Top 100 Department of Health and Human Services Contractors, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Mckesson Corporation 9 awardees, including Mckesson Specialty Distribution LLC, Mckesson Medical-Surgical Government Solutions LLC and Ndchealth Corporation Top NAICS codes 493120 Refrigerated Warehousing and Storage 339112 Surgical and Medical Instrument Manufacturing 325412 Pharmaceutical Preparation Manufacturing	$2,002,807,294	5.4%	Rank history: #4 in FY2022, #26 in FY2023, #78 in FY2024 and not on the FY2025 list; up 6 since FY2020.
2	Rapid Deployment Inc. Top NAICS codes 624230 Emergency and Other Relief Services	$1,268,407,799	3.4%	Rank history: #1 in FY2022, #7 in FY2023 and not on the FY2024–FY2025 lists; up 66 since FY2020.
3	Leidos Holdings, Inc. 12 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) 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services 541512 Computer Systems Design Services	$1,085,116,717	2.9%	Rank history: #3 in FY2022, #2 in FY2023, #3 in FY2024 and #3 in FY2025; down 2 since FY2020.
4	Maximus Inc. 5 awardees, including Maximus Federal Services, Inc., Q2 Administrators, LLC and Business Computer Applications, Inc. Top NAICS codes 561422 Telemarketing Bureaus and Other Contact Centers 541512 Computer Systems Design Services 541611 Administrative Management and General Management Consulting Services	$1,011,809,037	2.7%	Rank history: #7 in FY2022, #3 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2020.
5	Walgreen Co. Top NAICS codes 621511 Medical Laboratories 325412 Pharmaceutical Preparation Manufacturing	$899,613,944	2.4%	Rank history: #5 in FY2022 and not on the FY2023–FY2025 lists; up 65 since FY2020.
6	Cherokee Nation 6 awardees, including Cherokee Nation Management & Consulting, L.l.c.., Cherokee Federal Solutions, L.L.C. and Cherokee Nation Strategic Programs, L.L.C. Top NAICS codes 624230 Emergency and Other Relief Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 623220 Residential Mental Health and Substance Abuse Facilities	$716,555,799	1.9%	Rank history: #28 in FY2022 and not on the FY2023–FY2025 lists; up 419 since FY2020.
7	Emergent Biosolutions Inc. 8 awardees, including Emergent Product Development Gaithersburg Inc., Emergent Biosolutions Canada Inc. and Emergent Virology, LLC Top NAICS codes 541711 Research and Development in Biotechnology 325414 Biological Product (except Diagnostic) Manufacturing 325412 Pharmaceutical Preparation Manufacturing	$636,384,931	1.7%	Rank history: not on the FY2022 list, #9 in FY2023 and not on the FY2024–FY2025 lists; down 5 since FY2020.
8	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 541611 Administrative Management and General Management Consulting Services 541990 All Other Professional, Scientific, and Technical Services	$614,825,054	1.6%	Rank history: #13 in FY2022, #11 in FY2023 and not on the FY2024–FY2025 lists; up 21 since FY2020.
9	General Dynamics Corporation 10 awardees, including General Dynamics Information Technology, Inc., Csra LLC and Dynport Vaccine Company LLC Top NAICS codes 541512 Computer Systems Design Services 541511 Custom Computer Programming Services 541613 Marketing Consulting Services	$589,951,906	1.6%	Rank history: #10 in FY2022, #4 in FY2023, #4 in FY2024 and #1 in FY2025; down 1 since FY2020.
10	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 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services 611691 Exam Preparation and Tutoring	$533,285,044	1.4%	Rank history: #11 in FY2022, #6 in FY2023, #10 in FY2024 and not on the FY2025 list; up 9 since FY2020.
11	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	$484,903,884	1.3%	Rank history: #8 in FY2022, #5 in FY2023, #6 in FY2024 and #4 in FY2025; up 4 since FY2020.
12	Modernatx Inc. Top NAICS codes 325414 Biological Product (except Diagnostic) Manufacturing	$435,113,565	1.2%	Rank history: #24 in FY2022 and not on the FY2023–FY2025 lists; down 9 since FY2020.
