Top 100 Contractors in PSC R425: Engineering and Technical Services, FY2025

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Lockheed Martin Corporation 26 awardees, including Lockheed Martin Services, LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$1,393,332,090	3.8%	Rank history: #3 in FY2021, #2 in FY2022, #1 in FY2023 and #1 in FY2024; unchanged since FY2024.
2	Northrop Grumman Corporation 31 awardees, including Northrop Grumman Systems Corporation Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$1,336,244,145	3.7%	Rank history: #4 in FY2021, #6 in FY2022, #4 in FY2023 and #4 in FY2024; up 2 since FY2024.
3	The Aerospace Corporation Top agencies USAF (Department of the Air Force) Commerce (Department of Commerce) DOT (Department of Transportation)	$1,248,942,456	3.4%	Rank history: #5 in FY2021, #4 in FY2022, #3 in FY2023 and #2 in FY2024; down 1 since FY2024.
4	CACI International Inc. 10 awardees, including Caci, Inc. - Federal, Caci Technologies, LLC and Caci Nss, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$1,192,683,571	3.3%	Rank history: #13 in FY2021, #14 in FY2022, #12 in FY2023 and #6 in FY2024; up 2 since FY2024.
5	Amentum Holdings, Inc. 8 awardees, including Amentum Services, Inc., JT4 LLC and Amentum Technology, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) NASA (National Aeronautics and Space Administration)	$1,105,194,655	3.0%	Rank history: not on the FY2021–FY2024 lists; up 125 since FY2024.
6	Chemonics International, Inc. Top agencies USAID (US Agency for International Development)	$1,082,448,454	3.0%	Rank history: #1 in FY2021, #1 in FY2022, #5 in FY2023 and #3 in FY2024; down 3 since FY2024.
7	Booz Allen Hamilton Holding Corporation 3 awardees, including Booz Allen Hamilton Inc., Ultra Electronics Advanced Tactical Systems Inc. and Aquilent, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DISA (Defense Information Systems Agency)	$1,007,492,921	2.8%	Rank history: #7 in FY2021, #5 in FY2022, #2 in FY2023 and #5 in FY2024; down 2 since FY2024.
8	RTX Corporation 42 awardees, including Range Generation Next LLC, Raytheon Company and Rockwell Collins, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$937,413,357	2.6%	Rank history: #2 in FY2021, #3 in FY2022, #9 in FY2023 and #8 in FY2024; unchanged since FY2024.
9	Leidos Holdings, Inc. 14 awardees, including Leidos, Inc., Dynetics, Inc. and Leidos Security Detection & Automation, Inc. Top agencies Army (Department of the Army) DOE (Department of Energy) USAF (Department of the Air Force)	$833,428,020	2.3%	Rank history: #6 in FY2021, #9 in FY2022, #14 in FY2023 and #9 in FY2024; unchanged since FY2024.
10	The Mitre Corporation 2 awardees Top agencies USAF (Department of the Air Force) DOT (Department of Transportation) Commerce (Department of Commerce)	$737,816,793	2.0%	Rank history: #11 in FY2021, #10 in FY2022, #11 in FY2023 and #10 in FY2024; unchanged since FY2024.
11	General Dynamics Corporation 18 awardees, including General Dynamics Information Technology, Inc., General Dynamics Global Force, LLC and General Dynamics Land Systems Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$737,058,893	2.0%	Rank history: #10 in FY2021, #8 in FY2022, #7 in FY2023 and #11 in FY2024; unchanged since FY2024.
12	Science Applications International Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DOT (Department of Transportation)	$655,757,487	1.8%	Rank history: #9 in FY2021, #7 in FY2022, #6 in FY2023 and #12 in FY2024; unchanged since FY2024.
13	The Boeing Company 18 awardees, including Boeing Sikorsky Aircraft Support, LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) USSOCOM (United States Special Operations Command)	$640,889,413	1.8%	Rank history: #8 in FY2021, #11 in FY2022, #8 in FY2023 and #7 in FY2024; down 6 since FY2024.
