Top 100 Contractors in PSC R425: Engineering and Technical Services, FY2024

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Lockheed Martin Corporation 36 awardees, including Lockheed Martin Services, LLC, Zeta Associates Inc. and Lockheed Martin Coherent Technologies, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$1,341,174,344	3.7%	Rank history: #3 in FY2021, #2 in FY2022, #1 in FY2023 and #1 in FY2025; unchanged since FY2023.
2	The Aerospace Corporation Top agencies USAF (Department of the Air Force) Commerce (Department of Commerce) DOI (Department of the Interior)	$1,181,063,594	3.3%	Rank history: #5 in FY2021, #4 in FY2022, #3 in FY2023 and #3 in FY2025; up 1 since FY2023.
3	Chemonics International, Inc. Top agencies USAID (US Agency for International Development)	$1,125,954,913	3.1%	Rank history: #1 in FY2021, #1 in FY2022, #5 in FY2023 and #6 in FY2025; up 2 since FY2023.
4	Northrop Grumman Corporation 42 awardees, including Northrop Grumman Systems Corporation Top agencies USAF (Department of the Air Force) Army (Department of the Army) OSD (Office of the Secretary of Defense)	$1,048,240,764	2.9%	Rank history: #4 in FY2021, #6 in FY2022, #4 in FY2023 and #2 in FY2025; unchanged since FY2023.
5	Booz Allen Hamilton Holding Corporation 3 awardees, including Booz Allen Hamilton Inc. and Aquilent, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$1,043,513,697	2.9%	Rank history: #7 in FY2021, #5 in FY2022, #2 in FY2023 and #7 in FY2025; down 3 since FY2023.
6	CACI International Inc. 8 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)	$930,544,338	2.6%	Rank history: #13 in FY2021, #14 in FY2022, #12 in FY2023 and #4 in FY2025; up 6 since FY2023.
7	The Boeing Company 23 awardees, including Boeing Sikorsky Aircraft Support, LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$853,222,583	2.4%	Rank history: #8 in FY2021, #11 in FY2022, #8 in FY2023 and #13 in FY2025; up 1 since FY2023.
8	RTX Corporation 43 awardees, including Raytheon Company and Rockwell Collins, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$776,938,721	2.2%	Rank history: #2 in FY2021, #3 in FY2022, #9 in FY2023 and #8 in FY2025; up 1 since FY2023.
9	Leidos Holdings, Inc. 21 awardees, including Leidos, Inc., Aranea Solutions Inc. and Gibbs & Cox, Inc. Top agencies Army (Department of the Army) DOE (Department of Energy) USAF (Department of the Air Force)	$776,918,128	2.2%	Rank history: #6 in FY2021, #9 in FY2022, #14 in FY2023 and #9 in FY2025; up 5 since FY2023.
10	The Mitre Corporation 3 awardees Top agencies USAF (Department of the Air Force) DOT (Department of Transportation) Commerce (Department of Commerce)	$673,323,078	1.9%	Rank history: #11 in FY2021, #10 in FY2022, #11 in FY2023 and #10 in FY2025; up 1 since FY2023.
11	General Dynamics Corporation 21 awardees, including General Dynamics Information Technology, Inc., General Dynamics Land Systems Inc. and General Dynamics Mission Systems, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$671,966,443	1.9%	Rank history: #10 in FY2021, #8 in FY2022, #7 in FY2023 and #11 in FY2025; down 4 since FY2023.
12	Science Applications International Corporation 6 awardees Top agencies Navy (Department of the Navy) DOT (Department of Transportation) USAF (Department of the Air Force)	$624,203,106	1.7%	Rank history: #9 in FY2021, #7 in FY2022, #6 in FY2023 and #12 in FY2025; down 6 since FY2023.
13	Amentum Services, Inc. 4 awardees, including JT4 LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$607,663,712	1.7%	Rank history: #26 in FY2021, #32 in FY2022, #37 in FY2023 and not on the FY2025 list; up 24 since FY2023.
