Top 100 Contractors in PSC Q3: Laboratory Testing Services, FY2024

Name: Top 100 Contractors in PSC Q3: Laboratory Testing Services, FY2024
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2023 – Sep 30, 2024 Code page on GovTribe

The top 10 won 46% of FY2024 PSC Q3 contract dollars

Contract obligations: $489,863,971 Net of deobligations, by contracts coded PSC Q3 or a code under it
Contractors: 757 Parent companies with an obligation
Largest contractor: Laboratory Corporation of America $110 million, 16.8% 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	Laboratory Corporation of America 8 awardees, including Center for Disease Detection, LLC, Labcorp Oklahoma Inc. and Bode Cellmark Forensics, Inc. Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs) Army (Department of the Army)	$110,425,409	16.8%	Rank history: #23 in FY2021, #9 in FY2022, #1 in FY2023 and #1 in FY2025; unchanged since FY2023.
2	Quest Diagnostics Incorporated 7 awardees, including Diagnostic Laboratory of Oklahoma LLC, Quest Diagnostics Clinical Laboratories, Inc. and Ameripath Inc. Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) HHS (Department of Health and Human Services)	$91,626,443	13.9%	Rank history: #7 in FY2021, #4 in FY2022, #2 in FY2023 and #2 in FY2025; unchanged since FY2023.
3	Alphabet Inc. Through Verily Life Sciences LLC Top agencies HHS (Department of Health and Human Services)	$31,600,230	4.8%	Rank history: not on the FY2021–FY2022 lists, #10 in FY2023 and not on the FY2025 list; up 7 since FY2023.
4	Roche Diabetes Care Inc Through Foundation Medicine, Inc. Top agencies VA (Department of Veterans Affairs)	$23,245,082	3.5%	Rank history: not on the FY2021–FY2022 lists, #5 in FY2023 and not on the FY2025 list; up 1 since FY2023.
5	Tempus AI, Inc. Top agencies VA (Department of Veterans Affairs)	$10,124,643	1.5%	Rank history: not on the FY2021 list, #37 in FY2022, #55 in FY2023 and #16 in FY2025; up 50 since FY2023.
6	The Leland Stanford Junior University 3 awardees, including Stanford Health Care and Stanford Hospital & Clinics Top agencies VA (Department of Veterans Affairs)	$9,446,305	1.4%	Rank history: #88 in FY2021, #57 in FY2022, #20 in FY2023 and #12 in FY2025; up 14 since FY2023.
7	MRIGLOBAL Top agencies HHS (Department of Health and Human Services)	$8,588,078	1.3%	Rank history: not on the FY2021–FY2022 lists, #22 in FY2023 and #7 in FY2025; up 15 since FY2023.
8	Personalis, Inc. Top agencies VA (Department of Veterans Affairs)	$7,499,600	1.1%	Rank history: not on the FY2021 list, #20 in FY2022, #14 in FY2023 and #4 in FY2025; up 6 since FY2023.
9	Abbott Laboratories Inc. 4 awardees, including Pembrooke Occupational Health, Inc. and Alere Toxicology Services, Inc. Top agencies OSD (Office of the Secretary of Defense) DOT (Department of Transportation) USAF (Department of the Air Force)	$6,050,128	0.9%	Rank history: not on the FY2021–FY2023 lists and #15 in FY2025; new.
10	Infinity Biologix LLC Top agencies VA (Department of Veterans Affairs)	$6,000,000	0.9%	Rank history: #15 in FY2021, #16 in FY2022, not on the FY2023 list and #14 in FY2025; returned.
11	Fundacion Inciensa Top agencies HHS (Department of Health and Human Services)	$5,460,069	0.8%	Rank history: #38 in FY2021, #21 in FY2022, #8 in FY2023 and #33 in FY2025; down 3 since FY2023.
