Top 100 Contractors in PSC R425: Engineering and Technical Services, FY2022

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Chemonics International, Inc. Top agencies USAID (US Agency for International Development)	$1,214,804,693	4.0%	Rank history: #1 in FY2021, #5 in FY2023, #3 in FY2024 and #6 in FY2025; unchanged since FY2021.
2	Lockheed Martin Corporation 29 awardees Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$1,183,249,796	3.9%	Rank history: #3 in FY2021, #1 in FY2023, #1 in FY2024 and #1 in FY2025; up 1 since FY2021.
3	RTX Corporation 51 awardees, including Raytheon Company and Rockwell Collins, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$1,102,363,416	3.6%	Rank history: #2 in FY2021, #9 in FY2023, #8 in FY2024 and #8 in FY2025; down 1 since FY2021.
4	The Aerospace Corporation Top agencies USAF (Department of the Air Force) Commerce (Department of Commerce) DOI (Department of the Interior)	$1,051,059,070	3.4%	Rank history: #5 in FY2021, #3 in FY2023, #2 in FY2024 and #3 in FY2025; up 1 since FY2021.
5	Booz Allen Hamilton Holding Corporation 4 awardees, including Booz Allen Hamilton Inc. and Aquilent, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$964,043,781	3.1%	Rank history: #7 in FY2021, #2 in FY2023, #5 in FY2024 and #7 in FY2025; up 2 since FY2021.
6	Northrop Grumman Corporation 42 awardees, including Northrop Grumman Systems Corporation Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$962,364,257	3.1%	Rank history: #4 in FY2021, #4 in FY2023, #4 in FY2024 and #2 in FY2025; down 2 since FY2021.
7	Science Applications International Corporation 6 awardees Top agencies Navy (Department of the Navy) NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force)	$769,228,907	2.5%	Rank history: #9 in FY2021, #6 in FY2023, #12 in FY2024 and #12 in FY2025; up 2 since FY2021.
8	General Dynamics Corporation 21 awardees, including General Dynamics Global Force, LLC, General Dynamics Information Technology, Inc. and General Dynamics Land Systems Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$769,093,291	2.5%	Rank history: #10 in FY2021, #7 in FY2023, #11 in FY2024 and #11 in FY2025; up 2 since FY2021.
9	Leidos Holdings, Inc. 17 awardees, including Leidos, Inc., Aranea Solutions Inc. and Dynetics, Inc. Top agencies Army (Department of the Army) DOE (Department of Energy) USSOCOM (United States Special Operations Command)	$754,358,241	2.5%	Rank history: #6 in FY2021, #14 in FY2023, #9 in FY2024 and #9 in FY2025; down 3 since FY2021.
10	The Mitre Corporation 2 awardees Top agencies USAF (Department of the Air Force) DOT (Department of Transportation) DHS (Department of Homeland Security)	$668,097,335	2.2%	Rank history: #11 in FY2021, #11 in FY2023, #10 in FY2024 and #10 in FY2025; up 1 since FY2021.
11	The Boeing Company 21 awardees Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$650,229,856	2.1%	Rank history: #8 in FY2021, #8 in FY2023, #7 in FY2024 and #13 in FY2025; down 3 since FY2021.
12	L3Harris Technologies, Inc. 28 awardees, including L3Harris Technologies Integrated Systems L.P., L3 Technologies, Inc. and L3Harris Maritime Services Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$590,062,983	1.9%	Rank history: #12 in FY2021, #13 in FY2023, #15 in FY2024 and #16 in FY2025; unchanged since FY2021.
13	BAE Systems PLC 15 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 Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$530,875,342	1.7%	Rank history: #17 in FY2021, #10 in FY2023, #14 in FY2024 and #15 in FY2025; up 4 since FY2021.
14	CACI International Inc. 10 awardees, including Caci Technologies, LLC, Caci, Inc. - Federal and Caci Nss, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$502,488,247	1.6%	Rank history: #13 in FY2021, #12 in FY2023, #6 in FY2024 and #4 in FY2025; down 1 since FY2021.
15	General Atomic Technologies Corporation 2 awardees, including General Atomics Aeronautical Systems, Inc. and General Atomics Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) DOE (Department of Energy)	$390,189,054	1.3%	Rank history: #14 in FY2021, #18 in FY2023, #20 in FY2024 and not on the FY2025 list; down 1 since FY2021.
