Top 100 Contractors in PSC R405: Operations Research and Quantitative Analysis Services, FY2025

Name: Top 100 Contractors in PSC R405: Operations Research and Quantitative Analysis Services, FY2025
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe

The top 10 won 47% of FY2025 PSC R405 contract dollars

Contract obligations: $375,526,517 Net of deobligations, by contracts coded PSC R405
Contractors: 157 Parent companies with an obligation
Largest contractor: Leidos Holdings, Inc. $51.3 million, 12.6% 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	Leidos Holdings, Inc. 2 awardees, including Leidos, Inc. Top agencies Army (Department of the Army)	$51,285,117	12.6%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023 and #1 in FY2024; unchanged since FY2024.
2	Human Resources Research Organization (Humrro) Top agencies DHRA (Defense Human Resources Activity)	$36,674,613	9.0%	Rank history: #37 in FY2021 and not on the FY2022–FY2024 lists; returned.
3	Accenture Federal Services LLC Top agencies DHS (Department of Homeland Security)	$20,303,044	5.0%	Rank history: not on the FY2021–FY2023 lists and #10 in FY2024; up 7 since FY2024.
4	Computational Physics, Inc. Top agencies Navy (Department of the Navy)	$15,466,249	3.8%	Rank history: #23 in FY2021, #15 in FY2022, #17 in FY2023 and #9 in FY2024; up 5 since FY2024.
5	Deloitte 2 awardees, including Deloitte Consulting LLP Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs)	$12,657,048	3.1%	Rank history: not on the FY2021–FY2023 lists and #6 in FY2024; up 1 since FY2024.
6	Amentum Holdings, Inc. Through Amentum Services, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$12,276,773	3.0%	Rank history: not on the FY2021–FY2024 lists; new.
7	Titan Alpha LLC Top agencies VA (Department of Veterans Affairs)	$10,657,582	2.6%	Rank history: not on the FY2021–FY2023 lists and #8 in FY2024; up 1 since FY2024.
8	American Institutes for Research In the Behavioral Sciences Top agencies Army (Department of the Army)	$10,393,962	2.6%	Rank history: #90 in FY2021, #56 in FY2022, #64 in FY2023 and #11 in FY2024; up 3 since FY2024.
9	American Systems Corporation Top agencies OSD (Office of the Secretary of Defense)	$9,969,066	2.5%	Rank history: #12 in FY2021, #37 in FY2022 and not on the FY2023–FY2024 lists; returned.
10	Applied Research Associates, Inc. Top agencies DHS (Department of Homeland Security)	$9,585,382	2.4%	Rank history: not on the FY2021 list, #4 in FY2022, #2 in FY2023 and #2 in FY2024; down 8 since FY2024.
11	The Johns Hopkins University Applied Physics Laboratory LLC Top agencies DHS (Department of Homeland Security)	$9,553,102	2.4%	Rank history: not on the FY2021–FY2024 lists; new.
12	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies OSD (Office of the Secretary of Defense) Navy (Department of the Navy) HHS (Department of Health and Human Services)	$8,907,472	2.2%	Rank history: #4 in FY2021, #5 in FY2022, #4 in FY2023 and #7 in FY2024; down 5 since FY2024.
13	Halvik LLC Top agencies DOT (Department of Transportation) Army (Department of the Army)	$8,292,466	2.0%	Rank history: not on the FY2021–FY2023 lists and #19 in FY2024; up 6 since FY2024.
14	Koniag It Systems, LLC Top agencies DOS (Department of State)	$6,595,329	1.6%	Rank history: not on the FY2021–FY2023 lists and #35 in FY2024; up 21 since FY2024.
15	JP Systems, Inc. Top agencies VA (Department of Veterans Affairs)	$6,298,081	1.6%	Rank history: #6 in FY2021, #23 in FY2022, #50 in FY2023 and #55 in FY2024; up 40 since FY2024.
16	Bowhead Program Management & Operations, LLC Top agencies Navy (Department of the Navy)	$5,723,808	1.4%	Rank history: not on the FY2021–FY2022 lists, #84 in FY2023 and #37 in FY2024; up 21 since FY2024.
17	A3 Consulting Services Inc. Through A3 Consulting LLC Top agencies DCSA (Defense Counterintelligence and Security Agency)	$5,674,605	1.4%	Rank history: not on the FY2021–FY2023 lists and #23 in FY2024; up 6 since FY2024.