12	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)	$5,194,537	0.8%	Rank history: #60 in FY2021, #38 in FY2022, #26 in FY2023 and #87 in FY2025; up 14 since FY2023.
13	PAE Government Services Inc. Through PAE National Security Solutions LLC Top agencies DHS (Department of Homeland Security)	$5,079,396	0.8%	Rank history: #28 in FY2021, #11 in FY2022, #23 in FY2023 and not on the FY2025 list; up 10 since FY2023.
14	The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc. Top agencies DHA (Defense Health Agency)	$4,919,831	0.7%	Rank history: #49 in FY2021, #23 in FY2022, #7 in FY2023 and #6 in FY2025; down 7 since FY2023.
15	Akahi Associates LLC Top agencies Army (Department of the Army)	$4,898,441	0.7%	Rank history: #86 in FY2021, #41 in FY2022, #33 in FY2023 and not on the FY2025 list; up 18 since FY2023.
16	AB Staffing Solutions LLC Top agencies HHS (Department of Health and Human Services)	$4,631,993	0.7%	Rank history: #95 in FY2021, #39 in FY2022, #17 in FY2023 and #24 in FY2025; up 1 since FY2023.
17	Fulgent Genetics, Inc. 2 awardees, including Fulgent Therapeutics LLC Top agencies VA (Department of Veterans Affairs)	$4,583,914	0.7%	Rank history: #12 in FY2021, #31 in FY2022, #45 in FY2023 and #11 in FY2025; up 28 since FY2023.
18	Jackson Laboratory Top agencies HHS (Department of Health and Human Services)	$4,436,377	0.7%	Rank history: #63 in FY2021, #48 in FY2022, #35 in FY2023 and not on the FY2025 list; up 17 since FY2023.
19	Sonora Quest Laboratories LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$4,286,380	0.7%	Rank history: not on the FY2021–FY2023 lists and #19 in FY2025; up 339 since FY2023.
20	MCI Diagnostic Center LLC Top agencies DOL (Department of Labor) VA (Department of Veterans Affairs) Army (Department of the Army)	$4,221,173	0.6%	Rank history: not on the FY2021–FY2022 lists, #6 in FY2023 and not on the FY2025 list; down 14 since FY2023.
21	Sports Medicine Research and Testing Laboratory Top agencies Navy (Department of the Navy) DHA (Defense Health Agency)	$4,093,100	0.6%	Rank history: not on the FY2021–FY2023 lists and #22 in FY2025; up 200 since FY2023.
22	Akesogen, Inc. Top agencies VA (Department of Veterans Affairs)	$3,999,942	0.6%	Rank history: #34 in FY2021, #14 in FY2022, #19 in FY2023 and #23 in FY2025; down 3 since FY2023.
23	Mayo Collaborative Services, Inc. Top agencies HHS (Department of Health and Human Services) DHA (Defense Health Agency) VA (Department of Veterans Affairs)	$3,891,551	0.6%	Rank history: not on the FY2021–FY2023 lists and #13 in FY2025; new.
24	Arup Laboratories Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$3,664,890	0.6%	Rank history: not on the FY2021–FY2023 lists and #9 in FY2025; new.
25	Northern Plains Laboratory LLC Top agencies HHS (Department of Health and Human Services) Army (Department of the Army)	$3,532,369	0.5%	Rank history: #64 in FY2021, #56 in FY2022, #28 in FY2023 and #18 in FY2025; up 3 since FY2023.
26	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)	$3,067,747	0.5%	Rank history: #44 in FY2021, #34 in FY2022, #16 in FY2023 and not on the FY2025 list; down 10 since FY2023.
27	Psomagen Inc. Top agencies HHS (Department of Health and Human Services)	$3,032,830	0.5%	Rank history: not on the FY2021–FY2023 lists and #66 in FY2025; new.
28	11100 Billingsley Road Opco LLC Top agencies CSOSA (Court Services and Offender Supervision Agency)	$3,007,500	0.5%	Rank history: not on the FY2021–FY2023 lists and #31 in FY2025; new.
