Top 100 Contractors in PSC AC13: National Defense R&D Services; Department of Defense – Military; Experimental Development, FY2024

Name: Top 100 Contractors in PSC AC13: National Defense R&D Services; Department of Defense – Military; Experimental Development, FY2024
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2023 – Sep 30, 2024 Code page on GovTribe

The top 10 won 65% of FY2024 PSC AC13 contract dollars

Contract obligations: $15,485,820,000 Net of deobligations, by contracts coded PSC AC13
Contractors: 853 Parent companies with an obligation
Largest contractor: Lockheed Martin Corporation $3.41 billion, 21.7% 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 24 awardees Top agencies MDA (DOD Missile Defense Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$3,412,501,171	21.7%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023 and #1 in FY2025; unchanged since FY2023.
2	Northrop Grumman Corporation 19 awardees, including Northrop Grumman Systems Corporation Top agencies MDA (DOD Missile Defense Agency) USAF (Department of the Air Force) Army (Department of the Army)	$1,895,367,573	12.0%	Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023 and #2 in FY2025; unchanged since FY2023.
3	RTX Corporation 25 awardees, including Raytheon Company, Rockwell Collins, Inc. and RTX BBN Technologies, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$1,122,126,831	7.1%	Rank history: #3 in FY2021, #3 in FY2022, #3 in FY2023 and #5 in FY2025; unchanged since FY2023.
4	Advanced Technology International Top agencies Navy (Department of the Navy) Army (Department of the Army) OSD (Office of the Secretary of Defense)	$1,079,634,765	6.9%	Rank history: #42 in FY2021, not on the FY2022–FY2023 lists and #3 in FY2025; returned.
5	National Security Technology Accelerator Inc. Top agencies OSD (Office of the Secretary of Defense) USAF (Department of the Air Force) WHS (DOD Washington Headquarters Service)	$665,058,756	4.2%	Rank history: #31 in FY2021, #15 in FY2022, #6 in FY2023 and #4 in FY2025; up 1 since FY2023.
6	L3Harris Technologies, Inc. 9 awardees, including L3 Technologies, Inc., L3Harris Technologies Integrated Systems L.P. and Fisica Applied Technologies, Inc. Top agencies USAF (Department of the Air Force) WHS (DOD Washington Headquarters Service) Army (Department of the Army)	$559,122,233	3.6%	Rank history: #17 in FY2021, #5 in FY2022, #7 in FY2023 and #7 in FY2025; up 1 since FY2023.
7	The Boeing Company 16 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)	$524,092,783	3.3%	Rank history: #4 in FY2021, #6 in FY2022, #8 in FY2023 and #6 in FY2025; up 1 since FY2023.
8	Defense Energy Center of Excellence Top agencies USAF (Department of the Air Force)	$449,597,987	2.9%	Rank history: #5 in FY2021, #7 in FY2022, #4 in FY2023 and not on the FY2025 list; down 4 since FY2023.
9	York Space Systems LLC Top agencies USAF (Department of the Air Force)	$302,158,283	1.9%	Rank history: not on the FY2021 list, #25 in FY2022, #9 in FY2023 and #15 in FY2025; unchanged since FY2023.
10	Sierra Nevada Company, LLC 2 awardees, including Sierra Space Corp Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$263,133,465	1.7%	Rank history: not on the FY2021–FY2023 lists and #11 in FY2025; new.
11	Analytic Services Inc. Through Advanced Technology International Top agencies Navy (Department of the Navy) OSD (Office of the Secretary of Defense) Army (Department of the Army)	$218,058,389	1.4%	Rank history: #6 in FY2021, #4 in FY2022, #5 in FY2023 and not on the FY2025 list; down 6 since FY2023.
12	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$142,520,193	0.9%	Rank history: #64 in FY2021, #11 in FY2022, #22 in FY2023 and #18 in FY2025; up 10 since FY2023.
13	Rocket Lab National Security LLC Top agencies USAF (Department of the Air Force)	$138,658,464	0.9%	Rank history: not on the FY2021–FY2023 lists and #16 in FY2025; new.
