Top 100 Contractors in PSC AC13: National Defense R&D Services; Department of Defense – Military; Experimental Development, FY2025

Name: Top 100 Contractors in PSC AC13: National Defense R&D Services; Department of Defense – Military; Experimental Development, FY2025
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe

The top 10 won 62% of FY2025 PSC AC13 contract dollars

Contract obligations: $15,137,338,672 Net of deobligations, by contracts coded PSC AC13
Contractors: 697 Parent companies with an obligation
Largest contractor: Lockheed Martin Corporation $2.97 billion, 19.0% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Lockheed Martin Corporation 23 awardees Top agencies MDA (DOD Missile Defense Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$2,967,272,949	19.0%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023 and #1 in FY2024; unchanged since FY2024.
2	Northrop Grumman Corporation 18 awardees, including Northrop Grumman Systems Corporation Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$1,546,661,665	9.9%	Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023 and #2 in FY2024; unchanged since FY2024.
3	Advanced Technology International Top agencies Navy (Department of the Navy) Army (Department of the Army) OSD (Office of the Secretary of Defense)	$1,360,211,909	8.7%	Rank history: #42 in FY2021, not on the FY2022–FY2023 lists and #4 in FY2024; up 1 since FY2024.
4	National Security Technology Accelerator Inc. Top agencies USAF (Department of the Air Force) WHS (DOD Washington Headquarters Service) OSD (Office of the Secretary of Defense)	$1,195,214,386	7.7%	Rank history: #31 in FY2021, #15 in FY2022, #6 in FY2023 and #5 in FY2024; up 1 since FY2024.
5	RTX Corporation 18 awardees, including Raytheon Company, RTX BBN Technologies, Inc. and Rockwell Collins, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$869,405,299	5.6%	Rank history: #3 in FY2021, #3 in FY2022, #3 in FY2023 and #3 in FY2024; down 2 since FY2024.
6	The Boeing Company 10 awardees, including Millennium Space Systems, Inc., Aurora Flight Sciences Corporation and Argon ST, Inc. Top agencies USAF (Department of the Air Force) MDA (DOD Missile Defense Agency) Navy (Department of the Navy)	$609,132,756	3.9%	Rank history: #4 in FY2021, #6 in FY2022, #8 in FY2023 and #7 in FY2024; up 1 since FY2024.
7	L3Harris Technologies, Inc. 10 awardees, including L3Harris Technologies Integrated Systems L.P., L3 Technologies, Inc. and Fisica Applied Technologies, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) MDA (DOD Missile Defense Agency)	$493,036,732	3.2%	Rank history: #17 in FY2021, #5 in FY2022, #7 in FY2023 and #6 in FY2024; down 1 since FY2024.
8	General Dynamics Corporation 7 awardees, including General Dynamics Land Systems Inc., General Dynamics Mission Systems, Inc. and Applied Physical Sciences Corp Top agencies Army (Department of the Army) USAF (Department of the Air Force) DARPA (Defense Advanced Research Projects Agency)	$242,410,706	1.6%	Rank history: not on the FY2021 list, #82 in FY2022, #43 in FY2023 and #47 in FY2024; up 39 since FY2024.
9	BAE Systems Space & Mission Systems Inc. Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency) DARPA (Defense Advanced Research Projects Agency)	$214,399,721	1.4%	Rank history: not on the FY2021–FY2024 lists; up 269 since FY2024.
10	Amentum Holdings, Inc. 5 awardees, including Amentum Technology, Inc. and Amentum Services, Inc. Top agencies MDA (DOD Missile Defense Agency) Navy (Department of the Navy) OSD (Office of the Secretary of Defense)	$198,444,998	1.3%	Rank history: not on the FY2021–FY2024 lists; up 288 since FY2024.
11	Sierra Nevada Company, LLC 3 awardees, including Sierra Space Corp Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$189,581,159	1.2%	Rank history: not on the FY2021–FY2023 lists and #10 in FY2024; down 1 since FY2024.