18	Analygence Inc. Through Tharros Defense, Inc. Top agencies DHS (Department of Homeland Security)	$5,518,382	1.4%	Rank history: not on the FY2021–FY2022 lists, #21 in FY2023 and #18 in FY2024; unchanged since FY2024.
19	Science Applications International Corporation Top agencies OSD (Office of the Secretary of Defense)	$5,486,580	1.4%	Rank history: not on the FY2021–FY2024 lists; new.
20	Data Recognition Corporation Top agencies DHRA (Defense Human Resources Activity)	$5,420,710	1.3%	Rank history: not on the FY2021 list, #93 in FY2022, #28 in FY2023 and #36 in FY2024; up 16 since FY2024.
21	Peraton Inc. Top agencies DHRA (Defense Human Resources Activity)	$4,721,576	1.2%	Rank history: not on the FY2021–FY2023 lists and #65 in FY2024; up 44 since FY2024.
22	Dell Technologies Inc. Through Dell Federal Systems L.P Top agencies USAF (Department of the Air Force)	$4,644,283	1.1%	Rank history: not on the FY2021–FY2024 lists; new.
23	National Opinion Research Center Top agencies DOT (Department of Transportation) SEC (Securities and Exchange Commission)	$4,410,903	1.1%	Rank history: #84 in FY2021, #22 in FY2022, #49 in FY2023 and not on the FY2024 list; up 79 since FY2024.
24	Systems Planning and Analysis, Inc. Top agencies OSD (Office of the Secretary of Defense) Navy (Department of the Navy)	$4,403,153	1.1%	Rank history: not on the FY2021–FY2024 lists; new.
25	Sugpiat Defense, LLC Top agencies DHA (Defense Health Agency)	$4,274,755	1.1%	Rank history: not on the FY2021 list, #27 in FY2022, #25 in FY2023 and #26 in FY2024; up 1 since FY2024.
26	Eagle Harbor, LLC Top agencies DOJ (Department of Justice)	$4,028,258	1.0%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2023 and #33 in FY2024; up 7 since FY2024.
27	Padron Partners II LLC Top agencies DHS (Department of Homeland Security)	$3,996,277	1.0%	Rank history: not on the FY2021–FY2023 lists and #15 in FY2024; down 12 since FY2024.
28	Reli Group Inc. Top agencies HHS (Department of Health and Human Services)	$3,869,276	1.0%	Rank history: #11 in FY2021, #13 in FY2022, #15 in FY2023 and #12 in FY2024; down 16 since FY2024.
29	Iproov Limited Top agencies DHS (Department of Homeland Security)	$3,575,873	0.9%	Rank history: not on the FY2021–FY2022 lists, #34 in FY2023 and #40 in FY2024; up 11 since FY2024.
30	Yulista Solutions, LLC Top agencies Navy (Department of the Navy)	$3,569,324	0.9%	Rank history: not on the FY2021–FY2022 lists, #6 in FY2023 and #20 in FY2024; down 10 since FY2024.
31	Mathematica Inc. 2 awardees Top agencies USDA (Department of Agriculture) HHS (Department of Health and Human Services)	$3,562,157	0.9%	Rank history: not on the FY2021–FY2023 lists and #45 in FY2024; up 14 since FY2024.
32	Cherokee Insights LLC Top agencies USAF (Department of the Air Force)	$3,493,654	0.9%	Rank history: #36 in FY2021, #33 in FY2022, #33 in FY2023 and #30 in FY2024; down 2 since FY2024.
33	Padron LLC Top agencies DHS (Department of Homeland Security)	$3,449,974	0.8%	Rank history: not on the FY2021–FY2023 lists and #28 in FY2024; down 5 since FY2024.
34	Techpride-Jpi JV, LLC Top agencies DHS (Department of Homeland Security)	$3,150,010	0.8%	Rank history: not on the FY2021–FY2023 lists and #58 in FY2024; up 24 since FY2024.
35	D&G Support Services LLC Top agencies DHS (Department of Homeland Security)	$2,905,235	0.7%	Rank history: not on the FY2021–FY2022 lists, #30 in FY2023 and #44 in FY2024; up 9 since FY2024.
36	Celeen LLC Top agencies DHS (Department of Homeland Security)	$2,706,559	0.7%	Rank history: not on the FY2021–FY2023 lists and #17 in FY2024; down 19 since FY2024.
37	ABT Global LLC Top agencies HHS (Department of Health and Human Services)	$2,306,022	0.6%	Rank history: not on the FY2021–FY2023 lists and #31 in FY2024; down 6 since FY2024.
38	Epathusa Inc. Top agencies HHS (Department of Health and Human Services)	$2,282,130	0.6%	Rank history: not on the FY2021–FY2023 lists and #53 in FY2024; up 15 since FY2024.
