Top 100 Contractors in PSC A: Research and Development, FY2024

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Lockheed Martin Corporation 41 awardees, including Sikorsky Aircraft Corporation and Lockheed Martin Services, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) MDA (DOD Missile Defense Agency)	$9,054,060,340	10.8%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023 and #1 in FY2025; unchanged since FY2023.
2	Northrop Grumman Corporation 61 awardees, including Northrop Grumman Systems Corp and Alliant Techsystems Operations LLC Top agencies USAF (Department of the Air Force) MDA (DOD Missile Defense Agency) Navy (Department of the Navy)	$7,647,066,059	9.2%	Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023 and #2 in FY2025; unchanged since FY2023.
3	Advanced Technology International Top agencies Navy (Department of the Navy) HHS (Department of Health and Human Services) Army (Department of the Army)	$3,941,579,158	4.7%	Rank history: #56 in FY2021, not on the FY2022–FY2023 lists and #4 in FY2025; returned.
4	The Boeing Company 43 awardees, including Millennium Space Systems, Inc. and Aurora Flight Sciences Corporation Top agencies NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force) Navy (Department of the Navy)	$3,753,912,113	4.5%	Rank history: #5 in FY2021, #5 in FY2022, #7 in FY2023 and #6 in FY2025; up 3 since FY2023.
5	Lawrence Livermore National Security, LLC Top agencies DOE (Department of Energy) USAF (Department of the Air Force) Army (Department of the Army)	$3,166,514,285	3.8%	Rank history: #3 in FY2021, #3 in FY2022, #5 in FY2023 and #3 in FY2025; unchanged since FY2023.
6	RTX Corporation 59 awardees, including Raytheon Company, Rockwell Collins, Inc. and RTX BBN Technologies, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$2,657,045,695	3.2%	Rank history: #6 in FY2021, #6 in FY2022, #4 in FY2023 and #5 in FY2025; down 2 since FY2023.
7	California Institute of Technology 3 awardees Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy) Commerce (Department of Commerce)	$2,243,952,485	2.7%	Rank history: #4 in FY2021, #4 in FY2022, #6 in FY2023 and #7 in FY2025; down 1 since FY2023.
8	Analytic Services Inc. Through Advanced Technology International Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy) Army (Department of the Army)	$1,783,225,234	2.1%	Rank history: #15 in FY2021, #14 in FY2022, #3 in FY2023 and not on the FY2025 list; down 5 since FY2023.
9	Massachusetts Institute of Technology 3 awardees Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) NASA (National Aeronautics and Space Administration)	$1,484,715,534	1.8%	Rank history: #10 in FY2021, #9 in FY2022, #11 in FY2023 and #9 in FY2025; up 2 since FY2023.
10	The Johns Hopkins University Applied Physics Laboratory LLC Top agencies Navy (Department of the Navy) NASA (National Aeronautics and Space Administration) MDA (DOD Missile Defense Agency)	$1,377,605,580	1.7%	Rank history: #85 in FY2021, not on the FY2022–FY2023 lists and not on the FY2025 list; returned.
11	Leidos Holdings, Inc. 16 awardees, including Leidos Biomedical Research Inc., Leidos, Inc. and Dynetics, Inc. Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy) USAF (Department of the Air Force)	$1,274,947,815	1.5%	Rank history: #8 in FY2021, #10 in FY2022, #10 in FY2023 and #11 in FY2025; down 1 since FY2023.
12	Booz Allen Hamilton Holding Corporation 5 awardees, including Booz Allen Hamilton Inc. and Everwatch Solutions Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$1,166,350,849	1.4%	Rank history: #14 in FY2021, #12 in FY2022, #15 in FY2023 and #12 in FY2025; up 3 since FY2023.
13	The Mitre Corporation 3 awardees Top agencies OSD (Office of the Secretary of Defense) AAFES (Department of Defense Army and Air Force Exchange Service) DHS (Department of Homeland Security)	$1,054,070,563	1.3%	Rank history: #7 in FY2021, #7 in FY2022, #9 in FY2023 and #14 in FY2025; down 4 since FY2023.
