Top 99 Contractors in PSC AC15: National Defense R&D Services; Department of Defense – Military; R&D Facilities & Major Equipment, FY2023

Name: Top 99 Contractors in PSC AC15: National Defense R&D Services; Department of Defense – Military; R&D Facilities & Major Equipment, FY2023
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2022 – Sep 30, 2023 Code page on GovTribe

The top 10 won 90% of FY2023 PSC AC15 contract dollars

Contract obligations: $1,808,760,718 Net of deobligations, by contracts coded PSC AC15
Contractors: 101 Parent companies with an obligation
Largest contractor: Lockheed Martin Corporation $1.13 billion, 60.3% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 99 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Lockheed Martin Corporation 6 awardees, including Sikorsky Aircraft Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) USSOCOM (United States Special Operations Command)	$1,129,773,229	60.3%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2024 and #1 in FY2025; unchanged since FY2022.
2	Northrop Grumman Corporation 7 awardees, including Northrop Grumman Systems Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$188,744,509	10.1%	Rank history: #2 in FY2021, #4 in FY2022, #4 in FY2024 and #2 in FY2025; up 2 since FY2022.
3	RTX Corporation 7 awardees, including Rockwell Collins, Inc. and Raytheon Company Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$144,993,287	7.7%	Rank history: #5 in FY2021, #3 in FY2022, #2 in FY2024 and #3 in FY2025; unchanged since FY2022.
4	Sierra Nevada Company, LLC 2 awardees Top agencies USSOCOM (United States Special Operations Command)	$76,594,574	4.1%	Rank history: #3 in FY2021, #2 in FY2022, #6 in FY2024 and #5 in FY2025; down 2 since FY2022.
5	General Electric Company Top agencies USAF (Department of the Air Force)	$73,119,012	3.9%	Rank history: not on the FY2021 list, #61 in FY2022, #3 in FY2024 and #4 in FY2025; up 56 since FY2022.
6	Analytic Services Inc. Through Advanced Technology International Top agencies Navy (Department of the Navy)	$27,579,955	1.5%	Rank history: not on the FY2021 list, #21 in FY2022, #38 in FY2024 and not on the FY2025 list; up 15 since FY2022.
7	Kbr, Inc. Through KBR Wyle Services, LLC Top agencies Navy (Department of the Navy)	$16,994,433	0.9%	Rank history: #7 in FY2021, #5 in FY2022, #14 in FY2024 and not on the FY2025 list; down 2 since FY2022.
8	BAE Systems PLC 3 awardees, including BAE Systems Technology Solutions & Services Inc. Top agencies Navy (Department of the Navy)	$15,165,862	0.8%	Rank history: #8 in FY2021, #7 in FY2022, #9 in FY2024 and #11 in FY2025; down 1 since FY2022.
9	The Boeing Company 5 awardees Top agencies DARPA (Defense Advanced Research Projects Agency) USAF (Department of the Air Force)	$10,092,368	0.5%	Rank history: not on the FY2021 list, #6 in FY2022 and not on the FY2024–FY2025 lists; down 3 since FY2022.
10	Sossec Inc. 2 awardees Top agencies USAF (Department of the Air Force)	$10,083,508	0.5%	Rank history: #67 in FY2021, #66 in FY2022, #13 in FY2024 and #22 in FY2025; up 56 since FY2022.
11	Textron Inc. 2 awardees, including Textron Systems Corporation Top agencies Army (Department of the Army)	$8,131,617	0.4%	Rank history: #6 in FY2021, #11 in FY2022, #47 in FY2024 and #17 in FY2025; unchanged since FY2022.
12	Serco North America (Holdings) Inc Through Serco Inc. Top agencies Navy (Department of the Navy)	$7,270,218	0.4%	Rank history: #15 in FY2021, #10 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
13	HP Enterprise Services LLC Through Peraton Inc. Top agencies USAF (Department of the Air Force)	$6,881,523	0.4%	Rank history: not on the FY2021 list, #19 in FY2022, #20 in FY2024 and not on the FY2025 list; up 6 since FY2022.