39	Gartner, Inc. Top agencies Army (Department of the Army) Commerce (Department of Commerce)	$2,281,664	0.6%	Rank history: not on the FY2021 list, #70 in FY2022, #52 in FY2023 and #51 in FY2024; up 12 since FY2024.
40	Encompass LLC Top agencies USAID (US Agency for International Development)	$2,259,987	0.6%	Rank history: not on the FY2021–FY2022 lists, #18 in FY2023 and #14 in FY2024; down 26 since FY2024.
41	The Survice Engineering Company LLC Top agencies DFAS (Defense Finance and Accounting Service)	$2,245,362	0.6%	Rank history: not on the FY2021 list, #45 in FY2022, #37 in FY2023 and #46 in FY2024; up 5 since FY2024.
42	KBR Wyle Services LLC Top agencies NASA (National Aeronautics and Space Administration)	$2,186,255	0.5%	Rank history: not on the FY2021–FY2023 lists and #3 in FY2024; down 39 since FY2024.
43	Nodi Solutions, LLC Top agencies DHS (Department of Homeland Security)	$2,124,112	0.5%	Rank history: not on the FY2021–FY2023 lists and #54 in FY2024; up 11 since FY2024.
44	Tripoint Solutions, LLC Top agencies DHRA (Defense Human Resources Activity)	$2,109,263	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
45	Metaphase Consulting LLC Top agencies DHS (Department of Homeland Security)	$2,022,528	0.5%	Rank history: #29 in FY2021, #11 in FY2022, #16 in FY2023 and #24 in FY2024; down 21 since FY2024.
46	International Data Systems LLC Top agencies DHA (Defense Health Agency)	$2,018,623	0.5%	Rank history: not on the FY2021–FY2023 lists and #57 in FY2024; up 11 since FY2024.
47	Tecolote Research, Inc. Top agencies DHS (Department of Homeland Security)	$1,962,298	0.5%	Rank history: #42 in FY2021, #34 in FY2022, #51 in FY2023 and #60 in FY2024; up 13 since FY2024.
48	Kpmg LLP Top agencies HUD (Department of Housing and Urban Development)	$1,883,555	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
49	Group W Inc. Top agencies Army (Department of the Army)	$1,861,264	0.5%	Rank history: #52 in FY2021, #42 in FY2022, #43 in FY2023 and #42 in FY2024; down 7 since FY2024.
50	Federated IT, Inc. Top agencies Navy (Department of the Navy)	$1,796,693	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
51	Ivaal Federal LLC Top agencies DHS (Department of Homeland Security)	$1,766,415	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
52	Contracting Resources Group Inc Top agencies DHA (Defense Health Agency)	$1,699,944	0.4%	Rank history: not on the FY2021–FY2022 lists, #68 in FY2023 and #62 in FY2024; up 10 since FY2024.
53	Westat, Inc. 2 awardees Top agencies DOT (Department of Transportation) DOL (Department of Labor)	$1,694,396	0.4%	Rank history: #44 in FY2021, #92 in FY2022, #97 in FY2023 and #22 in FY2024; down 31 since FY2024.
54	Analytica LLC Top agencies DHS (Department of Homeland Security)	$1,628,481	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
55	Innovative Technology Solutions JV, LLC Top agencies USAF (Department of the Air Force)	$1,587,597	0.4%	Rank history: not on the FY2021–FY2022 lists, #35 in FY2023 and #41 in FY2024; down 14 since FY2024.
56	Arete Associates Top agencies Navy (Department of the Navy)	$1,459,683	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
57	C5T Corporation Top agencies USTRANSCOM (Department of Defense United States Transportation Command)	$1,453,541	0.4%	Rank history: #83 in FY2021, #63 in FY2022, #60 in FY2023 and not on the FY2024 list; up 134 since FY2024.
58	Advanced Systems Technology & Management, Inc. Top agencies USAF (Department of the Air Force)	$1,445,019	0.4%	Rank history: #47 in FY2021, #41 in FY2022, not on the FY2023 list and #49 in FY2024; down 9 since FY2024.
59	Kingfisher Systems, Inc. Top agencies DOT (Department of Transportation)	$1,390,738	0.3%	Rank history: not on the FY2021 list, #82 in FY2022, #67 in FY2023 and #69 in FY2024; up 10 since FY2024.
60	Laulima Government Solutions, LLC Top agencies DHA (Defense Health Agency)	$1,169,926	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
