Top 100 Contractors in PSC B529: Scientific Data Studies, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Riva Solutions Inc. Top agencies DOL (Department of Labor)	$15,999,291	14.5%	Rank history: #36 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
2	The Broad Institute, Inc. Top agencies HHS (Department of Health and Human Services)	$6,512,342	5.9%	Rank history: #4 in FY2022, #45 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2020.
3	RTX Corporation Through Hamilton Sundstrand Space Systems International, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$5,877,635	5.3%	Rank history: #23 in FY2022, #41 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2020.
4	Information Management Services, Inc. Top agencies HHS (Department of Health and Human Services)	$5,723,061	5.2%	Rank history: #3 in FY2022, #3 in FY2023, #5 in FY2024 and #7 in FY2025; down 1 since FY2020.
5	Gryphon Technologies, Inc. Through Gryphon Technologies, L.C. Top agencies USAF (Department of the Air Force)	$4,160,824	3.8%	Rank history: #7 in FY2022, #26 in FY2023, #9 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
6	Source Healthcare Analytics LLC Top agencies HHS (Department of Health and Human Services)	$3,964,283	3.6%	Rank history: not on the FY2022–FY2025 lists; down 1 since FY2020.
7	Iqvia Inc. Through Iqvia Government Solutions Inc. Top agencies HHS (Department of Health and Human Services) Commerce (Department of Commerce)	$3,711,132	3.4%	Rank history: #2 in FY2022, #2 in FY2023 and not on the FY2024–FY2025 lists; down 3 since FY2020.
8	The Mitre Corporation Top agencies DHS (Department of Homeland Security)	$2,940,281	2.7%	Rank history: #6 in FY2022, #8 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
9	Sciome LLC Top agencies HHS (Department of Health and Human Services)	$2,527,335	2.3%	Rank history: #9 in FY2022, #61 in FY2023, #22 in FY2024 and not on the FY2025 list; down 2 since FY2020.
10	North American Association of Central Cancer Registries Inc. Top agencies HHS (Department of Health and Human Services)	$2,439,837	2.2%	Rank history: #13 in FY2022, #13 in FY2023, #14 in FY2024 and #16 in FY2025; up 1 since FY2020.
11	President and Fellows of Harvard College 2 awardees Top agencies HHS (Department of Health and Human Services)	$2,181,776	2.0%	Rank history: #24 in FY2022, #37 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
12	4ES Corporation Top agencies HHS (Department of Health and Human Services)	$2,014,174	1.8%	Rank history: not on the FY2022–FY2025 lists; unchanged since FY2020.
13	Puyenpa Services, LLC Top agencies DOT (Department of Transportation)	$1,978,840	1.8%	Rank history: #16 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
14	Teamstaff Inc. Through Social & Scientific Systems, Inc. Top agencies HHS (Department of Health and Human Services)	$1,903,268	1.7%	Rank history: #15 in FY2022, #19 in FY2023, #17 in FY2024 and #13 in FY2025; up 62 since FY2020.
15	Aptim Federal Services LLC Top agencies DOI (Department of the Interior)	$1,639,121	1.5%	Rank history: #14 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
16	Brigham & Womens Hospital Inc Top agencies HHS (Department of Health and Human Services)	$1,499,789	1.4%	Rank history: #20 in FY2022, #29 in FY2023, #50 in FY2024 and #21 in FY2025; unchanged since FY2020.
17	Chenega Enterprise Systems & Solutions, LLC Top agencies HHS (Department of Health and Human Services)	$1,430,181	1.3%	Rank history: #19 in FY2022, #27 in FY2023, #81 in FY2024 and #94 in FY2025; new, not ranked in FY2020.
18	University of North Carolina at Chapel Hill 3 awardees, including University of North Carolina At Wilmington and North Carolina State University Top agencies HHS (Department of Health and Human Services) Commerce (Department of Commerce) USDA (Department of Agriculture)	$1,346,102	1.2%	Rank history: not on the FY2022 list, #33 in FY2023 and not on the FY2024–FY2025 lists; down 8 since FY2020.
