Top 100 Contractors in PSC R799: Other Management Support Services, FY2025

Name: Top 100 Contractors in PSC R799: Other Management Support Services, FY2025
Creator: GovTribe

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

The top 10 won 32% of FY2025 PSC R799 contract dollars

Contract obligations: $3,052,167,850 Net of deobligations, by contracts coded PSC R799
Contractors: 1,121 Parent companies with an obligation
Largest contractor: Booz Allen Hamilton Holding Corporation $213 million, 6.4% 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	Booz Allen Hamilton Holding Corporation 2 awardees, including Booz Allen Hamilton Inc. Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy) USAF (Department of the Air Force)	$212,591,923	6.4%	Rank history: #1 in FY2021, #3 in FY2022, #1 in FY2023 and #1 in FY2024; unchanged since FY2024.
2	Fluor Corporation 2 awardees, including Fluor Federal Petroleum Operations, LLC and Fluor Intercontinental, Inc. Top agencies DOE (Department of Energy) DTRA (Defense Threat Reduction Agency)	$170,790,131	5.1%	Rank history: #5 in FY2021, #1 in FY2022, #5 in FY2023 and #2 in FY2024; unchanged since FY2024.
3	Leidos Holdings, Inc. 5 awardees, including Leidos, Inc. Top agencies DISA (Defense Information Systems Agency) DOJ (Department of Justice) HHS (Department of Health and Human Services)	$149,267,638	4.5%	Rank history: #8 in FY2021, #4 in FY2022, #4 in FY2023 and #4 in FY2024; up 1 since FY2024.
4	Arctic Slope Regional Corporation 5 awardees, including RSI Entech, LLC, Asrc Federal Technology Solutions, LLC and Asrc Federal Professional Services, LLC Top agencies DOE (Department of Energy) Commerce (Department of Commerce) USAF (Department of the Air Force)	$139,080,384	4.2%	Rank history: #25 in FY2021, #66 in FY2022, #82 in FY2023 and not on the FY2024 list; up 180 since FY2024.
5	Northrop Grumman Corporation 5 awardees, including Northrop Grumman Systems Corporation Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$98,511,555	2.9%	Rank history: #6 in FY2021, #2 in FY2022, #3 in FY2023 and #7 in FY2024; up 2 since FY2024.
6	Avantus Federal LLC Top agencies USAF (Department of the Air Force)	$68,642,948	2.1%	Rank history: #34 in FY2021, #30 in FY2022, #15 in FY2023 and #12 in FY2024; up 6 since FY2024.
7	The Boeing Company 3 awardees Top agencies USAF (Department of the Air Force)	$58,349,498	1.7%	Rank history: #10 in FY2021, #8 in FY2022, #13 in FY2023 and #10 in FY2024; up 3 since FY2024.
8	National Security Technology Accelerator Inc. Top agencies WHS (DOD Washington Headquarters Service)	$56,445,383	1.7%	Rank history: #43 in FY2021, #26 in FY2022, #25 in FY2023 and #39 in FY2024; up 31 since FY2024.
9	Noblis, Inc. Top agencies DTRA (Defense Threat Reduction Agency)	$54,272,338	1.6%	Rank history: #59 in FY2021, #11 in FY2022, #18 in FY2023 and #9 in FY2024; unchanged since FY2024.
10	The Mitre Corporation Top agencies VA (Department of Veterans Affairs) Commerce (Department of Commerce) DHA (Defense Health Agency)	$52,041,796	1.6%	Rank history: #7 in FY2021, #5 in FY2022, #2 in FY2023 and #6 in FY2024; down 4 since FY2024.
11	Deloitte 3 awardees, including Deloitte Consulting LLP, Deloitte Financial Advisory Services LLP and Deloitte & Touche LLP Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice) DISA (Defense Information Systems Agency)	$51,478,522	1.5%	Rank history: #3 in FY2021, #7 in FY2022, #7 in FY2023 and #3 in FY2024; down 8 since FY2024.
