Top 100 Contractors in PSC B529: Scientific Data Studies, FY2025

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	ManTech International Corporation Through Mantech Advanced Systems International, Inc. Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency)	$17,490,111	11.4%	Rank history: not on the FY2021–FY2023 lists and #90 in FY2024; up 89 since FY2024.
2	Lovelace Biomedical Research Institute Top agencies HHS (Department of Health and Human Services)	$16,821,304	10.9%	Rank history: not on the FY2021–FY2022 lists, #7 in FY2023 and not on the FY2024 list; returned.
3	Iqvia Government Solutions Inc Top agencies HHS (Department of Health and Human Services)	$11,081,573	7.2%	Rank history: not on the FY2021–FY2023 lists and #1 in FY2024; down 2 since FY2024.
4	Mccrone Associates Inc. Top agencies USAF (Department of the Air Force)	$9,961,928	6.5%	Rank history: not on the FY2021–FY2024 lists; new.
5	Deloitte Through Deloitte Consulting LLP Top agencies HHS (Department of Health and Human Services)	$6,497,550	4.2%	Rank history: not on the FY2021–FY2023 lists and #91 in FY2024; up 86 since FY2024.
6	Arctic Slope Regional Corporation 2 awardees, including Netcentric Technology, LLC and Asrc Federal Data Network Technologies, LLC Top agencies Commerce (Department of Commerce) EPA (Environmental Protection Agency)	$5,686,780	3.7%	Rank history: #71 in FY2021, #47 in FY2022, #5 in FY2023 and #75 in FY2024; up 69 since FY2024.
7	Information Management Services, Inc. Top agencies HHS (Department of Health and Human Services)	$5,139,912	3.3%	Rank history: #4 in FY2021, #3 in FY2022, #3 in FY2023 and #5 in FY2024; down 2 since FY2024.
8	Research Triangle Institute Top agencies NSF (National Science Foundation) HHS (Department of Health and Human Services)	$5,111,467	3.3%	Rank history: not on the FY2021 list, #10 in FY2022, #15 in FY2023 and #4 in FY2024; down 4 since FY2024.
9	Stealth Software Technologies, Inc. Top agencies Army (Department of the Army)	$4,759,999	3.1%	Rank history: not on the FY2021–FY2024 lists; new.
10	Gryphon Technologies L.C. Top agencies USAF (Department of the Air Force)	$4,650,862	3.0%	Rank history: not on the FY2021–FY2023 lists and #54 in FY2024; up 44 since FY2024.
11	Source Healthcare Analytics LLC Top agencies HHS (Department of Health and Human Services)	$4,323,354	2.8%	Rank history: not on the FY2021–FY2022 lists, #12 in FY2023 and #10 in FY2024; down 1 since FY2024.
12	Chenega Government Mission Solutions, LLC Top agencies HHS (Department of Health and Human Services)	$2,673,473	1.7%	Rank history: not on the FY2021–FY2023 lists and #16 in FY2024; up 4 since FY2024.
13	Teamstaff Inc. Through Social & Scientific Systems, Inc. Top agencies HHS (Department of Health and Human Services)	$2,492,389	1.6%	Rank history: #14 in FY2021, #15 in FY2022, #19 in FY2023 and #17 in FY2024; up 4 since FY2024.
14	Reveal Global Consulting LLC Top agencies USDA (Department of Agriculture)	$2,491,568	1.6%	Rank history: not on the FY2021–FY2024 lists; new.
15	Bowhead Enterprise, Science and Technology, LLC Top agencies Army (Department of the Army)	$2,467,894	1.6%	Rank history: not on the FY2021–FY2023 lists and #44 in FY2024; up 29 since FY2024.
16	North American Association of Central Cancer Registries Inc. Top agencies HHS (Department of Health and Human Services)	$2,141,678	1.4%	Rank history: #10 in FY2021, #13 in FY2022, #13 in FY2023 and #14 in FY2024; down 2 since FY2024.