16	Mantech International Corporation 8 awardees, including Mantech Advanced Systems International, Inc., Mantech SRS Technologies, Inc. and Gryphon Technologies, L.C. Top agencies Army (Department of the Army) DOS (Department of State) Navy (Department of the Navy)	$375,575,340	1.2%	Rank history: #18 in FY2021, #30 in FY2023, #36 in FY2024 and #29 in FY2025; up 2 since FY2021.
17	Jacobs Engineering Group Inc. 10 awardees, including Amentum Technology, Inc., The Keyw Corporation and Jacobs Government Services Company Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army) USAF (Department of the Air Force)	$365,860,780	1.2%	Rank history: #19 in FY2021, #16 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2021.
18	AECOM 6 awardees, including JT4 LLC, AECOM Technical Services, Inc. and AECOM Usa, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) GSA (General Services Administration)	$355,310,341	1.2%	Rank history: #16 in FY2021, #15 in FY2023, #23 in FY2024 and not on the FY2025 list; down 2 since FY2021.
19	Parsons Corporation 9 awardees, including Parsons Government Services Inc., Polaris Alpha, LLC and Space Ground System Solutions, Inc. Top agencies MDA (DOD Missile Defense Agency) Army (Department of the Army) DOE (Department of Energy)	$351,880,360	1.1%	Rank history: #20 in FY2021, #17 in FY2023, #16 in FY2024 and #14 in FY2025; up 1 since FY2021.
20	Aaski Technology Inc. 2 awardees, including Mag DS Corp Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$299,112,529	1.0%	Rank history: #27 in FY2021, #28 in FY2023 and not on the FY2024–FY2025 lists; up 7 since FY2021.
21	Serco North America (Holdings) Inc 4 awardees, including Serco-Ips Corporation, Serco Inc. and Whitney Bradley & Brown, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) MDA (DOD Missile Defense Agency)	$279,792,616	0.9%	Rank history: #32 in FY2021, #65 in FY2023 and not on the FY2024–FY2025 lists; up 11 since FY2021.
22	Smartronix LLC 2 awardees, including Datastrong, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) DOJ (Department of Justice)	$249,366,489	0.8%	Rank history: #30 in FY2021, #23 in FY2023 and not on the FY2024–FY2025 lists; up 8 since FY2021.
23	Microsoft Corporation Top agencies Navy (Department of the Navy) Army (Department of the Army) DISA (Defense Information Systems Agency)	$245,056,244	0.8%	Rank history: #21 in FY2021, #24 in FY2023, #19 in FY2024 and #23 in FY2025; down 2 since FY2021.
24	Torch Technologies Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) MDA (DOD Missile Defense Agency)	$236,796,631	0.8%	Rank history: #15 in FY2021, #21 in FY2023, #24 in FY2024 and #22 in FY2025; down 9 since FY2021.
25	Huntington Ingalls Industries, Inc. 7 awardees, including HII Mission Technologies Corp and HII Fleet Support Group LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Commerce (Department of Commerce)	$225,021,562	0.7%	Rank history: #36 in FY2021, #19 in FY2023, #17 in FY2024 and #20 in FY2025; up 11 since FY2021.
26	Kbr, Inc. 8 awardees, including KBR Wyle Services, LLC, Kord Technologies, LLC and Avantus Federal LLC Top agencies NASA (National Aeronautics and Space Administration) DOT (Department of Transportation) OSD (Office of the Secretary of Defense)	$214,903,687	0.7%	Rank history: #24 in FY2021, #26 in FY2023, #83 in FY2024 and not on the FY2025 list; down 2 since FY2021.
27	HP Enterprise Services LLC 11 awardees, including Peraton Inc., Dhpc Technologies, Inc. and Peraton Technology Services Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$209,574,289	0.7%	Rank history: #46 in FY2021, #22 in FY2023, #100 in FY2024 and not on the FY2025 list; up 19 since FY2021.
28	DCS Corporation 2 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$204,045,931	0.7%	Rank history: #28 in FY2021, #27 in FY2023, #54 in FY2024 and #58 in FY2025; unchanged since FY2021.
29	Arctic Slope Regional Corporation 10 awardees, including Arctic Slope Technical Services, Inc., Netcentric Technology, LLC and Asrc Federal System Solutions LLC Top agencies DOT (Department of Transportation) NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force)	$200,430,842	0.7%	Rank history: #29 in FY2021, #38 in FY2023, #44 in FY2024 and #27 in FY2025; unchanged since FY2021.