12	CACI International Inc. 3 awardees, including Caci, LLC - Commercial and Caci Technologies, LLC Top agencies DOJ (Department of Justice) Navy (Department of the Navy)	$44,127,088	1.3%	Rank history: #11 in FY2021, not on the FY2022 list, #14 in FY2023 and not on the FY2024 list; up 212 since FY2024.
13	KBR Wyle Services, LLC Top agencies Army (Department of the Army)	$43,019,873	1.3%	Rank history: not on the FY2021–FY2023 lists and #36 in FY2024; up 23 since FY2024.
14	Amentum Services, Inc. Through PAE Labat-Anderson LLC Top agencies DOJ (Department of Justice)	$42,253,010	1.3%	Rank history: not on the FY2021–FY2023 lists and #14 in FY2024; unchanged since FY2024.
15	Huntington Ingalls Industries, Inc. Through HII Mission Technologies Corp Top agencies USAF (Department of the Air Force)	$41,114,226	1.2%	Rank history: not on the FY2021–FY2024 lists; new.
16	Ernst & Young LLP 2 awardees Top agencies DOT (Department of Transportation) DOJ (Department of Justice)	$39,764,236	1.2%	Rank history: not on the FY2021–FY2022 lists, #20 in FY2023 and #17 in FY2024; up 1 since FY2024.
17	Vets Synergetic Group LLC Top agencies HHS (Department of Health and Human Services)	$39,139,780	1.2%	Rank history: not on the FY2021–FY2023 lists and #53 in FY2024; up 36 since FY2024.
18	General Dynamics Corporation 2 awardees, including General Dynamics Information Technology, Inc. Top agencies Navy (Department of the Navy) Commerce (Department of Commerce)	$35,030,332	1.0%	Rank history: #20 in FY2021, #17 in FY2022, #43 in FY2023 and #22 in FY2024; up 4 since FY2024.
19	Lynker Corporation Top agencies Commerce (Department of Commerce)	$28,100,249	0.8%	Rank history: not on the FY2021–FY2023 lists and #43 in FY2024; up 24 since FY2024.
20	Oak Ridge Associated Universities, Incorporated Top agencies NASA (National Aeronautics and Space Administration)	$25,305,631	0.8%	Rank history: not on the FY2021 list, #29 in FY2022, #24 in FY2023 and #28 in FY2024; up 8 since FY2024.
21	McKesson Corporation Through Ndchealth Corporation Top agencies HHS (Department of Health and Human Services)	$25,100,000	0.8%	Rank history: not on the FY2021–FY2024 lists; new.
22	Guidehouse Inc. 3 awardees, including Guidehouse Digital LLC Top agencies Commerce (Department of Commerce) DOS (Department of State) DFC (International Development Finance Corporation)	$24,496,108	0.7%	Rank history: not on the FY2021–FY2024 lists; new.
23	Koniag, Inc. Through Kadiak LLC Top agencies DOE (Department of Energy) DHS (Department of Homeland Security)	$21,662,204	0.6%	Rank history: #64 in FY2021, #60 in FY2022, #31 in FY2023 and not on the FY2024 list; up 93 since FY2024.
24	U.S. Marine Management LLC Top agencies Army (Department of the Army)	$20,792,156	0.6%	Rank history: not on the FY2021–FY2023 lists and #63 in FY2024; up 39 since FY2024.
25	Fusion Technology LLC Top agencies DOJ (Department of Justice)	$20,695,751	0.6%	Rank history: not on the FY2021–FY2023 lists and #19 in FY2024; down 6 since FY2024.
26	Western Door Federal, LLC Top agencies DHA (Defense Health Agency)	$20,231,555	0.6%	Rank history: not on the FY2021 list, #98 in FY2022, #42 in FY2023 and #21 in FY2024; down 5 since FY2024.
27	Igniteaction LLC Top agencies Commerce (Department of Commerce)	$20,120,187	0.6%	Rank history: not on the FY2021–FY2024 lists; up 276 since FY2024.