14	Parsons Corporation 5 awardees, including Parsons Government Services Inc., Xator LLC and Parsons Government Services International Inc. Top agencies MDA (DOD Missile Defense Agency) USAF (Department of the Air Force) DOS (Department of State)	$624,991,715	1.7%	Rank history: #20 in FY2021, #19 in FY2022, #17 in FY2023 and #16 in FY2024; up 2 since FY2024.
15	BAE Systems 12 awardees, including BAE Systems Information and Electronic Systems Integration Inc., BAE Systems Land & Armaments L.P. and BAE Systems Technology Solutions & Services Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$563,018,260	1.5%	Rank history: #17 in FY2021, #13 in FY2022, #10 in FY2023 and #14 in FY2024; down 1 since FY2024.
16	L3Harris Technologies, Inc. 26 awardees, including L3Harris Technologies Integrated Systems L.P., L3 Technologies, Inc. and L3Harris Forcex, Inc. Top agencies USAF (Department of the Air Force) USSOCOM (United States Special Operations Command) Army (Department of the Army)	$552,759,079	1.5%	Rank history: #12 in FY2021, #12 in FY2022, #13 in FY2023 and #15 in FY2024; down 1 since FY2024.
17	Beyond New Horizons, LLC Top agencies USAF (Department of the Air Force)	$496,146,005	1.4%	Rank history: not on the FY2021–FY2024 lists; up 271 since FY2024.
18	General Atomics Aeronautical Systems, Inc. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) Navy (Department of the Navy)	$442,014,505	1.2%	Rank history: not on the FY2021–FY2023 lists and #56 in FY2024; up 38 since FY2024.
19	Leonardo S.p.A. 7 awardees, including DRS Sustainment Systems, Inc., Laurel Technologies Partnership and DRS Network & Imaging Systems LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USSOCOM (United States Special Operations Command)	$406,711,769	1.1%	Rank history: #37 in FY2021, #36 in FY2022, #20 in FY2023 and #29 in FY2024; up 10 since FY2024.
20	Huntington Ingalls Industries, Inc. 7 awardees, including HII Mission Technologies Corp, HII Technical Solutions Corporation and HII Fleet Support Group LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$389,523,608	1.1%	Rank history: #36 in FY2021, #25 in FY2022, #19 in FY2023 and #17 in FY2024; down 3 since FY2024.
21	Odyssey Systems Consulting Group, Ltd. Top agencies USAF (Department of the Air Force)	$340,828,421	0.9%	Rank history: #87 in FY2021, not on the FY2022 list, #92 in FY2023 and not on the FY2024 list; up 158 since FY2024.
22	Torch Technologies Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$307,764,811	0.8%	Rank history: #15 in FY2021, #24 in FY2022, #21 in FY2023 and #24 in FY2024; up 2 since FY2024.
23	Microsoft Corporation Top agencies Navy (Department of the Navy) Army (Department of the Army) DISA (Defense Information Systems Agency)	$285,482,260	0.8%	Rank history: #21 in FY2021, #23 in FY2022, #24 in FY2023 and #19 in FY2024; down 4 since FY2024.
24	Serco Inc Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$279,597,312	0.8%	Rank history: not on the FY2021–FY2022 lists, #35 in FY2023 and #26 in FY2024; up 2 since FY2024.
25	BAE Systems Land & Armaments L.P. Top agencies Army (Department of the Army)	$253,659,606	0.7%	Rank history: not on the FY2021–FY2023 lists and #30 in FY2024; up 5 since FY2024.
26	KBR Wyle Services LLC 6 awardees, including KBR Services, LLC and Kord Technologies, LLC Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy) DOT (Department of Transportation)	$244,862,564	0.7%	Rank history: not on the FY2021–FY2023 lists and #32 in FY2024; up 6 since FY2024.
27	Arctic Slope Regional Corporation 18 awardees, including Agile Decision Sciences, LLC, Asrc Federal System Solutions LLC and Netcentric Technology, LLC Top agencies USAF (Department of the Air Force) DOT (Department of Transportation) Army (Department of the Army)	$239,299,424	0.7%	Rank history: #29 in FY2021, #29 in FY2022, #38 in FY2023 and #44 in FY2024; up 17 since FY2024.