19	RWR Advisory Group LLC Top agencies USAF (Department of the Air Force)	$1,300,000	1.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
20	Leidos Holdings, Inc. 2 awardees, including Leidos, Inc. Top agencies USAF (Department of the Air Force) USDA (Department of Agriculture)	$1,282,232	1.2%	Rank history: #22 in FY2022, #30 in FY2023, #33 in FY2024 and #26 in FY2025; up 1 since FY2020.
21	Spaulding Clinical Research, LLC Top agencies HHS (Department of Health and Human Services)	$1,266,061	1.1%	Rank history: not on the FY2022 list, #6 in FY2023, #38 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
22	Booz Allen Hamilton Holding Corporation 2 awardees, including Booz Allen Hamilton Inc. Top agencies HHS (Department of Health and Human Services)	$1,057,366	1.0%	Rank history: #43 in FY2022, #20 in FY2023, #19 in FY2024 and not on the FY2025 list; up 1 since FY2020.
23	Regents of the University of Michigan Top agencies NSF (National Science Foundation)	$1,017,809	0.9%	Rank history: not on the FY2022 list, #57 in FY2023, #42 in FY2024 and #36 in FY2025; up 118 since FY2020.
24	BLN LLC Top agencies ED (Department of Education)	$930,431	0.8%	Rank history: #27 in FY2022, #43 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
25	Synergy America, Inc. Top agencies HHS (Department of Health and Human Services)	$839,969	0.8%	Rank history: #33 in FY2022 and not on the FY2023–FY2025 lists; up 3 since FY2020.
26	The Coleridge Initiative Inc. Top agencies NSF (National Science Foundation)	$820,775	0.7%	Rank history: not on the FY2022–FY2025 lists; down 8 since FY2020.
27	Metabolon, Inc. Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) VA (Department of Veterans Affairs)	$804,350	0.7%	Rank history: #29 in FY2022, #35 in FY2023, #59 in FY2024 and not on the FY2025 list; up 44 since FY2020.
28	Windsor Group LLC Top agencies HHS (Department of Health and Human Services)	$766,003	0.7%	Rank history: #32 in FY2022, #52 in FY2023, #48 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
29	Michigan Public Health Institute Top agencies HHS (Department of Health and Human Services)	$749,288	0.7%	Rank history: #25 in FY2022, #31 in FY2023, #32 in FY2024 and #25 in FY2025; down 2 since FY2020.
30	American Association for the Advancement of Science Top agencies VA (Department of Veterans Affairs)	$744,735	0.7%	Rank history: #31 in FY2022, #48 in FY2023, #46 in FY2024 and #33 in FY2025; new, not ranked in FY2020.
31	Lynker Corporation Top agencies Commerce (Department of Commerce)	$670,463	0.6%	Rank history: #37 in FY2022, #74 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2020.
32	Trewon Technologies LLC Top agencies NSF (National Science Foundation)	$668,779	0.6%	Rank history: #45 in FY2022, not on the FY2023 list, #88 in FY2024 and not on the FY2025 list; down 7 since FY2020.
33	New England Aquarium Corporation Top agencies Commerce (Department of Commerce)	$663,090	0.6%	Rank history: #44 in FY2022 and not on the FY2023–FY2025 lists; up 5 since FY2020.
34	Element Materials Technology Broken Arrow LLC Through Element Materials Technology ANN Arbor LLC Top agencies HHS (Department of Health and Human Services)	$649,780	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
35	G2S Corp Top agencies HHS (Department of Health and Human Services)	$649,457	0.6%	Rank history: not on the FY2022–FY2023 lists, #93 in FY2024 and not on the FY2025 list; up 9 since FY2020.
36	Eastern Research Group Inc. Top agencies HHS (Department of Health and Human Services)	$567,964	0.5%	Rank history: not on the FY2022–FY2025 lists; down 17 since FY2020.
37	Westat, Inc. Top agencies HHS (Department of Health and Human Services)	$546,247	0.5%	Rank history: not on the FY2022–FY2023 lists, #83 in FY2024 and #60 in FY2025; down 11 since FY2020.
38	The Trustees of the University of Pennsylvania Top agencies HHS (Department of Health and Human Services)	$514,115	0.5%	Rank history: not on the FY2022 list, #78 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
39	Earth Networks Inc. Top agencies Commerce (Department of Commerce)	$498,000	0.5%	Rank history: not on the FY2022–FY2025 lists; down 2 since FY2020.
