Top 100 Contractors in NAICS 62151: Medical and Diagnostic Laboratories, FY2022

Name: Top 100 Contractors in NAICS 62151: Medical and Diagnostic Laboratories, FY2022
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2021 – Sep 30, 2022 Code page on GovTribe

The top 10 won 44% of FY2022 NAICS 62151 contract dollars

Contract obligations: $1,802,580,286 Net of deobligations, by contracts coded NAICS 62151 or a code under it
Contractors: 568 Parent companies with an obligation
Largest contractor: Walgreen Co. $742 million, 21.0% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV

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	21.0%	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	5.2%	Rank history: #7 in FY2021, #25 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	5.1%	Rank history: #4 in FY2021, #4 in FY2023, #72 in FY2024 and #48 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	4.1%	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	3.9%	Rank history: #2 in FY2021, #17 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	0.6%	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 #5 in FY2025; new.
12	Valor Network, Inc. Top agencies Army (Department of the Army) DHA (Defense Health Agency) DHS (Department of Homeland Security)	$12,808,786	0.4%	Rank history: #24 in FY2021, #7 in FY2023, #5 in FY2024 and #4 in FY2025; up 12 since FY2021.
13	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 5 since FY2021.
14	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.
15	Loyal Source Government Services LLC Top agencies USAF (Department of the Air Force)	$10,639,010	0.3%	Rank history: #16 in FY2021, #11 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2021.
16	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: #25 in FY2021, #10 in FY2023, #12 in FY2024 and #7 in FY2025; up 9 since FY2021.
17	University of Utah 2 awardees, including Arup Laboratories Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$8,721,282	0.2%	Rank history: #23 in FY2021, #12 in FY2023, #53 in FY2024 and not on the FY2025 list; up 6 since FY2021.
18	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: #30 in FY2021, #14 in FY2023 and not on the FY2024–FY2025 lists; up 12 since FY2021.
19	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: #28 in FY2021 and not on the FY2023–FY2025 lists; up 9 since FY2021.
20	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, #36 in FY2023, #13 in FY2024 and #11 in FY2025; down 10 since FY2021.
21	Government Imaging Services LLC Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) USAF (Department of the Air Force)	$6,626,056	0.2%	Rank history: #33 in FY2021, #16 in FY2023, #10 in FY2024 and #15 in FY2025; up 12 since FY2021.
22	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, #13 in FY2023, #17 in FY2024 and not on the FY2025 list; down 3 since FY2021.
23	Tempus AI, Inc. Top agencies VA (Department of Veterans Affairs)	$4,323,270	0.1%	Rank history: not on the FY2021 list, #40 in FY2023, #8 in FY2024 and #14 in FY2025; new.
24	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.
25	Creative Testing Solutions Top agencies Army (Department of the Army) DHA (Defense Health Agency)	$3,627,187	0.1%	Rank history: #54 in FY2021, #46 in FY2023, #31 in FY2024 and #21 in FY2025; up 29 since FY2021.
26	Vetmed Group LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$3,618,399	0.1%	Rank history: #42 in FY2021 and not on the FY2023–FY2025 lists; up 16 since FY2021.
27	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: #27 in FY2021 and not on the FY2023–FY2025 lists; unchanged since FY2021.
28	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: #35 in FY2021, #18 in FY2023, #18 in FY2024 and #16 in FY2025; up 7 since FY2021.
29	Acadian Ambulance Service Inc. Top agencies DHS (Department of Homeland Security)	$3,067,603	0.1%	Rank history: #34 in FY2021 and not on the FY2023–FY2025 lists; up 5 since FY2021.
30	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: #43 in FY2021 and not on the FY2023–FY2025 lists; up 13 since FY2021.
31	Diagnostic Imaging Associates, Inc. Top agencies HHS (Department of Health and Human Services)	$2,881,343	0.1%	Rank history: #44 in FY2021, #28 in FY2023, #21 in FY2024 and #24 in FY2025; up 13 since FY2021.