28	Scientific Research Corporation Top agencies Navy (Department of the Navy) OSD (Office of the Secretary of Defense) USAF (Department of the Air Force)	$203,041,090	0.6%	Rank history: not on the FY2021–FY2022 lists, #58 in FY2023 and #40 in FY2024; up 12 since FY2024.
29	ManTech International Corporation 2 awardees, including Mantech Advanced Systems International, Inc. and Unison Software Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) DOS (Department of State)	$200,968,512	0.5%	Rank history: #18 in FY2021, #16 in FY2022, #30 in FY2023 and #36 in FY2024; up 7 since FY2024.
30	Intuitive Research and Technology Corporation Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$182,281,748	0.5%	Rank history: #33 in FY2021, #58 in FY2022, #54 in FY2023 and #47 in FY2024; up 17 since FY2024.
31	Oasis Systems, LLC Top agencies USAF (Department of the Air Force)	$181,458,944	0.5%	Rank history: not on the FY2021 list, #34 in FY2022, #36 in FY2023 and #39 in FY2024; up 8 since FY2024.
32	SRC Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$160,892,502	0.4%	Rank history: #55 in FY2021, #48 in FY2022, #31 in FY2023 and #25 in FY2024; down 7 since FY2024.
33	Sev1Tech, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$160,145,204	0.4%	Rank history: #39 in FY2021, #44 in FY2022, #45 in FY2023 and #53 in FY2024; up 20 since FY2024.
34	Path Top agencies USAID (US Agency for International Development)	$157,716,684	0.4%	Rank history: not on the FY2021–FY2024 lists; up 200 since FY2024.
35	Systems Planning and Analysis, Inc. Top agencies Navy (Department of the Navy) DTRA (Defense Threat Reduction Agency) OSD (Office of the Secretary of Defense)	$149,660,959	0.4%	Rank history: #64 in FY2021, #43 in FY2022, #46 in FY2023 and #41 in FY2024; up 6 since FY2024.
36	ABT Global LLC Top agencies USAID (US Agency for International Development) HHS (Department of Health and Human Services) DOE (Department of Energy)	$149,036,232	0.4%	Rank history: #25 in FY2021, #31 in FY2022, #42 in FY2023 and #38 in FY2024; up 2 since FY2024.
37	Accenture Federal Services LLC 2 awardees, including Cognosante MVH LLC Top agencies Treasury (Department of the Treasury) USAF (Department of the Air Force) Army (Department of the Army)	$146,878,849	0.4%	Rank history: not on the FY2021–FY2023 lists and #34 in FY2024; down 3 since FY2024.
38	Trace Systems, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$146,158,457	0.4%	Rank history: not on the FY2021–FY2024 lists; up 201 since FY2024.
39	Oshkosh Corporation Through Oshkosh Defense LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$137,248,406	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
40	Credence Management Solutions Limited Liability Company Top agencies USAID (US Agency for International Development) USAF (Department of the Air Force)	$135,939,827	0.4%	Rank history: #71 in FY2021, #41 in FY2022, #29 in FY2023 and #31 in FY2024; down 9 since FY2024.
41	V2X, Inc. 5 awardees, including V2X Aerospace LLC, V2X Systems LLC and Vertex Modernization and Sustainment LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$132,352,233	0.4%	Rank history: not on the FY2021–FY2023 lists and #57 in FY2024; up 16 since FY2024.
42	P E Systems, Inc. Top agencies USAF (Department of the Air Force)	$127,717,309	0.3%	Rank history: #59 in FY2021, #92 in FY2022, #71 in FY2023 and #78 in FY2024; up 36 since FY2024.
43	CQ JV, LLC Top agencies USAF (Department of the Air Force)	$125,875,775	0.3%	Rank history: not on the FY2021 list, #54 in FY2022, #62 in FY2023 and #64 in FY2024; up 21 since FY2024.
44	Mag DS Corp Top agencies Army (Department of the Army)	$125,393,396	0.3%	Rank history: not on the FY2021–FY2023 lists and #43 in FY2024; down 1 since FY2024.
45	Linquest Corporation Top agencies USAF (Department of the Air Force)	$124,961,413	0.3%	Rank history: #35 in FY2021, #42 in FY2022, #44 in FY2023 and #49 in FY2024; up 4 since FY2024.
