Top 100 Contractors in PSC R425: Engineering and Technical Services, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Chemonics International, Inc. Top agencies USAID (US Agency for International Development)	$1,393,674,411	4.6%	Rank history: #1 in FY2022, #5 in FY2023, #3 in FY2024 and #6 in FY2025; unchanged since FY2020.
2	RTX Corporation 52 awardees, including Raytheon Company, Rockwell Collins, Inc. and Raytheon / Lockheed Martin Javelin JV Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$1,299,129,096	4.3%	Rank history: #3 in FY2022, #9 in FY2023, #8 in FY2024 and #8 in FY2025; up 12 since FY2020.
3	Lockheed Martin Corporation 29 awardees, including Sikorsky Aircraft Corporation Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$1,071,601,568	3.5%	Rank history: #2 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; up 6 since FY2020.
4	Northrop Grumman Corporation 39 awardees, including Northrop Grumman Systems Corp Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$1,049,878,748	3.5%	Rank history: #6 in FY2022, #4 in FY2023, #4 in FY2024 and #2 in FY2025; up 1 since FY2020.
5	The Aerospace Corporation Top agencies USAF (Department of the Air Force) Commerce (Department of Commerce) DOI (Department of the Interior)	$1,048,885,058	3.5%	Rank history: #4 in FY2022, #3 in FY2023, #2 in FY2024 and #3 in FY2025; down 3 since FY2020.
6	Leidos Holdings, Inc. 19 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)	$919,242,649	3.0%	Rank history: #9 in FY2022, #14 in FY2023, #9 in FY2024 and #9 in FY2025; up 4 since FY2020.
7	Booz Allen Hamilton Holding Corporation 2 awardees, including Booz Allen Hamilton Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$911,345,175	3.0%	Rank history: #5 in FY2022, #2 in FY2023, #5 in FY2024 and #7 in FY2025; unchanged since FY2020.
8	The Boeing Company 21 awardees Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$836,896,939	2.8%	Rank history: #11 in FY2022, #8 in FY2023, #7 in FY2024 and #13 in FY2025; down 4 since FY2020.
9	Science Applications International Corporation 8 awardees, including Engility Services, LLC Top agencies Navy (Department of the Navy) NASA (National Aeronautics and Space Administration) DOT (Department of Transportation)	$830,504,215	2.7%	Rank history: #7 in FY2022, #6 in FY2023, #12 in FY2024 and #12 in FY2025; down 6 since FY2020.
10	General Dynamics Corporation 31 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)	$679,681,312	2.2%	Rank history: #8 in FY2022, #7 in FY2023, #11 in FY2024 and #11 in FY2025; up 1 since FY2020.
11	The Mitre Corporation 2 awardees Top agencies USAF (Department of the Air Force) DOT (Department of Transportation) HHS (Department of Health and Human Services)	$662,448,324	2.2%	Rank history: #10 in FY2022, #11 in FY2023, #10 in FY2024 and #10 in FY2025; down 5 since FY2020.
12	L3Harris Technologies, Inc. 29 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) USSOCOM (United States Special Operations Command)	$553,362,622	1.8%	Rank history: #12 in FY2022, #13 in FY2023, #15 in FY2024 and #16 in FY2025; up 1 since FY2020.
13	CACI International Inc. 10 awardees, including Caci, Inc. - Federal, Caci Technologies, LLC and Caci Nss, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$520,060,634	1.7%	Rank history: #14 in FY2022, #12 in FY2023, #6 in FY2024 and #4 in FY2025; up 2 since FY2020.
14	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)	$407,735,832	1.3%	Rank history: #15 in FY2022, #18 in FY2023, #20 in FY2024 and not on the FY2025 list; up 6 since FY2020.
15	Torch Technologies Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) MDA (DOD Missile Defense Agency)	$347,456,779	1.1%	Rank history: #24 in FY2022, #21 in FY2023, #24 in FY2024 and #22 in FY2025; up 1 since FY2020.
16	AECOM 11 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)	$344,556,001	1.1%	Rank history: #18 in FY2022, #15 in FY2023, #23 in FY2024 and not on the FY2025 list; down 4 since FY2020.
17	BAE Systems PLC 12 awardees, including BAE Systems Land & Armaments L.P., BAE Systems Information and Electronic Systems Integration Inc. 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)	$340,160,321	1.1%	Rank history: #13 in FY2022, #10 in FY2023, #14 in FY2024 and #15 in FY2025; unchanged since FY2020.
