY2022.
83	Black Canyon Consulting LLC Top NAICS codes 541511 Custom Computer Programming Services 541611 Administrative Management and General Management Consulting Services	$80,630,744	0.2%	Rank history: not on the FY2021–FY2022 lists, #70 in FY2024 and #43 in FY2025; up 70 since FY2022.
84	Verizon Communications Inc. 3 awardees, including Verizon Business Network Services LLC, Cellco Partnership and Verizon Federal Inc. Top NAICS codes 517110 Wired Telecommunications Carriers 517312 Wireless Telecommunications Carriers (except Satellite) 541519 Other Computer Related Services	$79,882,747	0.2%	Rank history: #72 in FY2021, #75 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
85	The Whiting-Turner Contracting Company Top NAICS codes 236220 Commercial and Institutional Building Construction	$78,619,394	0.2%	Rank history: not on the FY2021–FY2022 lists, #87 in FY2024 and #90 in FY2025; new.
86	Palantir Technologies Inc. Top NAICS codes 511210 Software Publishers 513210 Software Publishers	$77,889,190	0.2%	Rank history: not on the FY2021 list, #93 in FY2022, #66 in FY2024 and not on the FY2025 list; up 7 since FY2022.
87	U.s. Committee for Refugees and Immigrants, Inc. Top NAICS codes 541199 All Other Legal Services	$77,788,700	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
88	Cognosante Holdings, LLC 2 awardees, including Cognosante MVH LLC Top NAICS codes 541511 Custom Computer Programming Services	$77,422,845	0.2%	Rank history: #77 in FY2021, #91 in FY2022, #62 in FY2024 and not on the FY2025 list; up 3 since FY2022.
89	ABT Global LLC 2 awardees Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541990 All Other Professional, Scientific, and Technical Services	$76,753,877	0.2%	Rank history: #64 in FY2021, #63 in FY2022 and not on the FY2024–FY2025 lists; down 26 since FY2022.
90	The Johns Hopkins University 3 awardees, including The Johns Hopkins University Applied Physics Laboratory LLC and Broadway Services, Incorporated Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541714 Research and Development in Biotechnology (except Nanobiotechnology) 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$75,430,204	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 45 since FY2022.
91	Semanticbits LLC Top NAICS codes 541519 Other Computer Related Services	$74,017,576	0.2%	Rank history: #42 in FY2021, #51 in FY2022 and not on the FY2024–FY2025 lists; down 40 since FY2022.
92	Trustees of Boston University 2 awardees Top NAICS codes 541714 Research and Development in Biotechnology (except Nanobiotechnology) 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541711 Research and Development in Biotechnology	$72,757,942	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 64 since FY2022.
93	Esmark Corp. Through Metro Logics Inc. Top NAICS codes 493120 Refrigerated Warehousing and Storage 493110 General Warehousing and Storage	$72,213,719	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 106 since FY2022.
94	Merck KG AUF Aktien 4 awardees, including EMD Millipore Corp, Sigma-Aldrich, Inc. and Bioreliance Corporation Top NAICS codes 339113 Surgical Appliance and Supplies Manufacturing 334516 Analytical Laboratory Instrument Manufacturing 541714 Research and Development in Biotechnology (except Nanobiotechnology)	$70,308,670	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
95	Life Science Logistics LLC Top NAICS codes 493120 Refrigerated Warehousing and Storage 493110 General Warehousing and Storage	$69,970,115	0.2%	Rank history: #62 in FY2021, #37 in FY2022 and not on the FY2024–FY2025 lists; down 58 since FY2022.
96	Emory University Top NAICS codes 541380 Testing Laboratories and Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541714 Research and Development in Biotechnology (except Nanobiotechnology)	$69,591,687	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 156 since FY2022.
97	New TECH Solutions, Inc. Top NAICS codes 541519 Other Computer Related Services 334111 Electronic Computer Manufacturing 511210 Software Publishers	$69,114,449	0.2%	Rank history: not on the FY2021–FY2022 lists, #89 in FY2024 and #74 in FY2025; up 14 since FY2022.
98	First Coast Service Options Inc. Top NAICS codes 524114 Direct Health and Medical Insurance Carriers	$69,105,668	0.2%	Rank history: not on the FY2021–FY2022 lists, #74 in FY2024 and #71 in FY2025; new.
99	Battelle Memorial Institute 2 awardees Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541714 Research and Development in Biotechnology (except Nanobiotechnology) 541330 Engineering Services	$68,095,332	0.2%	Rank history: #84 in FY2021, not on the FY2022 list, #93 in FY2024 and #48 in FY2025; up 4 since FY2022.
100	Mvm, Inc. Top NAICS codes 624230 Emergency and Other Relief Services	$68,005,666	0.2%	Rank history: #18 in FY2021, #9 in FY2022, #41 in FY2024 and not on the FY2025 list; down 91 since FY2022.

How this ranking works

• Source: every contract action FPDS records (as published on SAM.gov) in the period, as GovTribe received it.
• Amounts are net obligations: what was obligated, less what was deobligated. Shares are of $38.7 billion obligated before deobligations, so they never pass 100%.
• Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
• Fiscal year 2023 ran Oct 1, 2022 – Sep 30, 2023. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
• Rank changes compare with FY2022. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
• Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list. The step from FY2022 takes the color of the rank change beside it.
• Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers