Top 100 Contractors in PSC Q301: Reference Laboratory Testing, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Walgreen Co. Top agencies HHS (Department of Health and Human Services)	$899,013,416	23.8%	Rank history: #1 in FY2022 and not on the FY2023–FY2025 lists; up 3 since FY2020.
2	Rite Aid Corporation Through Rite Aid Hdqtrs. Corp. Top agencies HHS (Department of Health and Human Services)	$376,079,968	10.0%	Rank history: #5 in FY2022, #25 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
3	E3Health Solutions, LLC Top agencies HHS (Department of Health and Human Services)	$375,405,960	10.0%	Rank history: #8 in FY2022 and not on the FY2023–FY2025 lists; down 2 since FY2020.
4	Clinical Enterprise, LLC Top agencies Army (Department of the Army)	$274,862,880	7.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
5	Battelle Memorial Institute Top agencies Army (Department of the Army) HHS (Department of Health and Human Services)	$219,013,752	5.8%	Rank history: #99 in FY2022 and not on the FY2023–FY2025 lists; up 34 since FY2020.
6	Laboratory Corporation of America Holdings 10 awardees, including Laboratory Corporation of America, Monogram Biosciences, Inc. and Labcorp Early Development Laboratories Inc. Top agencies HHS (Department of Health and Human Services) DHA (Defense Health Agency) VA (Department of Veterans Affairs)	$198,421,343	5.3%	Rank history: #3 in FY2022, #4 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2020.
7	Quest Diagnostics Incorporated 13 awardees, including Quest Diagnostics Nichols Institute, Quest Diagnostics Clinical Laboratories, Inc. and Ameripath Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DOJ (Department of Justice)	$162,576,873	4.3%	Rank history: #4 in FY2022, #2 in FY2023, #2 in FY2024 and #2 in FY2025; down 4 since FY2020.
8	Perkinelmer Inc. 2 awardees, including Revvity Health Sciences, Inc. Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$156,932,476	4.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
9	CVS Health Corporation Through Minuteclinic, L.L.C. Top agencies HHS (Department of Health and Human Services) EOP (Executive Office of the President)	$70,925,451	1.9%	Rank history: #2 in FY2022, #37 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2020.
10	Aegis Sciences Corporation 2 awardees Top agencies HHS (Department of Health and Human Services)	$43,624,646	1.2%	Rank history: #17 in FY2022 and not on the FY2023–FY2025 lists; up 24 since FY2020.
11	The Broad Institute, Inc. 2 awardees Top agencies HHS (Department of Health and Human Services)	$42,167,319	1.1%	Rank history: not on the FY2022–FY2025 lists; up 43 since FY2020.
12	Fulgent Genetics, Inc. Through Fulgent Therapeutics LLC Top agencies HHS (Department of Health and Human Services)	$32,812,326	0.9%	Rank history: #31 in FY2022, #45 in FY2023, #17 in FY2024 and #11 in FY2025; up 50 since FY2020.
13	Luminostics Inc. Top agencies HHS (Department of Health and Human Services)	$28,621,000	0.8%	Rank history: not on the FY2022–FY2025 lists; up 12 since FY2020.
14	Roche Holding AG 3 awardees, including Foundation Medicine, Inc., Roche Diagnostics Corporation and Ventana Medical Systems, Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$27,817,643	0.7%	Rank history: #6 in FY2022, #48 in FY2023, #37 in FY2024 and not on the FY2025 list; up 64 since FY2020.
15	Infinity Biologix LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$25,307,970	0.7%	Rank history: #16 in FY2022, not on the FY2023 list, #10 in FY2024 and #14 in FY2025; new, not ranked in FY2020.
16	Microgem US Inc. Top agencies HHS (Department of Health and Human Services)	$24,369,230	0.6%	Rank history: not on the FY2022–FY2025 lists; down 1 since FY2020.
17	Qorvo, Inc. Through Qorvo Biotechnologies LLC Top agencies HHS (Department of Health and Human Services)	$24,360,000	0.6%	Rank history: #43 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
18	Quidel Corp Top agencies HHS (Department of Health and Human Services)	$24,174,950	0.6%	Rank history: #69 in FY2022, #62 in FY2023 and not on the FY2024–FY2025 lists; down 12 since FY2020.