14	BAE Systems 17 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)	$541,229,151	1.5%	Rank history: #17 in FY2021, #13 in FY2022, #10 in FY2023 and #15 in FY2025; down 4 since FY2023.
15	L3Harris Technologies, Inc. 29 awardees, including L3Harris Technologies Integrated Systems L.P., L3 Technologies, Inc. and L3Harris Forcex, Inc. Top agencies USAF (Department of the Air Force) Commerce (Department of Commerce) USSOCOM (United States Special Operations Command)	$506,805,679	1.4%	Rank history: #12 in FY2021, #12 in FY2022, #13 in FY2023 and #16 in FY2025; down 2 since FY2023.
16	Parsons Corporation 3 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)	$437,513,117	1.2%	Rank history: #20 in FY2021, #19 in FY2022, #17 in FY2023 and #14 in FY2025; up 1 since FY2023.
17	Huntington Ingalls Industries, Inc. 8 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)	$408,492,756	1.1%	Rank history: #36 in FY2021, #25 in FY2022, #19 in FY2023 and #20 in FY2025; up 2 since FY2023.
18	Smartronix, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$378,118,648	1.0%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
19	Microsoft Corporation Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$374,814,511	1.0%	Rank history: #21 in FY2021, #23 in FY2022, #24 in FY2023 and #23 in FY2025; up 5 since FY2023.
20	General Atomic Technologies Corporation 3 awardees, including General Atomics Aeronautical Systems, Inc. and General Atomics Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DHS (Department of Homeland Security)	$303,599,216	0.8%	Rank history: #14 in FY2021, #15 in FY2022, #18 in FY2023 and not on the FY2025 list; down 2 since FY2023.
21	Caci Technologies LLC 4 awardees, including Caci, Inc. - Federal and Caci Nss, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$301,828,004	0.8%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
22	Jacobs Government Services Company 6 awardees, including Amentum Technology, Inc. and Jacobs Engineering Group Inc. Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army) USAF (Department of the Air Force)	$279,920,246	0.8%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
23	AECOM 5 awardees, including JT4 LLC, AECOM Usa, Inc. and AECOM Services, LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) DOJ (Department of Justice)	$278,398,755	0.8%	Rank history: #16 in FY2021, #18 in FY2022, #15 in FY2023 and not on the FY2025 list; down 8 since FY2023.
24	Torch Technologies Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$273,793,560	0.8%	Rank history: #15 in FY2021, #24 in FY2022, #21 in FY2023 and #22 in FY2025; down 3 since FY2023.
25	SRC Inc. 2 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$270,073,418	0.7%	Rank history: #55 in FY2021, #48 in FY2022, #31 in FY2023 and #32 in FY2025; up 6 since FY2023.
26	Serco Inc 3 awardees, including Serco-Ips Corporation and Whitney Bradley & Brown, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$233,005,748	0.6%	Rank history: not on the FY2021–FY2022 lists, #35 in FY2023 and #24 in FY2025; up 9 since FY2023.
27	Odyssey Systems Consulting Group Ltd. Top agencies USAF (Department of the Air Force)	$221,650,199	0.6%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
28	General Dynamics Global Force, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$215,204,198	0.6%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
29	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) DHS (Department of Homeland Security)	$213,960,131	0.6%	Rank history: #37 in FY2021, #36 in FY2022, #20 in FY2023 and #19 in FY2025; down 9 since FY2023.
30	BAE Systems Land & Armaments L.P. Top agencies Army (Department of the Army)	$204,684,927	0.6%	Rank history: not on the FY2021–FY2023 lists and #25 in FY2025; new.
31	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)	$190,529,259	0.5%	Rank history: #71 in FY2021, #41 in FY2022, #29 in FY2023 and #40 in FY2025; down 2 since FY2023.
32	KBR Wyle Services LLC 5 awardees, including KBR Services, LLC and Kord Technologies, LLC Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy) DHA (Defense Health Agency)	$187,301,829	0.5%	Rank history: not on the FY2021–FY2023 lists and #26 in FY2025; new.
33	Range Generation Next LLC Top agencies USAF (Department of the Air Force)	$186,574,863	0.5%	Rank history: #23 in FY2021, #30 in FY2022, #25 in FY2023 and not on the FY2025 list; down 8 since FY2023.