28	Vidoori Inc. Top agencies Commerce (Department of Commerce)	$19,168,975	0.6%	Rank history: not on the FY2021–FY2023 lists and #45 in FY2024; up 17 since FY2024.
29	Itility, L.l.c Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security)	$18,996,094	0.6%	Rank history: #39 in FY2021, #75 in FY2022, #65 in FY2023 and #31 in FY2024; up 2 since FY2024.
30	Digital Management LLC Top agencies Army (Department of the Army)	$18,660,596	0.6%	Rank history: not on the FY2021–FY2022 lists, #48 in FY2023 and #44 in FY2024; up 14 since FY2024.
31	CGI Federal Inc. 2 awardees, including Sehlke Consulting LLC Top agencies Navy (Department of the Navy) Commerce (Department of Commerce) USAGM (US Agency for Global Media)	$18,336,293	0.5%	Rank history: not on the FY2021–FY2024 lists; up 97 since FY2024.
32	Madian It Solutions LLC Top agencies DISA (Defense Information Systems Agency)	$18,307,641	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
33	Call Henry Inc. Top agencies USAF (Department of the Air Force)	$17,790,284	0.5%	Rank history: not on the FY2021–FY2022 lists, #34 in FY2023 and #29 in FY2024; down 4 since FY2024.
34	Spalding Consulting Inc. Top agencies Navy (Department of the Navy)	$17,762,792	0.5%	Rank history: not on the FY2021–FY2023 lists and #35 in FY2024; up 1 since FY2024.
35	Amentum Holdings, Inc. 3 awardees, including PAE Applied Technologies LLC, Amentum Services, Inc. and Amentum Technology, Inc. Top agencies USAF (Department of the Air Force) DTRA (Defense Threat Reduction Agency) Army (Department of the Army)	$17,564,948	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
36	ATI Government Solutions LLC Top agencies Treasury (Department of the Treasury)	$17,106,520	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
37	Cherokee Nation Strategic Programs, L.L.C. Top agencies Treasury (Department of the Treasury) DOE (Department of Energy) DHS (Department of Homeland Security)	$17,080,315	0.5%	Rank history: not on the FY2021–FY2023 lists and #23 in FY2024; down 14 since FY2024.
38	Spatial Front Inc Top agencies Commerce (Department of Commerce)	$16,868,533	0.5%	Rank history: not on the FY2021–FY2022 lists, #38 in FY2023 and #33 in FY2024; down 5 since FY2024.
39	Four Points Technology, L.L.C. Top agencies Commerce (Department of Commerce) VA (Department of Veterans Affairs)	$16,347,179	0.5%	Rank history: not on the FY2021–FY2023 lists and #30 in FY2024; down 9 since FY2024.
40	Accenture Federal Services LLC 2 awardees, including Cognosante Cds, LLC Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency) Treasury (Department of the Treasury)	$15,760,448	0.5%	Rank history: not on the FY2021–FY2024 lists; up 212 since FY2024.
41	RA International Fzco Top agencies USAID (US Agency for International Development)	$15,405,266	0.5%	Rank history: #82 in FY2021, #61 in FY2022, #84 in FY2023 and not on the FY2024 list; up 102 since FY2024.
42	LMI Consulting, LLC Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense) USTRANSCOM (Department of Defense United States Transportation Command)	$15,294,383	0.5%	Rank history: not on the FY2021–FY2022 lists, #72 in FY2023 and #41 in FY2024; down 1 since FY2024.
43	Information Systems & Networks Corporation Top agencies Navy (Department of the Navy)	$14,301,191	0.4%	Rank history: not on the FY2021–FY2023 lists and #20 in FY2024; down 23 since FY2024.
44	Trilogy Innovations Inc. Top agencies DOJ (Department of Justice)	$14,247,938	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
45	ManTech International Corporation Through Unison Software Inc. Top agencies HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$14,237,335	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
46	Chugach Technical Solutions LLC Top agencies Army (Department of the Army) DHS (Department of Homeland Security) Navy (Department of the Navy)	$13,709,251	0.4%	Rank history: not on the FY2021–FY2023 lists and #70 in FY2024; up 24 since FY2024.