14	BAE Systems 11 awardees, including BAE Systems Information & Electronic Systems Integration Inc., BAE Systems Technology Solutions & Services 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)	$136,655,737	0.9%	Rank history: #9 in FY2021, #13 in FY2022, #11 in FY2023 and #12 in FY2025; down 3 since FY2023.
15	Science Applications International Corporation 2 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$127,740,189	0.8%	Rank history: not on the FY2021 list, #16 in FY2022, #13 in FY2023 and #13 in FY2025; down 2 since FY2023.
16	Lynas USA LLC 2 awardees Top agencies Army (Department of the Army)	$123,513,488	0.8%	Rank history: not on the FY2021–FY2022 lists, #14 in FY2023 and not on the FY2025 list; down 2 since FY2023.
17	Space Exploration Technologies Corp. Top agencies DARPA (Defense Advanced Research Projects Agency) USAF (Department of the Air Force)	$109,228,580	0.7%	Rank history: #37 in FY2021, #18 in FY2022, #19 in FY2023 and #14 in FY2025; up 2 since FY2023.
18	Systems & Technology Research LLC Top agencies DARPA (Defense Advanced Research Projects Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$97,832,323	0.6%	Rank history: #12 in FY2021, #19 in FY2022, #15 in FY2023 and #19 in FY2025; down 3 since FY2023.
19	Diazyme Laboratories Inc. Through General Atomics Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$83,350,443	0.5%	Rank history: not on the FY2021–FY2023 lists and #76 in FY2025; new.
20	Tyvak Nano-Satellite Systems, Inc. Top agencies USAF (Department of the Air Force)	$79,259,132	0.5%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
21	Micross Advanced Interconnect Technology LLC Top agencies Army (Department of the Army)	$74,277,768	0.5%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
22	Leidos Holdings, Inc. 3 awardees, including Leidos, Inc. and Dynetics, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DARPA (Defense Advanced Research Projects Agency)	$72,407,861	0.5%	Rank history: #22 in FY2021, #14 in FY2022, #20 in FY2023 and #24 in FY2025; down 2 since FY2023.
23	Assured Information Security, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) WHS (DOD Washington Headquarters Service)	$71,732,037	0.5%	Rank history: #7 in FY2021, #12 in FY2022, #18 in FY2023 and #25 in FY2025; down 5 since FY2023.
24	Joint Technical Solutions, LLC Top agencies Army (Department of the Army)	$64,301,300	0.4%	Rank history: not on the FY2021–FY2023 lists and #17 in FY2025; new.
25	Ball Corp 2 awardees, including BAE Systems Space & Mission Systems Inc. and Ball Aerospace & Technologies Corp. Top agencies USAF (Department of the Air Force)	$64,272,281	0.4%	Rank history: #39 in FY2021, #65 in FY2022, #25 in FY2023 and not on the FY2025 list; unchanged since FY2023.
26	County of Osceola Top agencies Army (Department of the Army)	$63,921,071	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
27	Fibertek, Inc. Top agencies Army (Department of the Army) WHS (DOD Washington Headquarters Service) USAF (Department of the Air Force)	$62,861,810	0.4%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2023 and #71 in FY2025; up 9 since FY2023.
28	University of Dayton Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$56,520,505	0.4%	Rank history: #56 in FY2021, not on the FY2022 list, #55 in FY2023 and #22 in FY2025; up 27 since FY2023.
29	Radiance Technologies, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) DARPA (Defense Advanced Research Projects Agency)	$55,548,087	0.4%	Rank history: not on the FY2021–FY2023 lists and #26 in FY2025; new.
30	Odyssey Systems Consulting Group Ltd. 2 awardees Top agencies USAF (Department of the Air Force)	$52,740,647	0.3%	Rank history: not on the FY2021–FY2022 lists, #39 in FY2023 and #28 in FY2025; up 9 since FY2023.