14	National Security Technology Accelerator Inc. Top agencies WHS (DOD Washington Headquarters Service) OSD (Office of the Secretary of Defense) USAF (Department of the Air Force)	$1,044,662,650	1.3%	Rank history: #26 in FY2021, #20 in FY2022, #13 in FY2023 and #10 in FY2025; down 1 since FY2023.
15	Textron Inc. 4 awardees, including Bell Textron Inc. and Textron Systems Corporation Top agencies Army (Department of the Army) Navy (Department of the Navy)	$1,026,051,747	1.2%	Rank history: #34 in FY2021, #38 in FY2022, #17 in FY2023 and #13 in FY2025; up 2 since FY2023.
16	Science Applications International Corporation 7 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$1,016,326,997	1.2%	Rank history: #12 in FY2021, #13 in FY2022, #14 in FY2023 and #19 in FY2025; down 2 since FY2023.
17	L3Harris Technologies, Inc. 34 awardees, including L3 Technologies, Inc., Aerojet Rocketdyne of DE, Inc. and L3Harris Technologies Integrated Systems L.P. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Commerce (Department of Commerce)	$919,785,871	1.1%	Rank history: #22 in FY2021, #16 in FY2022, #24 in FY2023 and #15 in FY2025; up 7 since FY2023.
18	Space Exploration Technologies Corp. Top agencies NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force) DARPA (Defense Advanced Research Projects Agency)	$847,456,095	1.0%	Rank history: #17 in FY2021, #11 in FY2022, #12 in FY2023 and #25 in FY2025; down 6 since FY2023.
19	Huntington Ingalls Industries, Inc. 10 awardees, including HII Mission Technologies Corp, Enlighten It Consulting LLC and HII Technical Solutions Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$702,307,141	0.8%	Rank history: not on the FY2021 list, #23 in FY2022, not on the FY2023 list and #21 in FY2025; up 377 since FY2023.
20	BAE Systems 29 awardees, including BAE Systems Land and Armaments L.P., BAE Systems Information & Electronic Systems Integration Inc. and BAE Systems Technology Solutions & Services Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$674,359,320	0.8%	Rank history: #13 in FY2021, #19 in FY2022, #20 in FY2023 and #16 in FY2025; unchanged since FY2023.
21	General Electric Company 8 awardees, including GE Aviation Systems LLC, GE Energy Power Conversion Naval Systems Inc. and Torch Research, LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) NASA (National Aeronautics and Space Administration)	$599,221,994	0.7%	Rank history: #29 in FY2021, #30 in FY2022, #29 in FY2023 and #28 in FY2025; up 8 since FY2023.
22	KBR Wyle Services LLC 9 awardees, including Dependable Global Solutions, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$582,699,121	0.7%	Rank history: not on the FY2021–FY2023 lists and #17 in FY2025; new.
23	Blue Origin Washington, LLC Top agencies NASA (National Aeronautics and Space Administration)	$503,942,293	0.6%	Rank history: not on the FY2021–FY2022 lists, #27 in FY2023 and #18 in FY2025; up 4 since FY2023.
24	Mantech Tsg-2 Joint Venture Top agencies Navy (Department of the Navy) OSD (Office of the Secretary of Defense) Army (Department of the Army)	$478,116,931	0.6%	Rank history: #30 in FY2021, #33 in FY2022, #39 in FY2023 and #26 in FY2025; up 15 since FY2023.
25	General Dynamics Corporation 21 awardees, including General Dynamics Mission Systems, Inc., General Dynamics Information Technology, Inc. and Applied Physical Sciences Corp Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$474,705,151	0.6%	Rank history: #19 in FY2021, #25 in FY2022, #26 in FY2023 and #20 in FY2025; up 1 since FY2023.