30	Range Generation Next LLC Top agencies USAF (Department of the Air Force)	$186,201,877	0.6%	Rank history: #23 in FY2021, #25 in FY2023, #33 in FY2024 and not on the FY2025 list; down 7 since FY2021.
31	ABT Global LLC 2 awardees Top agencies USAID (US Agency for International Development) HHS (Department of Health and Human Services)	$154,081,015	0.5%	Rank history: #25 in FY2021, #42 in FY2023, #38 in FY2024 and #36 in FY2025; down 6 since FY2021.
32	Amentum Services, Inc. 2 awardees, including Dyncorp International LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) NASA (National Aeronautics and Space Administration)	$151,066,722	0.5%	Rank history: #26 in FY2021, #37 in FY2023, #13 in FY2024 and not on the FY2025 list; down 6 since FY2021.
33	Noblis, Inc. 2 awardees, including Noblis MSD LLC Top agencies DOT (Department of Transportation) Navy (Department of the Navy) Army (Department of the Army)	$142,900,696	0.5%	Rank history: #42 in FY2021, #33 in FY2023, #52 in FY2024 and #56 in FY2025; up 9 since FY2021.
34	Oasis Systems, LLC Top agencies USAF (Department of the Air Force) CFTC (Commodity Futures Trading Commission)	$135,902,696	0.4%	Rank history: not on the FY2021 list, #36 in FY2023, #39 in FY2024 and #31 in FY2025; up 71 since FY2021.
35	LS Technologies LLC Top agencies DOT (Department of Transportation)	$130,777,324	0.4%	Rank history: #38 in FY2021, #48 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2021.
36	Leonardo S.p.A. 7 awardees, including DRS Network & Imaging Systems LLC, DRS Sustainment Systems, Inc. and Laurel Technologies Partnership Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$128,920,063	0.4%	Rank history: #37 in FY2021, #20 in FY2023, #29 in FY2024 and #19 in FY2025; up 1 since FY2021.
37	Science Systems and Applications, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$115,383,951	0.4%	Rank history: #40 in FY2021, #49 in FY2023, #72 in FY2024 and not on the FY2025 list; up 3 since FY2021.
38	Deloitte LLP 2 awardees, including Deloitte Consulting LLP and Sentek Consulting, Inc. Top agencies Treasury (Department of the Treasury) USAID (US Agency for International Development) Navy (Department of the Navy)	$113,594,374	0.4%	Rank history: #34 in FY2021, #52 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2021.
39	Applied Research Associates, Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security) DTRA (Defense Threat Reduction Agency)	$111,747,611	0.4%	Rank history: #60 in FY2021, #34 in FY2023, #50 in FY2024 and #46 in FY2025; up 21 since FY2021.
40	Georgia TECH Research Corp 2 awardees, including Georgia TECH Applied Research Corp Top agencies USAF (Department of the Air Force) HHS (Department of Health and Human Services)	$111,595,709	0.4%	Rank history: #47 in FY2021, #53 in FY2023 and not on the FY2024–FY2025 lists; up 7 since FY2021.
41	Credence Management Solutions Limited Liability Company Top agencies USAID (US Agency for International Development) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$110,143,915	0.4%	Rank history: #71 in FY2021, #29 in FY2023, #31 in FY2024 and #40 in FY2025; up 30 since FY2021.
42	Linquest Corporation Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$106,214,404	0.3%	Rank history: #35 in FY2021, #44 in FY2023, #49 in FY2024 and #45 in FY2025; down 7 since FY2021.
43	Systems Planning and Analysis, Inc. Top agencies Navy (Department of the Navy) DTRA (Defense Threat Reduction Agency)	$105,172,782	0.3%	Rank history: #64 in FY2021, #46 in FY2023, #41 in FY2024 and #35 in FY2025; up 21 since FY2021.
44	Sev1Tech, LLC 2 awardees, including Diamond Data Systems, L.L.C. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$103,033,114	0.3%	Rank history: #39 in FY2021, #45 in FY2023, #53 in FY2024 and #33 in FY2025; down 5 since FY2021.
45	Colsa Corp Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$100,205,367	0.3%	Rank history: #22 in FY2021, #61 in FY2023, #63 in FY2024 and #67 in FY2025; down 23 since FY2021.
46	Xator LLC 3 awardees, including Incadence Strategic Solutions LLC and TSM LLC Top agencies DOS (Department of State) Navy (Department of the Navy) Army (Department of the Army)	$94,499,887	0.3%	Rank history: #45 in FY2021, #56 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2021.
