Top 100 Contractors in PSC Q301: Reference Laboratory Testing, FY2023

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Laboratory Corporation of America 4 awardees, including Labcorp Oklahoma Inc. and Monogram Biosciences, Inc. Top agencies DHA (Defense Health Agency) HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$130,874,423	15.2%	Rank history: #23 in FY2021, #9 in FY2022, #1 in FY2024 and #1 in FY2025; up 8 since FY2022.
2	Quest Diagnostics Incorporated 11 awardees, including Ameripath Inc., Quest Diagnostics Nichols Institute Inc. and Athena Diagnostics, Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DOJ (Department of Justice)	$128,198,456	14.9%	Rank history: #7 in FY2021, #4 in FY2022, #2 in FY2024 and #2 in FY2025; up 2 since FY2022.
3	Helix Opco LLC Top agencies HHS (Department of Health and Human Services)	$45,485,768	5.3%	Rank history: #25 in FY2021, #7 in FY2022 and not on the FY2024–FY2025 lists; up 4 since FY2022.
4	Laboratory Corporation of America Holdings 8 awardees, including Center for Disease Detection, LLC, Laboratory Corporation of America and Labcorp Early Development Laboratories Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) HHS (Department of Health and Human Services)	$28,563,575	3.3%	Rank history: #6 in FY2021, #3 in FY2022 and not on the FY2024–FY2025 lists; down 1 since FY2022.
5	Roche Diabetes Care Inc Through Foundation Medicine, Inc. Top agencies VA (Department of Veterans Affairs)	$19,078,100	2.2%	Rank history: not on the FY2021–FY2022 lists, #4 in FY2024 and not on the FY2025 list; new.
6	MCI Diagnostic Center LLC Top agencies DOL (Department of Labor) Army (Department of the Army) VA (Department of Veterans Affairs)	$13,517,969	1.6%	Rank history: not on the FY2021–FY2022 lists, #20 in FY2024 and not on the FY2025 list; new.
7	The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc. Top agencies DHA (Defense Health Agency)	$11,068,141	1.3%	Rank history: #49 in FY2021, #23 in FY2022, #14 in FY2024 and #6 in FY2025; up 16 since FY2022.
8	Fundacion Inciensa Top agencies HHS (Department of Health and Human Services)	$11,030,693	1.3%	Rank history: #38 in FY2021, #21 in FY2022, #11 in FY2024 and #33 in FY2025; up 13 since FY2022.
9	Loyal Source Government Services LLC Top agencies USAF (Department of the Air Force)	$11,007,051	1.3%	Rank history: #31 in FY2021, #19 in FY2022 and not on the FY2024–FY2025 lists; up 10 since FY2022.
10	Alphabet Inc. Through Verily Life Sciences LLC Top agencies HHS (Department of Health and Human Services)	$10,608,000	1.2%	Rank history: not on the FY2021–FY2022 lists, #3 in FY2024 and not on the FY2025 list; new.
11	University of Utah 2 awardees, including Arup Laboratories Inc. Top agencies VA (Department of Veterans Affairs)	$10,577,358	1.2%	Rank history: #48 in FY2021, #24 in FY2022, #61 in FY2024 and not on the FY2025 list; up 13 since FY2022.
12	Abbott Laboratories 5 awardees, including Pembrooke Occupational Health, Inc., Alere Toxicology Services, Inc. and Abbott Rapid Diagnostics Informatics, Inc. Top agencies OSD (Office of the Secretary of Defense) VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$10,092,304	1.2%	Rank history: #39 in FY2021, #25 in FY2022 and not on the FY2024–FY2025 lists; up 13 since FY2022.
13	Danaher Corporation 6 awardees, including Beckman Coulter, Inc., Cepheid and Beckman Coulter K.K. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$8,376,891	1.0%	Rank history: #42 in FY2021, #26 in FY2022, #39 in FY2024 and #52 in FY2025; up 13 since FY2022.
14	Personalis, Inc. Top agencies VA (Department of Veterans Affairs)	$7,733,000	0.9%	Rank history: not on the FY2021 list, #20 in FY2022, #8 in FY2024 and #4 in FY2025; up 6 since FY2022.
15	Ansible Government Solutions LLC Top agencies VA (Department of Veterans Affairs)	$7,250,275	0.8%	Rank history: not on the FY2021 list, #29 in FY2022, #94 in FY2024 and #54 in FY2025; up 14 since FY2022.
16	Mayo Clinic 2 awardees, including Mayo Collaborative Services, Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$7,195,925	0.8%	Rank history: #44 in FY2021, #34 in FY2022, #26 in FY2024 and not on the FY2025 list; up 18 since FY2022.
17	AB Staffing Solutions LLC Top agencies HHS (Department of Health and Human Services)	$6,662,745	0.8%	Rank history: #95 in FY2021, #39 in FY2022, #16 in FY2024 and #24 in FY2025; up 22 since FY2022.
18	Infinity Biologix LLC Top agencies VA (Department of Veterans Affairs)	$6,500,000	0.8%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
19	Akesogen, Inc. Top agencies VA (Department of Veterans Affairs)	$6,400,000	0.7%	Rank history: #34 in FY2021, #14 in FY2022, #22 in FY2024 and #23 in FY2025; down 5 since FY2022.
20	The Leland Stanford Junior University 2 awardees, including Stanford Hospital & Clinics Top agencies VA (Department of Veterans Affairs)	$6,363,600	0.7%	Rank history: #88 in FY2021, #57 in FY2022, #6 in FY2024 and #12 in FY2025; up 37 since FY2022.
21	The Translational Genomics Research Institute Top agencies USDA (Department of Agriculture)	$5,340,000	0.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
22	MRIGLOBAL Top agencies HHS (Department of Health and Human Services)	$5,098,682	0.6%	Rank history: not on the FY2021–FY2022 lists, #7 in FY2024 and #7 in FY2025; new.
23	PAE Government Services Inc. Through PAE National Security Solutions LLC Top agencies DHS (Department of Homeland Security)	$4,984,269	0.6%	Rank history: #28 in FY2021, #11 in FY2022, #13 in FY2024 and not on the FY2025 list; down 12 since FY2022.
24	Macrogen, Inc. Through Psomagen Inc. Top agencies HHS (Department of Health and Human Services)	$4,949,670	0.6%	Rank history: not on the FY2021 list, #85 in FY2022 and not on the FY2024–FY2025 lists; up 61 since FY2022.
25	Rite Aid Corporation Through Rite Aid Hdqtrs. Corp. Top agencies HHS (Department of Health and Human Services)	$4,924,976	0.6%	Rank history: #2 in FY2021, #5 in FY2022 and not on the FY2024–FY2025 lists; down 20 since FY2022.
26	South Carolina State of 2 awardees, including The Medical University of South Carolina and Medical University Hospital Authority Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$4,888,406	0.6%	Rank history: #60 in FY2021, #38 in FY2022, #12 in FY2024 and #87 in FY2025; up 12 since FY2022.
27	Mologic Inc. Top agencies HHS (Department of Health and Human Services)	$4,475,450	0.5%	Rank history: #30 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
28	Northern Plains Laboratory LLC Top agencies HHS (Department of Health and Human Services) Army (Department of the Army)	$4,276,250	0.5%	Rank history: #64 in FY2021, #56 in FY2022, #25 in FY2024 and #18 in FY2025; up 28 since FY2022.
29	Ghost RX Inc. 2 awardees Top agencies VA (Department of Veterans Affairs)	$4,002,293	0.5%	Rank history: not on the FY2021 list, #62 in FY2022, #34 in FY2024 and #48 in FY2025; up 33 since FY2022.