19	Center for Disease Detection, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$21,825,078	0.6%	Rank history: not on the FY2022–FY2025 lists; down 5 since FY2020.
20	Minute Molecular DIA Top agencies HHS (Department of Health and Human Services)	$21,300,000	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
21	Marshfield Clinic Health System, Inc. Top agencies HHS (Department of Health and Human Services)	$19,981,956	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
22	ANP Technologies Inc. Top agencies HHS (Department of Health and Human Services)	$19,727,817	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
23	Laboratory Corporation of America 2 awardees Top agencies HHS (Department of Health and Human Services) DHA (Defense Health Agency) USAF (Department of the Air Force)	$18,251,920	0.5%	Rank history: #9 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; down 14 since FY2020.
24	Ellume USA LLC Top agencies HHS (Department of Health and Human Services)	$17,970,000	0.5%	Rank history: not on the FY2022–FY2025 lists; down 3 since FY2020.
25	Helix Opco LLC Top agencies HHS (Department of Health and Human Services)	$15,585,290	0.4%	Rank history: #7 in FY2022, #3 in FY2023 and not on the FY2024–FY2025 lists; down 14 since FY2020.
26	Uh-Oh Labs Inc. Top agencies HHS (Department of Health and Human Services)	$14,982,258	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
27	Orasure Technologies Inc. 2 awardees Top agencies HHS (Department of Health and Human Services)	$13,553,465	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
28	PAE Government Services Inc. Through PAE National Security Solutions LLC Top agencies DHS (Department of Homeland Security)	$12,740,241	0.3%	Rank history: #11 in FY2022, #23 in FY2023, #13 in FY2024 and not on the FY2025 list; down 9 since FY2020.
29	Ceres Nanosciences, Inc. Top agencies HHS (Department of Health and Human Services)	$12,174,000	0.3%	Rank history: not on the FY2022 list, #64 in FY2023 and not on the FY2024–FY2025 lists; up 36 since FY2020.
30	Mologic Inc. Top agencies HHS (Department of Health and Human Services)	$11,764,515	0.3%	Rank history: not on the FY2022 list, #27 in FY2023 and not on the FY2024–FY2025 lists; up 373 since FY2020.
31	Loyal Source Government Services LLC Top agencies USAF (Department of the Air Force)	$10,969,251	0.3%	Rank history: #19 in FY2022, #9 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
32	Flambeau Diagnostics LLC Top agencies HHS (Department of Health and Human Services)	$10,900,000	0.3%	Rank history: #15 in FY2022 and not on the FY2023–FY2025 lists; up 14 since FY2020.
33	Miraca Holdings Inc. Through Srl, Inc. Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency)	$10,523,830	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
34	Akesogen, Inc. Top agencies VA (Department of Veterans Affairs)	$10,477,776	0.3%	Rank history: #14 in FY2022, #19 in FY2023, #22 in FY2024 and #23 in FY2025; down 7 since FY2020.
35	Genbody Inc. Top agencies HHS (Department of Health and Human Services)	$10,295,000	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
36	Princeton Biomeditech Corp Top agencies HHS (Department of Health and Human Services)	$10,100,000	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
37	Talis Biomedical Corp Top agencies HHS (Department of Health and Human Services)	$9,750,000	0.3%	Rank history: not on the FY2022–FY2025 lists; down 11 since FY2020.
38	Fundacion Inciensa Top agencies HHS (Department of Health and Human Services)	$9,652,480	0.3%	Rank history: #21 in FY2022, #8 in FY2023, #11 in FY2024 and #33 in FY2025; down 9 since FY2020.
39	Abbott Laboratories 7 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) DOJ (Department of Justice)	$9,142,145	0.2%	Rank history: #25 in FY2022, #12 in FY2023 and not on the FY2024–FY2025 lists; down 16 since FY2020.