47	Savvee Inc. Top agencies Commerce (Department of Commerce) Navy (Department of the Navy)	$13,572,794	0.4%	Rank history: #52 in FY2021, #84 in FY2022, #64 in FY2023 and #48 in FY2024; up 1 since FY2024.
48	Salient Crgt, Inc. Top agencies DHS (Department of Homeland Security)	$13,455,171	0.4%	Rank history: not on the FY2021–FY2024 lists; up 73 since FY2024.
49	Deployed Services, LLC Top agencies DHS (Department of Homeland Security)	$12,755,257	0.4%	Rank history: not on the FY2021–FY2023 lists and #38 in FY2024; down 11 since FY2024.
50	Cayuse Holdings LLC Through Cayuse Technologies, LLC Top agencies DOS (Department of State)	$12,684,639	0.4%	Rank history: not on the FY2021–FY2023 lists and #34 in FY2024; down 16 since FY2024.
51	Respublikanskoe Gosudarstvennoe Predpriyatie NA Prave Khozyaistvennogo Vedeniya Through Respublikanskoe Gosudarstvennoe Predpriyatie NA Prave Khozyaistvennogo Vedeniya Natsionalnyi Yadernyi Tsentr Respubliki Kazakhstan Ministerstva Energetiki Respubliki Kazakhstan Top agencies DTRA (Defense Threat Reduction Agency)	$12,180,354	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
52	Saliense Consulting LLC Top agencies Commerce (Department of Commerce) Army (Department of the Army)	$11,752,134	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
53	Luhr Crosby, LLC Top agencies Army (Department of the Army)	$11,651,186	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
54	Nakupuna Solutions, LLC Top agencies Navy (Department of the Navy)	$11,648,173	0.3%	Rank history: #47 in FY2021, #37 in FY2022, #46 in FY2023 and #42 in FY2024; down 12 since FY2024.
55	Shorepoint Inc Top agencies Treasury (Department of the Treasury)	$11,313,669	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
56	Mckinsey & Company, Inc. Washington D.c. Top agencies DLA (Defense Logistics Agency)	$11,299,169	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
57	Itsc Secure Solutions, LLC Top agencies USAF (Department of the Air Force)	$11,234,488	0.3%	Rank history: not on the FY2021–FY2024 lists; up 250 since FY2024.
58	Orbis Sibro Inc. Top agencies Navy (Department of the Navy)	$11,116,657	0.3%	Rank history: not on the FY2021–FY2022 lists, #96 in FY2023 and #72 in FY2024; up 14 since FY2024.
59	Cexec, Inc. Top agencies DOT (Department of Transportation)	$11,086,897	0.3%	Rank history: not on the FY2021 list, #54 in FY2022, #50 in FY2023 and #59 in FY2024; unchanged since FY2024.
60	Ipkeys Technologies LLC Top agencies DISA (Defense Information Systems Agency)	$10,969,773	0.3%	Rank history: #42 in FY2021, #31 in FY2022, #32 in FY2023 and #26 in FY2024; down 34 since FY2024.
61	Imagine Believe Realize LLC Top agencies Commerce (Department of Commerce)	$10,923,912	0.3%	Rank history: not on the FY2021–FY2023 lists and #57 in FY2024; down 4 since FY2024.
62	Sierra Nevada Company, LLC Top agencies USAF (Department of the Air Force) USSOCOM (United States Special Operations Command)	$10,765,868	0.3%	Rank history: not on the FY2021–FY2023 lists and #93 in FY2024; up 31 since FY2024.
63	J.r. Reingold & Associates, Inc. Top agencies VA (Department of Veterans Affairs) Commerce (Department of Commerce)	$10,752,727	0.3%	Rank history: #17 in FY2021, #33 in FY2022, #10 in FY2023 and #56 in FY2024; down 7 since FY2024.
64	9Line, LLC Top agencies USAF (Department of the Air Force)	$9,901,817	0.3%	Rank history: #80 in FY2021, #70 in FY2022, #71 in FY2023 and #60 in FY2024; down 4 since FY2024.