17	Washington State University Top agencies DOE (Department of Energy) DOI (Department of the Interior)	$2,049,488	1.3%	Rank history: #66 in FY2021, #21 in FY2022, #55 in FY2023 and #15 in FY2024; down 2 since FY2024.
18	Goldbelt Professional Services, LLC Top agencies HHS (Department of Health and Human Services)	$1,690,858	1.1%	Rank history: not on the FY2021–FY2023 lists and #24 in FY2024; up 6 since FY2024.
19	Kaiser Foundation Hospitals Top agencies HHS (Department of Health and Human Services)	$1,541,075	1.0%	Rank history: not on the FY2021–FY2023 lists and #25 in FY2024; up 6 since FY2024.
20	Ntvi Solutions, LLC Top agencies Commerce (Department of Commerce)	$1,490,177	1.0%	Rank history: not on the FY2021–FY2024 lists; new.
21	Brigham & Womens Hospital Inc Top agencies HHS (Department of Health and Human Services)	$1,482,745	1.0%	Rank history: #16 in FY2021, #20 in FY2022, #29 in FY2023 and #50 in FY2024; up 29 since FY2024.
22	ICF Macro Inc. Top agencies NSF (National Science Foundation)	$1,430,797	0.9%	Rank history: not on the FY2021–FY2023 lists and #36 in FY2024; up 14 since FY2024.
23	University of Texas At Austin Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$1,362,124	0.9%	Rank history: not on the FY2021 list, #48 in FY2022 and not on the FY2023–FY2024 lists; up 255 since FY2024.
24	Samsung Electronics Co.,Ltd. Through Circana, LLC Top agencies HHS (Department of Health and Human Services)	$1,200,991	0.8%	Rank history: not on the FY2021–FY2024 lists; new.
25	Michigan Public Health Institute Top agencies HHS (Department of Health and Human Services)	$1,200,000	0.8%	Rank history: #29 in FY2021, #25 in FY2022, #31 in FY2023 and #32 in FY2024; up 7 since FY2024.
26	Leidos Holdings, Inc. Through Leidos, Inc. Top agencies USAF (Department of the Air Force)	$1,181,790	0.8%	Rank history: #20 in FY2021, #22 in FY2022, #30 in FY2023 and #33 in FY2024; up 7 since FY2024.
27	GDA Corp Top agencies USDA (Department of Agriculture)	$1,092,000	0.7%	Rank history: not on the FY2021–FY2024 lists; new.
28	Vantor Inc. Top agencies Commerce (Department of Commerce)	$999,848	0.6%	Rank history: not on the FY2021–FY2024 lists; new.
29	SGS Axys Analytical Services Ltd. Top agencies DOI (Department of the Interior)	$904,527	0.6%	Rank history: not on the FY2021–FY2023 lists and #20 in FY2024; down 9 since FY2024.
30	Creme Software Ltd Top agencies HHS (Department of Health and Human Services)	$897,750	0.6%	Rank history: not on the FY2021–FY2022 lists, #42 in FY2023 and #41 in FY2024; up 11 since FY2024.
31	The Ohio State University Top agencies HHS (Department of Health and Human Services)	$867,755	0.6%	Rank history: #73 in FY2021, #49 in FY2022, #91 in FY2023 and not on the FY2024 list; returned.
32	Tripoint Solutions, LLC Top agencies ED (Department of Education)	$845,829	0.5%	Rank history: not on the FY2021–FY2023 lists and #43 in FY2024; up 11 since FY2024.
33	American Association for the Advancement of Science Top agencies VA (Department of Veterans Affairs)	$839,561	0.5%	Rank history: #30 in FY2021, #31 in FY2022, #48 in FY2023 and #46 in FY2024; up 13 since FY2024.
34	Ivyhill-Zai, LLC Top agencies HHS (Department of Health and Human Services)	$829,582	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
35	Priwils Inc. Top agencies NSF (National Science Foundation)	$825,189	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
36	Regents of the University of Michigan Top agencies NSF (National Science Foundation) Army (Department of the Army)	$750,890	0.5%	Rank history: #23 in FY2021, not on the FY2022 list, #57 in FY2023 and #42 in FY2024; up 6 since FY2024.