61	Aermor LLC Top agencies Navy (Department of the Navy)	$1,169,819	0.3%	Rank history: #65 in FY2021, #47 in FY2022, #54 in FY2023 and #66 in FY2024; up 5 since FY2024.
62	Kaihonua LLC Top agencies DHA (Defense Health Agency)	$1,164,834	0.3%	Rank history: #45 in FY2021, #43 in FY2022, #76 in FY2023 and #71 in FY2024; up 9 since FY2024.
63	Leisnoi Professional Services LLC Top agencies DOS (Department of State)	$1,100,005	0.3%	Rank history: not on the FY2021–FY2023 lists and #73 in FY2024; up 10 since FY2024.
64	Explore Digits Inc Top agencies HHS (Department of Health and Human Services)	$1,085,549	0.3%	Rank history: not on the FY2021–FY2022 lists, #70 in FY2023 and #52 in FY2024; down 12 since FY2024.
65	The District Communications Group LLC Top agencies DOS (Department of State)	$1,076,521	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
66	Solutions for Information Design, Inc. Top agencies DHS (Department of Homeland Security)	$957,936	0.2%	Rank history: #86 in FY2021, #91 in FY2022, #90 in FY2023 and not on the FY2024 list; up 46 since FY2024.
67	The Mitre Corporation Top agencies SSA (Social Security Administration)	$911,606	0.2%	Rank history: #26 in FY2021, #26 in FY2022, #7 in FY2023 and #4 in FY2024; down 63 since FY2024.
68	Metrics LLC Top agencies VA (Department of Veterans Affairs)	$888,948	0.2%	Rank history: not on the FY2021–FY2023 lists and #79 in FY2024; up 11 since FY2024.
69	IT Data Consulting L.L.C. Top agencies HUD (Department of Housing and Urban Development)	$841,087	0.2%	Rank history: not on the FY2021–FY2022 lists, #83 in FY2023 and #80 in FY2024; up 11 since FY2024.
70	Global Data Publications Inc. Top agencies HHS (Department of Health and Human Services)	$733,404	0.2%	Rank history: not on the FY2021–FY2023 lists and #83 in FY2024; up 13 since FY2024.
71	University of California, LOS Angeles Top agencies VA (Department of Veterans Affairs)	$710,000	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
72	Infotrend Incorporated Top agencies SEC (Securities and Exchange Commission)	$688,080	0.2%	Rank history: #67 in FY2021, #68 in FY2022, #65 in FY2023 and #84 in FY2024; up 12 since FY2024.
73	Pinao Consulting LLC Top agencies DHA (Defense Health Agency)	$660,000	0.2%	Rank history: not on the FY2021–FY2023 lists and #89 in FY2024; up 16 since FY2024.
74	Health Research and Analysis, LLC Top agencies HHS (Department of Health and Human Services)	$641,783	0.2%	Rank history: #64 in FY2021, #75 in FY2022, #69 in FY2023 and not on the FY2024 list; up 47 since FY2024.
75	Merrick & Company Top agencies USAF (Department of the Air Force)	$595,947	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
76	Prevailance Inc. Top agencies Navy (Department of the Navy)	$530,186	0.1%	Rank history: not on the FY2021 list, #89 in FY2022, #92 in FY2023 and #98 in FY2024; up 22 since FY2024.
77	National Academy of Sciences Top agencies HHS (Department of Health and Human Services) Army (Department of the Army) DHA (Defense Health Agency)	$527,642	0.1%	Rank history: #39 in FY2021, not on the FY2022 list, #27 in FY2023 and #78 in FY2024; up 1 since FY2024.
78	A-G Associates, Inc. Top agencies DHRA (Defense Human Resources Activity)	$473,481	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
79	Totally Joined for Achieving Collaborative Techniques (Tjfact), LLC Top agencies Army (Department of the Army)	$470,394	0.1%	Rank history: #79 in FY2021, #83 in FY2022, #87 in FY2023 and #86 in FY2024; up 7 since FY2024.
80	VG Systems LLC Top agencies DHS (Department of Homeland Security)	$454,684	0.1%	Rank history: not on the FY2021–FY2024 lists; up 23 since FY2024.
81	Guardian Defense Group, Inc. Top agencies Navy (Department of the Navy)	$454,119	0.1%	Rank history: not on the FY2021–FY2022 lists, #99 in FY2023 and not on the FY2024 list; up 23 since FY2024.
82	Research Triangle Institute Top agencies HHS (Department of Health and Human Services)	$437,956	0.1%	Rank history: #50 in FY2021, #21 in FY2022, not on the FY2023 list and #29 in FY2024; down 53 since FY2024.