34	Accenture Federal Services LLC 2 awardees Top agencies USAF (Department of the Air Force) Treasury (Department of the Treasury) Navy (Department of the Navy)	$174,847,156	0.5%	Rank history: not on the FY2021–FY2023 lists and #37 in FY2025; new.
35	Deloitte 2 awardees, including Deloitte Consulting LLP and Deloitte & Touche LLP Top agencies Treasury (Department of the Treasury) Navy (Department of the Navy) USAF (Department of the Air Force)	$164,218,303	0.5%	Rank history: not on the FY2021–FY2023 lists and #47 in FY2025; new.
36	ManTech International Corporation 6 awardees, including Mantech Advanced Systems International, Inc., Mantech SRS Technologies, Inc. and Tapestry Technologies, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DOS (Department of State)	$162,199,503	0.4%	Rank history: #18 in FY2021, #16 in FY2022, #30 in FY2023 and #29 in FY2025; down 6 since FY2023.
37	Anduril Industries Inc. Top agencies USSOCOM (United States Special Operations Command) Navy (Department of the Navy) USAF (Department of the Air Force)	$160,329,848	0.4%	Rank history: not on the FY2021–FY2022 lists, #79 in FY2023 and #48 in FY2025; up 42 since FY2023.
38	ABT Global LLC 3 awardees Top agencies USAID (US Agency for International Development) HHS (Department of Health and Human Services) DOE (Department of Energy)	$158,987,474	0.4%	Rank history: #25 in FY2021, #31 in FY2022, #42 in FY2023 and #36 in FY2025; up 4 since FY2023.
39	Oasis Systems, LLC 2 awardees Top agencies USAF (Department of the Air Force)	$156,015,275	0.4%	Rank history: not on the FY2021 list, #34 in FY2022, #36 in FY2023 and #31 in FY2025; down 3 since FY2023.
40	Scientific Research Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) OSD (Office of the Secretary of Defense)	$155,181,655	0.4%	Rank history: not on the FY2021–FY2022 lists, #58 in FY2023 and #28 in FY2025; up 18 since FY2023.
41	Systems Planning and Analysis, Inc. Top agencies Navy (Department of the Navy) DTRA (Defense Threat Reduction Agency) OSD (Office of the Secretary of Defense)	$137,479,109	0.4%	Rank history: #64 in FY2021, #43 in FY2022, #46 in FY2023 and #35 in FY2025; up 5 since FY2023.
42	Space Network Solutions LLC Top agencies NASA (National Aeronautics and Space Administration)	$125,314,492	0.3%	Rank history: not on the FY2021–FY2023 lists and #64 in FY2025; up 180 since FY2023.
43	Mag DS Corp Top agencies Army (Department of the Army) DISA (Defense Information Systems Agency)	$124,115,920	0.3%	Rank history: not on the FY2021–FY2023 lists and #44 in FY2025; new.
44	Arctic Slope Regional Corporation 10 awardees, including Asrc Federal System Solutions LLC, Netcentric Technology, LLC and Arctic Slope Technical Services, Inc. Top agencies DOT (Department of Transportation) USAF (Department of the Air Force) Commerce (Department of Commerce)	$122,462,409	0.3%	Rank history: #29 in FY2021, #29 in FY2022, #38 in FY2023 and #27 in FY2025; down 6 since FY2023.
45	Bell Boeing Joint Project Office Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$120,662,998	0.3%	Rank history: not on the FY2021–FY2023 lists and #50 in FY2025; new.
46	Tetra Tech, Inc. 9 awardees, including LS Technologies LLC, Management Systems International, Inc. and Ard, Inc. Top agencies USAID (US Agency for International Development) DOT (Department of Transportation) USAF (Department of the Air Force)	$118,680,488	0.3%	Rank history: #85 in FY2021, #95 in FY2022, #72 in FY2023 and #54 in FY2025; up 26 since FY2023.