26	York Space Systems LLC Top agencies USAF (Department of the Air Force)	$471,717,835	0.6%	Rank history: not on the FY2021 list, #82 in FY2022, #43 in FY2023 and #35 in FY2025; up 17 since FY2023.
27	Bechtel Corp 2 awardees, including Bechtel National, Inc. and National Aerospace Solutions, LLC Top agencies NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force)	$450,546,285	0.5%	Rank history: #28 in FY2021, #26 in FY2022, #18 in FY2023 and #36 in FY2025; down 9 since FY2023.
28	Defense Energy Center of Excellence Top agencies USAF (Department of the Air Force)	$449,597,987	0.5%	Rank history: #42 in FY2021, #39 in FY2022, #19 in FY2023 and not on the FY2025 list; down 9 since FY2023.
29	Battelle Memorial Institute 5 awardees, including Battelle Savannah River Alliance, LLC and Battelle National Biodefense Institute, LLC Top agencies DOE (Department of Energy) Army (Department of the Army) OSD (Office of the Secretary of Defense)	$382,322,733	0.5%	Rank history: #31 in FY2021, #21 in FY2022, #22 in FY2023 and #32 in FY2025; down 7 since FY2023.
30	Georgia TECH Applied Research Corp Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$370,077,959	0.4%	Rank history: not on the FY2021–FY2023 lists and #24 in FY2025; new.
31	Sierra Nevada Company, LLC 4 awardees, including Sierra Space Corp and Kutta Technologies, LLC Top agencies USAF (Department of the Air Force) USSOCOM (United States Special Operations Command) NASA (National Aeronautics and Space Administration)	$358,866,985	0.4%	Rank history: not on the FY2021–FY2023 lists and #27 in FY2025; new.
32	CACI International Inc. 10 awardees, including Caci, Inc. - Federal, Caci Technologies, LLC and LGS Innovations LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$338,971,575	0.4%	Rank history: #39 in FY2021, #40 in FY2022, #28 in FY2023 and #23 in FY2025; down 4 since FY2023.
33	The Johns Hopkins University 2 awardees, including The Johns Hopkins University Applied Physics Laboratory LLC Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy) MDA (DOD Missile Defense Agency)	$334,295,635	0.4%	Rank history: #9 in FY2021, #8 in FY2022, #8 in FY2023 and not on the FY2025 list; down 25 since FY2023.
34	The Pennsylvania State University Top agencies Navy (Department of the Navy) OSD (Office of the Secretary of Defense) DTRA (Defense Threat Reduction Agency)	$315,975,977	0.4%	Rank history: #36 in FY2021, #31 in FY2022, #36 in FY2023 and #30 in FY2025; up 2 since FY2023.
35	Seqirus Inc. Top agencies HHS (Department of Health and Human Services)	$311,476,310	0.4%	Rank history: not on the FY2021–FY2023 lists and #97 in FY2025; new.
36	Raytheon Company 2 awardees Top agencies USAF (Department of the Air Force) MDA (DOD Missile Defense Agency) Navy (Department of the Navy)	$298,696,116	0.4%	Rank history: not on the FY2021–FY2023 lists and #80 in FY2025; new.
37	Medical Technology Enterprise Consortium Top agencies DHA (Defense Health Agency) Army (Department of the Army) Navy (Department of the Navy)	$291,654,671	0.3%	Rank history: #33 in FY2021, #49 in FY2022, #42 in FY2023 and #43 in FY2025; up 5 since FY2023.
38	Torch Technologies Inc. Top agencies Army (Department of the Army) MDA (DOD Missile Defense Agency) USAF (Department of the Air Force)	$291,461,281	0.3%	Rank history: #54 in FY2021, #24 in FY2022, #34 in FY2023 and #33 in FY2025; down 4 since FY2023.
39	Battelle Savannah River Alliance, LLC Top agencies DOE (Department of Energy)	$278,585,044	0.3%	Rank history: #41 in FY2021, not on the FY2022–FY2023 lists and #34 in FY2025; returned.