32	Natera Inc. Top agencies VA (Department of Veterans Affairs)	$2,807,616	0.1%	Rank history: not on the FY2021 list, #98 in FY2023, #91 in FY2024 and not on the FY2025 list; up 397 since FY2021.
33	Dt-Trak Consulting, Inc. Top agencies HHS (Department of Health and Human Services)	$2,614,827	0.1%	Rank history: #73 in FY2021, #47 in FY2023 and not on the FY2024–FY2025 lists; up 40 since FY2021.
34	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, not on the FY2023–FY2024 lists and #86 in FY2025; up 118 since FY2021.
35	Research Triangle Institute Top agencies HHS (Department of Health and Human Services)	$2,448,076	0.1%	Rank history: not on the FY2021 list, #20 in FY2023, #76 in FY2024 and #91 in FY2025; new.
36	Advanced Imaging Management, LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DOJ (Department of Justice)	$2,307,691	0.1%	Rank history: #47 in FY2021, #21 in FY2023 and not on the FY2024–FY2025 lists; up 11 since FY2021.
37	Riverside Radiology and Interventional Associates, Inc. Top agencies VA (Department of Veterans Affairs)	$2,224,444	0.1%	Rank history: #55 in FY2021, #32 in FY2023, #29 in FY2024 and not on the FY2025 list; up 18 since FY2021.
38	ST. John Health System, Inc. Through Regional Medical Laboratory, Inc. Top agencies HHS (Department of Health and Human Services)	$2,203,922	0.1%	Rank history: #39 in FY2021 and not on the FY2023–FY2025 lists; up 1 since FY2021.
39	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)	$2,122,362	0.1%	Rank history: #45 in FY2021, #45 in FY2023, #49 in FY2024 and not on the FY2025 list; up 6 since FY2021.
40	Redhawk Group International, LLC Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$2,081,592	0.1%	Rank history: not on the FY2021 list, #24 in FY2023, #62 in FY2024 and #27 in FY2025; new.
41	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; new.
42	Labstat International Inc. Top agencies HHS (Department of Health and Human Services)	$1,917,108	0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #74 in FY2024 and not on the FY2025 list; new.
43	Banner Health Through Sonora Quest Laboratories LLC Top agencies HHS (Department of Health and Human Services)	$1,910,346	0.1%	Rank history: #29 in FY2021, #30 in FY2023 and not on the FY2024–FY2025 lists; down 14 since FY2021.
44	Mystic Ventures Group LLC Top agencies VA (Department of Veterans Affairs)	$1,865,046	0.1%	Rank history: #38 in FY2021, #23 in FY2023, #22 in FY2024 and #22 in FY2025; down 6 since FY2021.
45	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, not on the FY2023 list, #42 in FY2024 and not on the FY2025 list; up 118 since FY2021.
46	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.
47	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: #46 in FY2021, #49 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2021.
48	The Leland Stanford Junior University 3 awardees, including Stanford Hospital & Clinics Top agencies VA (Department of Veterans Affairs)	$1,478,248	<0.1%	Rank history: #48 in FY2021, not on the FY2023 list, #44 in FY2024 and not on the FY2025 list; unchanged since FY2021.
49	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, #33 in FY2023, #73 in FY2024 and #19 in FY2025; up 216 since FY2021.
50	Shared Medical Services Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$1,408,241	<0.1%	Rank history: not on the FY2021 list, #27 in FY2023, #24 in FY2024 and #31 in FY2025; up 76 since FY2021.
51	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, #74 in FY2023 and not on the FY2024–FY2025 lists; new.
52	IS Healthcare LLC Top agencies VA (Department of Veterans Affairs)	$1,365,381	<0.1%	Rank history: #56 in FY2021, #71 in FY2023, #52 in FY2024 and #41 in FY2025; up 4 since FY2021.
53	Physicians Laboratory, P.C. Top agencies VA (Department of Veterans Affairs)	$1,358,924	<0.1%	Rank history: not on the FY2021 list, #66 in FY2023, #71 in FY2024 and #56 in FY2025; new.
54	Biobridge Global Through Qualtex Laboratories Top agencies Army (Department of the Army)	$1,321,166	<0.1%	Rank history: #51 in FY2021, #42 in FY2023 and not on the FY2024–FY2025 lists; down 3 since FY2021.