29	Research Institute At Nationwide Children's Hospital Top agencies HHS (Department of Health and Human Services)	$2,881,308	0.4%	Rank history: not on the FY2021–FY2023 lists and #65 in FY2025; new.
30	Oneblood, Inc. Top agencies VA (Department of Veterans Affairs)	$2,854,000	0.4%	Rank history: not on the FY2021–FY2023 lists and #27 in FY2025; new.
31	Exact Sciences Corporation 4 awardees, including Preventiongenetics LLC and Genomic Health, Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) USAF (Department of the Air Force)	$2,808,720	0.4%	Rank history: #61 in FY2021, not on the FY2022 list, #36 in FY2023 and #35 in FY2025; up 5 since FY2023.
32	Tatitlek Federal Services LLC Top agencies Army (Department of the Army)	$2,781,679	0.4%	Rank history: not on the FY2021–FY2023 lists and #30 in FY2025; new.
33	Neogenomics Inc. Through Neogenomics Laboratories, Inc. Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) HHS (Department of Health and Human Services)	$2,715,709	0.4%	Rank history: not on the FY2021–FY2023 lists and #39 in FY2025; new.
34	Ghost RX Inc. Top agencies VA (Department of Veterans Affairs)	$2,698,677	0.4%	Rank history: not on the FY2021 list, #62 in FY2022, #29 in FY2023 and #48 in FY2025; down 5 since FY2023.
35	One Stop Recruiting LLC Top agencies VA (Department of Veterans Affairs)	$2,525,795	0.4%	Rank history: #100 in FY2021, #42 in FY2022, #38 in FY2023 and #26 in FY2025; up 3 since FY2023.
36	Oregon Health & Science University Top agencies VA (Department of Veterans Affairs)	$2,319,025	0.4%	Rank history: #56 in FY2021, #83 in FY2022, #44 in FY2023 and #25 in FY2025; up 8 since FY2023.
37	Roche Holding AG Through Roche Diagnostics Corporation Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs)	$2,258,065	0.3%	Rank history: #14 in FY2021, #6 in FY2022, #48 in FY2023 and not on the FY2025 list; up 11 since FY2023.
38	Ginkgo Bioworks Holdings Inc. Through Ginkgo Bioworks, Inc. Top agencies HHS (Department of Health and Human Services)	$2,011,282	0.3%	Rank history: not on the FY2021–FY2023 lists and #44 in FY2025; new.
39	Danaher Corporation 2 awardees, including Beckman Coulter, Inc. and Radiometer America, Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$1,983,156	0.3%	Rank history: #42 in FY2021, #26 in FY2022, #13 in FY2023 and not on the FY2025 list; down 26 since FY2023.
40	Baylor Miraca Genetics Laboratories LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$1,930,352	0.3%	Rank history: not on the FY2021–FY2023 lists and #5 in FY2025; up 155 since FY2023.
41	DNA Labs International Inc Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security)	$1,901,753	0.3%	Rank history: not on the FY2021 list, #89 in FY2022, #59 in FY2023 and #53 in FY2025; up 18 since FY2023.
42	Eagle Integrated Services, LLC Top agencies Navy (Department of the Navy)	$1,882,028	0.3%	Rank history: not on the FY2021–FY2022 lists, #53 in FY2023 and #46 in FY2025; up 11 since FY2023.
43	Bloodworks Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs)	$1,872,045	0.3%	Rank history: #69 in FY2021, #35 in FY2022, #31 in FY2023 and #29 in FY2025; down 12 since FY2023.
44	Transnetyx Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$1,739,506	0.3%	Rank history: not on the FY2021–FY2023 lists and #42 in FY2025; new.
45	DST Innovation GMBH Top agencies DOS (Department of State)	$1,729,015	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
46	Vanderbelt University Medical Center Through Vanderbilt University Medical Center Top agencies VA (Department of Veterans Affairs)	$1,727,213	0.3%	Rank history: not on the FY2021 list, #82 in FY2022, #43 in FY2023 and not on the FY2025 list; down 3 since FY2023.