47	Caci, Inc. - Federal Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$88,049,719	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
48	SRC Inc. 2 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force) EPA (Environmental Protection Agency)	$87,080,336	0.3%	Rank history: #55 in FY2021, #31 in FY2023, #25 in FY2024 and #32 in FY2025; up 7 since FY2021.
49	Gryphon Technologies, Inc. 5 awardees, including Gryphon Technologies, L.C., Gryphon Marine, LLC and Schafer Government Services, LLC Top agencies Navy (Department of the Navy)	$78,519,202	0.3%	Rank history: #44 in FY2021, #40 in FY2023 and not on the FY2024–FY2025 lists; down 5 since FY2021.
50	Delphinus Engineering LLC Top agencies Navy (Department of the Navy)	$74,065,342	0.2%	Rank history: #53 in FY2021, #87 in FY2023, #84 in FY2024 and #59 in FY2025; up 3 since FY2021.
51	Envistacom, L.l.c Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$73,141,812	0.2%	Rank history: #61 in FY2021, not on the FY2023 list, #68 in FY2024 and not on the FY2025 list; up 10 since FY2021.
52	Barrios Technology, LLC Top agencies NASA (National Aeronautics and Space Administration)	$71,705,089	0.2%	Rank history: #69 in FY2021, #74 in FY2023, #74 in FY2024 and not on the FY2025 list; up 17 since FY2021.
53	University of Dayton Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$70,187,097	0.2%	Rank history: #49 in FY2021, #51 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2021.
54	CQ JV, LLC Top agencies USAF (Department of the Air Force)	$67,721,291	0.2%	Rank history: not on the FY2021 list, #62 in FY2023, #64 in FY2024 and #43 in FY2025; new.
55	IAP Global Services LLC Through IAP Worldwide Services, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$67,230,354	0.2%	Rank history: #50 in FY2021, #84 in FY2023 and not on the FY2024–FY2025 lists; down 5 since FY2021.
56	Axient LLC Top agencies USAF (Department of the Air Force)	$66,800,771	0.2%	Rank history: #31 in FY2021, #60 in FY2023, #65 in FY2024 and #74 in FY2025; down 25 since FY2021.
57	UIC Government Services LLC 6 awardees, including Bowhead Mission Solutions, LLC, Bowhead Professional and Technical Solutions LLC and Bowhead Business and Technology Solutions, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) DOD (Department of Defense)	$65,496,899	0.2%	Rank history: not on the FY2021 list, #70 in FY2023 and not on the FY2024–FY2025 lists; new.
58	Intuitive Research and Technology Corporation 2 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force) MDA (DOD Missile Defense Agency)	$63,760,541	0.2%	Rank history: #33 in FY2021, #54 in FY2023, #47 in FY2024 and #30 in FY2025; down 25 since FY2021.
59	Southwest Range Services LLC Top agencies Army (Department of the Army)	$63,293,152	0.2%	Rank history: #66 in FY2021, #75 in FY2023, #76 in FY2024 and #86 in FY2025; up 7 since FY2021.
60	Avion Solutions Inc. Top agencies Army (Department of the Army) USSOCOM (United States Special Operations Command)	$61,234,728	0.2%	Rank history: #78 in FY2021 and not on the FY2023–FY2025 lists; up 18 since FY2021.
61	HUI Huliau Technology Services LLC Top agencies DHA (Defense Health Agency)	$61,143,247	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
62	Fibertek, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$61,102,172	0.2%	Rank history: #65 in FY2021 and not on the FY2023–FY2025 lists; up 3 since FY2021.
63	Tech-Marine Business, Inc. Top agencies Navy (Department of the Navy)	$60,933,879	0.2%	Rank history: #73 in FY2021, #98 in FY2023 and not on the FY2024–FY2025 lists; up 10 since FY2021.
64	Nova Global Supply and Services LLC 2 awardees, including Valiant Global Defense Services Inc. and Valiant Technical Services Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$60,509,285	0.2%	Rank history: #76 in FY2021, #81 in FY2023 and not on the FY2024–FY2025 lists; up 12 since FY2021.
65	The Johns Hopkins University 2 awardees, including The Johns Hopkins University Applied Physics Laboratory LLC Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) Army (Department of the Army)	$59,394,382	0.2%	Rank history: not on the FY2021 list, #69 in FY2023 and not on the FY2024–FY2025 lists; up 43 since FY2021.