14	DCS Corporation Top agencies Navy (Department of the Navy)	$5,144,949	0.3%	Rank history: #13 in FY2021, #14 in FY2022, #35 in FY2024 and not on the FY2025 list; unchanged since FY2022.
15	Jahn Corp Top agencies Navy (Department of the Navy)	$4,898,671	0.3%	Rank history: #11 in FY2021, #13 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
16	Cubic Digital Intelligence Inc. Through Cubic Secure Communications, LLC Top agencies USAF (Department of the Air Force)	$4,632,375	0.2%	Rank history: not on the FY2021 list, #18 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
17	J.f. Taylor, Inc. Top agencies Navy (Department of the Navy)	$4,459,247	0.2%	Rank history: not on the FY2021 list, #20 in FY2022, #25 in FY2024 and not on the FY2025 list; up 3 since FY2022.
18	Jacobs Engineering Group Inc. Through Amentum Technology, Inc. Top agencies Army (Department of the Army)	$4,341,072	0.2%	Rank history: not on the FY2021 list, #15 in FY2022 and not on the FY2024–FY2025 lists; down 3 since FY2022.
19	General Atomic Technologies Corporation Through General Atomics Aeronautical Systems, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$4,239,650	0.2%	Rank history: #4 in FY2021, not on the FY2022 list, #88 in FY2024 and not on the FY2025 list; returned.
20	Chesapeake Technology International, Corp. Top agencies USAF (Department of the Air Force)	$3,393,549	0.2%	Rank history: #39 in FY2021, #32 in FY2022 and not on the FY2024–FY2025 lists; up 12 since FY2022.
21	Zivko Aeronautics Inc. Top agencies Navy (Department of the Navy)	$3,296,504	0.2%	Rank history: #32 in FY2021, #35 in FY2022, #39 in FY2024 and #35 in FY2025; up 14 since FY2022.
22	Global Infotek Inc. Top agencies USAF (Department of the Air Force)	$2,916,922	0.2%	Rank history: not on the FY2021 list, #28 in FY2022, #18 in FY2024 and #49 in FY2025; up 6 since FY2022.
23	Mantech International Corporation Through Mantech Advanced Systems International, Inc. Top agencies USAF (Department of the Air Force)	$2,491,849	0.1%	Rank history: not on the FY2021 list, #83 in FY2022, #24 in FY2024 and #14 in FY2025; up 60 since FY2022.
24	Web Sensing LLC Top agencies DARPA (Defense Advanced Research Projects Agency)	$2,456,109	0.1%	Rank history: not on the FY2021 list, #29 in FY2022, #49 in FY2024 and #47 in FY2025; up 5 since FY2022.
25	HII Unmanned Systems, Inc. Top agencies Navy (Department of the Navy)	$2,356,040	0.1%	Rank history: #19 in FY2021, #12 in FY2022, #33 in FY2024 and not on the FY2025 list; down 13 since FY2022.
26	Consortium Management Group, Inc. Top agencies Navy (Department of the Navy)	$2,161,444	0.1%	Rank history: not on the FY2021–FY2022 lists, #15 in FY2024 and #26 in FY2025; new.
27	Scientific Systems Company, Inc. Top agencies DARPA (Defense Advanced Research Projects Agency)	$1,916,710	0.1%	Rank history: not on the FY2021 list, #45 in FY2022, #44 in FY2024 and not on the FY2025 list; up 18 since FY2022.
28	Taylor Defense Products, LLC Top agencies Army (Department of the Army)	$1,865,568	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
29	Galois, Inc. Top agencies DARPA (Defense Advanced Research Projects Agency)	$1,837,930	0.1%	Rank history: not on the FY2021 list, #26 in FY2022, #37 in FY2024 and #50 in FY2025; down 3 since FY2022.
30	Nemean Solutions LLC Top agencies Army (Department of the Army)	$1,728,898	0.1%	Rank history: not on the FY2021–FY2022 lists, #23 in FY2024 and #20 in FY2025; new.