55	Oregon Health & Science University Top agencies VA (Department of Veterans Affairs)	$1,320,175	<0.1%	Rank history: #31 in FY2021, #35 in FY2023, #28 in FY2024 and #23 in FY2025; down 24 since FY2021.
56	All Valley Imaging, L.l.c Top agencies HHS (Department of Health and Human Services)	$1,301,860	<0.1%	Rank history: #64 in FY2021, #50 in FY2023, #46 in FY2024 and #66 in FY2025; up 8 since FY2021.
57	Vanderbelt University Medical Center Through Vanderbilt University Medical Center Top agencies VA (Department of Veterans Affairs)	$1,285,298	<0.1%	Rank history: #77 in FY2021, #51 in FY2023, #69 in FY2024 and not on the FY2025 list; up 20 since FY2021.
58	Appddictionstudio Limited Liability Company Top agencies USAF (Department of the Air Force)	$1,279,416	<0.1%	Rank history: #59 in FY2021, #43 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2021.
59	Government of the United States Through DLA Troop Support Top agencies DOJ (Department of Justice)	$1,277,301	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
60	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, #26 in FY2023, #30 in FY2024 and #30 in FY2025; down 40 since FY2021.
61	Med-Share Inc. Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice)	$1,243,158	<0.1%	Rank history: #82 in FY2021, #53 in FY2023, #81 in FY2024 and #55 in FY2025; up 21 since FY2021.
62	Radiology Professional Management, LLC Top agencies VA (Department of Veterans Affairs)	$1,221,992	<0.1%	Rank history: #65 in FY2021, #34 in FY2023, #36 in FY2024 and not on the FY2025 list; up 3 since FY2021.
63	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.
64	Maxmed Healthcare Inc. Top agencies USAF (Department of the Air Force)	$1,147,981	<0.1%	Rank history: #70 in FY2021, not on the FY2023 list, #39 in FY2024 and #54 in FY2025; up 6 since FY2021.
65	Insight Health Corp. Top agencies VA (Department of Veterans Affairs)	$1,079,407	<0.1%	Rank history: #90 in FY2021, #41 in FY2023, #37 in FY2024 and not on the FY2025 list; up 25 since FY2021.
66	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: #32 in FY2021 and not on the FY2023–FY2025 lists; down 34 since FY2021.
67	Oklahoma Blood Institute Top agencies VA (Department of Veterans Affairs)	$1,062,068	<0.1%	Rank history: #67 in FY2021, #60 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2021.
68	Genscript USA Inc. Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$1,037,225	<0.1%	Rank history: #71 in FY2021, #63 in FY2023, #61 in FY2024 and #60 in FY2025; up 3 since FY2021.
69	Ansible Government Solutions LLC Top agencies VA (Department of Veterans Affairs)	$1,018,865	<0.1%	Rank history: not on the FY2021 list, #8 in FY2023, #6 in FY2024 and not on the FY2025 list; new.
70	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: #69 in FY2021, #44 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2021.
71	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, #68 in FY2023, not on the FY2024 list and #85 in FY2025; up 98 since FY2021.
72	Bestica, Inc. Top agencies USAF (Department of the Air Force)	$907,328	<0.1%	Rank history: #72 in FY2021, #58 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2021.
73	Neogenomics Laboratories, Inc. Top agencies VA (Department of Veterans Affairs)	$899,115	<0.1%	Rank history: #60 in FY2021, #22 in FY2023 and not on the FY2024–FY2025 lists; down 13 since FY2021.
74	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 57 since FY2021.
75	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.
76	Danaher Corporation 4 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: #36 in FY2021, #39 in FY2023, #51 in FY2024 and #53 in FY2025; down 40 since FY2021.
77	Preventiongenetics LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$840,800	<0.1%	Rank history: #41 in FY2021, #37 in FY2023 and not on the FY2024–FY2025 lists; down 36 since FY2021.
78	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, #90 in FY2023 and not on the FY2024–FY2025 lists; up 65 since FY2021.
79	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.
80	South Central Pathology Lab Pa Top agencies VA (Department of Veterans Affairs)	$810,057	<0.1%	Rank history: not on the FY2021 list, #96 in FY2023, #93 in FY2024 and #63 in FY2025; up 33 since FY2021.