30	State of California Controllers Office 16 awardees, including The Regents of the University of California. San Francisco, California Department of Public Health and The Regents of the University of California Top agencies HHS (Department of Health and Human Services) DHA (Defense Health Agency) VA (Department of Veterans Affairs)	$3,999,520	0.5%	Rank history: #41 in FY2021, #45 in FY2022, #62 in FY2024 and not on the FY2025 list; up 15 since FY2022.
31	Bloodworks Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$3,871,163	0.5%	Rank history: #69 in FY2021, #35 in FY2022, #43 in FY2024 and #29 in FY2025; up 4 since FY2022.
32	Neogenomics Laboratories, Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$3,783,907	0.4%	Rank history: #94 in FY2021, #84 in FY2022 and not on the FY2024–FY2025 lists; up 52 since FY2022.
33	Akahi Associates LLC Top agencies Army (Department of the Army)	$3,696,037	0.4%	Rank history: #86 in FY2021, #41 in FY2022, #15 in FY2024 and not on the FY2025 list; up 8 since FY2022.
34	Johnson & Johnson Through Ortho-Clinical Diagnostics, Inc. Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) HHS (Department of Health and Human Services)	$3,576,339	0.4%	Rank history: not on the FY2021 list, #65 in FY2022, #54 in FY2024 and not on the FY2025 list; up 31 since FY2022.
35	Jackson Laboratory Top agencies HHS (Department of Health and Human Services)	$3,145,772	0.4%	Rank history: #63 in FY2021, #48 in FY2022, #18 in FY2024 and not on the FY2025 list; up 13 since FY2022.
36	Exact Sciences Corporation 2 awardees, including Genomic Health, Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) USAF (Department of the Air Force)	$3,126,773	0.4%	Rank history: #61 in FY2021, not on the FY2022 list, #31 in FY2024 and #35 in FY2025; up 74 since FY2022.
37	CVS Health Corporation 2 awardees, including Minuteclinic, L.L.C. Top agencies EOP (Executive Office of the President)	$3,039,980	0.4%	Rank history: #9 in FY2021, #2 in FY2022 and not on the FY2024–FY2025 lists; down 35 since FY2022.
38	One Stop Recruiting LLC Top agencies VA (Department of Veterans Affairs)	$2,930,438	0.3%	Rank history: #100 in FY2021, #42 in FY2022, #35 in FY2024 and #26 in FY2025; up 4 since FY2022.
39	The Tatitlek Corporation Through Tatitlek Federal Services LLC Top agencies Army (Department of the Army)	$2,754,643	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
40	Siemens Aktiengesellschaft 2 awardees, including Siemens Healthcare Diagnostics Inc. and Petnet Solutions, Inc. Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) DHA (Defense Health Agency)	$2,704,303	0.3%	Rank history: #85 in FY2021, #46 in FY2022, #48 in FY2024 and not on the FY2025 list; up 6 since FY2022.
41	Banner Health 2 awardees, including Sonora Quest Laboratories LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$2,625,310	0.3%	Rank history: #53 in FY2021, #70 in FY2022 and not on the FY2024–FY2025 lists; up 29 since FY2022.
42	Matrix Providers Inc. 2 awardees Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$2,268,096	0.3%	Rank history: #80 in FY2021, #64 in FY2022, #53 in FY2024 and not on the FY2025 list; up 22 since FY2022.
43	Vanderbelt University Medical Center Through Vanderbilt University Medical Center Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$2,216,632	0.3%	Rank history: not on the FY2021 list, #82 in FY2022, #46 in FY2024 and not on the FY2025 list; up 39 since FY2022.
44	Oregon Health & Science University Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$2,191,821	0.3%	Rank history: #56 in FY2021, #83 in FY2022, #36 in FY2024 and #25 in FY2025; up 39 since FY2022.
45	Fulgent Genetics, Inc. Through Fulgent Therapeutics LLC Top agencies VA (Department of Veterans Affairs)	$2,166,760	0.3%	Rank history: #12 in FY2021, #31 in FY2022, #17 in FY2024 and #11 in FY2025; down 14 since FY2022.