31	Amentum Technology, Inc. Top agencies MDA (DOD Missile Defense Agency)	$52,498,384	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
32	Georgia TECH Applied Research Corp Top agencies MDA (DOD Missile Defense Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$47,636,843	0.3%	Rank history: not on the FY2021–FY2023 lists and #44 in FY2025; new.
33	Raytheon Company Top agencies MDA (DOD Missile Defense Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$47,268,904	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
34	North Point Defense Inc. Top agencies USAF (Department of the Air Force) WHS (DOD Washington Headquarters Service) NSA (Department of Defense National Security Agency)	$47,245,061	0.3%	Rank history: #21 in FY2021, #33 in FY2022, #93 in FY2023 and not on the FY2025 list; up 59 since FY2023.
35	Northrop Grumman Systems Corporation Top agencies USAF (Department of the Air Force)	$45,344,254	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
36	Jacobs Engineering Group Inc. Through Amentum Technology, Inc. Top agencies MDA (DOD Missile Defense Agency)	$44,169,445	0.3%	Rank history: #8 in FY2021, #9 in FY2022, #12 in FY2023 and not on the FY2025 list; down 24 since FY2023.
37	The Pennsylvania State University Top agencies Navy (Department of the Navy) DARPA (Defense Advanced Research Projects Agency) DTRA (Defense Threat Reduction Agency)	$43,581,622	0.3%	Rank history: #44 in FY2021, #17 in FY2022, #29 in FY2023 and #29 in FY2025; down 8 since FY2023.
38	General Electric Company 3 awardees, including GE Aviation Systems LLC and GE Energy Power Conversion Naval Systems Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$43,238,255	0.3%	Rank history: #14 in FY2021, #21 in FY2022, #28 in FY2023 and #38 in FY2025; down 10 since FY2023.
39	General Atomic Technologies Corporation 2 awardees, including General Atomics Aeronautical Systems, Inc. Top agencies DARPA (Defense Advanced Research Projects Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$43,118,034	0.3%	Rank history: #13 in FY2021, #8 in FY2022, #10 in FY2023 and not on the FY2025 list; down 29 since FY2023.
40	ICR Inc Top agencies USAF (Department of the Air Force)	$42,102,243	0.3%	Rank history: not on the FY2021–FY2022 lists, #59 in FY2023 and #32 in FY2025; up 19 since FY2023.
41	Peraton Labs Inc. Top agencies DARPA (Defense Advanced Research Projects Agency) Navy (Department of the Navy)	$42,021,968	0.3%	Rank history: not on the FY2021–FY2023 lists and #51 in FY2025; new.
42	General Atomics Aeronautical Systems, Inc. Top agencies DARPA (Defense Advanced Research Projects Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$36,234,814	0.2%	Rank history: not on the FY2021–FY2023 lists and #33 in FY2025; new.
43	Innovative Defense Technologies LLC Top agencies Navy (Department of the Navy) MDA (DOD Missile Defense Agency)	$34,353,258	0.2%	Rank history: not on the FY2021–FY2023 lists and #61 in FY2025; new.
44	Astrion Group, LLC Top agencies Army (Department of the Army)	$33,053,508	0.2%	Rank history: #10 in FY2021, #10 in FY2022, #16 in FY2023 and not on the FY2025 list; down 28 since FY2023.
45	Applied Research Associates, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$32,602,303	0.2%	Rank history: #26 in FY2021, #43 in FY2022, #51 in FY2023 and #63 in FY2025; up 6 since FY2023.
46	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)	$31,679,354	0.2%	Rank history: not on the FY2021–FY2023 lists and #37 in FY2025; new.
47	General Dynamics Corporation 4 awardees, including Applied Physical Sciences Corp, Dynport Vaccine Company LLC and General Dynamics Mission Systems, Inc. Top agencies DARPA (Defense Advanced Research Projects Agency) Army (Department of the Army) Navy (Department of the Navy)	$31,002,684	0.2%	Rank history: not on the FY2021 list, #82 in FY2022, #43 in FY2023 and #8 in FY2025; down 4 since FY2023.