40	Applied Research Associates, Inc. 2 awardees, including Neya Systems LLC Top agencies DTRA (Defense Threat Reduction Agency) USAF (Department of the Air Force) Army (Department of the Army)	$277,074,372	0.3%	Rank history: #37 in FY2021, #34 in FY2022, #37 in FY2023 and #42 in FY2025; down 3 since FY2023.
41	Carnegie-Mellon University 3 awardees Top agencies USAF (Department of the Air Force) HHS (Department of Health and Human Services) Army (Department of the Army)	$245,808,317	0.3%	Rank history: #43 in FY2021, #42 in FY2022, #51 in FY2023 and #57 in FY2025; up 10 since FY2023.
42	Association of Universities for Research In Astronomy, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$236,817,169	0.3%	Rank history: not on the FY2021–FY2023 lists and #31 in FY2025; new.
43	National Aerospace Solutions, LLC Top agencies USAF (Department of the Air Force) WHS (DOD Washington Headquarters Service)	$227,362,966	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
44	Kbr, Inc. 9 awardees, including KBR Wyle Services, LLC and Dependable Global Solutions, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$207,166,398	0.2%	Rank history: #16 in FY2021, #17 in FY2022, #16 in FY2023 and not on the FY2025 list; down 28 since FY2023.
45	DCS Corporation 2 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$205,432,371	0.2%	Rank history: #55 in FY2021, #76 in FY2022, #64 in FY2023 and #40 in FY2025; up 19 since FY2023.
46	Southwest Research Institute Top agencies NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force) DTRA (Defense Threat Reduction Agency)	$194,261,092	0.2%	Rank history: #53 in FY2021, #48 in FY2022, #47 in FY2023 and #45 in FY2025; up 1 since FY2023.
47	Parkdale Advanced Materials Inc. Top agencies HHS (Department of Health and Human Services)	$187,360,720	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
48	Ball Corp 2 awardees, including BAE Systems Space & Mission Systems Inc. and Ball Aerospace & Technologies Corp. Top agencies USAF (Department of the Air Force) Commerce (Department of Commerce) NASA (National Aeronautics and Space Administration)	$185,971,249	0.2%	Rank history: #40 in FY2021, #53 in FY2022, #40 in FY2023 and not on the FY2025 list; down 8 since FY2023.
49	Jacobs Engineering Group Inc. 9 awardees, including Amentum Technology, Inc. and The Keyw Corporation Top agencies MDA (DOD Missile Defense Agency) Navy (Department of the Navy) DISA (Defense Information Systems Agency)	$184,588,351	0.2%	Rank history: #11 in FY2021, #15 in FY2022, #25 in FY2023 and not on the FY2025 list; down 24 since FY2023.
50	Bluestaq LLC Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency)	$155,769,626	0.2%	Rank history: not on the FY2021–FY2023 lists and #66 in FY2025; up 105 since FY2023.
51	The Aerospace Corporation Top agencies NASA (National Aeronautics and Space Administration) DOE (Department of Energy) Commerce (Department of Commerce)	$154,980,292	0.2%	Rank history: #63 in FY2021, #65 in FY2022, #59 in FY2023 and #50 in FY2025; up 8 since FY2023.
52	Amentum Technology, Inc. Top agencies MDA (DOD Missile Defense Agency)	$146,437,527	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
53	Emergent Biosolutions Inc. Through Emergent Product Development Gaithersburg Inc. Top agencies HHS (Department of Health and Human Services)	$145,628,762	0.2%	Rank history: not on the FY2021–FY2023 lists and #79 in FY2025; new.
54	University of Dayton Top agencies USAF (Department of the Air Force) Army (Department of the Army) WHS (DOD Washington Headquarters Service)	$144,854,738	0.2%	Rank history: #78 in FY2021, #84 in FY2022, #70 in FY2023 and #44 in FY2025; up 16 since FY2023.
