Top 100 Contractors in NAICS 621511: Medical Laboratories, FY2022

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Walgreen Co. Top agencies HHS (Department of Health and Human Services) EPA (Environmental Protection Agency)	$741,723,200	21.4%	Rank history: #1 in FY2021 and not on the FY2023–FY2025 lists; unchanged since FY2021.
2	CVS Health Corporation 2 awardees, including Minuteclinic, L.L.C. Top agencies HHS (Department of Health and Human Services) EOP (Executive Office of the President) EPA (Environmental Protection Agency)	$185,288,804	5.3%	Rank history: #7 in FY2021, #19 in FY2023 and not on the FY2024–FY2025 lists; up 5 since FY2021.
3	Laboratory Corporation of America Holdings 7 awardees, including Laboratory Corporation of America and Center for Disease Detection, LLC Top agencies HHS (Department of Health and Human Services) Army (Department of the Army) DHA (Defense Health Agency)	$181,337,529	5.2%	Rank history: #4 in FY2021, #4 in FY2023, #51 in FY2024 and #35 in FY2025; up 1 since FY2021.
4	Quest Diagnostics Incorporated 11 awardees, including Quest Diagnostics Nichols Institute, Quest Diagnostics Clinical Laboratories, Inc. and Quest Diagnostics of Puerto Rico Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DOJ (Department of Justice)	$144,911,894	4.2%	Rank history: #5 in FY2021, #1 in FY2023, #2 in FY2024 and #2 in FY2025; up 1 since FY2021.
5	Rite Aid Corporation Through Rite Aid Hdqtrs. Corp. Top agencies HHS (Department of Health and Human Services)	$138,179,570	4.0%	Rank history: #2 in FY2021, #14 in FY2023 and not on the FY2024–FY2025 lists; down 3 since FY2021.
6	Helix Opco LLC Top agencies HHS (Department of Health and Human Services)	$51,352,663	1.5%	Rank history: #15 in FY2021, #3 in FY2023 and not on the FY2024–FY2025 lists; up 9 since FY2021.
7	E3Health Solutions, LLC Top agencies HHS (Department of Health and Human Services)	$31,371,056	0.9%	Rank history: #3 in FY2021 and not on the FY2023–FY2025 lists; down 4 since FY2021.
8	Laboratory Corporation of America 2 awardees Top agencies HHS (Department of Health and Human Services) DHS (Department of Homeland Security) VA (Department of Veterans Affairs)	$28,367,120	0.8%	Rank history: #14 in FY2021, #2 in FY2023, #1 in FY2024 and #1 in FY2025; up 6 since FY2021.
9	Roche Holding AG 2 awardees, including Foundation Medicine, Inc. Top agencies VA (Department of Veterans Affairs)	$22,949,826	0.7%	Rank history: #13 in FY2021 and not on the FY2023–FY2025 lists; up 4 since FY2021.
10	Nexelis Group Inc. Through Laboratories Nexelis Canada Inc. Top agencies HHS (Department of Health and Human Services)	$14,625,365	0.4%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
11	SNA International LLC Top agencies WHS (DOD Washington Headquarters Service)	$12,903,968	0.4%	Rank history: not on the FY2021 list, #6 in FY2023, #4 in FY2024 and #4 in FY2025; new.
12	Aegis Sciences Corporation 2 awardees Top agencies HHS (Department of Health and Human Services)	$11,999,700	0.3%	Rank history: #8 in FY2021 and not on the FY2023–FY2025 lists; down 4 since FY2021.
13	Everthingwellness LLC Top agencies Treasury (Department of the Treasury)	$11,502,332	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
14	Loyal Source Government Services LLC Top agencies USAF (Department of the Air Force)	$10,639,010	0.3%	Rank history: #16 in FY2021, #9 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2021.
15	The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc. Top agencies Army (Department of the Army)	$8,991,855	0.3%	Rank history: #24 in FY2021, #8 in FY2023, #8 in FY2024 and #5 in FY2025; up 9 since FY2021.