46	Applied Research Associates, Inc. Top agencies Army (Department of the Army) DTRA (Defense Threat Reduction Agency) DHS (Department of Homeland Security)	$114,526,956	0.3%	Rank history: #60 in FY2021, #39 in FY2022, #34 in FY2023 and #50 in FY2024; up 4 since FY2024.
47	Deloitte 2 awardees, including Deloitte Consulting LLP and Deloitte & Touche LLP Top agencies Navy (Department of the Navy) HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$110,878,422	0.3%	Rank history: not on the FY2021–FY2023 lists and #35 in FY2024; down 12 since FY2024.
48	Anduril Industries Inc. 3 awardees, including Area-I, LLC Top agencies USSOCOM (United States Special Operations Command) USAF (Department of the Air Force) OSD (Office of the Secretary of Defense)	$106,580,532	0.3%	Rank history: not on the FY2021–FY2022 lists, #79 in FY2023 and #37 in FY2024; down 11 since FY2024.
49	Peraton Inc. 2 awardees, including Peraton Enterprise Solutions LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$100,633,668	0.3%	Rank history: not on the FY2021–FY2023 lists and #62 in FY2024; up 13 since FY2024.
50	Bell Boeing Joint Project Office Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$95,700,530	0.3%	Rank history: not on the FY2021–FY2023 lists and #45 in FY2024; down 5 since FY2024.
51	Georgia TECH Applied Research Corp Top agencies USAF (Department of the Air Force)	$95,534,495	0.3%	Rank history: not on the FY2021–FY2023 lists and #67 in FY2024; up 16 since FY2024.
52	QED Systems LLC Top agencies Army (Department of the Army)	$95,055,376	0.3%	Rank history: #51 in FY2021, #66 in FY2022, #50 in FY2023 and not on the FY2024 list; up 62 since FY2024.
53	Intrepid LLC Top agencies Army (Department of the Army)	$94,801,698	0.3%	Rank history: not on the FY2021–FY2023 lists and #61 in FY2024; up 8 since FY2024.
54	Tetra Tech, Inc. 10 awardees, including LS Technologies LLC, Management Systems International, Inc. and Tetra TECH MA, Inc. Top agencies DOT (Department of Transportation) USAID (US Agency for International Development) USAF (Department of the Air Force)	$93,765,390	0.3%	Rank history: #85 in FY2021, #95 in FY2022, #72 in FY2023 and #46 in FY2024; down 8 since FY2024.
55	Aerodyne-Sgt Engineering Services, LLC Top agencies NASA (National Aeronautics and Space Administration)	$92,786,066	0.3%	Rank history: not on the FY2021–FY2022 lists, #41 in FY2023 and #55 in FY2024; unchanged since FY2024.
56	Noblis, Inc. Top agencies DOT (Department of Transportation) USAF (Department of the Air Force)	$92,099,391	0.3%	Rank history: #42 in FY2021, #33 in FY2022, #33 in FY2023 and #52 in FY2024; down 4 since FY2024.
57	Consortium Management Group, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$91,422,432	0.2%	Rank history: not on the FY2021 list, #70 in FY2022, #63 in FY2023 and #58 in FY2024; up 1 since FY2024.
58	DCS Corporation Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$90,322,018	0.2%	Rank history: #28 in FY2021, #28 in FY2022, #27 in FY2023 and #54 in FY2024; down 4 since FY2024.
59	Delphinus Engineering LLC Top agencies Navy (Department of the Navy)	$89,789,451	0.2%	Rank history: #53 in FY2021, #50 in FY2022, #87 in FY2023 and #84 in FY2024; up 25 since FY2024.
60	CORE4CE LLC Top agencies DHA (Defense Health Agency) Navy (Department of the Navy)	$88,075,412	0.2%	Rank history: not on the FY2021–FY2023 lists and #59 in FY2024; down 1 since FY2024.
61	Sigmatech Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$87,819,276	0.2%	Rank history: not on the FY2021–FY2023 lists and #77 in FY2024; up 16 since FY2024.