55	PPD Development LP 4 awardees, including Life Technologies Corporation, Thermo Electron North America LLC and Fisher Scientific Company L.L.C. Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) Army (Department of the Army)	$144,403,271	0.2%	Rank history: not on the FY2021–FY2022 lists, #57 in FY2023 and not on the FY2025 list; up 2 since FY2023.
56	Rocket Lab National Security LLC Top agencies USAF (Department of the Air Force)	$138,658,464	0.2%	Rank history: not on the FY2021–FY2023 lists and #62 in FY2025; new.
57	Modern Technology Solutions, Inc. Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense) Army (Department of the Army)	$137,851,169	0.2%	Rank history: #100 in FY2021, #57 in FY2022, #55 in FY2023 and #38 in FY2025; down 2 since FY2023.
58	Linquest Corporation 2 awardees Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$135,655,142	0.2%	Rank history: #99 in FY2021, #72 in FY2022, #53 in FY2023 and #67 in FY2025; down 5 since FY2023.
59	American Systems Corporation Top agencies OSD (Office of the Secretary of Defense) Navy (Department of the Navy) NASA (National Aeronautics and Space Administration)	$134,174,739	0.2%	Rank history: not on the FY2021 list, #93 in FY2022, #77 in FY2023 and #70 in FY2025; up 18 since FY2023.
60	Teledyne Technologies Incorporated 10 awardees, including Teledyne Brown Engineering, Inc., Teledyne Scientific & Imaging, LLC and Teledyne Flir Defense, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) DARPA (Defense Advanced Research Projects Agency)	$130,302,205	0.2%	Rank history: #79 in FY2021, not on the FY2022 list, #99 in FY2023 and #84 in FY2025; up 39 since FY2023.
61	Amgen USA Inc Top agencies HHS (Department of Health and Human Services)	$129,850,668	0.2%	Rank history: not on the FY2021–FY2023 lists and #86 in FY2025; new.
62	Systems & Technology Research LLC Top agencies DARPA (Defense Advanced Research Projects Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$129,810,313	0.2%	Rank history: #47 in FY2021, #62 in FY2022, #56 in FY2023 and #56 in FY2025; down 6 since FY2023.
63	Radiance Technologies, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) WHS (DOD Washington Headquarters Service)	$127,275,613	0.2%	Rank history: not on the FY2021–FY2023 lists and #64 in FY2025; new.
64	Anduril Industries Inc. Top agencies OSD (Office of the Secretary of Defense) USAF (Department of the Air Force) WHS (DOD Washington Headquarters Service)	$126,305,421	0.2%	Rank history: not on the FY2021–FY2023 lists and #39 in FY2025; up 145 since FY2023.
65	Mag DS Corp Top agencies Army (Department of the Army)	$124,230,040	0.1%	Rank history: not on the FY2021–FY2023 lists and #98 in FY2025; new.
66	Arctic Slope Regional Corporation 9 awardees, including Asrc Federal System Solutions LLC, Analytical Services, Inc. and Asrc Federal Professional Services, LLC Top agencies USAF (Department of the Air Force) MDA (DOD Missile Defense Agency) Navy (Department of the Navy)	$124,026,726	0.1%	Rank history: #75 in FY2021, #70 in FY2022, #76 in FY2023 and #51 in FY2025; up 10 since FY2023.
67	Intrepid LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$123,026,250	0.1%	Rank history: not on the FY2021–FY2023 lists and #59 in FY2025; new.
68	Deloitte Through Deloitte Consulting LLP Top agencies WHS (DOD Washington Headquarters Service) HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$123,012,476	0.1%	Rank history: not on the FY2021–FY2023 lists and #49 in FY2025; new.