16	University of Utah 2 awardees, including Arup Laboratories Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$8,721,282	0.3%	Rank history: #23 in FY2021, #10 in FY2023, #36 in FY2024 and not on the FY2025 list; up 7 since FY2021.
17	Abbott Laboratories 6 awardees, including Pembrooke Occupational Health, Inc., Alere Toxicology Services, Inc. and Redwood Toxicology Laboratory, Inc. Top agencies OSD (Office of the Secretary of Defense) DOI (Department of the Interior) DOJ (Department of Justice)	$7,857,467	0.2%	Rank history: #29 in FY2021, #12 in FY2023 and not on the FY2024–FY2025 lists; up 12 since FY2021.
18	MCI Diagnostic Center LLC Top agencies DOL (Department of Labor) Army (Department of the Army) USAF (Department of the Air Force)	$7,155,362	0.2%	Rank history: #27 in FY2021 and not on the FY2023–FY2025 lists; up 9 since FY2021.
19	Fulgent Genetics, Inc. Through Fulgent Therapeutics LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$6,665,590	0.2%	Rank history: #10 in FY2021, #26 in FY2023, #9 in FY2024 and #9 in FY2025; down 9 since FY2021.
20	Mayo Clinic Through Mayo Collaborative Services, Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$5,836,062	0.2%	Rank history: #19 in FY2021, #11 in FY2023, #13 in FY2024 and not on the FY2025 list; down 1 since FY2021.
21	Tempus AI, Inc. Top agencies VA (Department of Veterans Affairs)	$4,323,270	0.1%	Rank history: not on the FY2021 list, #30 in FY2023, #6 in FY2024 and #12 in FY2025; new.
22	Quest Diagnostics Nichols Institute Top agencies HHS (Department of Health and Human Services)	$4,150,550	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
23	Creative Testing Solutions Top agencies Army (Department of the Army) DHA (Defense Health Agency)	$3,627,187	0.1%	Rank history: #46 in FY2021, #34 in FY2023, #22 in FY2024 and #17 in FY2025; up 23 since FY2021.
24	Seoul Clinical Laboratories Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$3,209,210	0.1%	Rank history: #25 in FY2021 and not on the FY2023–FY2025 lists; up 1 since FY2021.
25	Northern Plains Laboratory LLC Top agencies HHS (Department of Health and Human Services) Army (Department of the Army)	$3,118,009	0.1%	Rank history: #33 in FY2021, #15 in FY2023, #14 in FY2024 and #13 in FY2025; up 8 since FY2021.
26	Acadian Ambulance Service Inc. Top agencies DHS (Department of Homeland Security)	$3,067,603	0.1%	Rank history: #32 in FY2021 and not on the FY2023–FY2025 lists; up 6 since FY2021.
27	University of Washington 2 awardees Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$3,029,992	0.1%	Rank history: #39 in FY2021 and not on the FY2023–FY2025 lists; up 12 since FY2021.
28	Natera Inc. Top agencies VA (Department of Veterans Affairs)	$2,807,616	0.1%	Rank history: not on the FY2021 list, #78 in FY2023, #68 in FY2024 and not on the FY2025 list; up 300 since FY2021.
29	Yale Univ Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$2,465,573	0.1%	Rank history: not on the FY2021 list, #83 in FY2023, #81 in FY2024 and #66 in FY2025; up 83 since FY2021.
30	Research Triangle Institute Top agencies HHS (Department of Health and Human Services)	$2,448,076	0.1%	Rank history: not on the FY2021 list, #17 in FY2023, #56 in FY2024 and #70 in FY2025; new.
31	ST. John Health System, Inc. Through Regional Medical Laboratory, Inc. Top agencies HHS (Department of Health and Human Services)	$2,243,320	0.1%	Rank history: #36 in FY2021, #89 in FY2023 and not on the FY2024–FY2025 lists; up 5 since FY2021.