13	PPD Development L.P. 2 awardees Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541711 Research and Development in Biotechnology 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$417,316,274	1.1%	Rank history: not on the FY2022–FY2025 lists; up 61 since FY2020.
14	Family Endeavors, Inc. Top NAICS codes 624110 Child and Youth Services 624230 Emergency and Other Relief Services	$395,436,154	1.1%	Rank history: #2 in FY2022, #22 in FY2023, #11 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
15	The Interpublic Group of Companies Inc 3 awardees, including IPG Dxtra, Inc., True North Communications Inc. and Golin / Harris International, Inc. Top NAICS codes 541810 Advertising Agencies 541613 Marketing Consulting Services	$394,193,865	1.1%	Rank history: #15 in FY2022, #8 in FY2023, #17 in FY2024 and not on the FY2025 list; up 33 since FY2020.
16	Rite Aid Corporation Through Rite Aid Hdqtrs. Corp. Top NAICS codes 621511 Medical Laboratories	$376,079,968	1.0%	Rank history: #47 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
17	E3Health Solutions, LLC Top NAICS codes 621511 Medical Laboratories	$375,405,960	1.0%	Rank history: #43 in FY2022 and not on the FY2023–FY2025 lists; up 13 since FY2020.
18	Mvm, Inc. Top NAICS codes 624230 Emergency and Other Relief Services	$350,178,346	0.9%	Rank history: #9 in FY2022, #100 in FY2023, #41 in FY2024 and not on the FY2025 list; up 192 since FY2020.
19	America's Blood Centers Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$325,195,248	0.9%	Rank history: not on the FY2022–FY2025 lists; up 19 since FY2020.
20	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	$324,172,583	0.9%	Rank history: #20 in FY2022, #45 in FY2023 and not on the FY2024–FY2025 lists; up 33 since FY2020.
21	Airboss of America Corp Through Airboss Defense Group, LLC Top NAICS codes 339112 Surgical and Medical Instrument Manufacturing	$288,087,072	0.8%	Rank history: not on the FY2022–FY2025 lists; up 35 since FY2020.
22	Guidewell Mutual Holding Corporation 2 awardees, including Novitas Solutions, Inc. and First Coast Service Options, Inc. Top NAICS codes 524114 Direct Health and Medical Insurance Carriers 524292 Pharmacy Benefit Management and Other Third Party Administration of Insurance and Pension Funds	$287,296,499	0.8%	Rank history: #39 in FY2022, #38 in FY2023, #48 in FY2024 and not on the FY2025 list; unchanged since FY2020.
23	Deployed Resources LLC Top NAICS codes 624230 Emergency and Other Relief Services	$273,676,992	0.7%	Rank history: #62 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
24	Ingenesis Inc. 2 awardees, including Kelly Services, Inc. Top NAICS codes 541690 Other Scientific and Technical Consulting Services 624230 Emergency and Other Relief Services 541990 All Other Professional, Scientific, and Technical Services	$270,076,707	0.7%	Rank history: #30 in FY2022, #31 in FY2023, #72 in FY2024 and not on the FY2025 list; unchanged since FY2020.
25	The Mitre Corporation Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$267,212,218	0.7%	Rank history: #29 in FY2022, #20 in FY2023, #23 in FY2024 and #32 in FY2025; up 2 since FY2020.
26	ICF International, Inc. 4 awardees, including ICF Incorporated, L.L.C., Incentive Technology Group LLC and ICF Macro Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541512 Computer Systems Design Services 541511 Custom Computer Programming Services	$266,037,857	0.7%	Rank history: #21 in FY2022, #18 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2020.
27	Westat, Inc. Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541990 All Other Professional, Scientific, and Technical Services 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services	$256,559,230	0.7%	Rank history: #22 in FY2022, #29 in FY2023, #24 in FY2024 and #24 in FY2025; up 4 since FY2020.
28	Research Triangle Institute Top NAICS codes 541720 Research and Development in the Social Sciences and Humanities 541990 All Other Professional, Scientific, and Technical Services 541611 Administrative Management and General Management Consulting Services	$234,871,181	0.6%	Rank history: #25 in FY2022, #17 in FY2023, #9 in FY2024 and #21 in FY2025; down 8 since FY2020.