12	BAE Systems 8 awardees, including BAE Systems Information & Electronic Systems Integration Inc. and BAE Systems Ordnance Systems Inc. Top agencies Navy (Department of the Navy) DARPA (Defense Advanced Research Projects Agency) USAF (Department of the Air Force)	$180,318,518	1.2%	Rank history: #9 in FY2021, #13 in FY2022, #11 in FY2023 and #14 in FY2024; up 2 since FY2024.
13	Science Applications International Corporation Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$168,398,841	1.1%	Rank history: not on the FY2021 list, #16 in FY2022, #13 in FY2023 and #15 in FY2024; up 2 since FY2024.
14	Space Exploration Technologies Corp. 2 awardees Top agencies USAF (Department of the Air Force) DARPA (Defense Advanced Research Projects Agency)	$130,098,784	0.8%	Rank history: #37 in FY2021, #18 in FY2022, #19 in FY2023 and #17 in FY2024; up 3 since FY2024.
15	York Space Systems LLC Top agencies USAF (Department of the Air Force)	$125,431,263	0.8%	Rank history: not on the FY2021 list, #25 in FY2022, #9 in FY2023 and #9 in FY2024; down 6 since FY2024.
16	Rocket Lab National Security LLC Top agencies USAF (Department of the Air Force)	$123,650,352	0.8%	Rank history: not on the FY2021–FY2023 lists and #13 in FY2024; down 3 since FY2024.
17	Joint Technical Solutions, LLC Top agencies Army (Department of the Army)	$121,612,455	0.8%	Rank history: not on the FY2021–FY2023 lists and #24 in FY2024; up 7 since FY2024.
18	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$111,301,883	0.7%	Rank history: #64 in FY2021, #11 in FY2022, #22 in FY2023 and #12 in FY2024; down 6 since FY2024.
19	Systems & Technology Research LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DARPA (Defense Advanced Research Projects Agency)	$108,636,089	0.7%	Rank history: #12 in FY2021, #19 in FY2022, #15 in FY2023 and #18 in FY2024; down 1 since FY2024.
20	Consortium Management Group, Inc. Top agencies Army (Department of the Army)	$103,643,103	0.7%	Rank history: not on the FY2021–FY2023 lists and #78 in FY2024; up 58 since FY2024.
21	Wildstar LLC Top agencies USAF (Department of the Air Force)	$81,865,614	0.5%	Rank history: not on the FY2021–FY2023 lists and #87 in FY2024; up 66 since FY2024.
22	University of Dayton Top agencies USAF (Department of the Air Force)	$74,959,684	0.5%	Rank history: #56 in FY2021, not on the FY2022 list, #55 in FY2023 and #28 in FY2024; up 6 since FY2024.
23	Intuitive Research and Technology Corporation Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$67,734,878	0.4%	Rank history: not on the FY2021–FY2024 lists; up 185 since FY2024.
24	Leidos Holdings, Inc. 4 awardees, including Leidos, Inc., Kudu Dynamics LLC and Dynetics, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DARPA (Defense Advanced Research Projects Agency)	$66,130,531	0.4%	Rank history: #22 in FY2021, #14 in FY2022, #20 in FY2023 and #22 in FY2024; down 2 since FY2024.
25	Assured Information Security, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) USCYBERCOM (Department of Defense Cyber Command)	$64,099,791	0.4%	Rank history: #7 in FY2021, #12 in FY2022, #18 in FY2023 and #23 in FY2024; down 2 since FY2024.
26	Radiance Technologies, Inc. Top agencies Army (Department of the Army) DARPA (Defense Advanced Research Projects Agency) OSD (Office of the Secretary of Defense)	$60,282,041	0.4%	Rank history: not on the FY2021–FY2023 lists and #29 in FY2024; up 3 since FY2024.
27	CACI International Inc. 5 awardees, including Caci, Inc. - Federal, Caci Technologies, LLC and Caci LGS Innovations LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$57,977,569	0.4%	Rank history: #41 in FY2021, #49 in FY2022, #58 in FY2023 and #63 in FY2024; up 36 since FY2024.
28	Odyssey Systems Consulting Group, Ltd. Top agencies USAF (Department of the Air Force)	$57,401,990	0.4%	Rank history: not on the FY2021–FY2022 lists, #39 in FY2023 and #30 in FY2024; up 2 since FY2024.