32	State of California Controllers Office 11 awardees, including California Department of Public Health, Ucla Department of Pathology & Laboratory Medicine and University of California, LOS Angeles Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) Commerce (Department of Commerce)	$2,163,019	0.1%	Rank history: #40 in FY2021, #35 in FY2023, #34 in FY2024 and not on the FY2025 list; up 8 since FY2021.
33	Foundation Medicine, Inc. Top agencies VA (Department of Veterans Affairs)	$1,973,596	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 389 since FY2021.
34	Labstat International Inc. Top agencies HHS (Department of Health and Human Services)	$1,917,108	0.1%	Rank history: not on the FY2021 list, #82 in FY2023, #54 in FY2024 and not on the FY2025 list; new.
35	Banner Health Through Sonora Quest Laboratories LLC Top agencies HHS (Department of Health and Human Services)	$1,910,346	0.1%	Rank history: #28 in FY2021, #22 in FY2023 and not on the FY2024–FY2025 lists; down 7 since FY2021.
36	University of Texas System 3 awardees, including The University of Texas Health Science Center At San Antonio, The University of Texas Southwestern Medical Center and The University of Texas Health Science Center At Tyler Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$1,595,775	<0.1%	Rank history: not on the FY2021 list, #81 in FY2023, #29 in FY2024 and not on the FY2025 list; up 83 since FY2021.
37	Ihrc, Incorporated Top agencies HHS (Department of Health and Human Services)	$1,558,281	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
38	University of Pittsburgh Medical Center 2 awardees, including Upmc Presbyterian Shadyside Top agencies VA (Department of Veterans Affairs)	$1,494,023	<0.1%	Rank history: #41 in FY2021, #36 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2021.
39	The Leland Stanford Junior University 2 awardees, including Stanford Hospital & Clinics Top agencies VA (Department of Veterans Affairs)	$1,485,219	<0.1%	Rank history: #42 in FY2021, #88 in FY2023, #31 in FY2024 and not on the FY2025 list; up 3 since FY2021.
40	Caredx, Inc. 2 awardees, including Caredx Lab Solutions Inc. Top agencies VA (Department of Veterans Affairs)	$1,467,291	<0.1%	Rank history: not on the FY2021 list, #24 in FY2023, #52 in FY2024 and #15 in FY2025; up 159 since FY2021.
41	Cerba Research USA Inc. Top agencies HHS (Department of Health and Human Services)	$1,382,498	<0.1%	Rank history: not on the FY2021 list, #56 in FY2023 and not on the FY2024–FY2025 lists; new.
42	Physicians Laboratory, P.C. Top agencies VA (Department of Veterans Affairs)	$1,358,924	<0.1%	Rank history: not on the FY2021 list, #50 in FY2023, #50 in FY2024 and #41 in FY2025; new.
43	Biobridge Global Through Qualtex Laboratories Top agencies Army (Department of the Army)	$1,321,166	<0.1%	Rank history: #43 in FY2021, #31 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2021.
44	Oregon Health & Science University Top agencies VA (Department of Veterans Affairs)	$1,320,175	<0.1%	Rank history: #30 in FY2021, #25 in FY2023, #20 in FY2024 and #18 in FY2025; down 14 since FY2021.
45	Vanderbelt University Medical Center Through Vanderbilt University Medical Center Top agencies VA (Department of Veterans Affairs)	$1,289,428	<0.1%	Rank history: #61 in FY2021, #37 in FY2023, #48 in FY2024 and not on the FY2025 list; up 16 since FY2021.
46	Appddictionstudio Limited Liability Company Top agencies USAF (Department of the Air Force)	$1,279,416	<0.1%	Rank history: #49 in FY2021, #32 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2021.
47	Exact Sciences Corporation 2 awardees, including Genomic Health, Inc. Top agencies DHA (Defense Health Agency) Army (Department of the Army) USAF (Department of the Air Force)	$1,247,984	<0.1%	Rank history: #20 in FY2021, #20 in FY2023, #21 in FY2024 and #23 in FY2025; down 27 since FY2021.