37	Precision Water Resources Engineering, Inc. Top agencies DOI (Department of the Interior)	$737,003	0.5%	Rank history: not on the FY2021–FY2022 lists, #51 in FY2023 and not on the FY2024 list; returned.
38	North Pacific Wildlife Consulting, LLC Top agencies DOI (Department of the Interior)	$732,940	0.5%	Rank history: #87 in FY2021, #30 in FY2022, not on the FY2023 list and #55 in FY2024; up 17 since FY2024.
39	MEF Associates, LLC Top agencies USDA (Department of Agriculture)	$712,995	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
40	Cape Fox Endeavor, LLC Top agencies HHS (Department of Health and Human Services)	$700,091	0.5%	Rank history: not on the FY2021–FY2023 lists and #29 in FY2024; down 11 since FY2024.
41	The Regents of the University of Colorado Top agencies EOP (Executive Office of the President)	$600,000	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
42	ADL Bionatur Solutions SA. Through BBD Biophenix SL Top agencies HHS (Department of Health and Human Services)	$514,280	0.3%	Rank history: not on the FY2021–FY2022 lists, #60 in FY2023 and not on the FY2024 list; returned.
43	Ixblue Inc Through Exail Inc. Top agencies Commerce (Department of Commerce)	$501,130	0.3%	Rank history: not on the FY2021–FY2023 lists and #66 in FY2024; up 23 since FY2024.
44	Accel Solutions LLC Top agencies HHS (Department of Health and Human Services)	$500,486	0.3%	Rank history: #55 in FY2021, #52 in FY2022, #100 in FY2023 and #64 in FY2024; up 20 since FY2024.
45	RTI Laboratories Inc. Top agencies DOI (Department of the Interior)	$500,000	0.3%	Rank history: not on the FY2021–FY2023 lists and #40 in FY2024; down 5 since FY2024.
46	National Opinion Research Center Top agencies HHS (Department of Health and Human Services)	$491,105	0.3%	Rank history: not on the FY2021 list, #35 in FY2022, #44 in FY2023 and #51 in FY2024; up 5 since FY2024.
47	Guidehouse Inc. Through Aptim Federal Services, LLC Top agencies DOI (Department of the Interior)	$485,517	0.3%	Rank history: not on the FY2021–FY2023 lists and #8 in FY2024; down 39 since FY2024.
48	IUF - Leibniz-Institut Fur Umweltmedizinische Forschung GMBH Top agencies HHS (Department of Health and Human Services)	$462,670	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
49	Ipsos Public Affairs, LLC Top agencies HHS (Department of Health and Human Services)	$457,955	0.3%	Rank history: not on the FY2021–FY2022 lists, #47 in FY2023 and #35 in FY2024; down 14 since FY2024.
50	Motivf Corp Top agencies Army (Department of the Army)	$456,928	0.3%	Rank history: not on the FY2021–FY2023 lists and #70 in FY2024; up 20 since FY2024.
51	Asrt, Inc. Top agencies HHS (Department of Health and Human Services)	$450,241	0.3%	Rank history: not on the FY2021–FY2023 lists and #68 in FY2024; up 17 since FY2024.
52	Integrated Behavioral Health, Inc. Top agencies HHS (Department of Health and Human Services)	$395,994	0.3%	Rank history: #67 in FY2021, #38 in FY2022, #95 in FY2023 and #72 in FY2024; up 20 since FY2024.
53	Teledyne Technologies Incorporated Through Teledyne Brown Engineering, Inc. Top agencies USAF (Department of the Air Force)	$386,340	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
54	University of North Carolina At Chapel Hill Top agencies HHS (Department of Health and Human Services)	$366,156	0.2%	Rank history: not on the FY2021 list, #42 in FY2022 and not on the FY2023–FY2024 lists; returned.