29	Anthem Inc. 2 awardees, including Wellpoint Federal Solutions, Inc. and New England Research Institutes Inc. 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	$224,865,135	0.6%	Rank history: #27 in FY2022, #19 in FY2023, #32 in FY2024 and #12 in FY2025; up 73 since FY2020.
30	UnitedHealth Group Incorporated 10 awardees, including United Healthcare 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 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services	$218,337,199	0.6%	Rank history: #31 in FY2022, #58 in FY2023, #43 in FY2024 and #78 in FY2025; up 25 since FY2020.
31	Fors Marsh Group LLC Top NAICS codes 511199 All Other Publishers 541330 Engineering Services 541720 Research and Development in the Social Sciences and Humanities	$214,789,204	0.6%	Rank history: #12 in FY2022 and not on the FY2023–FY2025 lists; down 8 since FY2020.
32	Medical Science & Computing, LLC Top NAICS codes 541512 Computer Systems Design Services 541990 All Other Professional, Scientific, and Technical Services 541511 Custom Computer Programming Services	$212,390,811	0.6%	Rank history: #42 in FY2022, #51 in FY2023 and not on the FY2024–FY2025 lists; up 8 since FY2020.
33	Hcbeck Ltd. Top NAICS codes 236220 Commercial and Institutional Building Construction	$202,632,769	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
34	DRC Emergency Services, LLC Top NAICS codes 624230 Emergency and Other Relief Services	$200,869,750	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
35	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	$170,874,418	0.5%	Rank history: #36 in FY2022, #40 in FY2023, #27 in FY2024 and #41 in FY2025; down 7 since FY2020.
36	Vera Institute of Justice, Inc. Top NAICS codes 541110 Offices of Lawyers 541199 All Other Legal Services	$159,021,182	0.4%	Rank history: #38 in FY2022, #21 in FY2023 and not on the FY2024–FY2025 lists; up 53 since FY2020.
37	Serco North America (Holdings) Inc 2 awardees, including Serco Inc. Top NAICS codes 541512 Computer Systems Design Services	$154,814,164	0.4%	Rank history: #26 in FY2022, #36 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2020.
38	Carahsoft Technology Corp Top NAICS codes 511210 Software Publishers 334111 Electronic Computer Manufacturing 541519 Other Computer Related Services	$151,541,305	0.4%	Rank history: #35 in FY2022, #16 in FY2023, #13 in FY2024 and #10 in FY2025; up 6 since FY2020.
39	Sapient Corporation 3 awardees, including Sapient Government Services, Inc., Plowshare Group, Inc. and Onpoint Consulting, Inc. Top NAICS codes 541810 Advertising Agencies 541511 Custom Computer Programming Services 541611 Administrative Management and General Management Consulting Services	$149,662,518	0.4%	Rank history: #40 in FY2022, #32 in FY2023, #71 in FY2024 and not on the FY2025 list; up 12 since FY2020.
40	Accenture Federal Services LLC 2 awardees, including Avanade Inc. Top NAICS codes 541512 Computer Systems Design Services 541611 Administrative Management and General Management Consulting Services 541519 Other Computer Related Services	$145,858,739	0.4%	Rank history: #34 in FY2022, #48 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2020.
41	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 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$145,574,476	0.4%	Rank history: #41 in FY2022, #37 in FY2023, #40 in FY2024 and #36 in FY2025; up 22 since FY2020.
42	Semanticbits LLC Top NAICS codes 541519 Other Computer Related Services	$140,535,490	0.4%	Rank history: #51 in FY2022, #91 in FY2023 and not on the FY2024–FY2025 lists; up 36 since FY2020.
43	Thermo Electron Corporation 30 awardees, including Remel Inc., Fisher Bioservices Inc. and Life Technologies Corporation Top NAICS codes 325413 In-Vitro Diagnostic Substance Manufacturing 334516 Analytical Laboratory Instrument Manufacturing 339113 Surgical Appliance and Supplies Manufacturing	$139,069,025	0.4%	Rank history: #46 in FY2022 and not on the FY2023–FY2025 lists; down 32 since FY2020.