62	Energy Technology Alliance LLC Top agencies DOE (Department of Energy)	$85,739,358	0.2%	Rank history: not on the FY2021–FY2023 lists and #48 in FY2024; down 14 since FY2024.
63	The Johns Hopkins University Applied Physics Laboratory LLC Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) USCYBERCOM (Department of Defense Cyber Command)	$84,734,008	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
64	Space Network Solutions LLC Top agencies NASA (National Aeronautics and Space Administration)	$83,683,725	0.2%	Rank history: not on the FY2021–FY2023 lists and #42 in FY2024; down 22 since FY2024.
65	Karsun Solutions LLC Top agencies DOT (Department of Transportation)	$81,135,882	0.2%	Rank history: #63 in FY2021, #67 in FY2022, #67 in FY2023 and #80 in FY2024; up 15 since FY2024.
66	Mayvin, Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army) Navy (Department of the Navy)	$80,611,205	0.2%	Rank history: not on the FY2021 list, #81 in FY2022, #83 in FY2023 and #89 in FY2024; up 23 since FY2024.
67	Colsa Corp Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$80,549,673	0.2%	Rank history: #22 in FY2021, #45 in FY2022, #61 in FY2023 and #63 in FY2024; down 4 since FY2024.
68	Raytheon / Lockheed Martin Javelin JV Top agencies Army (Department of the Army)	$74,822,427	0.2%	Rank history: not on the FY2021–FY2024 lists; up 141 since FY2024.
69	Bowhead Program Management & Operations, LLC Top agencies Navy (Department of the Navy)	$74,542,513	0.2%	Rank history: not on the FY2021–FY2022 lists, #77 in FY2023 and #73 in FY2024; up 4 since FY2024.
70	Palantir Technologies Inc. 2 awardees, including Palantir USG Inc. Top agencies Army (Department of the Army) OSD (Office of the Secretary of Defense) WHS (DOD Washington Headquarters Service)	$73,501,528	0.2%	Rank history: not on the FY2021–FY2023 lists and #97 in FY2024; up 27 since FY2024.
71	Noblis MSD LLC Top agencies Navy (Department of the Navy)	$71,416,269	0.2%	Rank history: not on the FY2021–FY2023 lists and #75 in FY2024; up 4 since FY2024.
72	Gryphon Technologies L.C. Top agencies Navy (Department of the Navy)	$71,381,564	0.2%	Rank history: not on the FY2021–FY2023 lists and #60 in FY2024; down 12 since FY2024.
73	Reliability & Performance Technologies, LLC Top agencies Navy (Department of the Navy)	$70,399,571	0.2%	Rank history: not on the FY2021–FY2024 lists; up 58 since FY2024.
74	Axient LLC Top agencies USAF (Department of the Air Force)	$70,197,990	0.2%	Rank history: #31 in FY2021, #56 in FY2022, #60 in FY2023 and #65 in FY2024; down 9 since FY2024.
75	Vsolvit LLC Top agencies Navy (Department of the Navy)	$68,990,889	0.2%	Rank history: not on the FY2021–FY2024 lists; up 30 since FY2024.
76	Janus Research Group, LLC Top agencies Army (Department of the Army)	$68,903,705	0.2%	Rank history: #89 in FY2021, #90 in FY2022 and not on the FY2023–FY2024 lists; up 42 since FY2024.
77	Simventions Inc. Top agencies Navy (Department of the Navy)	$68,255,968	0.2%	Rank history: #99 in FY2021, #83 in FY2022, #85 in FY2023 and #85 in FY2024; up 8 since FY2024.
78	Sigma Defense Systems LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DISA (Defense Information Systems Agency)	$67,839,998	0.2%	Rank history: not on the FY2021–FY2022 lists, #57 in FY2023 and #87 in FY2024; up 9 since FY2024.
79	Bwxt Enrichment Operations, LLC Top agencies DOE (Department of Energy)	$67,000,000	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
80	Teledyne Technologies Incorporated 4 awardees, including Teledyne Brown Engineering, Inc., Teledyne Flir Defense, LLC and Teledyne Reson Inc. Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$66,524,237	0.2%	Rank history: #81 in FY2021, #94 in FY2022, #68 in FY2023 and #82 in FY2024; up 2 since FY2024.