18	Mantech International Corporation 3 awardees, including Mantech Advanced Systems International, Inc., Mantech SRS Technologies, Inc. and Tapestry Technologies, Inc. Top agencies Army (Department of the Army) DOS (Department of State) Navy (Department of the Navy)	$329,868,059	1.1%	Rank history: #16 in FY2022, #30 in FY2023, #36 in FY2024 and #29 in FY2025; unchanged since FY2020.
19	Jacobs Engineering Group Inc. 11 awardees, including Amentum Technology, Inc., The Keyw Corporation and Ch2M Hill, Inc. Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army) USAF (Department of the Air Force)	$322,144,342	1.1%	Rank history: #17 in FY2022, #16 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2020.
20	Parsons Corporation 9 awardees, including Parsons Government Services Inc., Space Ground System Solutions, Inc. and Polaris Alpha, LLC Top agencies MDA (DOD Missile Defense Agency) Army (Department of the Army) DOE (Department of Energy)	$303,615,554	1.0%	Rank history: #19 in FY2022, #17 in FY2023, #16 in FY2024 and #14 in FY2025; up 2 since FY2020.
21	Microsoft Corporation Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$260,466,131	0.9%	Rank history: #23 in FY2022, #24 in FY2023, #19 in FY2024 and #23 in FY2025; down 2 since FY2020.
22	Colsa Corp Top agencies USAF (Department of the Air Force) Army (Department of the Army) NASA (National Aeronautics and Space Administration)	$252,174,055	0.8%	Rank history: #45 in FY2022, #61 in FY2023, #63 in FY2024 and #67 in FY2025; down 1 since FY2020.
23	Range Generation Next LLC Top agencies USAF (Department of the Air Force)	$222,303,088	0.7%	Rank history: #30 in FY2022, #25 in FY2023, #33 in FY2024 and not on the FY2025 list; up 9 since FY2020.
24	Kbr, Inc. 11 awardees, including KBR Wyle Services, LLC, Kord Technologies, LLC and Dependable Global Solutions, LLC Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army) OSD (Office of the Secretary of Defense)	$216,034,563	0.7%	Rank history: #26 in FY2022, #26 in FY2023, #83 in FY2024 and not on the FY2025 list; up 7 since FY2020.
25	ABT Global LLC 2 awardees Top agencies USAID (US Agency for International Development) HHS (Department of Health and Human Services)	$198,727,675	0.7%	Rank history: #31 in FY2022, #42 in FY2023, #38 in FY2024 and #36 in FY2025; up 2 since FY2020.
26	Amentum Services, Inc. 3 awardees, including Dyncorp International LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) NASA (National Aeronautics and Space Administration)	$191,616,084	0.6%	Rank history: #32 in FY2022, #37 in FY2023, #13 in FY2024 and not on the FY2025 list; up 71 since FY2020.
27	Aaski Technology Inc. 2 awardees, including Mag DS Corp Top agencies Army (Department of the Army) DHS (Department of Homeland Security)	$183,776,433	0.6%	Rank history: #20 in FY2022, #28 in FY2023 and not on the FY2024–FY2025 lists; down 3 since FY2020.
28	DCS Corporation Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$183,747,650	0.6%	Rank history: #28 in FY2022, #27 in FY2023, #54 in FY2024 and #58 in FY2025; down 2 since FY2020.
29	Arctic Slope Regional Corporation 11 awardees, including Arctic Slope Technical Services, Inc., Asrc Federal System Solutions LLC and Netcentric Technology, LLC Top agencies NASA (National Aeronautics and Space Administration) DOT (Department of Transportation) USAF (Department of the Air Force)	$179,566,912	0.6%	Rank history: #29 in FY2022, #38 in FY2023, #44 in FY2024 and #27 in FY2025; up 17 since FY2020.
30	Smartronix LLC 2 awardees, including Datastrong, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) DOJ (Department of Justice)	$174,897,293	0.6%	Rank history: #22 in FY2022, #23 in FY2023 and not on the FY2024–FY2025 lists; down 7 since FY2020.
31	Axient LLC 3 awardees, including Systems Engineering Group, Inc. Top agencies USAF (Department of the Air Force) MDA (DOD Missile Defense Agency) Navy (Department of the Navy)	$165,610,372	0.5%	Rank history: #56 in FY2022, #60 in FY2023, #65 in FY2024 and #74 in FY2025; up 27 since FY2020.