48	True Anomaly, Inc. Top agencies USAF (Department of the Air Force)	$30,000,000	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
49	Corvid Technologies LLC Top agencies MDA (DOD Missile Defense Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$29,070,855	0.2%	Rank history: not on the FY2021–FY2022 lists, #42 in FY2023 and not on the FY2025 list; down 7 since FY2023.
50	Institute for Advanced Learning and Research Top agencies Army (Department of the Army)	$28,973,614	0.2%	Rank history: not on the FY2021–FY2022 lists, #34 in FY2023 and #36 in FY2025; down 16 since FY2023.
51	Phase Sensitive Innovations Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$28,080,340	0.2%	Rank history: #38 in FY2021, not on the FY2022 list, #68 in FY2023 and not on the FY2025 list; up 17 since FY2023.
52	Decilog, Inc. Top agencies Army (Department of the Army)	$27,981,255	0.2%	Rank history: not on the FY2021 list, #23 in FY2022, #37 in FY2023 and #53 in FY2025; down 15 since FY2023.
53	Purdue University Top agencies Army (Department of the Army) Navy (Department of the Navy)	$27,680,788	0.2%	Rank history: not on the FY2021 list, #55 in FY2022, #76 in FY2023 and #79 in FY2025; up 23 since FY2023.
54	Gryphon Technologies L.C. Top agencies Navy (Department of the Navy)	$26,605,504	0.2%	Rank history: not on the FY2021–FY2023 lists and #80 in FY2025; new.
55	Seacorp, LLC Top agencies Navy (Department of the Navy)	$25,660,225	0.2%	Rank history: #81 in FY2021, not on the FY2022 list, #71 in FY2023 and not on the FY2025 list; up 16 since FY2023.
56	Utah State University Space Dynamics Laboratory Top agencies MDA (DOD Missile Defense Agency)	$25,271,826	0.2%	Rank history: not on the FY2021–FY2023 lists and #47 in FY2025; new.
57	Global Air Logistics and Training, Inc. Top agencies Navy (Department of the Navy)	$25,100,000	0.2%	Rank history: not on the FY2021–FY2022 lists, #33 in FY2023 and not on the FY2025 list; down 24 since FY2023.
58	Dzyne Technologies, LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$25,066,982	0.2%	Rank history: #15 in FY2021, #48 in FY2022, #86 in FY2023 and #31 in FY2025; up 28 since FY2023.
59	Chameleon Consulting Group, LLC Top agencies Navy (Department of the Navy) DARPA (Defense Advanced Research Projects Agency) Army (Department of the Army)	$24,571,710	0.2%	Rank history: not on the FY2021–FY2022 lists, #46 in FY2023 and #30 in FY2025; down 13 since FY2023.
60	Davidson Technologies Inc. Top agencies USAF (Department of the Air Force)	$24,318,478	0.2%	Rank history: not on the FY2021 list, #69 in FY2022, #23 in FY2023 and not on the FY2025 list; down 37 since FY2023.
61	RD Solutions LLC Top agencies Army (Department of the Army)	$23,813,351	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 97 since FY2023.
62	Azimuth Corporation Top agencies USAF (Department of the Air Force)	$23,531,363	0.1%	Rank history: not on the FY2021–FY2022 lists, #77 in FY2023 and #98 in FY2025; up 15 since FY2023.
63	CACI International Inc. 3 awardees, including Caci, Inc. - Federal and Caci LGS Innovations LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DARPA (Defense Advanced Research Projects Agency)	$23,223,316	0.1%	Rank history: #41 in FY2021, #49 in FY2022, #58 in FY2023 and #27 in FY2025; down 5 since FY2023.
64	Sri International Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DARPA (Defense Advanced Research Projects Agency)	$22,624,116	0.1%	Rank history: #50 in FY2021, #31 in FY2022, #52 in FY2023 and #74 in FY2025; down 12 since FY2023.