81	Sumaria Systems, LLC Top agencies USAF (Department of the Air Force)	$66,396,374	0.2%	Rank history: not on the FY2021 list, #88 in FY2022, #94 in FY2023 and not on the FY2024 list; up 48 since FY2024.
82	Agile Defense, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$66,316,201	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
83	Falconwood Top agencies Navy (Department of the Navy)	$66,013,820	0.2%	Rank history: #84 in FY2021, #76 in FY2022, #76 in FY2023 and #91 in FY2024; up 8 since FY2024.
84	Resource Management Concepts, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$65,930,145	0.2%	Rank history: not on the FY2021–FY2024 lists; up 53 since FY2024.
85	MP Solutions, LLC Top agencies MDA (DOD Missile Defense Agency) OSD (Office of the Secretary of Defense)	$65,324,430	0.2%	Rank history: not on the FY2021 list, #69 in FY2022, #82 in FY2023 and #66 in FY2024; down 19 since FY2024.
86	Southwest Range Services LLC Top agencies Army (Department of the Army)	$65,063,826	0.2%	Rank history: #66 in FY2021, #59 in FY2022, #75 in FY2023 and #76 in FY2024; down 10 since FY2024.
87	Fairwinds Technologies LLC Top agencies Army (Department of the Army) DHS (Department of Homeland Security)	$64,822,391	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
88	Rsi-Quantitech JV LLC Top agencies NASA (National Aeronautics and Space Administration)	$64,422,632	0.2%	Rank history: not on the FY2021–FY2023 lists and #95 in FY2024; up 7 since FY2024.
89	Cherokee Nation Strategic Programs, L.L.C. Top agencies DOS (Department of State) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$64,335,913	0.2%	Rank history: not on the FY2021–FY2024 lists; up 66 since FY2024.
90	American Systems Corporation 2 awardees Top agencies Navy (Department of the Navy) OSD (Office of the Secretary of Defense) USAF (Department of the Air Force)	$64,035,996	0.2%	Rank history: #57 in FY2021, #78 in FY2022, #59 in FY2023 and #70 in FY2024; down 20 since FY2024.
91	Utah State University Space Dynamics Laboratory Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$63,569,777	0.2%	Rank history: not on the FY2021–FY2024 lists; up 289 since FY2024.
92	Mantech SRS Technologies, Inc. Top agencies USAF (Department of the Air Force)	$63,492,134	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
93	Indus Technology Inc. Top agencies Navy (Department of the Navy)	$62,625,218	0.2%	Rank history: #96 in FY2021, #99 in FY2022, #90 in FY2023 and #88 in FY2024; down 5 since FY2024.
94	Aviation Systems Engineering Company Inc. Top agencies Navy (Department of the Navy)	$62,592,105	0.2%	Rank history: not on the FY2021–FY2023 lists and #93 in FY2024; down 1 since FY2024.
95	Valiant Global Defense Services Inc. Top agencies Army (Department of the Army)	$62,106,681	0.2%	Rank history: not on the FY2021–FY2024 lists; up 161 since FY2024.
96	Modern Technology Solutions, Inc. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) Navy (Department of the Navy)	$60,406,901	0.2%	Rank history: #62 in FY2021, #68 in FY2022, #93 in FY2023 and not on the FY2024 list; up 26 since FY2024.
97	Honeywell International Inc. 7 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force) GSA (General Services Administration)	$60,192,799	0.2%	Rank history: not on the FY2021 list, #86 in FY2022, #66 in FY2023 and #81 in FY2024; down 16 since FY2024.
98	T-Solutions, Inc. Top agencies Navy (Department of the Navy)	$59,569,873	0.2%	Rank history: #79 in FY2021 and not on the FY2022–FY2024 lists; up 78 since FY2024.
99	Avantus Federal LLC Top agencies DHS (Department of Homeland Security)	$57,175,266	0.2%	Rank history: not on the FY2021–FY2024 lists; up 33 since FY2024.
100	Bowhead Enterprise, Science and Technology, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$56,169,081	0.2%	Rank history: not on the FY2021–FY2024 lists; up 47 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 $36.6 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