32	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) Army (Department of the Army)	$157,409,856	0.5%	Rank history: #21 in FY2022, #65 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2020.
33	Intuitive Research and Technology Corporation 2 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$154,801,623	0.5%	Rank history: #58 in FY2022, #54 in FY2023, #47 in FY2024 and #30 in FY2025; down 3 since FY2020.
34	Deloitte LLP 2 awardees, including Deloitte Consulting LLP Top agencies Treasury (Department of the Treasury) Navy (Department of the Navy) Army (Department of the Army)	$145,503,333	0.5%	Rank history: #38 in FY2022, #52 in FY2023 and not on the FY2024–FY2025 lists; up 74 since FY2020.
35	Linquest Corporation Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$144,646,052	0.5%	Rank history: #42 in FY2022, #44 in FY2023, #49 in FY2024 and #45 in FY2025; down 6 since FY2020.
36	Huntington Ingalls Industries, Inc. 5 awardees, including HII Mission Technologies Corp and HII Fleet Support Group LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Commerce (Department of Commerce)	$135,361,103	0.4%	Rank history: #25 in FY2022, #19 in FY2023, #17 in FY2024 and #20 in FY2025; up 4 since FY2020.
37	Leonardo S.p.A. 9 awardees, including DRS Network & Imaging Systems LLC, DRS Sustainment Systems, Inc. and DRS Advanced ISR LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$130,968,489	0.4%	Rank history: #36 in FY2022, #20 in FY2023, #29 in FY2024 and #19 in FY2025; down 3 since FY2020.
38	LS Technologies LLC Top agencies DOT (Department of Transportation)	$127,316,231	0.4%	Rank history: #35 in FY2022, #48 in FY2023 and not on the FY2024–FY2025 lists; up 4 since FY2020.
39	Sev1Tech, LLC Top agencies Army (Department of the Army) DHS (Department of Homeland Security)	$120,462,255	0.4%	Rank history: #44 in FY2022, #45 in FY2023, #53 in FY2024 and #33 in FY2025; up 2 since FY2020.
40	Science Systems and Applications, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$120,252,732	0.4%	Rank history: #37 in FY2022, #49 in FY2023, #72 in FY2024 and not on the FY2025 list; down 3 since FY2020.
41	BAE Systems Land & Armaments L.P. 10 awardees, including BAE Systems Information and Electronic Systems Integration Inc. 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)	$116,317,985	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
42	Noblis, Inc. 2 awardees, including Noblis MSD LLC Top agencies DOT (Department of Transportation) DOJ (Department of Justice) Navy (Department of the Navy)	$109,147,726	0.4%	Rank history: #33 in FY2022, #33 in FY2023, #52 in FY2024 and #56 in FY2025; up 2 since FY2020.
43	Alion Science and Technology Corporation 2 awardees, including HII Mission Technologies Corp Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DISA (Defense Information Systems Agency)	$107,755,633	0.4%	Rank history: #84 in FY2022, #32 in FY2023 and not on the FY2024–FY2025 lists; up 115 since FY2020.
44	Gryphon Technologies, Inc. 7 awardees, including Gryphon Technologies, L.C., Gryphon Marine, LLC and Omnitec Solutions, LLC Top agencies Navy (Department of the Navy)	$107,374,749	0.4%	Rank history: #49 in FY2022, #40 in FY2023 and not on the FY2024–FY2025 lists; down 5 since FY2020.
45	Xator LLC 3 awardees, including Incadence Strategic Solutions LLC and TSM LLC Top agencies DOS (Department of State) Army (Department of the Army) Navy (Department of the Navy)	$104,382,588	0.3%	Rank history: #46 in FY2022, #56 in FY2023 and not on the FY2024–FY2025 lists; up 8 since FY2020.
46	HP Enterprise Services LLC 10 awardees, including Peraton Inc., Dhpc Technologies, Inc. and Peraton Government Communications Inc. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) USAF (Department of the Air Force)	$101,249,293	0.3%	Rank history: #27 in FY2022, #22 in FY2023, #100 in FY2024 and not on the FY2025 list; down 1 since FY2020.
47	Georgia TECH Research Corp 2 awardees, including Georgia TECH Applied Research Corp Top agencies USAF (Department of the Air Force) DISA (Defense Information Systems Agency) HHS (Department of Health and Human Services)	$93,728,444	0.3%	Rank history: #40 in FY2022, #53 in FY2023 and not on the FY2024–FY2025 lists; up 193 since FY2020.