55	TGS-Nopec Geophysical Company Through A2D Technologies, Inc. Top agencies DOI (Department of the Interior)	$325,103	0.2%	Rank history: not on the FY2021–FY2023 lists and #76 in FY2024; up 21 since FY2024.
56	Tributary Solutions, LLC Top agencies DOI (Department of the Interior)	$323,232	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
57	GT Molecular, Inc. Top agencies HHS (Department of Health and Human Services)	$299,386	0.2%	Rank history: not on the FY2021–FY2023 lists and #69 in FY2024; up 12 since FY2024.
58	CFD Research Corporation Top agencies HHS (Department of Health and Human Services)	$297,443	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
59	Kamphaeng Phet Hospital Top agencies DHA (Defense Health Agency)	$262,801	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
60	Westat, Inc. Top agencies HHS (Department of Health and Human Services)	$257,439	0.2%	Rank history: #37 in FY2021, not on the FY2022–FY2023 lists and #83 in FY2024; up 23 since FY2024.
61	Michigan State University Top agencies EPA (Environmental Protection Agency) USDA (Department of Agriculture)	$256,478	0.2%	Rank history: not on the FY2021–FY2024 lists; up 208 since FY2024.
62	Purdue University Top agencies HHS (Department of Health and Human Services)	$250,000	0.2%	Rank history: not on the FY2021–FY2023 lists and #87 in FY2024; up 25 since FY2024.
63	Mass General Brigham Incorporated Through The General Hospital Corporation Top agencies HHS (Department of Health and Human Services)	$249,997	0.2%	Rank history: not on the FY2021–FY2023 lists and #84 in FY2024; up 21 since FY2024.
64	Andrew S. Mccreath & Son, Inc. Top agencies DLA (Defense Logistics Agency)	$247,049	0.2%	Rank history: not on the FY2021–FY2023 lists and #86 in FY2024; up 22 since FY2024.
65	Fujifilm Sonosite Inc. Through Fujifilm Biosciences Inc. Top agencies HHS (Department of Health and Human Services)	$246,980	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
66	IHS Global Inc 2 awardees, including R.l. Polk & Co Top agencies Commerce (Department of Commerce) DOT (Department of Transportation)	$240,777	0.2%	Rank history: not on the FY2021–FY2024 lists; up 232 since FY2024.
67	Denver Health and Hospital Authority Top agencies HHS (Department of Health and Human Services)	$238,842	0.2%	Rank history: #77 in FY2021, #55 in FY2022, not on the FY2023 list and #67 in FY2024; unchanged since FY2024.
68	Creative Resource Strategies, LLC Top agencies Army (Department of the Army)	$234,955	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
69	Float Partners LLC Top agencies Commerce (Department of Commerce)	$224,114	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
70	Dewberry Engineers Inc. Top agencies Army (Department of the Army)	$222,492	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
71	Precision for Medicine, Inc. Top agencies HHS (Department of Health and Human Services)	$211,807	0.1%	Rank history: not on the FY2021–FY2023 lists and #94 in FY2024; up 23 since FY2024.
72	Caitta Inc Top agencies HHS (Department of Health and Human Services)	$207,099	0.1%	Rank history: not on the FY2021–FY2022 lists, #53 in FY2023 and #53 in FY2024; down 19 since FY2024.
73	Duke University Top agencies Army (Department of the Army)	$206,475	0.1%	Rank history: #70 in FY2021 and not on the FY2022–FY2024 lists; up 246 since FY2024.
74	Goldbelt C6, LLC Top agencies HHS (Department of Health and Human Services)	$206,157	0.1%	Rank history: not on the FY2021–FY2023 lists and #3 in FY2024; down 71 since FY2024.
75	Novogene Corporation Inc Top agencies USDA (Department of Agriculture)	$202,315	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
76	American College of Emergency Physicians Top agencies HHS (Department of Health and Human Services)	$200,000	0.1%	Rank history: not on the FY2021–FY2023 lists and #80 in FY2024; up 4 since FY2024.