31	Riverside Research Institute Top agencies DARPA (Defense Advanced Research Projects Agency)	$1,624,474	0.1%	Rank history: not on the FY2021 list, #68 in FY2022, #42 in FY2024 and #54 in FY2025; up 37 since FY2022.
32	WPI Services, LLC Top agencies USAF (Department of the Air Force)	$1,517,918	0.1%	Rank history: not on the FY2021 list, #36 in FY2022 and not on the FY2024–FY2025 lists; up 4 since FY2022.
33	Narf Industries LLC Top agencies DARPA (Defense Advanced Research Projects Agency)	$1,505,671	0.1%	Rank history: not on the FY2021 list, #63 in FY2022 and not on the FY2024–FY2025 lists; up 30 since FY2022.
34	Laser Thermal Analysis, Inc. Top agencies DARPA (Defense Advanced Research Projects Agency)	$1,399,887	0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #53 in FY2025; new.
35	Red Balloon Security, Inc. Top agencies DARPA (Defense Advanced Research Projects Agency)	$1,376,537	0.1%	Rank history: not on the FY2021 list, #37 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
36	Unmanned Experts Inc. Top agencies USAF (Department of the Air Force)	$1,249,915	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
37	Oceanit Laboratories Inc. Top agencies DARPA (Defense Advanced Research Projects Agency)	$1,249,542	0.1%	Rank history: #44 in FY2021, #84 in FY2022, #57 in FY2024 and not on the FY2025 list; up 47 since FY2022.
38	Cromulence LLC Top agencies DARPA (Defense Advanced Research Projects Agency)	$1,237,537	0.1%	Rank history: not on the FY2021 list, #71 in FY2022, #50 in FY2024 and #32 in FY2025; up 33 since FY2022.
39	Georgia TECH Research Corp Top agencies DARPA (Defense Advanced Research Projects Agency)	$1,120,649	0.1%	Rank history: not on the FY2021 list, #38 in FY2022 and not on the FY2024–FY2025 lists; down 1 since FY2022.
40	National Security Technology Accelerator Inc. Top agencies USAF (Department of the Air Force)	$1,086,088	0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #37 in FY2025; new.
41	Tunoptix, Inc. Top agencies DARPA (Defense Advanced Research Projects Agency)	$999,950	0.1%	Rank history: not on the FY2021–FY2022 lists, #68 in FY2024 and not on the FY2025 list; new.
42	Mathematical Systems & Solutions, Inc. Top agencies DARPA (Defense Advanced Research Projects Agency)	$999,851	0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #58 in FY2025; new.
43	Dragoon Technology LLC Top agencies DARPA (Defense Advanced Research Projects Agency)	$999,325	0.1%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2024 and not on the FY2025 list; up 60 since FY2022.
44	Leidos Holdings, Inc. Through Leidos, Inc. Top agencies DARPA (Defense Advanced Research Projects Agency)	$979,845	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
45	Nanohmics Inc. Top agencies DARPA (Defense Advanced Research Projects Agency)	$979,498	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
46	Brandes Associates, Inc. Top agencies Navy (Department of the Navy)	$919,590	<0.1%	Rank history: #52 in FY2021, #8 in FY2022, #26 in FY2024 and #62 in FY2025; down 38 since FY2022.
47	Voreas Laboratories, LLC Top agencies DARPA (Defense Advanced Research Projects Agency)	$844,038	<0.1%	Rank history: not on the FY2021–FY2022 lists, #48 in FY2024 and not on the FY2025 list; new.
48	Science Applications International Corporation Top agencies USAF (Department of the Air Force)	$782,856	<0.1%	Rank history: not on the FY2021 list, #52 in FY2022, #65 in FY2024 and #61 in FY2025; up 4 since FY2022.
49	The Commonwealth of Massachusetts Through Northeastern University Top agencies DARPA (Defense Advanced Research Projects Agency)	$768,787	<0.1%	Rank history: not on the FY2021 list, #50 in FY2022 and not on the FY2024–FY2025 lists; up 1 since FY2022.