40	Pathogendx Inc. Top agencies HHS (Department of Health and Human Services)	$8,919,154	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
41	State of California Controllers Office 13 awardees, including University of California, LOS Angeles, California Department of Public Health and The Regents of the University of California. San Francisco Top agencies HHS (Department of Health and Human Services) DHA (Defense Health Agency) VA (Department of Veterans Affairs)	$8,772,781	0.2%	Rank history: #45 in FY2022, #30 in FY2023, #62 in FY2024 and not on the FY2025 list; up 59 since FY2020.
42	Danaher Corporation 6 awardees, including Beckman Coulter, Inc., Cepheid and Radiometer America, Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$8,246,418	0.2%	Rank history: #26 in FY2022, #13 in FY2023, #39 in FY2024 and #52 in FY2025; down 4 since FY2020.
43	MCI Diagnostic Center LLC Top agencies DOL (Department of Labor) Army (Department of the Army) USAF (Department of the Air Force)	$8,183,594	0.2%	Rank history: #30 in FY2022 and not on the FY2023–FY2025 lists; down 23 since FY2020.
44	Mayo Clinic 2 awardees, including Mayo Collaborative Services, Inc. Top agencies DHA (Defense Health Agency) HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$7,761,729	0.2%	Rank history: #34 in FY2022, #16 in FY2023, #26 in FY2024 and not on the FY2025 list; up 28 since FY2020.
45	Oasis Diagnostics Corporation Top agencies HHS (Department of Health and Human Services)	$7,679,118	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
46	Opko Health, Inc. 2 awardees, including Bioreference Health LLC and Genedx, LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$7,636,184	0.2%	Rank history: not on the FY2022–FY2025 lists; up 22 since FY2020.
47	Pathologists BIO Medical Lab 2 awardees, including Associated Pathologists, LLC and Pathologists Bio-Medical Laboratories, PLLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$7,313,625	0.2%	Rank history: not on the FY2022–FY2025 lists; down 14 since FY2020.
48	University of Utah 2 awardees, including Arup Laboratories Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$7,291,005	0.2%	Rank history: #24 in FY2022, #11 in FY2023, #61 in FY2024 and not on the FY2025 list; down 6 since FY2020.
49	The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc. Top agencies Army (Department of the Army)	$6,783,816	0.2%	Rank history: #23 in FY2022, #7 in FY2023, #14 in FY2024 and #6 in FY2025; down 18 since FY2020.
50	Yukon Medical, LLC Top agencies HHS (Department of Health and Human Services)	$6,756,342	0.2%	Rank history: #77 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
51	Xtrava, Inc. Top agencies HHS (Department of Health and Human Services)	$6,207,000	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
52	Seoul Clinical Laboratories Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$6,190,743	0.2%	Rank history: #54 in FY2022 and not on the FY2023–FY2025 lists; down 16 since FY2020.
53	Banner Health 2 awardees, including Sonora Quest Laboratories LLC Top agencies HHS (Department of Health and Human Services)	$5,565,268	0.1%	Rank history: #70 in FY2022, #41 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2020.
54	Meridian Bioscience Inc. Top agencies HHS (Department of Health and Human Services)	$5,505,000	0.1%	Rank history: #63 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
55	Lumiradx Inc. Top agencies HHS (Department of Health and Human Services)	$5,493,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
56	Oregon Health & Science University Top agencies VA (Department of Veterans Affairs)	$5,366,469	0.1%	Rank history: #83 in FY2022, #44 in FY2023, #36 in FY2024 and #25 in FY2025; up 8 since FY2020.
57	Bml, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$5,246,170	0.1%	Rank history: #97 in FY2022 and not on the FY2023–FY2025 lists; down 9 since FY2020.
58	Materials & Machines Corp of America Top agencies HHS (Department of Health and Human Services)	$4,872,000	0.1%	Rank history: not on the FY2022–FY2025 lists; up 102 since FY2020.
59	Nationwide Children'S Hospital Through Research Institute At Nationwide Children's Hospital Top agencies HHS (Department of Health and Human Services)	$4,540,307	0.1%	Rank history: #49 in FY2022, #61 in FY2023 and not on the FY2024–FY2025 lists; up 21 since FY2020.
60	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)	$4,264,150	0.1%	Rank history: #38 in FY2022, #26 in FY2023, #12 in FY2024 and #87 in FY2025; down 8 since FY2020.