44	Leidos Biomedical Research Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 561210 Facilities Support Services	$137,048,048	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
45	ACE Info Solutions LLC 2 awardees, including Dovel Technologies LLC Top NAICS codes 541512 Computer Systems Design Services	$133,611,127	0.4%	Rank history: #53 in FY2022 and not on the FY2023–FY2025 lists; up 75 since FY2020.
46	Ventech Solutions Inc. 2 awardees Top NAICS codes 541512 Computer Systems Design Services	$126,923,961	0.3%	Rank history: #50 in FY2022, #72 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2020.
47	American Canyon Solutions Inc. Top NAICS codes 624230 Emergency and Other Relief Services	$121,454,448	0.3%	Rank history: not on the FY2022–FY2025 lists; up 196 since FY2020.
48	Guidehouse Inc. 2 awardees Top NAICS codes 541511 Custom Computer Programming Services 541611 Administrative Management and General Management Consulting Services 541990 All Other Professional, Scientific, and Technical Services	$119,075,398	0.3%	Rank history: #66 in FY2022, #34 in FY2023 and not on the FY2024–FY2025 lists; up 25 since FY2020.
49	Northrop Grumman Corporation 4 awardees, including Northrop Grumman Systems Corporation Top NAICS codes 541512 Computer Systems Design Services 541690 Other Scientific and Technical Consulting Services 541519 Other Computer Related Services	$118,975,940	0.3%	Rank history: not on the FY2022–FY2025 lists; up 31 since FY2020.
50	Retractable Technologies Inc. Top NAICS codes 339112 Surgical and Medical Instrument Manufacturing 325414 Biological Product (except Diagnostic) Manufacturing	$114,915,976	0.3%	Rank history: not on the FY2022–FY2025 lists; up 26 since FY2020.
51	Siga Technologies, Inc. Top NAICS codes 541714 Research and Development in Biotechnology (except Nanobiotechnology)	$112,567,056	0.3%	Rank history: not on the FY2022 list, #50 in FY2023, #51 in FY2024 and #83 in FY2025; up 16 since FY2020.
52	CGI Technologies and Solutions Inc. Through CGI Federal Inc. Top NAICS codes 541512 Computer Systems Design Services 541519 Other Computer Related Services 511210 Software Publishers	$111,870,524	0.3%	Rank history: #68 in FY2022, #76 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2020.
53	Acumen LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services 541690 Other Scientific and Technical Consulting Services	$108,664,782	0.3%	Rank history: #64 in FY2022, #63 in FY2023, #53 in FY2024 and #54 in FY2025; up 16 since FY2020.
54	Merck & Co. Inc. 3 awardees, including Merck Sharp & Dohme LLC and Biomark LLC Top NAICS codes 325414 Biological Product (except Diagnostic) Manufacturing 493120 Refrigerated Warehousing and Storage 334516 Analytical Laboratory Instrument Manufacturing	$106,378,089	0.3%	Rank history: not on the FY2022–FY2025 lists; up 107 since FY2020.
55	Cencora, Inc. 7 awardees, including Amerisourcebergen Drug Corp, ASD Specialty Healthcare, LLC and World Courier Inc. Top NAICS codes 493120 Refrigerated Warehousing and Storage 325412 Pharmaceutical Preparation Manufacturing 492110 Couriers and Express Delivery Services	$105,989,126	0.3%	Rank history: not on the FY2022–FY2025 lists; up 60 since FY2020.
56	Tista Science and Technology Corporation Top NAICS codes 541512 Computer Systems Design Services	$104,864,090	0.3%	Rank history: #57 in FY2022, #66 in FY2023, #98 in FY2024 and not on the FY2025 list; up 6 since FY2020.
57	SRA International Inc. Through General Dynamics Information Technology, Inc. Top NAICS codes 541512 Computer Systems Design Services 541330 Engineering Services 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$104,493,221	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
58	Southwest Key Programs Inc. Top NAICS codes 624230 Emergency and Other Relief Services	$102,129,154	0.3%	Rank history: not on the FY2022–FY2025 lists; up 334 since FY2020.