29	The Pennsylvania State University Top agencies Navy (Department of the Navy) OSD (Office of the Secretary of Defense) DARPA (Defense Advanced Research Projects Agency)	$54,622,193	0.3%	Rank history: #44 in FY2021, #17 in FY2022, #29 in FY2023 and #37 in FY2024; up 8 since FY2024.
30	Chameleon Consulting Group, LLC Top agencies Navy (Department of the Navy) WHS (DOD Washington Headquarters Service) DARPA (Defense Advanced Research Projects Agency)	$53,673,830	0.3%	Rank history: not on the FY2021–FY2022 lists, #46 in FY2023 and #59 in FY2024; up 29 since FY2024.
31	Dzyne Technologies, LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$53,322,046	0.3%	Rank history: #15 in FY2021, #48 in FY2022, #86 in FY2023 and #58 in FY2024; up 27 since FY2024.
32	ICR Inc Top agencies USAF (Department of the Air Force) Army (Department of the Army) OSD (Office of the Secretary of Defense)	$49,651,439	0.3%	Rank history: not on the FY2021–FY2022 lists, #59 in FY2023 and #40 in FY2024; up 8 since FY2024.
33	General Atomics Aeronautical Systems, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) DARPA (Defense Advanced Research Projects Agency)	$49,636,311	0.3%	Rank history: not on the FY2021–FY2023 lists and #42 in FY2024; up 9 since FY2024.
34	Johns Hopkins University 2 awardees, including The Johns Hopkins University Applied Physics Laboratory LLC Top agencies USAF (Department of the Air Force) MDA (DOD Missile Defense Agency) OSD (Office of the Secretary of Defense)	$48,398,273	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
35	Chickasaw Nation Through Corvid Technologies, LLC Top agencies MDA (DOD Missile Defense Agency) OSD (Office of the Secretary of Defense) USAF (Department of the Air Force)	$46,647,567	0.3%	Rank history: not on the FY2021–FY2024 lists; up 256 since FY2024.
36	Institute for Advanced Learning and Research Top agencies Army (Department of the Army)	$44,455,598	0.3%	Rank history: not on the FY2021–FY2022 lists, #34 in FY2023 and #50 in FY2024; up 14 since FY2024.
37	Teledyne Technologies Incorporated 2 awardees, including Teledyne Brown Engineering, Inc. and Teledyne Scientific & Imaging, LLC Top agencies Army (Department of the Army) DARPA (Defense Advanced Research Projects Agency)	$44,275,306	0.3%	Rank history: not on the FY2021–FY2023 lists and #46 in FY2024; up 9 since FY2024.
38	General Electric Company 4 awardees, including GE Energy Power Conversion Naval Systems Inc. and GE Aviation Systems LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$43,936,768	0.3%	Rank history: #14 in FY2021, #21 in FY2022, #28 in FY2023 and #38 in FY2024; unchanged since FY2024.
39	The Mil Corporation 2 awardees Top agencies Navy (Department of the Navy)	$42,539,493	0.3%	Rank history: not on the FY2021–FY2023 lists and #72 in FY2024; up 33 since FY2024.
40	Iperionx Critical Minerals LLC Top agencies Army (Department of the Army)	$42,508,200	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
41	Systems Planning and Analysis, Inc. Top agencies Navy (Department of the Navy) DARPA (Defense Advanced Research Projects Agency)	$42,456,545	0.3%	Rank history: not on the FY2021–FY2023 lists and #68 in FY2024; up 27 since FY2024.
42	Collaborative Composite Solutions Corporation Top agencies Army (Department of the Army)	$41,707,752	0.3%	Rank history: #71 in FY2021, #63 in FY2022, #70 in FY2023 and not on the FY2024 list; up 90 since FY2024.
43	Southwest Research Institute Top agencies DARPA (Defense Advanced Research Projects Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$41,105,596	0.3%	Rank history: not on the FY2021–FY2022 lists, #56 in FY2023 and #99 in FY2024; up 56 since FY2024.