61	Exact Sciences Corporation 2 awardees, including Genomic Health, Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) Army (Department of the Army)	$4,167,300	0.1%	Rank history: not on the FY2022 list, #36 in FY2023, #31 in FY2024 and #35 in FY2025; up 14 since FY2020.
62	Mriglobal Top agencies HHS (Department of Health and Human Services)	$4,086,125	0.1%	Rank history: #33 in FY2022 and not on the FY2023–FY2025 lists; down 3 since FY2020.
63	Jackson Laboratory Top agencies HHS (Department of Health and Human Services)	$3,834,722	0.1%	Rank history: #48 in FY2022, #35 in FY2023, #18 in FY2024 and not on the FY2025 list; down 6 since FY2020.
64	Northern Plains Laboratory LLC Top agencies HHS (Department of Health and Human Services) Army (Department of the Army)	$3,664,121	0.1%	Rank history: #56 in FY2022, #28 in FY2023, #25 in FY2024 and #18 in FY2025; down 3 since FY2020.
65	Baylor College of Medicine Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$3,556,063	0.1%	Rank history: #75 in FY2022, #58 in FY2023, not on the FY2024 list and #20 in FY2025; up 30 since FY2020.
66	Ellume PTY Ltd Through Ellume USA LLC Top agencies HHS (Department of Health and Human Services)	$3,500,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
67	Palogen, Inc. Top agencies HHS (Department of Health and Human Services)	$3,200,000	0.1%	Rank history: #36 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
68	Maxim Biomedical, Inc. Top agencies HHS (Department of Health and Human Services)	$3,153,450	0.1%	Rank history: not on the FY2022–FY2025 lists; up 5 since FY2020.
69	Bloodworks Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$2,883,635	0.1%	Rank history: #35 in FY2022, #31 in FY2023, #43 in FY2024 and #29 in FY2025; down 19 since FY2020.
70	Biobridge Global Through Qualtex Laboratories Top agencies Army (Department of the Army)	$2,835,834	0.1%	Rank history: #93 in FY2022, #71 in FY2023 and not on the FY2024–FY2025 lists; down 14 since FY2020.
71	Genscript USA Inc. Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$2,754,397	0.1%	Rank history: #72 in FY2022, #51 in FY2023, not on the FY2024 list and #96 in FY2025; up 62 since FY2020.
72	Microbiologics, Inc. Top agencies Army (Department of the Army)	$2,653,411	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
73	ST. John Health System, Inc. Through Regional Medical Laboratory, Inc. Top agencies HHS (Department of Health and Human Services)	$2,638,280	0.1%	Rank history: #66 in FY2022 and not on the FY2023–FY2025 lists; up 6 since FY2020.
74	Salignostics Ltd Top agencies HHS (Department of Health and Human Services)	$2,620,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
75	University of Washington 2 awardees, including University of Washington School of Medicine Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) Army (Department of the Army)	$2,547,338	0.1%	Rank history: #58 in FY2022 and not on the FY2023–FY2025 lists; up 19 since FY2020.
76	Meso Scale Diagnostics LLC Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy)	$2,505,169	0.1%	Rank history: #92 in FY2022, #50 in FY2023 and not on the FY2024–FY2025 lists; down 16 since FY2020.
77	Transnetyx, Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$2,423,049	0.1%	Rank history: #73 in FY2022, #54 in FY2023 and not on the FY2024–FY2025 lists; up 11 since FY2020.
78	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)	$2,358,066	0.1%	Rank history: #67 in FY2022, #47 in FY2023, #92 in FY2024 and not on the FY2025 list; up 18 since FY2020.
79	Preventiongenetics LLC Top agencies VA (Department of Veterans Affairs)	$2,323,625	0.1%	Rank history: not on the FY2022 list, #46 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
80	Matrix Providers Inc. Top agencies DHA (Defense Health Agency) Army (Department of the Army)	$2,313,811	0.1%	Rank history: #64 in FY2022, #42 in FY2023, #53 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
81	Eagle Global Scientific, LLC Top agencies Army (Department of the Army)	$2,291,391	0.1%	Rank history: not on the FY2022–FY2025 lists; down 10 since FY2020.