47	Southwest Research Institute Top agencies Army (Department of the Army)	$1,697,030	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 235 since FY2023.
48	Siemens Aktiengesellschaft Through Siemens Healthcare Diagnostics Inc. Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) DHA (Defense Health Agency)	$1,600,531	0.2%	Rank history: #85 in FY2021, #46 in FY2022, #40 in FY2023 and not on the FY2025 list; down 8 since FY2023.
49	Laredo Technical Services, Inc. Top agencies VA (Department of Veterans Affairs)	$1,509,147	0.2%	Rank history: not on the FY2021–FY2023 lists and #94 in FY2025; new.
50	Sysmex America Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$1,506,262	0.2%	Rank history: not on the FY2021–FY2023 lists and #17 in FY2025; new.
51	Labcorp Oklahoma Inc. Top agencies HHS (Department of Health and Human Services)	$1,495,848	0.2%	Rank history: not on the FY2021–FY2022 lists, #52 in FY2023 and #32 in FY2025; up 1 since FY2023.
52	University of Texas System 3 awardees, including The University of Texas Southwestern Medical Center, The University of Texas Health Science Center At San Antonio and The University of Texas Health Science Center At Tyler Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$1,489,847	0.2%	Rank history: not on the FY2021 list, #51 in FY2022, #90 in FY2023 and not on the FY2025 list; up 38 since FY2023.
53	Matrix Providers Inc. Top agencies DHA (Defense Health Agency)	$1,475,381	0.2%	Rank history: #80 in FY2021, #64 in FY2022, #42 in FY2023 and not on the FY2025 list; down 11 since FY2023.
54	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)	$1,462,011	0.2%	Rank history: not on the FY2021 list, #65 in FY2022, #34 in FY2023 and not on the FY2025 list; down 20 since FY2023.
55	Creative Testing Solutions Top agencies DHA (Defense Health Agency)	$1,415,486	0.2%	Rank history: not on the FY2021 list, #60 in FY2022, #89 in FY2023 and #37 in FY2025; up 34 since FY2023.
56	Upmc Presbyterian Shadyside Top agencies VA (Department of Veterans Affairs)	$1,406,905	0.2%	Rank history: not on the FY2021–FY2023 lists and #51 in FY2025; new.
57	Amentum Services, Inc. Through PAE National Security Solutions LLC Top agencies DHS (Department of Homeland Security)	$1,346,409	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
58	Focus Staff Services LP Top agencies HHS (Department of Health and Human Services)	$1,288,728	0.2%	Rank history: not on the FY2021 list, #76 in FY2022, not on the FY2023 list and not on the FY2025 list; up 43 since FY2023.
59	Caduceus Healthcare Inc Through Caduceus Inc. Top agencies DHS (Department of Homeland Security)	$1,268,147	0.2%	Rank history: not on the FY2021–FY2022 lists, #85 in FY2023 and not on the FY2025 list; up 26 since FY2023.
60	Stago International Through Diagnostica Stago Inc. Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$1,258,463	0.2%	Rank history: not on the FY2021–FY2022 lists, #65 in FY2023 and not on the FY2025 list; up 5 since FY2023.
61	University of Utah 2 awardees, including Arup Laboratories Inc. Top agencies VA (Department of Veterans Affairs)	$1,225,727	0.2%	Rank history: #48 in FY2021, #24 in FY2022, #11 in FY2023 and not on the FY2025 list; down 50 since FY2023.
62	State of California Controllers Office 7 awardees, including California Department of Public Health, Ucla Department of Pathology & Laboratory Medicine and University of California, San Diego Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs)	$1,223,436	0.2%	Rank history: #41 in FY2021, #45 in FY2022, #30 in FY2023 and not on the FY2025 list; down 32 since FY2023.