47	Intuitive Research and Technology Corporation 3 awardees Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$118,578,925	0.3%	Rank history: #33 in FY2021, #58 in FY2022, #54 in FY2023 and #30 in FY2025; up 7 since FY2023.
48	Energy Technology Alliance LLC Top agencies DOE (Department of Energy)	$117,088,826	0.3%	Rank history: not on the FY2021–FY2023 lists and #62 in FY2025; new.
49	Linquest Corporation Top agencies USAF (Department of the Air Force)	$116,188,683	0.3%	Rank history: #35 in FY2021, #42 in FY2022, #44 in FY2023 and #45 in FY2025; down 5 since FY2023.
50	Applied Research Associates, Inc. Top agencies Army (Department of the Army) DTRA (Defense Threat Reduction Agency) DHS (Department of Homeland Security)	$116,064,988	0.3%	Rank history: #60 in FY2021, #39 in FY2022, #34 in FY2023 and #46 in FY2025; down 16 since FY2023.
51	Deloitte Consulting LLP Top agencies Treasury (Department of the Treasury) USAID (US Agency for International Development) DHA (Defense Health Agency)	$110,794,526	0.3%	Rank history: not on the FY2021 list, #75 in FY2022, #39 in FY2023 and not on the FY2025 list; down 12 since FY2023.
52	Noblis, Inc. 2 awardees, including Noblis MSD LLC Top agencies DOT (Department of Transportation) Navy (Department of the Navy) Commerce (Department of Commerce)	$109,884,794	0.3%	Rank history: #42 in FY2021, #33 in FY2022, #33 in FY2023 and #56 in FY2025; down 19 since FY2023.
53	Sev1Tech, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$109,213,772	0.3%	Rank history: #39 in FY2021, #44 in FY2022, #45 in FY2023 and #33 in FY2025; down 8 since FY2023.
54	DCS Corporation Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$104,076,961	0.3%	Rank history: #28 in FY2021, #28 in FY2022, #27 in FY2023 and #58 in FY2025; down 27 since FY2023.
55	Aerodyne-Sgt Engineering Services, LLC Top agencies NASA (National Aeronautics and Space Administration)	$101,244,456	0.3%	Rank history: not on the FY2021–FY2022 lists, #41 in FY2023 and #55 in FY2025; down 14 since FY2023.
56	General Atomics Aeronautical Systems, Inc. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security)	$100,282,343	0.3%	Rank history: not on the FY2021–FY2023 lists and #18 in FY2025; new.
57	V2X, Inc. 3 awardees, including V2X Aerospace LLC, V2X Systems LLC and Vectrus Systems LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$95,637,485	0.3%	Rank history: not on the FY2021–FY2023 lists and #41 in FY2025; new.
58	Consortium Management Group, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$95,572,706	0.3%	Rank history: not on the FY2021 list, #70 in FY2022, #63 in FY2023 and #57 in FY2025; up 5 since FY2023.
59	CORE4CE LLC Top agencies Navy (Department of the Navy) DHA (Defense Health Agency)	$95,385,291	0.3%	Rank history: not on the FY2021–FY2023 lists and #60 in FY2025; new.
60	Gryphon Technologies L.C. Top agencies Navy (Department of the Navy)	$93,643,211	0.3%	Rank history: not on the FY2021–FY2023 lists and #72 in FY2025; new.
61	Intrepid LLC Top agencies Army (Department of the Army)	$93,078,162	0.3%	Rank history: not on the FY2021–FY2023 lists and #53 in FY2025; new.
62	Peraton Inc. 2 awardees, including Peraton Enterprise Solutions LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) CFTC (Commodity Futures Trading Commission)	$92,648,657	0.3%	Rank history: not on the FY2021–FY2023 lists and #49 in FY2025; new.
63	Colsa Corp Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$92,560,832	0.3%	Rank history: #22 in FY2021, #45 in FY2022, #61 in FY2023 and #67 in FY2025; down 2 since FY2023.
64	CQ JV, LLC Top agencies USAF (Department of the Air Force)	$90,979,051	0.3%	Rank history: not on the FY2021 list, #54 in FY2022, #62 in FY2023 and #43 in FY2025; down 2 since FY2023.