69	Caci Technologies LLC 4 awardees, including Caci, Inc. - Federal, LGS Innovations LLC and Caci LGS Innovations LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$119,453,756	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
70	Parsons Corporation 8 awardees, including Parsons Government Services Inc., Parsons Technical Services Inc. and Space Ground System Solutions, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$115,141,659	0.1%	Rank history: #25 in FY2021, #22 in FY2022, #41 in FY2023 and #48 in FY2025; down 29 since FY2023.
71	Science Systems and Applications, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$115,140,390	0.1%	Rank history: #67 in FY2021, #69 in FY2022, #69 in FY2023 and #76 in FY2025; down 2 since FY2023.
72	Siga Technologies, Inc. Top agencies HHS (Department of Health and Human Services)	$112,552,320	0.1%	Rank history: #58 in FY2021, not on the FY2022 list, #62 in FY2023 and not on the FY2025 list; down 10 since FY2023.
73	Palantir Technologies Inc. Through Palantir USG Inc. Top agencies OSD (Office of the Secretary of Defense) Army (Department of the Army)	$110,650,204	0.1%	Rank history: not on the FY2021–FY2023 lists and #37 in FY2025; new.
74	Seacorp, LLC 2 awardees Top agencies Navy (Department of the Navy)	$109,650,433	0.1%	Rank history: not on the FY2021–FY2022 lists, #95 in FY2023 and #83 in FY2025; up 21 since FY2023.
75	Prescient Edge Corporation Top agencies Navy (Department of the Navy)	$108,979,587	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 42 since FY2023.
76	Trax International Corporation Top agencies Army (Department of the Army)	$107,764,801	0.1%	Rank history: #59 in FY2021, #66 in FY2022, #74 in FY2023 and #74 in FY2025; down 2 since FY2023.
77	Peraton Inc. 2 awardees Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy) Army (Department of the Army)	$107,130,130	0.1%	Rank history: not on the FY2021–FY2023 lists and #63 in FY2025; new.
78	Westat, Inc. 2 awardees, including Insight Policy Research, Inc. Top agencies HHS (Department of Health and Human Services) ED (Department of Education) DHA (Defense Health Agency)	$105,809,681	0.1%	Rank history: #57 in FY2021, #51 in FY2022, #89 in FY2023 and #96 in FY2025; up 11 since FY2023.
79	Jetzero, Inc. Top agencies USAF (Department of the Air Force)	$105,045,472	0.1%	Rank history: not on the FY2021–FY2023 lists and #94 in FY2025; up 71 since FY2023.
80	Sri International Top agencies DARPA (Defense Advanced Research Projects Agency) HHS (Department of Health and Human Services) DLA (Defense Logistics Agency)	$104,857,462	0.1%	Rank history: #50 in FY2021, #50 in FY2022, #61 in FY2023 and #90 in FY2025; down 19 since FY2023.
81	Diazyme Laboratories Inc. 2 awardees, including General Atomics Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DOE (Department of Energy)	$104,534,829	0.1%	Rank history: not on the FY2021–FY2023 lists and #93 in FY2025; new.
82	Utah State University Space Dynamics Laboratory Top agencies USAF (Department of the Air Force) MDA (DOD Missile Defense Agency) Navy (Department of the Navy)	$104,292,143	0.1%	Rank history: not on the FY2021–FY2023 lists and #69 in FY2025; new.
83	Scitec Innovations LLC Top agencies USAF (Department of the Air Force) MDA (DOD Missile Defense Agency)	$99,491,271	0.1%	Rank history: not on the FY2021–FY2023 lists and #95 in FY2025; up 58 since FY2023.
84	Fibertek, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) WHS (DOD Washington Headquarters Service)	$98,741,277	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 28 since FY2023.
85	Intuitive Machines, LLC Top agencies NASA (National Aeronautics and Space Administration)	$98,459,706	0.1%	Rank history: #84 in FY2021, #75 in FY2022, not on the FY2023 list and not on the FY2025 list; up 36 since FY2023.