63	Regents of the University of Michigan Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$1,221,199	0.2%	Rank history: not on the FY2021–FY2022 lists, #84 in FY2023 and #67 in FY2025; up 21 since FY2023.
64	Aegis Toxicology Sciences Corporation Through Aegis Sciences Corporation Top agencies HHS (Department of Health and Human Services)	$1,135,113	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
65	Akahi Ingenesis Partners LLC Top agencies DHA (Defense Health Agency)	$1,082,986	0.2%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2023 and #57 in FY2025; up 4 since FY2023.
66	Sophia Genetics Inc. Top agencies USAF (Department of the Air Force)	$1,039,299	0.2%	Rank history: not on the FY2021–FY2023 lists and #76 in FY2025; up 40 since FY2023.
67	J. Craig Venter Institute, Inc. Top agencies HHS (Department of Health and Human Services)	$1,014,954	0.2%	Rank history: not on the FY2021–FY2022 lists, #83 in FY2023 and #61 in FY2025; up 16 since FY2023.
68	Brigham & Womens Hospital Inc 2 awardees, including The General Hospital Corporation Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$971,582	0.1%	Rank history: not on the FY2021–FY2022 lists, #97 in FY2023 and not on the FY2025 list; up 29 since FY2023.
69	The Regents of the University of California. San Francisco Top agencies HHS (Department of Health and Human Services)	$965,540	0.1%	Rank history: not on the FY2021–FY2023 lists and #82 in FY2025; new.
70	LHC Group, Inc. Through Healthcare Connections, Inc. Top agencies VA (Department of Veterans Affairs)	$941,909	0.1%	Rank history: not on the FY2021–FY2023 lists and #75 in FY2025; new.
71	Diagnostic Laboratory Services, Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$921,217	0.1%	Rank history: not on the FY2021–FY2023 lists and #49 in FY2025; new.
72	University of California, LOS Angeles Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$917,853	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
73	Sonic Healthcare Limited 2 awardees, including Cytopath Biopsy Lab Inc. and Propath Services, LLC Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$877,644	0.1%	Rank history: not on the FY2021 list, #98 in FY2022, #63 in FY2023 and not on the FY2025 list; down 10 since FY2023.
74	A-Team Solutions LLC Top agencies VA (Department of Veterans Affairs)	$874,016	0.1%	Rank history: not on the FY2021–FY2023 lists and #60 in FY2025; new.
75	QPS Austria GMBH Top agencies HHS (Department of Health and Human Services)	$866,800	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
76	Trustees of Indiana University Top agencies VA (Department of Veterans Affairs)	$865,869	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
77	Cameo Consulting Group LLC Top agencies VA (Department of Veterans Affairs)	$859,084	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
78	Millbrook Support Services Inc Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$851,938	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 27 since FY2023.
79	Metabolon, Inc. Top agencies HHS (Department of Health and Human Services) Army (Department of the Army)	$821,652	0.1%	Rank history: #93 in FY2021, #81 in FY2022, not on the FY2023 list and not on the FY2025 list; up 28 since FY2023.
80	Eagle Health Analytics, LLC Top agencies Army (Department of the Army)	$819,063	0.1%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2023 and #83 in FY2025; up 11 since FY2023.
81	Trinity Health Corporation Through Loyola University Health System Top agencies VA (Department of Veterans Affairs)	$807,313	0.1%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2023 and not on the FY2025 list; up 13 since FY2023.
82	Trustees of Columbia University In the City of New York Top agencies VA (Department of Veterans Affairs)	$799,000	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
83	Veracyte, Inc. 2 awardees, including Veracyte Labs SD Corporation Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$782,368	0.1%	Rank history: not on the FY2021–FY2022 lists, #81 in FY2023 and #59 in FY2025; down 2 since FY2023.
84	Government Scientific Source Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$773,593	0.1%	Rank history: not on the FY2021–FY2022 lists, #70 in FY2023 and #58 in FY2025; down 14 since FY2023.