40	Azenta, Inc. 2 awardees, including Genewiz, LLC and Admera Health LLC Top agencies USDA (Department of Agriculture) Commerce (Department of Commerce) Smithsonian (Smithsonian Institution)	$484,034	0.4%	Rank history: #93 in FY2022 and not on the FY2023–FY2025 lists; down 26 since FY2020.
41	Four Points Technology, L.L.C. Top agencies GAO (Government Accountability Office)	$470,000	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
42	Riverside Technology Inc. Top agencies Commerce (Department of Commerce)	$444,323	0.4%	Rank history: not on the FY2022–FY2025 lists; down 18 since FY2020.
43	TGS-Nopec Geophysical Company Through A2D Technologies, Inc. Top agencies DOI (Department of the Interior)	$439,973	0.4%	Rank history: not on the FY2022–FY2025 lists; down 7 since FY2020.
44	Kaiser Foundation Health Plan of Washington Through Kaiser Foundation Hospitals Top agencies HHS (Department of Health and Human Services)	$426,381	0.4%	Rank history: #77 in FY2022, #24 in FY2023 and not on the FY2024–FY2025 lists; up 49 since FY2020.
45	Rutgers, the State University Top agencies DOE (Department of Energy)	$415,000	0.4%	Rank history: not on the FY2022–FY2025 lists; down 6 since FY2020.
46	International Consulting Associates, Inc. Top agencies HHS (Department of Health and Human Services)	$408,042	0.4%	Rank history: #86 in FY2022, #9 in FY2023, not on the FY2024 list and #87 in FY2025; new, not ranked in FY2020.
47	Azura Consulting LLC Top agencies Commerce (Department of Commerce)	$407,334	0.4%	Rank history: not on the FY2022 list, #34 in FY2023, #49 in FY2024 and not on the FY2025 list; up 18 since FY2020.
48	BBD Biophenix SL. Top agencies HHS (Department of Health and Human Services)	$402,500	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
49	Novogene Corporation Inc Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) DOI (Department of the Interior)	$383,416	0.3%	Rank history: #69 in FY2022 and not on the FY2023–FY2025 lists; up 24 since FY2020.
50	IUF - Leibniz-Institut FUR Umweltmedizinische Forschung an DER Heinrich-Heine-UN Through IUF - Leibniz-Institut Fur Umweltmedizinische Forschung GMBH Top agencies HHS (Department of Health and Human Services)	$369,797	0.3%	Rank history: not on the FY2022 list, #63 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
51	Saltwater Inc. Top agencies Commerce (Department of Commerce)	$362,592	0.3%	Rank history: #59 in FY2022 and not on the FY2023–FY2025 lists; up 4 since FY2020.
52	Copial Business Strategists, LLC Top agencies HHS (Department of Health and Human Services)	$338,914	0.3%	Rank history: #50 in FY2022, #66 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2020.
53	Mcneal Professional Services, Inc. Top agencies HHS (Department of Health and Human Services)	$328,005	0.3%	Rank history: #66 in FY2022 and not on the FY2023–FY2025 lists; down 11 since FY2020.
54	Analytic Services Inc. Top agencies Commerce (Department of Commerce)	$317,964	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
55	Accel Solutions LLC Top agencies HHS (Department of Health and Human Services)	$317,894	0.3%	Rank history: #52 in FY2022, #100 in FY2023, #64 in FY2024 and #44 in FY2025; down 2 since FY2020.
56	River Focus, Inc. Top agencies DOI (Department of the Interior)	$314,403	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
57	EA Engineering, Science, and Technology, Inc., PBC Top agencies DOI (Department of the Interior)	$300,000	0.3%	Rank history: #62 in FY2022 and not on the FY2023–FY2025 lists; up 3 since FY2020.