86	Innovative Defense Technologies LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) MDA (DOD Missile Defense Agency)	$97,696,990	0.1%	Rank history: not on the FY2021–FY2023 lists and #68 in FY2025; new.
87	The National Advanced Mobility Consortium, Inc. Top agencies Army (Department of the Army)	$94,727,194	0.1%	Rank history: #69 in FY2021, #68 in FY2022, #38 in FY2023 and #58 in FY2025; down 49 since FY2023.
88	University of Texas System 12 awardees, including University of Texas At Austin, The University of Texas At San Antonio and University of Texas At Dallas Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration)	$93,931,896	0.1%	Rank history: #44 in FY2021, #47 in FY2022, #54 in FY2023 and not on the FY2025 list; down 34 since FY2023.
89	The Charles Stark Draper Laboratory, Inc. Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy) DARPA (Defense Advanced Research Projects Agency)	$93,553,717	0.1%	Rank history: #80 in FY2021, #78 in FY2022, not on the FY2023 list and #100 in FY2025; up 13 since FY2023.
90	United Launch Alliance, L.L.C. 2 awardees, including United Launch Services, LLC Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration)	$91,637,029	0.1%	Rank history: #27 in FY2021, #45 in FY2022, #80 in FY2023 and not on the FY2025 list; down 10 since FY2023.
91	Phlow Corp. Top agencies HHS (Department of Health and Human Services)	$91,119,397	0.1%	Rank history: not on the FY2021 list, #83 in FY2022, not on the FY2023 list and not on the FY2025 list; up 51 since FY2023.
92	Mantech International Corporation 2 awardees, including Mantech Advanced Systems International, Inc. and Mantech SRS Technologies, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$90,464,951	0.1%	Rank history: #51 in FY2021, #32 in FY2022, #44 in FY2023 and not on the FY2025 list; down 48 since FY2023.
93	Bluehalo, LLC Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense) Army (Department of the Army)	$89,714,830	0.1%	Rank history: #74 in FY2021, #85 in FY2022, #94 in FY2023 and not on the FY2025 list; up 1 since FY2023.
94	General Atomics Aeronautical Systems, Inc. Top agencies DARPA (Defense Advanced Research Projects Agency) WHS (DOD Washington Headquarters Service) Navy (Department of the Navy)	$89,166,585	0.1%	Rank history: not on the FY2021–FY2023 lists and #61 in FY2025; new.
95	Ascend Performance Materials Texas Inc. Top agencies HHS (Department of Health and Human Services)	$87,666,336	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
96	Amentum Services, Inc. 3 awardees, including Centra Technology, Inc. Top agencies Navy (Department of the Navy) OSD (Office of the Secretary of Defense) Army (Department of the Army)	$86,861,646	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
97	Assured Information Security, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) WHS (DOD Washington Headquarters Service)	$86,618,463	0.1%	Rank history: #48 in FY2021, #86 in FY2022, #84 in FY2023 and not on the FY2025 list; down 13 since FY2023.
98	General Atomic Technologies Corporation 3 awardees, including General Atomics Aeronautical Systems, Inc. and General Atomics Top agencies DARPA (Defense Advanced Research Projects Agency) Navy (Department of the Navy) WHS (DOD Washington Headquarters Service)	$85,832,604	0.1%	Rank history: #38 in FY2021, #35 in FY2022, #30 in FY2023 and not on the FY2025 list; down 68 since FY2023.
99	American Electronic Warfare Associates Incorporated Top agencies Navy (Department of the Navy)	$85,362,833	0.1%	Rank history: not on the FY2021–FY2023 lists and #82 in FY2025; new.
100	University of Maryland, College Park Top agencies NASA (National Aeronautics and Space Administration) OSD (Office of the Secretary of Defense) Navy (Department of the Navy)	$81,741,696	0.1%	Rank history: not on the FY2021–FY2023 lists and #47 in FY2025; up 359 since FY2023.

Rankings for the codes under PSC A

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 $83.5 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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