59	The Boston Consulting Group Inc 2 awardees, including BCG Federal Corp. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$101,348,922	0.3%	Rank history: not on the FY2022–FY2025 lists; up 35 since FY2020.
60	HP Enterprise Services LLC 6 awardees, including Peraton Enterprise Solutions LLC, Peraton Inc. and Gainwell Technologies LLC Top NAICS codes 541512 Computer Systems Design Services 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services 541511 Custom Computer Programming Services	$100,667,583	0.3%	Rank history: #23 in FY2022, #15 in FY2023, #47 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
61	Technical Resources International, Inc. Top NAICS codes 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) 541711 Research and Development in Biotechnology	$100,253,089	0.3%	Rank history: #85 in FY2022, #10 in FY2023, #86 in FY2024 and #73 in FY2025; down 11 since FY2020.
62	Life Science Logistics LLC Top NAICS codes 493110 General Warehousing and Storage 493120 Refrigerated Warehousing and Storage	$99,826,570	0.3%	Rank history: #37 in FY2022, #95 in FY2023 and not on the FY2024–FY2025 lists; up 41 since FY2020.
63	Laboratory Corporation of America Holdings 12 awardees, including Laboratory Corporation of America, Monogram Biosciences, Inc. and Medtox Diagnostics, Inc. Top NAICS codes 621511 Medical Laboratories 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 334515 Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals	$95,665,977	0.3%	Rank history: #48 in FY2022 and not on the FY2023–FY2025 lists; up 372 since FY2020.
64	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	$95,538,646	0.3%	Rank history: #63 in FY2022, #89 in FY2023 and not on the FY2024–FY2025 lists; up 18 since FY2020.
65	Bavarian Nordic A / S Top NAICS codes 325412 Pharmaceutical Preparation Manufacturing	$95,497,600	0.3%	Rank history: #18 in FY2022, #56 in FY2023, #26 in FY2024 and #28 in FY2025; down 1 since FY2020.
66	Wisconsin Physicians Service Insurance Corp. Top NAICS codes 524114 Direct Health and Medical Insurance Carriers	$94,990,629	0.3%	Rank history: #61 in FY2022, not on the FY2023 list, #52 in FY2024 and #39 in FY2025; down 9 since FY2020.
67	NTT Data Fedhealth, Inc. Top NAICS codes 541512 Computer Systems Design Services 541519 Other Computer Related Services 541990 All Other Professional, Scientific, and Technical Services	$94,561,152	0.3%	Rank history: #71 in FY2022 and not on the FY2023–FY2025 lists; down 8 since FY2020.
68	LOS Angeles County Fair Association Top NAICS codes 624230 Emergency and Other Relief Services	$93,225,420	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
69	Seqirus USA Inc. 2 awardees, including Seqirus Inc. Top NAICS codes 236210 Industrial Building Construction 325412 Pharmaceutical Preparation Manufacturing 325414 Biological Product (except Diagnostic) Manufacturing	$90,524,492	0.2%	Rank history: #60 in FY2022, #82 in FY2023 and not on the FY2024–FY2025 lists; up 23 since FY2020.
70	Rei Systems, Inc. Top NAICS codes 541511 Custom Computer Programming Services 541519 Other Computer Related Services	$89,393,720	0.2%	Rank history: not on the FY2022–FY2023 lists, #79 in FY2024 and #55 in FY2025; up 93 since FY2020.
71	Danaher Corporation 25 awardees, including Cepheid, AB Sciex LLC and Leica Microsystems Inc. Top NAICS codes 334516 Analytical Laboratory Instrument Manufacturing 541714 Research and Development in Biotechnology (except Nanobiotechnology) 811219 Other Electronic and Precision Equipment Repair and Maintenance	$87,119,153	0.2%	Rank history: #83 in FY2022, #49 in FY2023 and not on the FY2024–FY2025 lists; up 47 since FY2020.