58	Thermo Electron Corporation 2 awardees, including Thermo Electron North America LLC and Life Technologies Corporation Top agencies WHS (DOD Washington Headquarters Service) USDA (Department of Agriculture)	$283,843	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
59	Johannes Gutenberg-Universitat Mainz Top agencies HHS (Department of Health and Human Services)	$272,553	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
60	State of Arizona Through University of Arizona Top agencies DOI (Department of the Interior) USDA (Department of Agriculture) Commerce (Department of Commerce)	$250,724	0.2%	Rank history: #79 in FY2022 and not on the FY2023–FY2025 lists; up 144 since FY2020.
61	UnitedHealth Group Incorporated Through Optuminsight Life Sciences Inc. Top agencies HHS (Department of Health and Human Services)	$250,000	0.2%	Rank history: #63 in FY2022, #76 in FY2023, #92 in FY2024 and not on the FY2025 list; unchanged since FY2020.
62	Active Health Science LLC Top agencies HHS (Department of Health and Human Services)	$245,050	0.2%	Rank history: not on the FY2022 list, #99 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
63	Nusura LLC Through Simulationdeck, LLC Top agencies DOI (Department of the Interior)	$240,000	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
64	Environmental Management & Planning Solutions LLC Top agencies DOI (Department of the Interior) USDA (Department of Agriculture)	$231,653	0.2%	Rank history: not on the FY2022–FY2025 lists; down 16 since FY2020.
65	Munro Defense, Inc. Top agencies EPA (Environmental Protection Agency)	$226,950	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
66	Washington State University Top agencies DOE (Department of Energy)	$218,884	0.2%	Rank history: #21 in FY2022, #55 in FY2023, #15 in FY2024 and #17 in FY2025; down 20 since FY2020.
67	Integrated Behavioral Health, Inc. Top agencies HHS (Department of Health and Human Services)	$217,005	0.2%	Rank history: #38 in FY2022, #95 in FY2023, #72 in FY2024 and #52 in FY2025; new, not ranked in FY2020.
68	The Texas A&M University System 3 awardees, including Texas A&M Univ Cyclotron Ins Top agencies MDA (DOD Missile Defense Agency) WHS (DOD Washington Headquarters Service)	$212,100	0.2%	Rank history: not on the FY2022–FY2025 lists; down 12 since FY2020.
69	EGS Inc. Top agencies DOI (Department of the Interior)	$210,994	0.2%	Rank history: #95 in FY2022 and not on the FY2023–FY2025 lists; unchanged since FY2020.
70	Duke University Top agencies HHS (Department of Health and Human Services)	$210,730	0.2%	Rank history: not on the FY2022–FY2024 lists and #73 in FY2025; up 215 since FY2020.
71	Arctic Slope Regional Corporation Through Vistronix, LLC Top agencies EPA (Environmental Protection Agency)	$209,962	0.2%	Rank history: #47 in FY2022, #5 in FY2023, #75 in FY2024 and #6 in FY2025; down 9 since FY2020.
72	Trustees of Boston University Top agencies VA (Department of Veterans Affairs) DOI (Department of the Interior)	$200,033	0.2%	Rank history: #88 in FY2022, not on the FY2023–FY2024 lists and #78 in FY2025; new, not ranked in FY2020.
73	The Ohio State University Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$199,790	0.2%	Rank history: #49 in FY2022, #91 in FY2023, not on the FY2024 list and #31 in FY2025; down 3 since FY2020.
74	Continental Shelf Associates Incorporated Through CSA Ocean Sciences Inc. Top agencies DOI (Department of the Interior)	$196,121	0.2%	Rank history: not on the FY2022–FY2025 lists; up 21 since FY2020.
75	NSR Land Management, Inc. Top agencies USDA (Department of Agriculture)	$189,525	0.2%	Rank history: not on the FY2022 list, #97 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
76	Discovery Drilling Inc. Top agencies DOI (Department of the Interior)	$185,000	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
77	Denver Health and Hospital Authority Top agencies HHS (Department of Health and Human Services)	$183,831	0.2%	Rank history: #55 in FY2022, not on the FY2023 list, #67 in FY2024 and #67 in FY2025; new, not ranked in FY2020.
78	RB Continuum, Inc. Top agencies Navy (Department of the Navy)	$175,805	0.2%	Rank history: #83 in FY2022 and not on the FY2023–FY2025 lists; down 6 since FY2020.