65	Braingu LLC Top agencies USAF (Department of the Air Force)	$22,403,688	0.1%	Rank history: not on the FY2021–FY2022 lists, #89 in FY2023 and #66 in FY2025; up 24 since FY2023.
66	II-VI Incorporated Through Attalon, Inc. Top agencies Navy (Department of the Navy)	$21,484,880	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
67	The Johns Hopkins University Applied Physics Laboratory LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) MDA (DOD Missile Defense Agency)	$20,274,987	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
68	Systems Planning and Analysis, Inc. Top agencies Navy (Department of the Navy) DARPA (Defense Advanced Research Projects Agency)	$20,067,500	0.1%	Rank history: not on the FY2021–FY2023 lists and #41 in FY2025; up 107 since FY2023.
69	CNF Technologies Corporation Top agencies USAF (Department of the Air Force) USCYBERCOM (Department of Defense Cyber Command) DOD (Department of Defense)	$19,606,529	0.1%	Rank history: not on the FY2021–FY2023 lists and #52 in FY2025; new.
70	On Demand Pharmaceuticals Inc. Top agencies HHS (Department of Health and Human Services)	$19,000,000	0.1%	Rank history: not on the FY2021 list, #34 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
71	Tatitlek Federal Services LLC Top agencies Army (Department of the Army)	$18,871,000	0.1%	Rank history: not on the FY2021–FY2023 lists and #89 in FY2025; new.
72	The Mil Corporation Top agencies Navy (Department of the Navy)	$18,610,373	0.1%	Rank history: not on the FY2021–FY2023 lists and #39 in FY2025; new.
73	KGS LLC Top agencies USAF (Department of the Air Force)	$18,420,124	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 369 since FY2023.
74	Nhanced Semiconductors, Inc. Top agencies WHS (DOD Washington Headquarters Service)	$17,508,000	0.1%	Rank history: not on the FY2021–FY2022 lists, #27 in FY2023 and #68 in FY2025; down 47 since FY2023.
75	Microsoft Corporation Top agencies USAF (Department of the Air Force)	$17,500,000	0.1%	Rank history: not on the FY2021–FY2023 lists and #84 in FY2025; new.
76	Pacific Defense Strategies, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$17,430,716	0.1%	Rank history: not on the FY2021–FY2023 lists and #55 in FY2025; up 89 since FY2023.
77	Bluehalo, LLC Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense) DARPA (Defense Advanced Research Projects Agency)	$17,041,816	0.1%	Rank history: not on the FY2021 list, #37 in FY2022, #41 in FY2023 and not on the FY2025 list; down 36 since FY2023.
78	Consortium Management Group, Inc. Top agencies Army (Department of the Army)	$16,905,371	0.1%	Rank history: not on the FY2021–FY2023 lists and #20 in FY2025; up 75 since FY2023.
79	Global Infotek Inc. Top agencies USAF (Department of the Air Force) WHS (DOD Washington Headquarters Service)	$16,890,142	0.1%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2023 and not on the FY2025 list; up 15 since FY2023.
80	DCS Corporation 2 awardees Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$16,686,032	0.1%	Rank history: not on the FY2021–FY2022 lists, #53 in FY2023 and #45 in FY2025; down 27 since FY2023.
81	Fuse Integration, Inc. Top agencies Navy (Department of the Navy)	$16,624,958	0.1%	Rank history: not on the FY2021–FY2023 lists and #58 in FY2025; new.
82	Wichita State University Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$16,500,661	0.1%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2023 and not on the FY2025 list; down 15 since FY2023.
83	North Star Scientific Corp Top agencies Navy (Department of the Navy)	$16,260,480	0.1%	Rank history: not on the FY2021 list, #29 in FY2022, #63 in FY2023 and not on the FY2025 list; down 20 since FY2023.
84	Anduril Industries Inc. Top agencies OSD (Office of the Secretary of Defense) WHS (DOD Washington Headquarters Service) DARPA (Defense Advanced Research Projects Agency)	$16,008,129	0.1%	Rank history: not on the FY2021 list, #51 in FY2022, not on the FY2023 list and not on the FY2025 list; up 157 since FY2023.