44	Georgia TECH Applied Research Corp Top agencies MDA (DOD Missile Defense Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$39,460,887	0.3%	Rank history: not on the FY2021–FY2023 lists and #32 in FY2024; down 12 since FY2024.
45	DCS Corporation Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$39,398,162	0.3%	Rank history: not on the FY2021–FY2022 lists, #53 in FY2023 and #80 in FY2024; up 35 since FY2024.
46	X-Bow Launch Systems Inc. Top agencies Army (Department of the Army)	$38,908,000	0.2%	Rank history: not on the FY2021–FY2022 lists, #26 in FY2023 and not on the FY2024 list; up 394 since FY2024.
47	Utah State University Space Dynamics Laboratory Top agencies MDA (DOD Missile Defense Agency)	$36,834,398	0.2%	Rank history: not on the FY2021–FY2023 lists and #56 in FY2024; up 9 since FY2024.
48	Kratos Technology & Training Solutions, Inc. Top agencies USAF (Department of the Air Force)	$35,821,391	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
49	Arctic Slope Regional Corporation 3 awardees, including Asrc Federal Advanced Research, LLC, Agile Decision Sciences, LLC and Applied Research Solutions, Inc. Top agencies Army (Department of the Army) MDA (DOD Missile Defense Agency) USAF (Department of the Air Force)	$32,988,078	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
50	Aerovironment, Inc. 3 awardees, including Bluehalo, LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) MDA (DOD Missile Defense Agency)	$32,709,639	0.2%	Rank history: not on the FY2021–FY2024 lists; up 75 since FY2024.
51	Peraton Labs Inc. Top agencies Navy (Department of the Navy) DARPA (Defense Advanced Research Projects Agency) USAF (Department of the Air Force)	$32,001,702	0.2%	Rank history: not on the FY2021–FY2023 lists and #41 in FY2024; down 10 since FY2024.
52	CNF Technologies Corporation Top agencies USAF (Department of the Air Force) WHS (DOD Washington Headquarters Service) USCYBERCOM (Department of Defense Cyber Command)	$31,851,488	0.2%	Rank history: not on the FY2021–FY2023 lists and #69 in FY2024; up 17 since FY2024.
53	Decilog, Inc. Top agencies Army (Department of the Army)	$31,819,669	0.2%	Rank history: not on the FY2021 list, #23 in FY2022, #37 in FY2023 and #52 in FY2024; down 1 since FY2024.
54	Starfish Space Inc. Top agencies USAF (Department of the Air Force)	$30,599,991	0.2%	Rank history: not on the FY2021–FY2024 lists; up 342 since FY2024.
55	Pacific Defense Strategies, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$28,872,659	0.2%	Rank history: not on the FY2021–FY2023 lists and #76 in FY2024; up 21 since FY2024.
56	Stephenson Stellar Corporation Top agencies USAF (Department of the Air Force) WHS (DOD Washington Headquarters Service) Navy (Department of the Navy)	$28,537,158	0.2%	Rank history: #28 in FY2021, not on the FY2022 list, #79 in FY2023 and not on the FY2024 list; up 62 since FY2024.
57	ManTech International Corporation Through Mantech Advanced Systems International, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$28,278,812	0.2%	Rank history: not on the FY2021–FY2023 lists and #96 in FY2024; up 39 since FY2024.
58	Fuse Integration, Inc. Top agencies Navy (Department of the Navy)	$27,973,767	0.2%	Rank history: not on the FY2021–FY2023 lists and #81 in FY2024; up 23 since FY2024.
59	Qinetiq Inc. Top agencies Army (Department of the Army)	$27,849,832	0.2%	Rank history: not on the FY2021–FY2024 lists; up 178 since FY2024.
60	Parsons Corporation 3 awardees, including Parsons Government Services Inc. and Chesapeake Technology International, Corp. Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$27,455,412	0.2%	Rank history: #32 in FY2021, #70 in FY2022, not on the FY2023 list and #93 in FY2024; up 33 since FY2024.
61	Innovative Defense Technologies LLC Top agencies Navy (Department of the Navy) MDA (DOD Missile Defense Agency)	$27,136,971	0.2%	Rank history: not on the FY2021–FY2023 lists and #43 in FY2024; down 18 since FY2024.