79	State of California Controllers Office 8 awardees, including University of California San Diego, University of California, LOS Angeles and The Regents of the University of California Top agencies DOI (Department of the Interior) Commerce (Department of Commerce)	$175,122	0.2%	Rank history: #81 in FY2022 and not on the FY2023–FY2025 lists; up 13 since FY2020.
80	George Mason University Top agencies Navy (Department of the Navy)	$174,200	0.2%	Rank history: #78 in FY2022, #67 in FY2023 and not on the FY2024–FY2025 lists; up 100 since FY2020.
81	Brightfield Group LLC Top agencies HHS (Department of Health and Human Services)	$166,300	0.2%	Rank history: #54 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
82	National Academy of Sciences Top agencies GAO (Government Accountability Office) HHS (Department of Health and Human Services)	$164,284	0.1%	Rank history: #40 in FY2022, #93 in FY2023, #28 in FY2024 and not on the FY2025 list; down 32 since FY2020.
83	American Nonsmokers Rights Foundation Top agencies HHS (Department of Health and Human Services)	$163,385	0.1%	Rank history: #80 in FY2022 and not on the FY2023–FY2025 lists; down 8 since FY2020.
84	The Marine Biological Laboratory Top agencies HHS (Department of Health and Human Services)	$155,373	0.1%	Rank history: not on the FY2022–FY2025 lists; down 4 since FY2020.
85	University of Rhode Island Top agencies HHS (Department of Health and Human Services)	$150,280	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
86	Kayrros Inc Top agencies DOE (Department of Energy)	$150,000	0.1%	Rank history: #85 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
87	North Pacific Wildlife Consulting, LLC Top agencies DOI (Department of the Interior)	$149,100	0.1%	Rank history: #30 in FY2022, not on the FY2023 list, #55 in FY2024 and #38 in FY2025; new, not ranked in FY2020.
88	Strativia LLC Top agencies Commerce (Department of Commerce)	$142,607	0.1%	Rank history: not on the FY2022–FY2025 lists; down 24 since FY2020.
89	Center for Aquaculture Technologies, Inc. Top agencies USDA (Department of Agriculture)	$142,032	0.1%	Rank history: not on the FY2022–FY2025 lists; up 13 since FY2020.
90	University of Wisconsin System 2 awardees Top agencies HHS (Department of Health and Human Services)	$137,021	0.1%	Rank history: not on the FY2022–FY2025 lists; down 43 since FY2020.
91	Public Health Institute Top agencies HHS (Department of Health and Human Services)	$133,299	0.1%	Rank history: not on the FY2022 list, #25 in FY2023 and not on the FY2024–FY2025 lists; down 5 since FY2020.
92	Airborne Snow Observatories Inc. Top agencies DOI (Department of the Interior)	$126,773	0.1%	Rank history: #90 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
93	Stichting Het Nederlands Kanker Instituut-Antoni Van Leeuwenhoek Ziekenhuis Top agencies HHS (Department of Health and Human Services)	$126,620	0.1%	Rank history: #100 in FY2022 and not on the FY2023–FY2025 lists; up 25 since FY2020.
94	Olink Proteomics AB Top agencies HHS (Department of Health and Human Services)	$124,730	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
95	Children's National Medical Center Through Children's Research Institute Top agencies HHS (Department of Health and Human Services)	$118,968	0.1%	Rank history: #96 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
96	Creighton University Top agencies HHS (Department of Health and Human Services)	$115,000	0.1%	Rank history: #73 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
97	Board of Governers State University System of Florida 4 awardees, including Florida Atlantic University, University of Florida and Florida State University Top agencies Commerce (Department of Commerce) USDA (Department of Agriculture) DOI (Department of the Interior)	$112,856	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
98	Epoch Life Science Inc. Top agencies USDA (Department of Agriculture)	$112,391	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
99	Lotus Mountain Consulting Inc. Top agencies USDA (Department of Agriculture)	$110,000	0.1%	Rank history: not on the FY2022–FY2025 lists; up 64 since FY2020.
100	Aga Khan University Through The Aga Khan University- Kenya Top agencies HHS (Department of Health and Human Services)	$108,644	0.1%	Rank history: not on the FY2022–FY2025 lists; up 125 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 $110 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 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