48	Perspecta Inc. 7 awardees, including Dhpc Technologies, Inc., Peraton Technology Services Inc. and Peraton Aerospace & Defense Inc. Top agencies Army (Department of the Army) Commerce (Department of Commerce) Navy (Department of the Navy)	$90,901,311	0.3%	Rank history: not on the FY2022–FY2025 lists; up 56 since FY2020.
49	University of Dayton Top agencies USAF (Department of the Air Force)	$87,198,268	0.3%	Rank history: #53 in FY2022, #51 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2020.
50	IAP Global Services LLC Through IAP Worldwide Services, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$86,662,121	0.3%	Rank history: #55 in FY2022, #84 in FY2023 and not on the FY2024–FY2025 lists; down 7 since FY2020.
51	QED Systems, Inc. Top agencies Navy (Department of the Navy)	$85,404,971	0.3%	Rank history: #66 in FY2022, #50 in FY2023, not on the FY2024 list and #52 in FY2025; up 6 since FY2020.
52	Ironmountain Solutions, LLC Top agencies Army (Department of the Army)	$80,905,631	0.3%	Rank history: #73 in FY2022 and not on the FY2023–FY2025 lists; up 41 since FY2020.
53	Delphinus Engineering LLC Top agencies Navy (Department of the Navy)	$79,646,501	0.3%	Rank history: #50 in FY2022, #87 in FY2023, #84 in FY2024 and #59 in FY2025; up 10 since FY2020.
54	Vectrus Systems Corporation 2 awardees, including V2X Systems LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$79,197,651	0.3%	Rank history: not on the FY2022–FY2025 lists; down 2 since FY2020.
55	SRC Inc. 2 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$78,129,641	0.3%	Rank history: #48 in FY2022, #31 in FY2023, #25 in FY2024 and #32 in FY2025; down 7 since FY2020.
56	Adams Communication & Engineering Technology, Inc. Top agencies USSOCOM (United States Special Operations Command) Navy (Department of the Navy) USAF (Department of the Air Force)	$76,284,413	0.3%	Rank history: not on the FY2022–FY2025 lists; up 5 since FY2020.
57	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)	$74,886,937	0.2%	Rank history: #78 in FY2022, #59 in FY2023, #70 in FY2024 and #90 in FY2025; down 7 since FY2020.
58	Accenture Federal Services LLC 3 awardees, including Accenture LLP Top agencies Treasury (Department of the Treasury) Navy (Department of the Navy) DHS (Department of Homeland Security)	$74,557,653	0.2%	Rank history: #89 in FY2022 and not on the FY2023–FY2025 lists; up 30 since FY2020.
59	P E Systems, Inc. Top agencies USAF (Department of the Air Force)	$73,038,129	0.2%	Rank history: #92 in FY2022, #71 in FY2023, #78 in FY2024 and #42 in FY2025; up 1 since FY2020.
60	Applied Research Associates, Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security) DTRA (Defense Threat Reduction Agency)	$72,212,836	0.2%	Rank history: #39 in FY2022, #34 in FY2023, #50 in FY2024 and #46 in FY2025; up 6 since FY2020.
61	Envistacom, L.l.c Top agencies Army (Department of the Army) Navy (Department of the Navy)	$72,086,670	0.2%	Rank history: #51 in FY2022, not on the FY2023 list, #68 in FY2024 and not on the FY2025 list; up 44 since FY2020.
62	Modern Technology Solutions, Inc. Top agencies USAF (Department of the Air Force) MDA (DOD Missile Defense Agency) DHS (Department of Homeland Security)	$71,794,343	0.2%	Rank history: #68 in FY2022, #93 in FY2023, not on the FY2024 list and #96 in FY2025; up 19 since FY2020.
63	Karsun Solutions LLC Top agencies DOT (Department of Transportation)	$71,577,702	0.2%	Rank history: #67 in FY2022, #67 in FY2023, #80 in FY2024 and #65 in FY2025; up 8 since FY2020.
64	Systems Planning and Analysis, Inc. Top agencies Navy (Department of the Navy) DTRA (Defense Threat Reduction Agency)	$71,042,094	0.2%	Rank history: #43 in FY2022, #46 in FY2023, #41 in FY2024 and #35 in FY2025; up 22 since FY2020.
65	Fibertek, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$70,931,191	0.2%	Rank history: #62 in FY2022 and not on the FY2023–FY2025 lists; up 61 since FY2020.