85	Tech7 Consulting, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$15,724,107	0.1%	Rank history: not on the FY2021–FY2023 lists and #92 in FY2025; up 92 since FY2023.
86	Wyzkyds Consulting LLC Top agencies MDA (DOD Missile Defense Agency)	$15,720,638	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 59 since FY2023.
87	Wildstar LLC Top agencies USAF (Department of the Air Force)	$15,411,398	0.1%	Rank history: not on the FY2021–FY2023 lists and #21 in FY2025; up 274 since FY2023.
88	Utah State University Through Utah State University Space Dynamics Laboratory Top agencies MDA (DOD Missile Defense Agency)	$15,198,349	0.1%	Rank history: not on the FY2021 list, #24 in FY2022, #35 in FY2023 and not on the FY2025 list; down 53 since FY2023.
89	Valt Enterprizes Inc. Top agencies MDA (DOD Missile Defense Agency)	$14,808,269	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
90	Calspan, LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$14,546,496	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
91	Invictus International Consulting LLC Top agencies USAF (Department of the Air Force) WHS (DOD Washington Headquarters Service) Navy (Department of the Navy)	$14,546,123	0.1%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2023 and #83 in FY2025; unchanged since FY2023.
92	Scioteq LLC Through North Wind Test LLC Top agencies Army (Department of the Army)	$14,067,735	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
93	Parsons Corporation 2 awardees, including Parsons Government Services Inc. and Parsons Technical Services Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) DARPA (Defense Advanced Research Projects Agency)	$14,017,689	0.1%	Rank history: #32 in FY2021, #70 in FY2022, not on the FY2023 list and #60 in FY2025; up 31 since FY2023.
94	Hyliion Inc. Top agencies Navy (Department of the Navy)	$13,913,886	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
95	Peak Nanosystems, LLC Through Peak Nano Optics LLC Top agencies Army (Department of the Army)	$13,900,000	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
96	ManTech International Corporation Through Mantech Advanced Systems International, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) OSD (Office of the Secretary of Defense)	$13,868,265	0.1%	Rank history: not on the FY2021–FY2023 lists and #57 in FY2025; new.
97	Viasat Inc. 2 awardees, including Trellisware Technologies Inc. Top agencies USAF (Department of the Air Force) USSOCOM (United States Special Operations Command) Army (Department of the Army)	$13,793,047	0.1%	Rank history: #83 in FY2021, not on the FY2022–FY2023 lists and not on the FY2025 list; up 96 since FY2023.
98	Noblis MSD LLC 2 awardees, including Noblis, Inc. Top agencies Navy (Department of the Navy)	$13,742,964	0.1%	Rank history: #30 in FY2021, not on the FY2022–FY2023 lists and #88 in FY2025; up 51 since FY2023.
99	Southwest Research Institute Top agencies DARPA (Defense Advanced Research Projects Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$13,733,737	0.1%	Rank history: not on the FY2021–FY2022 lists, #56 in FY2023 and #43 in FY2025; down 43 since FY2023.
100	Anavation, LLC Top agencies Army (Department of the Army)	$13,236,650	0.1%	Rank history: not on the FY2021–FY2022 lists, #90 in FY2023 and not on the FY2025 list; down 10 since FY2023.

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100 of 853 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 $15.7 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.

Quick answers

Who were the top 10 PSC AC13 contractors in FY2024?

1. Lockheed Martin Corporation ($3.41B), 2. Northrop Grumman Corporation ($1.9B), 3. RTX Corporation ($1.12B), 4. Advanced Technology International ($1.08B), 5. National Security Technology Accelerator Inc. ($665M), 6. L3Harris Technologies, Inc. ($559M), 7. The Boeing Company ($524M), 8. Defense Energy Center of Excellence ($450M), 9. York Space Systems LLC ($302M), 10. Sierra Nevada Company, LLC ($263M).

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