48	Mirimus, Inc. Top agencies HHS (Department of Health and Human Services)	$1,167,000	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
49	Bml, Inc. Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency) Navy (Department of the Navy)	$1,075,004	<0.1%	Rank history: #31 in FY2021, not on the FY2023–FY2024 lists and #90 in FY2025; down 18 since FY2021.
50	Oklahoma Blood Institute Top agencies VA (Department of Veterans Affairs)	$1,062,068	<0.1%	Rank history: #54 in FY2021, #43 in FY2023 and not on the FY2024–FY2025 lists; up 4 since FY2021.
51	Genscript USA Inc. Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$1,037,225	<0.1%	Rank history: #56 in FY2021, #47 in FY2023, #42 in FY2024 and #45 in FY2025; up 5 since FY2021.
52	Sonic Healthcare Limited 5 awardees, including Cytopath Biopsy Lab Inc., Bioscientia Institut FÜR Medizinische Diagnostik GMBH and Propath Services, LLC Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) Army (Department of the Army)	$973,857	<0.1%	Rank history: #55 in FY2021, #33 in FY2023, #79 in FY2024 and not on the FY2025 list; up 3 since FY2021.
53	Incyte Pathology, P.S Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$960,774	<0.1%	Rank history: not on the FY2021 list, #51 in FY2023, #86 in FY2024 and #65 in FY2025; up 70 since FY2021.
54	Bestica, Inc. Top agencies USAF (Department of the Air Force)	$907,328	<0.1%	Rank history: #57 in FY2021, #41 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2021.
55	Neogenomics Laboratories, Inc. Top agencies VA (Department of Veterans Affairs)	$899,115	<0.1%	Rank history: #50 in FY2021, #18 in FY2023 and not on the FY2024–FY2025 lists; down 5 since FY2021.
56	Miraca Holdings Inc. Through Srl, Inc. Top agencies USAF (Department of the Air Force)	$864,525	<0.1%	Rank history: #17 in FY2021 and not on the FY2023–FY2025 lists; down 39 since FY2021.
57	STG Korea Inc Top agencies Army (Department of the Army)	$850,310	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
58	Danaher Corporation 3 awardees, including Beckman Coulter Gesellschaft MIT Beschraenkter Haftung, Cepheid and Beckman Coulter, Inc. Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$840,874	<0.1%	Rank history: #35 in FY2021, #29 in FY2023, #35 in FY2024 and #40 in FY2025; down 23 since FY2021.
59	Preventiongenetics LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$840,800	<0.1%	Rank history: #38 in FY2021, #27 in FY2023 and not on the FY2024–FY2025 lists; down 21 since FY2021.
60	Transportation North Carolina Department of Through Dhhs State Public Health Lab Top agencies Army (Department of the Army) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$839,163	<0.1%	Rank history: not on the FY2021 list, #71 in FY2023 and not on the FY2024–FY2025 lists; up 46 since FY2021.
61	Dt-Trak Consulting, Inc. Top agencies HHS (Department of Health and Human Services)	$832,827	<0.1%	Rank history: #58 in FY2021 and not on the FY2023–FY2025 lists; down 3 since FY2021.
62	University of Vermont & State Agricultural College Top agencies HHS (Department of Health and Human Services)	$814,130	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
63	South Central Pathology Lab Pa Top agencies VA (Department of Veterans Affairs)	$810,057	<0.1%	Rank history: #87 in FY2021, #76 in FY2023, #70 in FY2024 and #48 in FY2025; up 24 since FY2021.
64	Bloodworks Top agencies Army (Department of the Army) VA (Department of Veterans Affairs)	$802,575	<0.1%	Rank history: #44 in FY2021, #65 in FY2023, #67 in FY2024 and #26 in FY2025; down 20 since FY2021.
65	Vitalant Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$783,665	<0.1%	Rank history: #62 in FY2021, #61 in FY2023, not on the FY2024 list and #22 in FY2025; down 3 since FY2021.
66	The American National Red Cross 2 awardees Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) HHS (Department of Health and Human Services)	$749,843	<0.1%	Rank history: #68 in FY2021, #60 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2021.