83	One Federal Solution Corporation Top agencies DCSA (Defense Counterintelligence and Security Agency)	$393,339	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
84	Claxton Logistics Services LLC Top agencies Army (Department of the Army)	$375,804	0.1%	Rank history: #82 in FY2021, #90 in FY2022, #88 in FY2023 and #85 in FY2024; up 1 since FY2024.
85	Liona Enterprises Inc Top agencies DOD (Department of Defense)	$372,600	0.1%	Rank history: not on the FY2021–FY2024 lists; up 24 since FY2024.
86	Technomics Inc. Top agencies DHS (Department of Homeland Security)	$355,612	0.1%	Rank history: not on the FY2021–FY2022 lists, #71 in FY2023 and #74 in FY2024; down 12 since FY2024.
87	Integrated Data Services, LLC Top agencies USAF (Department of the Air Force)	$342,306	0.1%	Rank history: not on the FY2021–FY2024 lists; up 36 since FY2024.
88	Personnel Decisions Research Institutes, LLC Top agencies DHS (Department of Homeland Security)	$314,111	0.1%	Rank history: not on the FY2021–FY2024 lists; up 38 since FY2024.
89	Deftec Corporation Top agencies DHS (Department of Homeland Security)	$313,904	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
90	National Institute of Statistical Sciences Top agencies USDA (Department of Agriculture)	$284,516	0.1%	Rank history: not on the FY2021–FY2024 lists; up 23 since FY2024.
91	Tetra Tech, Inc. 2 awardees, including Pro-Telligent, LLC and RPS Group, Inc. Top agencies DOS (Department of State) DOI (Department of the Interior)	$283,642	0.1%	Rank history: not on the FY2021–FY2024 lists; up 75 since FY2024.
92	Areli Inc. Top agencies Army (Department of the Army)	$270,099	0.1%	Rank history: not on the FY2021–FY2023 lists and #100 in FY2024; up 8 since FY2024.
93	Fort Belknap Indian Community Through Buffalo Horse Inc. Top agencies Treasury (Department of the Treasury)	$251,826	0.1%	Rank history: not on the FY2021–FY2024 lists; up 29 since FY2024.
94	Vector Psychometric Group, LLC Top agencies VA (Department of Veterans Affairs)	$250,000	0.1%	Rank history: not on the FY2021–FY2022 lists, #75 in FY2023 and #81 in FY2024; down 13 since FY2024.
95	Alluvionic Inc. Top agencies Navy (Department of the Navy)	$249,967	0.1%	Rank history: not on the FY2021–FY2024 lists; up 21 since FY2024.
96	LMI Consulting, LLC Top agencies USDA (Department of Agriculture)	$245,770	0.1%	Rank history: not on the FY2021–FY2022 lists, #53 in FY2023 and #82 in FY2024; down 14 since FY2024.
97	University of South Florida Institute of Applied Engineering, Incorporated Top agencies USAF (Department of the Air Force)	$231,326	0.1%	Rank history: not on the FY2021–FY2023 lists and #88 in FY2024; down 9 since FY2024.
98	Velos LLC Top agencies DCSA (Defense Counterintelligence and Security Agency)	$222,421	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
99	Ipsos Public Affairs, LLC Top agencies VA (Department of Veterans Affairs)	$217,444	0.1%	Rank history: not on the FY2021–FY2023 lists and #99 in FY2024; unchanged since FY2024.
100	University of Arizona Top agencies Navy (Department of the Navy)	$199,905	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 33 since FY2024.

Show 75 more

100 of 157 contractors listed here. See the rest on GovTribe.

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 $406 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

Who were the top 10 PSC R405 contractors in FY2025?

1. Leidos Holdings, Inc. ($51.3M), 2. Human Resources Research Organization (Humrro) ($36.7M), 3. Accenture Federal Services LLC ($20.3M), 4. Computational Physics, Inc. ($15.5M), 5. Deloitte ($12.7M), 6. Amentum Holdings, Inc. ($12.3M), 7. Titan Alpha LLC ($10.7M), 8. American Institutes for Research In the Behavioral Sciences ($10.4M), 9. American Systems Corporation ($9.97M), 10. Applied Research Associates, Inc. ($9.59M).

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