62	Seemann Composites, LLC Top agencies Navy (Department of the Navy)	$26,976,358	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
63	Applied Research Associates, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$26,421,028	0.2%	Rank history: #26 in FY2021, #43 in FY2022, #51 in FY2023 and #45 in FY2024; down 18 since FY2024.
64	Nooks LLC Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense)	$25,577,978	0.2%	Rank history: not on the FY2021–FY2024 lists; up 102 since FY2024.
65	Compass Systems, Inc. Top agencies Navy (Department of the Navy)	$24,269,430	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
66	Braingu LLC Top agencies USAF (Department of the Air Force)	$23,977,221	0.2%	Rank history: not on the FY2021–FY2022 lists, #89 in FY2023 and #65 in FY2024; down 1 since FY2024.
67	Kratos Sre, Inc. Top agencies Army (Department of the Army)	$22,500,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
68	Nhanced Semiconductors, Inc. Top agencies WHS (DOD Washington Headquarters Service)	$22,476,883	0.1%	Rank history: not on the FY2021–FY2022 lists, #27 in FY2023 and #74 in FY2024; up 6 since FY2024.
69	American Electronic Warfare Associates Incorporated Top agencies Navy (Department of the Navy)	$21,865,651	0.1%	Rank history: not on the FY2021–FY2024 lists; up 167 since FY2024.
70	Cesiumastro Inc. Top agencies USAF (Department of the Air Force)	$20,899,063	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
71	Fibertek, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$20,833,081	0.1%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2023 and #27 in FY2024; down 44 since FY2024.
72	Trust Automation Inc. Top agencies WHS (DOD Washington Headquarters Service)	$20,315,558	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
73	Nexutek LLC Top agencies OSD (Office of the Secretary of Defense)	$19,014,420	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
74	Sri International Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DARPA (Defense Advanced Research Projects Agency)	$18,715,533	0.1%	Rank history: #50 in FY2021, #31 in FY2022, #52 in FY2023 and #64 in FY2024; down 10 since FY2024.
75	Insitech Inc. Top agencies Army (Department of the Army)	$18,633,289	0.1%	Rank history: not on the FY2021–FY2022 lists, #92 in FY2023 and not on the FY2024 list; returned.
76	Diazyme Laboratories Inc. Through General Atomics Top agencies USAF (Department of the Air Force) MDA (DOD Missile Defense Agency)	$18,094,102	0.1%	Rank history: not on the FY2021–FY2023 lists and #19 in FY2024; down 57 since FY2024.
77	Cubic Defense Applications Inc. Through Cubic Secure Communications, LLC Top agencies USAF (Department of the Air Force)	$17,987,522	0.1%	Rank history: not on the FY2021–FY2024 lists; up 74 since FY2024.
78	Victory Solutions, LLC Top agencies MDA (DOD Missile Defense Agency)	$17,870,900	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
79	Purdue University Top agencies Army (Department of the Army)	$17,334,000	0.1%	Rank history: not on the FY2021 list, #55 in FY2022, #76 in FY2023 and #53 in FY2024; down 26 since FY2024.
80	Gryphon Technologies L.C. Top agencies Navy (Department of the Navy)	$17,327,710	0.1%	Rank history: not on the FY2021–FY2023 lists and #54 in FY2024; down 26 since FY2024.
81	Indyne Inc. Top agencies Army (Department of the Army)	$17,312,985	0.1%	Rank history: not on the FY2021–FY2024 lists; up 48 since FY2024.
82	Castelion Corporation Top agencies USAF (Department of the Air Force) MDA (DOD Missile Defense Agency)	$17,184,656	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
83	Invictus International Consulting LLC Top agencies USAF (Department of the Air Force) WHS (DOD Washington Headquarters Service)	$17,135,342	0.1%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2023 and #91 in FY2024; up 8 since FY2024.
84	Microsoft Corporation Top agencies USAF (Department of the Air Force)	$16,861,872	0.1%	Rank history: not on the FY2021–FY2023 lists and #75 in FY2024; down 9 since FY2024.