65	Axient LLC Top agencies USAF (Department of the Air Force)	$83,388,206	0.2%	Rank history: #31 in FY2021, #56 in FY2022, #60 in FY2023 and #74 in FY2025; down 5 since FY2023.
66	MP Solutions, LLC Top agencies MDA (DOD Missile Defense Agency)	$81,014,893	0.2%	Rank history: not on the FY2021 list, #69 in FY2022, #82 in FY2023 and #85 in FY2025; up 16 since FY2023.
67	Georgia TECH Applied Research Corp Top agencies USAF (Department of the Air Force)	$80,824,649	0.2%	Rank history: not on the FY2021–FY2023 lists and #51 in FY2025; new.
68	Envistacom, L.l.c Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$79,803,966	0.2%	Rank history: #61 in FY2021, #51 in FY2022, not on the FY2023 list and not on the FY2025 list; up 56 since FY2023.
69	International Business Machines Corporation 3 awardees Top agencies DMEA (Defense Microelectronics Activity) USAID (US Agency for International Development) Treasury (Department of the Treasury)	$79,292,887	0.2%	Rank history: not on the FY2021 list, #97 in FY2022, #96 in FY2023 and not on the FY2025 list; up 27 since FY2023.
70	American Systems Corporation Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$78,448,022	0.2%	Rank history: #57 in FY2021, #78 in FY2022, #59 in FY2023 and #90 in FY2025; down 11 since FY2023.
71	Parsons Government Services Inc. Top agencies MDA (DOD Missile Defense Agency) Army (Department of the Army) DOE (Department of Energy)	$77,669,091	0.2%	Rank history: #86 in FY2021, not on the FY2022–FY2023 lists and not on the FY2025 list; returned.
72	Science Systems and Applications, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$77,326,168	0.2%	Rank history: #40 in FY2021, #37 in FY2022, #49 in FY2023 and not on the FY2025 list; down 23 since FY2023.
73	Bowhead Program Management & Operations, LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$72,805,658	0.2%	Rank history: not on the FY2021–FY2022 lists, #77 in FY2023 and #69 in FY2025; up 4 since FY2023.
74	Barrios Technology, LLC Top agencies NASA (National Aeronautics and Space Administration)	$71,969,251	0.2%	Rank history: #69 in FY2021, #52 in FY2022, #74 in FY2023 and not on the FY2025 list; unchanged since FY2023.
75	Noblis MSD LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$71,891,997	0.2%	Rank history: not on the FY2021–FY2023 lists and #71 in FY2025; new.
76	Southwest Range Services LLC Top agencies Army (Department of the Army)	$71,490,315	0.2%	Rank history: #66 in FY2021, #59 in FY2022, #75 in FY2023 and #86 in FY2025; down 1 since FY2023.
77	Sigmatech Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$71,486,802	0.2%	Rank history: not on the FY2021–FY2023 lists and #61 in FY2025; up 41 since FY2023.
78	P E Systems, Inc. Top agencies USAF (Department of the Air Force)	$71,319,428	0.2%	Rank history: #59 in FY2021, #92 in FY2022, #71 in FY2023 and #42 in FY2025; down 7 since FY2023.
79	Mitchell Vantage Systems LLC Top agencies NASA (National Aeronautics and Space Administration)	$71,107,227	0.2%	Rank history: not on the FY2021–FY2022 lists, #55 in FY2023 and not on the FY2025 list; down 24 since FY2023.
80	Karsun Solutions LLC Top agencies DOT (Department of Transportation)	$71,090,967	0.2%	Rank history: #63 in FY2021, #67 in FY2022, #67 in FY2023 and #65 in FY2025; down 13 since FY2023.
81	Honeywell International Inc. 6 awardees Top agencies WHS (DOD Washington Headquarters Service) USAF (Department of the Air Force) Army (Department of the Army)	$70,654,466	0.2%	Rank history: not on the FY2021 list, #86 in FY2022, #66 in FY2023 and #97 in FY2025; down 15 since FY2023.