66	QED Systems, Inc. Top agencies Navy (Department of the Navy)	$59,319,139	0.2%	Rank history: #51 in FY2021, #50 in FY2023, not on the FY2024 list and #52 in FY2025; down 15 since FY2021.
67	Karsun Solutions LLC Top agencies DOT (Department of Transportation)	$58,851,107	0.2%	Rank history: #63 in FY2021, #67 in FY2023, #80 in FY2024 and #65 in FY2025; down 4 since FY2021.
68	Modern Technology Solutions, Inc. Top agencies USAF (Department of the Air Force) MDA (DOD Missile Defense Agency) DHS (Department of Homeland Security)	$57,509,702	0.2%	Rank history: #62 in FY2021, #93 in FY2023, not on the FY2024 list and #96 in FY2025; down 6 since FY2021.
69	MP Solutions, LLC Top agencies MDA (DOD Missile Defense Agency)	$57,345,529	0.2%	Rank history: not on the FY2021 list, #82 in FY2023, #66 in FY2024 and #85 in FY2025; up 391 since FY2021.
70	Consortium Management Group, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$56,386,576	0.2%	Rank history: not on the FY2021 list, #63 in FY2023, #58 in FY2024 and #57 in FY2025; up 60 since FY2021.
71	Qinetiq Group PLC 2 awardees, including Qinetiq Inc. Top agencies Army (Department of the Army)	$55,909,748	0.2%	Rank history: #75 in FY2021 and not on the FY2023–FY2025 lists; up 4 since FY2021.
72	Frontier Technology Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$55,717,360	0.2%	Rank history: #80 in FY2021, #80 in FY2023 and not on the FY2024–FY2025 lists; up 8 since FY2021.
73	Ironmountain Solutions, LLC Top agencies Army (Department of the Army)	$55,578,722	0.2%	Rank history: #52 in FY2021 and not on the FY2023–FY2025 lists; down 21 since FY2021.
74	Management Sciences for Health, Inc. Top agencies USAID (US Agency for International Development)	$54,675,398	0.2%	Rank history: #90 in FY2021 and not on the FY2023–FY2025 lists; up 16 since FY2021.
75	Deloitte Consulting LLP Top agencies Treasury (Department of the Treasury) Army (Department of the Army) USAID (US Agency for International Development)	$54,067,796	0.2%	Rank history: not on the FY2021 list, #39 in FY2023, #51 in FY2024 and not on the FY2025 list; new.
76	Falconwood Top agencies Navy (Department of the Navy)	$53,686,364	0.2%	Rank history: #84 in FY2021, #76 in FY2023, #91 in FY2024 and #83 in FY2025; up 8 since FY2021.
77	Southeastern Computer Consultants Inc. 2 awardees Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$53,505,163	0.2%	Rank history: #83 in FY2021 and not on the FY2023–FY2025 lists; up 6 since FY2021.
78	American Systems Corporation 3 awardees, including DDL Omni Engineering LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$53,243,873	0.2%	Rank history: #57 in FY2021, #59 in FY2023, #70 in FY2024 and #90 in FY2025; down 21 since FY2021.
79	Valkyrie Enterprises, LLC 2 awardees Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DOS (Department of State)	$53,078,189	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 41 since FY2021.
80	Clinicomp International Inc. Top agencies DHA (Defense Health Agency)	$53,066,424	0.2%	Rank history: #77 in FY2021 and not on the FY2023–FY2025 lists; down 3 since FY2021.
81	Mayvin, Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army)	$51,927,863	0.2%	Rank history: not on the FY2021 list, #83 in FY2023, #89 in FY2024 and #66 in FY2025; up 61 since FY2021.
82	Alcyon Technical Services (Ats) JV, LLC Top agencies NASA (National Aeronautics and Space Administration)	$51,597,793	0.2%	Rank history: #74 in FY2021, #88 in FY2023 and not on the FY2024–FY2025 lists; down 8 since FY2021.
83	Simventions Inc. Top agencies Navy (Department of the Navy)	$50,890,247	0.2%	Rank history: #99 in FY2021, #85 in FY2023, #85 in FY2024 and #77 in FY2025; up 16 since FY2021.
84	Alion Science and Technology Corporation Through HII Mission Technologies Corp Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$50,465,500	0.2%	Rank history: #43 in FY2021, #32 in FY2023 and not on the FY2024–FY2025 lists; down 41 since FY2021.