46	Preventiongenetics LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$2,104,783	0.2%	Rank history: #79 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 73 since FY2022.
47	The American National Red Cross 2 awardees Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$2,100,107	0.2%	Rank history: #78 in FY2021, #67 in FY2022, #92 in FY2024 and not on the FY2025 list; up 20 since FY2022.
48	Roche Holding AG 2 awardees, including Roche Diagnostics Corporation Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$2,092,718	0.2%	Rank history: #14 in FY2021, #6 in FY2022, #37 in FY2024 and not on the FY2025 list; down 42 since FY2022.
49	Rapid Temps, LLC Top agencies HHS (Department of Health and Human Services)	$2,055,043	0.2%	Rank history: #82 in FY2021, #90 in FY2022, #86 in FY2024 and #55 in FY2025; up 41 since FY2022.
50	Meso Scale Diagnostics LLC Top agencies DHS (Department of Homeland Security)	$1,992,083	0.2%	Rank history: #76 in FY2021, #92 in FY2022 and not on the FY2024–FY2025 lists; up 42 since FY2022.
51	Genscript USA Inc. Top agencies HHS (Department of Health and Human Services)	$1,986,167	0.2%	Rank history: #71 in FY2021, #72 in FY2022, not on the FY2024 list and #96 in FY2025; up 21 since FY2022.
52	Labcorp Oklahoma Inc. Top agencies HHS (Department of Health and Human Services)	$1,960,481	0.2%	Rank history: not on the FY2021–FY2022 lists, #51 in FY2024 and #32 in FY2025; new.
53	Eagle Integrated Services, LLC Top agencies Navy (Department of the Navy)	$1,905,000	0.2%	Rank history: not on the FY2021–FY2022 lists, #42 in FY2024 and #46 in FY2025; new.
54	Transnetyx, Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$1,904,463	0.2%	Rank history: #77 in FY2021, #73 in FY2022 and not on the FY2024–FY2025 lists; up 19 since FY2022.
55	Tempus AI, Inc. Top agencies VA (Department of Veterans Affairs)	$1,887,322	0.2%	Rank history: not on the FY2021 list, #37 in FY2022, #5 in FY2024 and #16 in FY2025; down 18 since FY2022.
56	Sysmex Corporation Through Sysmex America, Inc. Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) DHA (Defense Health Agency)	$1,866,094	0.2%	Rank history: #83 in FY2021, #52 in FY2022, #89 in FY2024 and not on the FY2025 list; down 4 since FY2022.
57	X-Chem, Inc. Top agencies HHS (Department of Health and Human Services)	$1,785,000	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
58	Baylor College of Medicine Top agencies HHS (Department of Health and Human Services)	$1,710,477	0.2%	Rank history: #65 in FY2021, #75 in FY2022, not on the FY2024 list and #20 in FY2025; up 17 since FY2022.
59	DNA Labs International Inc Top agencies DOJ (Department of Justice)	$1,508,545	0.2%	Rank history: not on the FY2021 list, #89 in FY2022, #41 in FY2024 and #53 in FY2025; up 30 since FY2022.
60	Somalogic Operating Co., Inc. Top agencies HHS (Department of Health and Human Services)	$1,488,825	0.2%	Rank history: #92 in FY2021, #100 in FY2022 and not on the FY2024–FY2025 lists; up 40 since FY2022.
61	Nationwide Children'S Hospital Through Research Institute At Nationwide Children's Hospital Top agencies HHS (Department of Health and Human Services)	$1,484,008	0.2%	Rank history: #59 in FY2021, #49 in FY2022 and not on the FY2024–FY2025 lists; down 12 since FY2022.
62	Quidel Corp Top agencies HHS (Department of Health and Human Services)	$1,420,000	0.2%	Rank history: #18 in FY2021, #69 in FY2022 and not on the FY2024–FY2025 lists; up 7 since FY2022.