85	Virginia Polytechnic Institute & State University Through Department of General Services Virginia Top agencies DHA (Defense Health Agency)	$772,800	0.1%	Rank history: not on the FY2021–FY2022 lists, #95 in FY2023 and not on the FY2025 list; up 10 since FY2023.
86	Rapid Temps, LLC Top agencies HHS (Department of Health and Human Services)	$768,689	0.1%	Rank history: #82 in FY2021, #90 in FY2022, #49 in FY2023 and #55 in FY2025; down 37 since FY2023.
87	Ortho-Clinical Diagnostics, Inc. 2 awardees Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency) VA (Department of Veterans Affairs)	$767,881	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 138 since FY2023.
88	Eitr Biologics Inc. Top agencies DHA (Defense Health Agency)	$756,676	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 79 since FY2023.
89	Sysmex Corporation Through Sysmex America, Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$731,702	0.1%	Rank history: #83 in FY2021, #52 in FY2022, #56 in FY2023 and not on the FY2025 list; down 33 since FY2023.
90	Central TOX LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$709,956	0.1%	Rank history: not on the FY2021–FY2022 lists, #99 in FY2023 and #92 in FY2025; up 9 since FY2023.
91	Appddictionstudio Limited Liability Company Top agencies USAF (Department of the Air Force)	$709,517	0.1%	Rank history: not on the FY2021–FY2023 lists and #77 in FY2025; new.
92	The American National Red Cross 2 awardees Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$704,223	0.1%	Rank history: #78 in FY2021, #67 in FY2022, #47 in FY2023 and not on the FY2025 list; down 45 since FY2023.
93	Psychology Software Tools Inc. Top agencies VA (Department of Veterans Affairs)	$685,850	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 339 since FY2023.
94	Ansible Government Solutions LLC Top agencies VA (Department of Veterans Affairs)	$683,072	0.1%	Rank history: not on the FY2021 list, #29 in FY2022, #15 in FY2023 and #54 in FY2025; down 79 since FY2023.
95	San Diego Pathologists Medical Group, Inc. Top agencies VA (Department of Veterans Affairs)	$682,682	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 32 since FY2023.
96	Semanticbits LLC Through ICF Incorporated, L.L.C. Top agencies HHS (Department of Health and Human Services)	$664,626	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
97	Giamed Alliance JV LLC Top agencies DHA (Defense Health Agency)	$658,859	0.1%	Rank history: not on the FY2021–FY2022 lists, #77 in FY2023 and #98 in FY2025; down 20 since FY2023.
98	RLM Government Services LLC Top agencies VA (Department of Veterans Affairs)	$655,654	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 94 since FY2023.
99	Expression Manufacturing LLC Top agencies HHS (Department of Health and Human Services)	$648,968	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
100	Vector Biomed Inc. Top agencies HHS (Department of Health and Human Services)	$611,500	0.1%	Rank history: not on the FY2021–FY2023 lists and #85 in FY2025; new.

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100 of 757 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC Q3

Code	Net obligations	Largest contractor
Q301 Reference Laboratory Testing	$489,863,971	Laboratory Corporation of America

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 $658 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 2024 ran Oct 1, 2023 – Sep 30, 2024. 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 FY2023. "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 FY2023 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 PSC Q3 contractors in FY2024?

1. Laboratory Corporation of America ($110M), 2. Quest Diagnostics Incorporated ($91.6M), 3. Alphabet Inc. ($31.6M), 4. Roche Diabetes Care Inc ($23.2M), 5. Tempus AI, Inc. ($10.1M), 6. The Leland Stanford Junior University ($9.45M), 7. MRIGLOBAL ($8.59M), 8. Personalis, Inc. ($7.5M), 9. Abbott Laboratories Inc. ($6.05M), 10. Infinity Biologix LLC ($6M).

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