82	Teledyne Technologies Incorporated 3 awardees, including Teledyne Brown Engineering, Inc. and Teledyne Flir Defense, Inc. Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy) USAF (Department of the Air Force)	$70,642,751	0.2%	Rank history: #81 in FY2021, #94 in FY2022, #68 in FY2023 and #80 in FY2025; down 14 since FY2023.
83	Kbr, Inc. 4 awardees, including KBR Wyle Services, LLC Top agencies NASA (National Aeronautics and Space Administration) DOT (Department of Transportation) Army (Department of the Army)	$69,594,704	0.2%	Rank history: #24 in FY2021, #26 in FY2022, #26 in FY2023 and not on the FY2025 list; down 57 since FY2023.
84	Delphinus Engineering LLC Top agencies Navy (Department of the Navy)	$68,564,787	0.2%	Rank history: #53 in FY2021, #50 in FY2022, #87 in FY2023 and #59 in FY2025; up 3 since FY2023.
85	Simventions Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$66,992,387	0.2%	Rank history: #99 in FY2021, #83 in FY2022, #85 in FY2023 and #77 in FY2025; unchanged since FY2023.
86	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)	$65,835,638	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
87	Sigma Defense Systems LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DISA (Defense Information Systems Agency)	$64,722,049	0.2%	Rank history: not on the FY2021–FY2022 lists, #57 in FY2023 and #78 in FY2025; down 30 since FY2023.
88	Indus Technology Inc. Top agencies Navy (Department of the Navy)	$64,614,181	0.2%	Rank history: #96 in FY2021, #99 in FY2022, #90 in FY2023 and #93 in FY2025; up 2 since FY2023.
89	Mayvin, Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army)	$62,474,201	0.2%	Rank history: not on the FY2021 list, #81 in FY2022, #83 in FY2023 and #66 in FY2025; down 6 since FY2023.
90	Universal Technical Resource Services Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$61,848,838	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 24 since FY2023.
91	Falconwood Top agencies Navy (Department of the Navy)	$59,808,504	0.2%	Rank history: #84 in FY2021, #76 in FY2022, #76 in FY2023 and #83 in FY2025; down 15 since FY2023.
92	Mantech Advanced Systems International, Inc. Top agencies Navy (Department of the Navy) DOS (Department of State) Army (Department of the Army)	$55,582,450	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
93	Aviation Systems Engineering Company Inc. Top agencies Navy (Department of the Navy)	$55,311,843	0.2%	Rank history: not on the FY2021–FY2023 lists and #94 in FY2025; up 19 since FY2023.
94	Keylogic, LLC Top agencies DOE (Department of Energy)	$55,275,304	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
95	Rsi-Quantitech JV LLC Top agencies NASA (National Aeronautics and Space Administration)	$55,079,775	0.2%	Rank history: not on the FY2021–FY2023 lists and #88 in FY2025; new.
96	Sayres and Associates LLC Top agencies Navy (Department of the Navy)	$54,682,638	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 179 since FY2023.
97	Palantir Technologies Inc. 2 awardees, including Palantir USG Inc. Top agencies Army (Department of the Army) OSD (Office of the Secretary of Defense) DOT (Department of Transportation)	$53,976,191	0.1%	Rank history: not on the FY2021–FY2023 lists and #70 in FY2025; new.
98	Decision Technologies, Inc. Top agencies Navy (Department of the Navy)	$53,239,873	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 21 since FY2023.
99	Data Systems Analysts Inc. 2 awardees Top agencies Army (Department of the Army) Navy (Department of the Navy) DOJ (Department of Justice)	$52,347,889	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 23 since FY2023.
100	HP Enterprise Services LLC 6 awardees, including Dhpc Technologies, Inc., Peraton Inc. and Peraton Technology Services Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security) DISA (Defense Information Systems Agency)	$51,710,080	0.1%	Rank history: #46 in FY2021, #27 in FY2022, #22 in FY2023 and not on the FY2025 list; down 78 since FY2023.

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 $36.1 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 2024 ran Oct 1, 2023 – Sep 30, 2024. 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 FY2023. "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 FY2023 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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