67	University of Wisconsin System 2 awardees, including University of Wisconsin Hospitals and Clinics Authority Top agencies VA (Department of Veterans Affairs)	$712,107	<0.1%	Rank history: not on the FY2021 list, #38 in FY2023, #30 in FY2024 and not on the FY2025 list; up 35 since FY2021.
68	All American Express Solutions LLC Top agencies VA (Department of Veterans Affairs)	$671,724	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
69	Brigham & Womens Hospital Inc 3 awardees, including Massachusetts General Physicians Organization, Inc. and The General Hospital Corporation Top agencies VA (Department of Veterans Affairs)	$655,384	<0.1%	Rank history: #81 in FY2021, #39 in FY2023, #47 in FY2024 and #67 in FY2025; up 12 since FY2021.
70	QPS Austria GMBH Top agencies HHS (Department of Health and Human Services)	$646,721	<0.1%	Rank history: not on the FY2021 list, #55 in FY2023 and not on the FY2024–FY2025 lists; up 57 since FY2021.
71	Peninsula Histopathology Laboratory Inc. Top agencies VA (Department of Veterans Affairs)	$639,174	<0.1%	Rank history: #86 in FY2021, #48 in FY2023, #71 in FY2024 and #68 in FY2025; up 15 since FY2021.
72	Cardionet, LLC Top agencies VA (Department of Veterans Affairs)	$638,334	<0.1%	Rank history: not on the FY2021 list, #44 in FY2023 and not on the FY2024–FY2025 lists; new.
73	South Carolina State of Through Medical University Hospital Authority Top agencies VA (Department of Veterans Affairs)	$619,705	<0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #38 in FY2024 and #62 in FY2025; new.
74	Winergy LLC Top agencies VA (Department of Veterans Affairs)	$587,569	<0.1%	Rank history: #65 in FY2021, #54 in FY2023 and not on the FY2024–FY2025 lists; down 9 since FY2021.
75	Regents of the University of Minnesota 2 awardees Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$578,521	<0.1%	Rank history: #80 in FY2021 and not on the FY2023–FY2025 lists; up 5 since FY2021.
76	Somalogic Operating Co., Inc. Top agencies HHS (Department of Health and Human Services)	$552,500	<0.1%	Rank history: #52 in FY2021, #45 in FY2023 and not on the FY2024–FY2025 lists; down 24 since FY2021.
77	Macrogen, Inc. Through Psomagen Inc. Top agencies HHS (Department of Health and Human Services)	$539,550	<0.1%	Rank history: #75 in FY2021, #16 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2021.
78	Becton, Dickinson and Co 4 awardees, including Becton, Dickinson Italia S.P.A. Top agencies HHS (Department of Health and Human Services) Army (Department of the Army) VA (Department of Veterans Affairs)	$522,275	<0.1%	Rank history: #93 in FY2021, #99 in FY2023 and not on the FY2024–FY2025 lists; up 15 since FY2021.
79	Children's National Medical Center Through Children's Hospital Top agencies HHS (Department of Health and Human Services)	$500,000	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
80	Queen'S Health Systems the Through Diagnostic Laboratory Services, Inc. Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy) DHA (Defense Health Agency)	$498,024	<0.1%	Rank history: #94 in FY2021, #57 in FY2023 and not on the FY2024–FY2025 lists; up 14 since FY2021.
81	Yale New Haven Health Services Corporation Through Yale New Haven Hospital, Inc. Top agencies VA (Department of Veterans Affairs)	$479,750	<0.1%	Rank history: not on the FY2021 list, #73 in FY2023 and not on the FY2024–FY2025 lists; up 71 since FY2021.
82	Central TOX LLC Top agencies VA (Department of Veterans Affairs)	$473,725	<0.1%	Rank history: not on the FY2021 list, #64 in FY2023, #62 in FY2024 and #63 in FY2025; new.
83	American Veteran Contracting Solutions LLC Top agencies VA (Department of Veterans Affairs)	$468,000	<0.1%	Rank history: #82 in FY2021, #79 in FY2023, #75 in FY2024 and #77 in FY2025; down 1 since FY2021.