77	Cyano Holdings, Inc. Top agencies DOI (Department of the Interior)	$200,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
78	Trustees of Boston University Top agencies VA (Department of Veterans Affairs)	$191,892	0.1%	Rank history: #72 in FY2021, #88 in FY2022 and not on the FY2023–FY2024 lists; up 39 since FY2024.
79	Mms, Inc. Top agencies HHS (Department of Health and Human Services)	$190,000	0.1%	Rank history: not on the FY2021–FY2023 lists and #100 in FY2024; up 21 since FY2024.
80	Rector & Visitors of the University of Virginia Top agencies DHA (Defense Health Agency)	$187,103	0.1%	Rank history: not on the FY2021–FY2024 lists; up 38 since FY2024.
81	Healthverity Inc. Top agencies HHS (Department of Health and Human Services)	$185,000	0.1%	Rank history: not on the FY2021–FY2023 lists and #45 in FY2024; down 36 since FY2024.
82	Songklanagarind Hospital Top agencies DHA (Defense Health Agency)	$181,420	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
83	Fieldline Inc. Top agencies HHS (Department of Health and Human Services)	$180,537	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
84	Diana Caridha Top agencies DHA (Defense Health Agency)	$174,770	0.1%	Rank history: not on the FY2021–FY2024 lists; up 25 since FY2024.
85	Woolpert, Inc. Top agencies DOI (Department of the Interior)	$169,784	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
86	Ama Analytical Services, Inc. Top agencies HHS (Department of Health and Human Services)	$165,275	0.1%	Rank history: not on the FY2021 list, #87 in FY2022 and not on the FY2023–FY2024 lists; up 24 since FY2024.
87	International Consulting Associates, Inc. Top agencies HHS (Department of Health and Human Services)	$163,416	0.1%	Rank history: #46 in FY2021, #86 in FY2022, #9 in FY2023 and not on the FY2024 list; up 24 since FY2024.
88	Oregon State University Top agencies Army (Department of the Army) DOI (Department of the Interior)	$162,301	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
89	Mpala Research Centre Top agencies Smithsonian (Smithsonian Institution)	$160,499	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
90	Clemson University Top agencies VA (Department of Veterans Affairs)	$156,247	0.1%	Rank history: not on the FY2021–FY2024 lists; up 24 since FY2024.
91	Regents of the University of Minnesota Top agencies HHS (Department of Health and Human Services)	$150,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
92	Credere Associates, LLC Top agencies Army (Department of the Army)	$145,746	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
93	Conservation Metrics, Inc. Top agencies DOI (Department of the Interior)	$140,330	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
94	Chenega Enterprise Systems & Solutions, LLC Top agencies HHS (Department of Health and Human Services)	$139,747	0.1%	Rank history: #17 in FY2021, #19 in FY2022, #27 in FY2023 and #81 in FY2024; down 13 since FY2024.
95	Airborne Snow Observatories Inc Top agencies DOI (Department of the Interior)	$138,933	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
96	Chinook Systems Inc. Top agencies OSD (Office of the Secretary of Defense)	$138,276	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
97	Seqmatic, LLC Top agencies USDA (Department of Agriculture) DOI (Department of the Interior) Commerce (Department of Commerce)	$132,040	0.1%	Rank history: not on the FY2021–FY2024 lists; up 5 since FY2024.
98	Bluepath Labs LLC Top agencies Army (Department of the Army)	$128,514	0.1%	Rank history: not on the FY2021–FY2024 lists; up 82 since FY2024.
99	Admera Health LLC Top agencies USDA (Department of Agriculture)	$128,401	0.1%	Rank history: not on the FY2021–FY2024 lists; up 149 since FY2024.
100	President and Fellows of Harvard College Top agencies HHS (Department of Health and Human Services)	$125,000	0.1%	Rank history: not on the FY2021–FY2024 lists; up 20 since FY2024.

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 $154 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 2025 ran Oct 1, 2024 – Sep 30, 2025. 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 FY2024. "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 FY2024 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