72	Verizon Communications Inc. 5 awardees, including Verizon Business Network Services LLC, Verizon Federal Inc. and Cellco Partnership Top NAICS codes 517110 Wired Telecommunications Carriers 517919 All Other Telecommunications 541519 Other Computer Related Services	$84,963,783	0.2%	Rank history: #75 in FY2022, #84 in FY2023 and not on the FY2024–FY2025 lists; up 16 since FY2020.
73	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	$84,138,237	0.2%	Rank history: #74 in FY2022, #68 in FY2023, #56 in FY2024 and #47 in FY2025; up 8 since FY2020.
74	Dell Federal Systems L.P. 2 awardees, including Dell Marketing L.P. Top NAICS codes 511210 Software Publishers 541519 Other Computer Related Services 334111 Electronic Computer Manufacturing	$81,330,093	0.2%	Rank history: #56 in FY2022, #46 in FY2023 and not on the FY2024–FY2025 lists; up 62 since FY2020.
75	Highpoint Global, LLC Through Highpoint Digital, Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541512 Computer Systems Design Services 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services	$78,194,967	0.2%	Rank history: not on the FY2022–FY2025 lists; up 9 since FY2020.
76	I3 Federal LLC Top NAICS codes 541519 Other Computer Related Services	$78,138,598	0.2%	Rank history: #58 in FY2022, #44 in FY2023 and not on the FY2024–FY2025 lists; up 212 since FY2020.
77	Cognosante Holdings, LLC 2 awardees, including Cognosante, LLC and Cognosante MVH LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541511 Custom Computer Programming Services	$77,879,885	0.2%	Rank history: #91 in FY2022, #88 in FY2023, #62 in FY2024 and not on the FY2025 list; up 214 since FY2020.
78	General Dynamics Information Technology, Inc. Top NAICS codes 541330 Engineering Services 541512 Computer Systems Design Services 541613 Marketing Consulting Services	$76,617,923	0.2%	Rank history: #16 in FY2022, #78 in FY2023 and not on the FY2024–FY2025 lists; down 13 since FY2020.
79	Tanaq Support Services, LLC Top NAICS codes 561990 All Other Support Services 541990 All Other Professional, Scientific, and Technical Services 541519 Other Computer Related Services	$75,296,458	0.2%	Rank history: #97 in FY2022 and not on the FY2023–FY2025 lists; up 229 since FY2020.
80	Thundercat Technology, LLC Top NAICS codes 541519 Other Computer Related Services 334111 Electronic Computer Manufacturing 511210 Software Publishers	$75,221,115	0.2%	Rank history: not on the FY2022–FY2025 lists; up 96 since FY2020.
81	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 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services	$75,042,989	0.2%	Rank history: not on the FY2022 list, #70 in FY2023, #95 in FY2024 and not on the FY2025 list; up 61 since FY2020.
82	Henry Schein, Inc. 5 awardees, including Henry Schein Practice Solutions Inc. and North American Rescue, LLC Top NAICS codes 493110 General Warehousing and Storage 339114 Dental Equipment and Supplies Manufacturing 423450 Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers	$74,669,176	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
83	Deployed Services, LLC Top NAICS codes 624110 Child and Youth Services	$73,804,663	0.2%	Rank history: #49 in FY2022, #28 in FY2023, #38 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
84	Battelle Memorial Institute 4 awardees Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541711 Research and Development in Biotechnology 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$72,731,925	0.2%	Rank history: not on the FY2022 list, #99 in FY2023, #93 in FY2024 and #48 in FY2025; down 18 since FY2020.
85	Axle Informatics, LLC Top NAICS codes 541519 Other Computer Related Services 541990 All Other Professional, Scientific, and Technical Services 541690 Other Scientific and Technical Consulting Services	$72,362,511	0.2%	Rank history: #59 in FY2022, #42 in FY2023, #45 in FY2024 and #26 in FY2025; up 61 since FY2020.
86	Teamstaff Inc. 2 awardees, including Social & Scientific Systems, Inc. and Danya International LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services 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)	$71,203,653	0.2%	Rank history: #89 in FY2022, #57 in FY2023, #46 in FY2024 and #31 in FY2025; up 5 since FY2020.
87	Newwave Telecom and Technologies, Inc. Top NAICS codes 541512 Computer Systems Design Services 511210 Software Publishers	$70,442,376	0.2%	Rank history: not on the FY2022–FY2025 lists; down 12 since FY2020.