85	R & P Technologies Holdings LLC Through Reliability & Performance Technologies, LLC Top agencies Navy (Department of the Navy)	$49,092,792	0.2%	Rank history: not on the FY2021 list, #86 in FY2023 and not on the FY2024–FY2025 lists; up 40 since FY2021.
86	Honeywell International Inc. 8 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force) GSA (General Services Administration)	$48,748,470	0.2%	Rank history: not on the FY2021 list, #66 in FY2023, #81 in FY2024 and #97 in FY2025; up 20 since FY2021.
87	Aerie Aerospace LLC Top agencies NASA (National Aeronautics and Space Administration)	$48,725,860	0.2%	Rank history: #92 in FY2021 and not on the FY2023–FY2025 lists; up 5 since FY2021.
88	Sumaria Systems, LLC Top agencies USAF (Department of the Air Force)	$46,878,052	0.2%	Rank history: not on the FY2021 list, #94 in FY2023, not on the FY2024 list and #81 in FY2025; up 26 since FY2021.
89	Accenture Federal Services LLC Top agencies Treasury (Department of the Treasury) DHS (Department of Homeland Security) Commerce (Department of Commerce)	$46,788,067	0.2%	Rank history: #58 in FY2021 and not on the FY2023–FY2025 lists; down 31 since FY2021.
90	Janus Research Group, LLC Top agencies Army (Department of the Army)	$46,452,323	0.2%	Rank history: #89 in FY2021, not on the FY2023–FY2024 lists and #76 in FY2025; down 1 since FY2021.
91	On Assignment, Inc. 5 awardees, including ECS Federal, LLC, Enterprise Resource Performance, LLC and Inforeliance LLC Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$46,252,512	0.2%	Rank history: #68 in FY2021 and not on the FY2023–FY2025 lists; down 23 since FY2021.
92	P E Systems, Inc. Top agencies USAF (Department of the Air Force)	$45,521,912	0.1%	Rank history: #59 in FY2021, #71 in FY2023, #78 in FY2024 and #42 in FY2025; down 33 since FY2021.
93	Textron Inc. 4 awardees, including Textron Aviation Defense LLC, Textron Systems Corporation and Bell Textron Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) USSOCOM (United States Special Operations Command)	$44,163,044	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 43 since FY2021.
94	Teledyne Technologies Incorporated 3 awardees, including Teledyne Brown Engineering, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$43,943,520	0.1%	Rank history: #81 in FY2021, #68 in FY2023, #82 in FY2024 and #80 in FY2025; down 13 since FY2021.
95	Tetra Tech, Inc. 10 awardees, including Management Systems International, Inc., Ard, Inc. and The Kaizen Company, LLC Top agencies USAID (US Agency for International Development) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$43,801,357	0.1%	Rank history: #85 in FY2021, #72 in FY2023, #46 in FY2024 and #54 in FY2025; down 10 since FY2021.
96	Information International Associates Inc. Through Keylogic, LLC Top agencies DOE (Department of Energy)	$42,911,285	0.1%	Rank history: #91 in FY2021, #89 in FY2023 and not on the FY2024–FY2025 lists; down 5 since FY2021.
97	International Business Machines Corporation 2 awardees Top agencies DMEA (Defense Microelectronics Activity) DOT (Department of Transportation) DECA (Defense Commissary Agency)	$42,802,408	0.1%	Rank history: not on the FY2021 list, #96 in FY2023, #69 in FY2024 and not on the FY2025 list; up 50 since FY2021.
98	Sierra Nevada Company, LLC 3 awardees Top agencies USAF (Department of the Air Force) DCSA (Defense Counterintelligence and Security Agency) USSOCOM (United States Special Operations Command)	$42,378,230	0.1%	Rank history: #70 in FY2021, #64 in FY2023 and not on the FY2024–FY2025 lists; down 28 since FY2021.
99	Indus Technology Inc. Top agencies Navy (Department of the Navy)	$42,286,183	0.1%	Rank history: #96 in FY2021, #90 in FY2023, #88 in FY2024 and #93 in FY2025; down 3 since FY2021.
100	Accenture Inc. Through Accenture Federal Services LLC Top agencies Treasury (Department of the Treasury) Army (Department of the Army) Navy (Department of the Navy)	$41,854,395	0.1%	Rank history: not on the FY2021 list, #47 in FY2023 and not on the FY2024–FY2025 lists; new.

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 $30.6 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 2022 ran Oct 1, 2021 – Sep 30, 2022. 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 FY2021. "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 FY2021 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.

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