82	Rapid Temps, LLC Top agencies HHS (Department of Health and Human Services)	$2,256,534	0.1%	Rank history: #90 in FY2022, #49 in FY2023, #86 in FY2024 and #55 in FY2025; down 12 since FY2020.
83	Sysmex Corporation Through Sysmex America, Inc. Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) HHS (Department of Health and Human Services)	$2,199,678	0.1%	Rank history: #52 in FY2022, #56 in FY2023, #89 in FY2024 and not on the FY2025 list; down 1 since FY2020.
84	Westat, Inc. Top agencies HHS (Department of Health and Human Services)	$2,158,292	0.1%	Rank history: not on the FY2022–FY2025 lists; down 7 since FY2020.
85	Siemens Aktiengesellschaft 4 awardees, including Siemens Healthcare Diagnostics Inc., Petnet Solutions, Inc. and Siemens S.P.A. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) USAF (Department of the Air Force)	$2,155,966	0.1%	Rank history: #46 in FY2022, #40 in FY2023, #48 in FY2024 and not on the FY2025 list; down 22 since FY2020.
86	Akahi Associates LLC Top agencies Army (Department of the Army)	$2,000,114	0.1%	Rank history: #41 in FY2022, #33 in FY2023, #15 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
87	University of Pittsburgh Medical Center 2 awardees, including Upmc Presbyterian Shadyside Top agencies VA (Department of Veterans Affairs)	$1,997,130	0.1%	Rank history: #79 in FY2022, #66 in FY2023 and not on the FY2024–FY2025 lists; up 76 since FY2020.
88	The Leland Stanford Junior University 3 awardees, including Stanford Hospital & Clinics Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$1,930,820	0.1%	Rank history: #57 in FY2022, #20 in FY2023, #6 in FY2024 and #12 in FY2025; up 363 since FY2020.
89	Greer Laboratories Inc. Top agencies Army (Department of the Army)	$1,904,073	0.1%	Rank history: not on the FY2022–FY2025 lists; down 13 since FY2020.
90	Appddictionstudio Limited Liability Company Top agencies USAF (Department of the Air Force)	$1,814,990	<0.1%	Rank history: #74 in FY2022 and not on the FY2023–FY2025 lists; down 9 since FY2020.
91	Ubiquitome Limited Top agencies HHS (Department of Health and Human Services)	$1,760,000	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 34 since FY2020.
92	Somalogic Operating Co., Inc. Top agencies HHS (Department of Health and Human Services)	$1,723,451	<0.1%	Rank history: #100 in FY2022, #60 in FY2023 and not on the FY2024–FY2025 lists; up 183 since FY2020.
93	Metabolon, Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$1,432,515	<0.1%	Rank history: #81 in FY2022, not on the FY2023 list, #79 in FY2024 and not on the FY2025 list; down 19 since FY2020.
94	Neogenomics Laboratories, Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$1,412,442	<0.1%	Rank history: #84 in FY2022, #32 in FY2023 and not on the FY2024–FY2025 lists; down 11 since FY2020.
95	AB Staffing Solutions LLC Top agencies HHS (Department of Health and Human Services)	$1,400,768	<0.1%	Rank history: #39 in FY2022, #17 in FY2023, #16 in FY2024 and #24 in FY2025; up 46 since FY2020.
96	Compagnie Merieux Alliance 5 awardees, including Biomerieux Inc., Biofire Diagnostics LLC and Biofire Defense LLC Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) DHA (Defense Health Agency)	$1,347,881	<0.1%	Rank history: #50 in FY2022 and not on the FY2023–FY2025 lists; down 43 since FY2020.
97	Novogene Corporation Inc Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$1,329,542	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 53 since FY2020.
98	Healthcare Connections, Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$1,281,374	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 12 since FY2020.
99	The University of Alabama System Through University of Alabama At Birmingham Top agencies VA (Department of Veterans Affairs)	$1,260,200	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 84 since FY2020.
100	One Stop Recruiting LLC Top agencies VA (Department of Veterans Affairs)	$1,253,117	<0.1%	Rank history: #42 in FY2022, #38 in FY2023, #35 in FY2024 and #26 in FY2025; up 15 since 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 $3.77 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.

Quick answers