65	Tutulu LLC Top agencies USAF (Department of the Air Force)	$9,570,447	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
66	Cherokee Nation Federal Consulting, L.L.C. Top agencies Treasury (Department of the Treasury)	$8,972,456	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
67	Kairos, Inc. Top agencies Navy (Department of the Navy)	$8,761,523	0.3%	Rank history: not on the FY2021 list, #94 in FY2022, #92 in FY2023 and #82 in FY2024; up 15 since FY2024.
68	Professional Contract Services, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$8,471,703	0.3%	Rank history: not on the FY2021–FY2023 lists and #85 in FY2024; up 17 since FY2024.
69	Summome Native Ventures LLC Top agencies HHS (Department of Health and Human Services)	$8,249,420	0.2%	Rank history: not on the FY2021–FY2022 lists, #77 in FY2023 and #13 in FY2024; down 56 since FY2024.
70	Tekpro Support Services, LLC Top agencies Navy (Department of the Navy)	$8,225,754	0.2%	Rank history: #97 in FY2021, not on the FY2022–FY2023 lists and #81 in FY2024; up 11 since FY2024.
71	Metroibr JV LLC Top agencies Commerce (Department of Commerce)	$8,095,114	0.2%	Rank history: not on the FY2021–FY2024 lists; up 77 since FY2024.
72	CWS Marketing Group, Inc. Top agencies Treasury (Department of the Treasury)	$8,048,145	0.2%	Rank history: not on the FY2021–FY2023 lists and #87 in FY2024; up 15 since FY2024.
73	Jefferson Consulting Group LLC Top agencies USDA (Department of Agriculture)	$8,040,740	0.2%	Rank history: not on the FY2021–FY2022 lists, #70 in FY2023 and not on the FY2024 list; up 65 since FY2024.
74	Asgn Incorporated Through ECS Federal, LLC Top agencies Commerce (Department of Commerce)	$7,832,901	0.2%	Rank history: not on the FY2021–FY2024 lists; up 188 since FY2024.
75	Lockheed Martin Corporation 3 awardees Top agencies USAF (Department of the Air Force)	$7,490,612	0.2%	Rank history: #56 in FY2021, #58 in FY2022, #51 in FY2023 and #98 in FY2024; up 23 since FY2024.
76	The Building People LLC Top agencies GSA (General Services Administration) DOJ (Department of Justice) GAO (Government Accountability Office)	$7,458,697	0.2%	Rank history: not on the FY2021–FY2024 lists; up 232 since FY2024.
77	Eagle Hill Consulting LLC Top agencies HHS (Department of Health and Human Services)	$7,338,580	0.2%	Rank history: not on the FY2021–FY2024 lists; up 118 since FY2024.
78	The Craddock Group, LLC Top agencies VA (Department of Veterans Affairs)	$7,258,715	0.2%	Rank history: not on the FY2021–FY2022 lists, #58 in FY2023 and #62 in FY2024; down 16 since FY2024.
79	Human Technologies Corp Top agencies DOS (Department of State)	$7,238,224	0.2%	Rank history: not on the FY2021 list, #49 in FY2022, #73 in FY2023 and #8 in FY2024; down 71 since FY2024.
80	Millennium Health & Fitness, Inc. Top agencies USAF (Department of the Air Force)	$7,176,015	0.2%	Rank history: not on the FY2021–FY2023 lists and #54 in FY2024; down 26 since FY2024.
81	Eagle Harbor, LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$7,112,374	0.2%	Rank history: not on the FY2021 list, #97 in FY2022, #90 in FY2023 and not on the FY2024 list; up 32 since FY2024.
82	D&G Support Services LLC Top agencies DLA (Defense Logistics Agency) DOJ (Department of Justice)	$7,107,444	0.2%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2023 and not on the FY2024 list; up 32 since FY2024.