84	Koninklijke Philips N.V. 2 awardees, including Cardionet, LLC and Lifewatch Services Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$462,206	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 91 since FY2021.
85	Veracyte, Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$458,553	<0.1%	Rank history: not on the FY2021 list, #49 in FY2023, #46 in FY2024 and #32 in FY2025; up 23 since FY2021.
86	The Association of University Physicians Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$450,000	<0.1%	Rank history: not on the FY2021 list, #90 in FY2023, not on the FY2024 list and #95 in FY2025; up 43 since FY2021.
87	Virginia Polytechnic Institute & State University Through Department of General Services Virginia Top agencies DHA (Defense Health Agency)	$447,120	<0.1%	Rank history: #74 in FY2021, #77 in FY2023, #55 in FY2024 and not on the FY2025 list; down 13 since FY2021.
88	The Chenega Corporation Through Chenega Tri-Services, LLC Top agencies DHA (Defense Health Agency)	$444,168	<0.1%	Rank history: not on the FY2021 list, #80 in FY2023 and not on the FY2024–FY2025 lists; new.
89	Marshfield Clinic Health System, Inc. 2 awardees, including Marshfield Clinic, Inc. Top agencies HHS (Department of Health and Human Services)	$441,185	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 27 since FY2021.
90	The Blood Center Top agencies USAF (Department of the Air Force)	$428,243	<0.1%	Rank history: #72 in FY2021 and not on the FY2023–FY2025 lists; down 18 since FY2021.
91	Compagnie Merieux Alliance 4 awardees, including Biofire Defense LLC, Biotheranostics Inc. and Biofire Diagnostics LLC Top agencies DOS (Department of State) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$425,789	<0.1%	Rank history: #66 in FY2021 and not on the FY2023–FY2025 lists; down 25 since FY2021.
92	Regents of the University of Michigan Top agencies VA (Department of Veterans Affairs)	$420,038	<0.1%	Rank history: #70 in FY2021, #53 in FY2023, #43 in FY2024 and #53 in FY2025; down 22 since FY2021.
93	Ambry Genetics Corporation Top agencies VA (Department of Veterans Affairs)	$419,220	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
94	Dialysis Clinic, Inc. Top agencies VA (Department of Veterans Affairs)	$419,025	<0.1%	Rank history: #77 in FY2021, #87 in FY2023, #83 in FY2024 and not on the FY2025 list; down 17 since FY2021.
95	Inform Diagnostics, Inc. Through Therapath Partners LLC Top agencies Army (Department of the Army) VA (Department of Veterans Affairs)	$406,498	<0.1%	Rank history: not on the FY2021 list, #92 in FY2023 and not on the FY2024–FY2025 lists; up 196 since FY2021.
96	Goss Service Associates LLC Top agencies VA (Department of Veterans Affairs)	$401,995	<0.1%	Rank history: not on the FY2021 list, #96 in FY2023, not on the FY2024 list and #100 in FY2025; up 9 since FY2021.
97	Indiana University Health, Inc. Top agencies VA (Department of Veterans Affairs)	$397,002	<0.1%	Rank history: #95 in FY2021, #91 in FY2023, #77 in FY2024 and #80 in FY2025; down 2 since FY2021.
98	Nephropathology Associates, PLC Top agencies VA (Department of Veterans Affairs)	$395,260	<0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #99 in FY2024 and #58 in FY2025; up 96 since FY2021.
99	CDX Diagnostics Inc. Top agencies VA (Department of Veterans Affairs)	$383,546	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 67 since FY2021.
100	Dentrust Dental International, Inc. Top agencies DHS (Department of Homeland Security)	$369,979	<0.1%	Rank history: not on the FY2021 list, #86 in FY2023, #84 in FY2024 and #99 in FY2025; new.

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 $3.47 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 2022 ran Oct 1, 2021 – Sep 30, 2022. 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 FY2021. "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 FY2021 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