66	Southwest Range Services LLC Top agencies Army (Department of the Army)	$69,389,723	0.2%	Rank history: #59 in FY2022, #75 in FY2023, #76 in FY2024 and #86 in FY2025; down 11 since FY2020.
67	Seneca Global Services LLC Top agencies DHA (Defense Health Agency) Army (Department of the Army)	$63,681,600	0.2%	Rank history: not on the FY2022–FY2025 lists; up 184 since FY2020.
68	On Assignment, Inc. 4 awardees, including ECS Federal, LLC, Inforeliance LLC and Indrasoft Inc. Top agencies DOJ (Department of Justice) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$63,621,944	0.2%	Rank history: #91 in FY2022 and not on the FY2023–FY2025 lists; up 187 since FY2020.
69	Barrios Technology, LLC Top agencies NASA (National Aeronautics and Space Administration)	$62,042,553	0.2%	Rank history: #52 in FY2022, #74 in FY2023, #74 in FY2024 and not on the FY2025 list; down 4 since FY2020.
70	Sierra Nevada Company, LLC 2 awardees Top agencies USAF (Department of the Air Force) USSOCOM (United States Special Operations Command) WHS (DOD Washington Headquarters Service)	$61,749,210	0.2%	Rank history: #98 in FY2022, #64 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2020.
71	Credence Management Solutions Limited Liability Company Top agencies USAF (Department of the Air Force) USAID (US Agency for International Development) DHS (Department of Homeland Security)	$60,018,144	0.2%	Rank history: #41 in FY2022, #29 in FY2023, #31 in FY2024 and #40 in FY2025; down 4 since FY2020.
72	Bowhead Mission Solutions, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$59,217,199	0.2%	Rank history: not on the FY2022–FY2025 lists; up 2 since FY2020.
73	Tech-Marine Business, Inc. Top agencies Navy (Department of the Navy)	$59,214,008	0.2%	Rank history: #63 in FY2022, #98 in FY2023 and not on the FY2024–FY2025 lists; up 7 since FY2020.
74	Alcyon Technical Services (Ats) JV, LLC Top agencies NASA (National Aeronautics and Space Administration)	$58,576,523	0.2%	Rank history: #82 in FY2022, #88 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2020.
75	Qinetiq Group PLC Through Qinetiq Inc. Top agencies Army (Department of the Army)	$58,345,036	0.2%	Rank history: #71 in FY2022 and not on the FY2023–FY2025 lists; up 95 since FY2020.
76	Nova Global Supply and Services LLC 2 awardees, including Valiant Global Defense Services Inc. Top agencies Army (Department of the Army)	$57,516,850	0.2%	Rank history: #64 in FY2022, #81 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
77	Clinicomp International Inc. Top agencies DHA (Defense Health Agency)	$52,202,543	0.2%	Rank history: #80 in FY2022 and not on the FY2023–FY2025 lists; up 5 since FY2020.
78	Avion Solutions Inc. Top agencies Army (Department of the Army)	$52,171,538	0.2%	Rank history: #60 in FY2022 and not on the FY2023–FY2025 lists; up 25 since FY2020.
79	T-Solutions, Inc. Top agencies Navy (Department of the Navy)	$51,070,346	0.2%	Rank history: not on the FY2022–FY2024 lists and #98 in FY2025; up 4 since FY2020.
80	Frontier Technology Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$50,967,382	0.2%	Rank history: #72 in FY2022, #80 in FY2023 and not on the FY2024–FY2025 lists; up 10 since FY2020.
81	Teledyne Technologies Incorporated 5 awardees, including Teledyne Brown Engineering, Inc., Teledyne Defense Electronics, LLC and Teledyne Flir Defense, Inc. Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army) Navy (Department of the Navy)	$50,666,560	0.2%	Rank history: #94 in FY2022, #68 in FY2023, #82 in FY2024 and #80 in FY2025; up 239 since FY2020.
82	Prism Maritime, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$50,661,925	0.2%	Rank history: not on the FY2022–FY2025 lists; up 46 since FY2020.
83	Southeastern Computer Consultants Inc. 2 awardees Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$49,860,844	0.2%	Rank history: #77 in FY2022 and not on the FY2023–FY2025 lists; up 59 since FY2020.
84	Falconwood Top agencies Navy (Department of the Navy)	$49,729,201	0.2%	Rank history: #76 in FY2022, #76 in FY2023, #91 in FY2024 and #83 in FY2025; down 25 since FY2020.