85	Apogee Research LLC Top agencies USAF (Department of the Air Force) WHS (DOD Washington Headquarters Service) Navy (Department of the Navy)	$16,561,222	0.1%	Rank history: not on the FY2021–FY2024 lists; up 31 since FY2024.
86	Battelle Memorial Institute Top agencies DARPA (Defense Advanced Research Projects Agency) Army (Department of the Army) Navy (Department of the Navy)	$16,334,542	0.1%	Rank history: #84 in FY2021 and not on the FY2022–FY2024 lists; up 41 since FY2024.
87	American Lightweight Materials Manufacturing Innovation Institute Top agencies Army (Department of the Army) Navy (Department of the Navy)	$16,275,000	0.1%	Rank history: #27 in FY2021 and not on the FY2022–FY2024 lists; up 33 since FY2024.
88	Noblis MSD LLC Top agencies Navy (Department of the Navy)	$16,246,916	0.1%	Rank history: #30 in FY2021, not on the FY2022–FY2023 lists and #98 in FY2024; up 10 since FY2024.
89	Tatitlek Federal Services LLC Top agencies Army (Department of the Army)	$16,154,501	0.1%	Rank history: not on the FY2021–FY2023 lists and #71 in FY2024; down 18 since FY2024.
90	Sossec Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$16,071,796	0.1%	Rank history: not on the FY2021–FY2024 lists; up 136 since FY2024.
91	RKF Engineering Solutions, LLC Top agencies USAF (Department of the Air Force)	$16,000,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
92	Tech7 Consulting, LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$15,817,499	0.1%	Rank history: not on the FY2021–FY2023 lists and #85 in FY2024; down 7 since FY2024.
93	Kopin Corporation Top agencies Army (Department of the Army)	$15,385,017	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
94	Research Innovations Incorporated Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$15,360,459	0.1%	Rank history: not on the FY2021 list, #99 in FY2022, #99 in FY2023 and not on the FY2024 list; up 8 since FY2024.
95	Aspen Consulting Group Inc Top agencies Army (Department of the Army) Navy (Department of the Navy)	$15,212,869	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
96	Auburn University Top agencies MDA (DOD Missile Defense Agency) Army (Department of the Army)	$14,859,955	0.1%	Rank history: not on the FY2021–FY2024 lists; up 144 since FY2024.
97	Two Six Labs, LLC Top agencies DARPA (Defense Advanced Research Projects Agency) OSD (Office of the Secretary of Defense) Navy (Department of the Navy)	$14,785,839	0.1%	Rank history: not on the FY2021–FY2024 lists; up 42 since FY2024.
98	Azimuth Corporation Top agencies USAF (Department of the Air Force)	$14,516,444	0.1%	Rank history: not on the FY2021–FY2022 lists, #77 in FY2023 and #62 in FY2024; down 36 since FY2024.
99	Honeywell International Inc. 2 awardees Top agencies USAF (Department of the Air Force)	$14,452,731	0.1%	Rank history: #43 in FY2021, #60 in FY2022 and not on the FY2023–FY2024 lists; up 335 since FY2024.
100	Shift5, Inc. Top agencies USAF (Department of the Air Force)	$14,451,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.

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100 of 697 contractors listed here. See the rest on GovTribe.

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 $15.6 billion obligated before deobligations, so they never pass 100%.
Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
Fiscal year 2025 ran Oct 1, 2024 – Sep 30, 2025. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
Rank changes compare with FY2024. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list. The step from FY2024 takes the color of the rank change beside it.
Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers

Who were the top 10 PSC AC13 contractors in FY2025?

1. Lockheed Martin Corporation ($2.97B), 2. Northrop Grumman Corporation ($1.55B), 3. Advanced Technology International ($1.36B), 4. National Security Technology Accelerator Inc. ($1.2B), 5. RTX Corporation ($869M), 6. The Boeing Company ($609M), 7. L3Harris Technologies, Inc. ($493M), 8. General Dynamics Corporation ($242M), 9. BAE Systems Space & Mission Systems Inc. ($214M), 10. Amentum Holdings, Inc. ($198M).

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