63	Sonic Healthcare Limited 4 awardees, including Cytopath Biopsy Lab Inc., Propath Services, LLC and Bioscientia Institut FÜR Medizinische Diagnostik GMBH Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$1,417,818	0.2%	Rank history: not on the FY2021 list, #98 in FY2022, #73 in FY2024 and not on the FY2025 list; up 35 since FY2022.
64	Ceres Nanosciences, Inc. Top agencies HHS (Department of Health and Human Services)	$1,400,000	0.2%	Rank history: #29 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
65	Stago International Through Diagnostica Stago Inc. Top agencies VA (Department of Veterans Affairs)	$1,392,792	0.2%	Rank history: not on the FY2021–FY2022 lists, #60 in FY2024 and not on the FY2025 list; up 73 since FY2022.
66	University of Pittsburgh Medical Center Through Upmc Presbyterian Shadyside Top agencies VA (Department of Veterans Affairs)	$1,387,835	0.2%	Rank history: #87 in FY2021, #79 in FY2022 and not on the FY2024–FY2025 lists; up 13 since FY2022.
67	Integrum Scientific LLC Top agencies DHA (Defense Health Agency) Army (Department of the Army)	$1,385,307	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 46 since FY2022.
68	Kaiser Foundation Health Plan of Washington Through Kaiser Foundation Hospitals Top agencies HHS (Department of Health and Human Services)	$1,338,371	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 384 since FY2022.
69	Akahi Ingenesis Partners LLC Top agencies USAF (Department of the Air Force)	$1,288,095	0.1%	Rank history: not on the FY2021–FY2022 lists, #65 in FY2024 and #57 in FY2025; new.
70	Government Scientific Source Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$1,263,005	0.1%	Rank history: not on the FY2021–FY2022 lists, #84 in FY2024 and #58 in FY2025; up 47 since FY2022.
71	Biobridge Global Through Qualtex Laboratories Top agencies DHA (Defense Health Agency)	$1,257,210	0.1%	Rank history: #70 in FY2021, #93 in FY2022 and not on the FY2024–FY2025 lists; up 22 since FY2022.
72	Arizona State University Top agencies HHS (Department of Health and Human Services)	$1,175,853	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 370 since FY2022.
73	KAI Research Inc. Through Navitas Clinical Research Inc. Top agencies HHS (Department of Health and Human Services)	$1,174,561	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
74	Eurofins Scientific SE 5 awardees, including Eurofins Lancaster Laboratories Environment Testing, LLC, Eurofins Environment Testing Northern California LLC and Eurofins Umwelt Südwest GMBH Top agencies DHA (Defense Health Agency) HHS (Department of Health and Human Services) Army (Department of the Army)	$1,158,620	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 84 since FY2022.
75	Rosalind, Inc. Top agencies HHS (Department of Health and Human Services)	$1,099,350	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
76	Queen'S Health Systems the Through Diagnostic Laboratory Services, Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) Navy (Department of the Navy)	$1,094,600	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 33 since FY2022.
77	Giamed Alliance JV LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$1,088,291	0.1%	Rank history: not on the FY2021–FY2022 lists, #97 in FY2024 and #98 in FY2025; up 47 since FY2022.
78	Bestica, Inc. Top agencies USAF (Department of the Air Force)	$1,074,468	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 26 since FY2022.
79	QPS Austria GMBH Top agencies HHS (Department of Health and Human Services)	$1,070,693	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 26 since FY2022.
80	Amprion, Inc. Top agencies HHS (Department of Health and Human Services)	$1,064,800	0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #90 in FY2025; new.
81	Veracyte, Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$1,003,187	0.1%	Rank history: not on the FY2021–FY2022 lists, #83 in FY2024 and #59 in FY2025; up 63 since FY2022.