85	Tetra Tech, Inc. 12 awardees, including Management Systems International, Inc., The Kaizen Company, LLC and Ard, Inc. Top agencies USAID (US Agency for International Development) DOE (Department of Energy) DOS (Department of State)	$49,592,815	0.2%	Rank history: #95 in FY2022, #72 in FY2023, #46 in FY2024 and #54 in FY2025; up 55 since FY2020.
86	Parsons Government Services Inc. Top agencies MDA (DOD Missile Defense Agency)	$49,476,347	0.2%	Rank history: not on the FY2022–FY2023 lists, #71 in FY2024 and not on the FY2025 list; down 24 since FY2020.
87	Odyssey Systems Consulting Group, Ltd. Top agencies USAF (Department of the Air Force)	$47,270,665	0.2%	Rank history: not on the FY2022 list, #92 in FY2023, not on the FY2024 list and #21 in FY2025; down 52 since FY2020.
88	Cherokee Nation 6 awardees, including Cherokee Nation Strategic Programs, L.L.C., Cherokee Services Group LLC and Cherokee Nation Management & Consulting, L.l.c.. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) Commerce (Department of Commerce)	$46,632,064	0.2%	Rank history: not on the FY2022–FY2025 lists; up 10 since FY2020.
89	Janus Research Group, LLC Top agencies Army (Department of the Army)	$46,122,135	0.2%	Rank history: #90 in FY2022, not on the FY2023–FY2024 lists and #76 in FY2025; up 32 since FY2020.
90	Management Sciences for Health, Inc. Top agencies USAID (US Agency for International Development)	$45,938,526	0.2%	Rank history: #74 in FY2022 and not on the FY2023–FY2025 lists; up 1 since FY2020.
91	Information International Associates Inc. Through Keylogic, LLC Top agencies DOE (Department of Energy)	$45,779,939	0.2%	Rank history: #96 in FY2022, #89 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
92	Aerie Aerospace LLC Top agencies NASA (National Aeronautics and Space Administration)	$45,249,102	0.1%	Rank history: #87 in FY2022 and not on the FY2023–FY2025 lists; up 3 since FY2020.
93	Population Services International Top agencies USAID (US Agency for International Development)	$44,793,660	0.1%	Rank history: not on the FY2022–FY2025 lists; up 6 since FY2020.
94	Simulation Technologies, Inc. Top agencies Army (Department of the Army) USSOCOM (United States Special Operations Command)	$44,505,933	0.1%	Rank history: not on the FY2022–FY2025 lists; up 7 since FY2020.
95	Peerless Technologies Corporation Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$43,687,469	0.1%	Rank history: not on the FY2022–FY2025 lists; down 17 since FY2020.
96	Indus Technology Inc. Top agencies Navy (Department of the Navy)	$43,015,315	0.1%	Rank history: #99 in FY2022, #90 in FY2023, #88 in FY2024 and #93 in FY2025; up 13 since FY2020.
97	General Electric Company 12 awardees, including GE Energy Power Conversion USA Inc., GE Energy Power Conversion Naval Systems Inc. and GE Aviation Systems LLC Top agencies Navy (Department of the Navy) NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force)	$42,060,964	0.1%	Rank history: not on the FY2022–FY2025 lists; up 76 since FY2020.
98	Chugach Alaska Corporation 3 awardees, including Wolf Creek Federal Services LLC and Chugach Information Technology LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DHS (Department of Homeland Security)	$42,050,798	0.1%	Rank history: not on the FY2022–FY2025 lists; up 33 since FY2020.
99	Simventions Inc. Top agencies Navy (Department of the Navy)	$41,191,001	0.1%	Rank history: #83 in FY2022, #85 in FY2023, #85 in FY2024 and #77 in FY2025; up 28 since FY2020.
100	DAI Global LLC Top agencies USAID (US Agency for International Development)	$40,934,907	0.1%	Rank history: not on the FY2022 list, #78 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2020.

How this ranking works

• Source: every contract action FPDS records (as published on SAM.gov) in the period, as GovTribe received it.
• Amounts are net obligations: what was obligated, less what was deobligated. Shares are of $30.3 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 2021 ran Oct 1, 2020 – Sep 30, 2021. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
• Rank changes compare with FY2020. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
• Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list. The step from FY2020 takes the color of the rank change beside it.
• Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

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