88	CVS Health Corporation 3 awardees, including Minuteclinic, L.L.C., CVS Healthspire Payor & Life Sciences LLC and Coram LLC Top NAICS codes 621511 Medical Laboratories 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services 621610 Home Health Care Services	$69,268,259	0.2%	Rank history: #14 in FY2022, #55 in FY2023 and not on the FY2024–FY2025 lists; up 71 since FY2020.
89	Softrams LLC Top NAICS codes 541511 Custom Computer Programming Services 541512 Computer Systems Design Services	$68,852,707	0.2%	Rank history: #87 in FY2022, #62 in FY2023, #39 in FY2024 and not on the FY2025 list; up 21 since FY2020.
90	Quality Health Strategies Inc. Through Qlarant Integrity Solutions LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$67,936,739	0.2%	Rank history: #90 in FY2022 and not on the FY2023–FY2025 lists; up 6 since FY2020.
91	Government of the United States 19 awardees, including DLA Troop Support, Bakersfield American Indian Health Project and GSA Financial and Payroll Service Top NAICS codes 325412 Pharmaceutical Preparation Manufacturing 339113 Surgical Appliance and Supplies Manufacturing 622110 General Medical and Surgical Hospitals	$67,600,823	0.2%	Rank history: #76 in FY2022, #64 in FY2023, #64 in FY2024 and #40 in FY2025; down 12 since FY2020.
92	Securitas AB 2 awardees, including Paragon Systems Inc. and Securitas Critical Infrastructure Services, Inc. Top NAICS codes 561612 Security Guards and Patrol Services 541612 Human Resources Consulting Services	$67,577,414	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
93	The Broad Institute, Inc. Top NAICS codes 621511 Medical Laboratories 541380 Testing Laboratories and Services 541990 All Other Professional, Scientific, and Technical Services	$66,706,246	0.2%	Rank history: not on the FY2022–FY2025 lists; up 57 since FY2020.
94	Sbcs Corporation Top NAICS codes 624230 Emergency and Other Relief Services	$64,960,000	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
95	Dlh, LLC Top NAICS codes 541512 Computer Systems Design Services 541513 Computer Facilities Management Services 541330 Engineering Services	$64,099,320	0.2%	Rank history: #81 in FY2022 and not on the FY2023–FY2025 lists; up 52 since FY2020.
96	Reli Group Inc. Top NAICS codes 541512 Computer Systems Design Services 541990 All Other Professional, Scientific, and Technical Services 541611 Administrative Management and General Management Consulting Services	$63,845,584	0.2%	Rank history: #92 in FY2022, not on the FY2023–FY2024 lists and #70 in FY2025; up 5 since FY2020.
97	International Business Machines Corporation 5 awardees Top NAICS codes 541511 Custom Computer Programming Services 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services 541690 Other Scientific and Technical Consulting Services	$63,500,681	0.2%	Rank history: not on the FY2022–FY2025 lists; down 7 since FY2020.
98	Perspecta Inc. Through Peraton Enterprise Solutions LLC Top NAICS codes 541512 Computer Systems Design Services 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services	$62,962,489	0.2%	Rank history: not on the FY2022–FY2025 lists; down 63 since FY2020.
99	Sparksoft Corporation Top NAICS codes 541512 Computer Systems Design Services 541519 Other Computer Related Services 541990 All Other Professional, Scientific, and Technical Services	$62,882,082	0.2%	Rank history: #80 in FY2022, #65 in FY2023 and not on the FY2024–FY2025 lists; up 10 since FY2020.
100	Cardinal Health, Inc. 6 awardees, including Cardinal Health 200, LLC, Cardinal Health 127 Inc. and Cardinal Health 414, LLC Top NAICS codes 493110 General Warehousing and Storage 325412 Pharmaceutical Preparation Manufacturing 541990 All Other Professional, Scientific, and Technical Services	$62,678,156	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.

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 $37.3 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 2021 ran Oct 1, 2020 – Sep 30, 2021. 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 FY2020. "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 FY2020 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.

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