82	Incyte Pathology, P.S Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$980,813	0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #93 in FY2025; up 19 since FY2022.
83	J. Craig Venter Institute, Inc. Top agencies HHS (Department of Health and Human Services)	$976,408	0.1%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2024 and #61 in FY2025; new.
84	Regents of the University of Michigan Top agencies VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$943,475	0.1%	Rank history: not on the FY2021–FY2022 lists, #63 in FY2024 and #67 in FY2025; up 51 since FY2022.
85	Caduceus Healthcare Inc Through Caduceus Inc. Top agencies DHS (Department of Homeland Security)	$936,083	0.1%	Rank history: not on the FY2021–FY2022 lists, #59 in FY2024 and not on the FY2025 list; new.
86	EGA Associates LLC Top agencies VA (Department of Veterans Affairs)	$899,973	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 50 since FY2022.
87	Cameo Consulting Group LLC Top agencies VA (Department of Veterans Affairs)	$850,389	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 20 since FY2022.
88	Caredx, Inc. 2 awardees, including Caredx Lab Solutions Inc. Top agencies VA (Department of Veterans Affairs)	$843,358	0.1%	Rank history: not on the FY2021 list, #95 in FY2022, not on the FY2024 list and #56 in FY2025; up 7 since FY2022.
89	Creative Testing Solutions Top agencies DHA (Defense Health Agency)	$809,774	0.1%	Rank history: not on the FY2021 list, #60 in FY2022, #55 in FY2024 and #37 in FY2025; down 29 since FY2022.
90	University of Texas System 5 awardees, including The University of Texas Southwestern Medical Center, The University of Texas At San Antonio and The Univeristy of Texas M.d. Anderson Cancer Center Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) HHS (Department of Health and Human Services)	$802,800	0.1%	Rank history: not on the FY2021 list, #51 in FY2022, #52 in FY2024 and not on the FY2025 list; down 39 since FY2022.
91	Eagle Health Analytics, LLC Top agencies Army (Department of the Army)	$783,322	0.1%	Rank history: not on the FY2021–FY2022 lists, #80 in FY2024 and #83 in FY2025; new.
92	Polymedco LLC 2 awardees, including Polymedco Cancer Diagnostic Products LLC Top agencies VA (Department of Veterans Affairs)	$764,047	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 37 since FY2022.
93	Cerba Research USA Inc. Top agencies HHS (Department of Health and Human Services)	$762,488	0.1%	Rank history: not on the FY2021 list, #80 in FY2022 and not on the FY2024–FY2025 lists; down 13 since FY2022.
94	Trinity Health Corporation Through Loyola University Health System Top agencies VA (Department of Veterans Affairs)	$741,312	0.1%	Rank history: not on the FY2021–FY2022 lists, #81 in FY2024 and not on the FY2025 list; up 353 since FY2022.
95	Virginia Polytechnic Institute & State University 3 awardees, including Department of General Services Virginia, Commonwealth of Virginia State Board of Health and Virginia Department of Health Top agencies DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$731,416	0.1%	Rank history: not on the FY2021–FY2022 lists, #85 in FY2024 and not on the FY2025 list; up 28 since FY2022.
96	Othram Inc. Top agencies DOI (Department of the Interior) USAF (Department of the Air Force)	$725,540	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
97	Brigham & Womens Hospital Inc 3 awardees, including The General Hospital Corporation and Massachusetts General Physicians Organization, Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$708,650	0.1%	Rank history: not on the FY2021–FY2022 lists, #68 in FY2024 and not on the FY2025 list; up 24 since FY2022.
98	Chloeta Holdings LLC Top agencies HHS (Department of Health and Human Services)	$701,914	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
99	Central TOX LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$678,081	0.1%	Rank history: not on the FY2021–FY2022 lists, #90 in FY2024 and #92 in FY2025; up 35 since FY2022.
100	Adaptive Biotechnologies Corporation Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$673,948	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 46 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 $859 million 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.

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