83	MAG DS Corp. Through Remotely Piloted Solutions, L.L.C. Top agencies USAF (Department of the Air Force)	$7,032,461	0.2%	Rank history: not on the FY2021–FY2023 lists and #77 in FY2024; down 6 since FY2024.
84	Paradyme Solutions, LLC Top agencies Commerce (Department of Commerce)	$7,009,962	0.2%	Rank history: #14 in FY2021, #18 in FY2022, #67 in FY2023 and #78 in FY2024; down 6 since FY2024.
85	Its Consulting Inc. Top agencies Navy (Department of the Navy)	$6,939,233	0.2%	Rank history: not on the FY2021 list, #90 in FY2022 and not on the FY2023–FY2024 lists; up 98 since FY2024.
86	JCS Solutions LLC Top agencies Army (Department of the Army)	$6,931,636	0.2%	Rank history: not on the FY2021–FY2024 lists; up 205 since FY2024.
87	Celeen LLC Top agencies USAF (Department of the Air Force)	$6,905,350	0.2%	Rank history: not on the FY2021–FY2023 lists and #97 in FY2024; up 10 since FY2024.
88	The Manhattan Strategy Group LLC Top agencies USDA (Department of Agriculture)	$6,889,071	0.2%	Rank history: not on the FY2021 list, #45 in FY2022, #55 in FY2023 and #66 in FY2024; down 22 since FY2024.
89	National Telecommuting Institute, Inc. Top agencies Treasury (Department of the Treasury)	$6,863,009	0.2%	Rank history: #86 in FY2021 and not on the FY2022–FY2024 lists; up 23 since FY2024.
90	Tehama ECS LLC Top agencies DLA (Defense Logistics Agency)	$6,671,076	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
91	Wyandotte Technologies Top agencies DOE (Department of Energy)	$6,443,021	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
92	Alpha Omega Integration LLC Top agencies Commerce (Department of Commerce)	$6,369,098	0.2%	Rank history: not on the FY2021 list, #89 in FY2022 and not on the FY2023–FY2024 lists; up 34 since FY2024.
93	Capgemini Government Solutions LLC Top agencies DHS (Department of Homeland Security)	$6,283,305	0.2%	Rank history: not on the FY2021–FY2024 lists; up 18 since FY2024.
94	Alaka`i Services Group Inc. Top agencies DHA (Defense Health Agency)	$6,236,399	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
95	Aeyon LLC Top agencies USAF (Department of the Air Force)	$6,194,977	0.2%	Rank history: not on the FY2021–FY2023 lists and #89 in FY2024; down 6 since FY2024.
96	Expression Networks LLC Top agencies Commerce (Department of Commerce)	$6,098,066	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
97	Breakforth Solutions Incorporated Top agencies DOJ (Department of Justice) Commerce (Department of Commerce)	$5,964,507	0.2%	Rank history: not on the FY2021–FY2024 lists; up 109 since FY2024.
98	Consumer Capital Group Corp. Top agencies Navy (Department of the Navy)	$5,890,000	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
99	DT Global LLC Top agencies USAID (US Agency for International Development) MCC (Millennium Challenge Corporation)	$5,867,000	0.2%	Rank history: not on the FY2021–FY2022 lists, #37 in FY2023 and not on the FY2024 list; up 40 since FY2024.
100	Holitna Construction, LLC Top agencies VA (Department of Veterans Affairs)	$5,760,880	0.2%	Rank history: not on the FY2021–FY2024 lists; up 15 since FY2024.

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100 of 1,121 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 $3.34 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 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 R799 contractors in FY2025?

1. Booz Allen Hamilton Holding Corporation ($213M), 2. Fluor Corporation ($171M), 3. Leidos Holdings, Inc. ($149M), 4. Arctic Slope Regional Corporation ($139M), 5. Northrop Grumman Corporation ($98.5M), 6. Avantus Federal LLC ($68.6M), 7. The Boeing Company ($58.3M), 8. National Security Technology Accelerator Inc. ($56.4M), 9. Noblis, Inc. ($54.3M), 10. The Mitre Corporation ($52M).

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