81	Bloodworks Top agencies Army (Department of the Army) VA (Department of Veterans Affairs)	$802,575	<0.1%	Rank history: #52 in FY2021, #84 in FY2023, #90 in FY2024 and #37 in FY2025; down 29 since FY2021.
82	Vitalant Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$783,665	<0.1%	Rank history: #78 in FY2021, #79 in FY2023, not on the FY2024 list and #29 in FY2025; down 4 since FY2021.
83	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: #87 in FY2021, #78 in FY2023 and not on the FY2024–FY2025 lists; up 4 since FY2021.
84	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, #54 in FY2023, #43 in FY2024 and not on the FY2025 list; up 53 since FY2021.
85	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.
86	Dilligas Corp Top agencies HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$660,712	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
87	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: not on the FY2021 list, #55 in FY2023, #66 in FY2024 and #87 in FY2025; up 20 since FY2021.
88	QPS Austria GMBH Top agencies HHS (Department of Health and Human Services)	$646,721	<0.1%	Rank history: not on the FY2021 list, #73 in FY2023 and not on the FY2024–FY2025 lists; up 87 since FY2021.
89	Peninsula Histopathology Laboratory Inc. Top agencies VA (Department of Veterans Affairs)	$639,174	<0.1%	Rank history: not on the FY2021 list, #64 in FY2023, #94 in FY2024 and #88 in FY2025; up 23 since FY2021.
90	Cardionet, LLC Top agencies VA (Department of Veterans Affairs)	$638,334	<0.1%	Rank history: not on the FY2021 list, #57 in FY2023 and not on the FY2024–FY2025 lists; new.
91	Nitelines USA Inc. Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice)	$622,787	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
92	Clinical Imaging Systems, Inc. Top agencies HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$622,423	<0.1%	Rank history: not on the FY2021 list, #67 in FY2023, #65 in FY2024 and not on the FY2025 list; new.
93	Catalina Imaging, Inc. Top agencies USAF (Department of the Air Force)	$620,982	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
94	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, #55 in FY2024 and #82 in FY2025; new.
95	Bronze Star Industries, Inc. Top agencies HHS (Department of Health and Human Services)	$604,800	<0.1%	Rank history: #92 in FY2021, #88 in FY2023, #99 in FY2024 and not on the FY2025 list; down 3 since FY2021.
96	Winergy LLC Top agencies VA (Department of Veterans Affairs)	$587,569	<0.1%	Rank history: #85 in FY2021, #72 in FY2023 and not on the FY2024–FY2025 lists; down 11 since FY2021.
97	Alliance Healthcare Services, Inc. Top agencies VA (Department of Veterans Affairs)	$579,300	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
98	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: not on the FY2021 list and not on the FY2023–FY2025 lists; up 8 since FY2021.
99	Modular Devices Inc. Top agencies VA (Department of Veterans Affairs)	$570,000	<0.1%	Rank history: #93 in FY2021 and not on the FY2023–FY2025 lists; down 6 since FY2021.
100	Somalogic Operating Co., Inc. Top agencies HHS (Department of Health and Human Services)	$552,500	<0.1%	Rank history: #62 in FY2021, #61 in FY2023 and not on the FY2024–FY2025 lists; down 38 since FY2021.

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100 of 568 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 62151

Code	Net obligations	Largest contractor
621511 Medical Laboratories	$1,742,651,676	Walgreen Co.
621512 Diagnostic Imaging Centers	$59,928,610	Valor Network, Inc.

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 $3.54 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

Who were the top 10 NAICS 62151 contractors in FY2022?

1. Walgreen Co. ($742M), 2. CVS Health Corporation ($185M), 3. Laboratory Corporation of America Holdings ($181M), 4. Quest Diagnostics Incorporated ($145M), 5. Rite Aid Corporation ($138M), 6. Helix Opco LLC ($51.4M), 7. E3Health Solutions, LLC ($31.4M), 8. Laboratory Corporation of America ($28.4M), 9. Roche Holding AG ($22.9M), 10. Nexelis Group Inc. ($14.6M).

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