50	Bowler Pons Solutions Consultants, LLC Top agencies Navy (Department of the Navy)	$758,742	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
51	Tulip Tree Technology LLC Top agencies DARPA (Defense Advanced Research Projects Agency)	$756,894	<0.1%	Rank history: not on the FY2021–FY2022 lists, #58 in FY2024 and not on the FY2025 list; new.
52	Interdisciplinary Consulting Corp Top agencies DARPA (Defense Advanced Research Projects Agency)	$749,474	<0.1%	Rank history: not on the FY2021–FY2022 lists, #56 in FY2024 and not on the FY2025 list; new.
53	Glas Ocean Electric USA LLC Top agencies DARPA (Defense Advanced Research Projects Agency)	$749,349	<0.1%	Rank history: not on the FY2021 list, #55 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
54	CCJ Medical Devices LLC Top agencies DARPA (Defense Advanced Research Projects Agency)	$740,109	<0.1%	Rank history: not on the FY2021 list, #73 in FY2022 and not on the FY2024–FY2025 lists; up 19 since FY2022.
55	Inferlink Corp Top agencies DARPA (Defense Advanced Research Projects Agency)	$657,864	<0.1%	Rank history: not on the FY2021 list, #93 in FY2022, #67 in FY2024 and #55 in FY2025; up 38 since FY2022.
56	Five Directions, Inc. Top agencies DARPA (Defense Advanced Research Projects Agency)	$599,933	<0.1%	Rank history: not on the FY2021–FY2022 lists, #62 in FY2024 and #52 in FY2025; new.
57	Punch Cyber Corp Top agencies DARPA (Defense Advanced Research Projects Agency)	$598,863	<0.1%	Rank history: not on the FY2021–FY2022 lists, #63 in FY2024 and #30 in FY2025; new.
58	A2 Labs, LLC Top agencies DARPA (Defense Advanced Research Projects Agency)	$592,788	<0.1%	Rank history: not on the FY2021–FY2022 lists, #75 in FY2024 and not on the FY2025 list; new.
59	Jopana Technologies, Inc. Top agencies Navy (Department of the Navy)	$556,000	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
60	Moire' Inc. Top agencies DARPA (Defense Advanced Research Projects Agency)	$548,145	<0.1%	Rank history: not on the FY2021 list, #92 in FY2022 and not on the FY2024–FY2025 lists; up 32 since FY2022.
61	Aether Argus Inc. Top agencies DARPA (Defense Advanced Research Projects Agency)	$543,803	<0.1%	Rank history: not on the FY2021–FY2022 lists, #74 in FY2024 and not on the FY2025 list; new.
62	Grammatech Inc Top agencies DARPA (Defense Advanced Research Projects Agency)	$530,419	<0.1%	Rank history: not on the FY2021–FY2022 lists, #73 in FY2024 and #59 in FY2025; new.
63	Code 13 Security Top agencies DARPA (Defense Advanced Research Projects Agency)	$505,244	<0.1%	Rank history: not on the FY2021–FY2022 lists, #71 in FY2024 and #60 in FY2025; new.
64	Infleqtion Quantum, LLC Top agencies DARPA (Defense Advanced Research Projects Agency)	$500,000	<0.1%	Rank history: #46 in FY2021, #64 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
65	Pqsecure Technologies LLC Top agencies DARPA (Defense Advanced Research Projects Agency)	$500,000	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
66	Geegah LLC Top agencies DARPA (Defense Advanced Research Projects Agency)	$500,000	<0.1%	Rank history: #23 in FY2021, #42 in FY2022, not on the FY2024 list and #57 in FY2025; down 24 since FY2022.
67	N.p. Photonics, Inc. Top agencies DARPA (Defense Advanced Research Projects Agency)	$500,000	<0.1%	Rank history: #49 in FY2021, #75 in FY2022 and not on the FY2024–FY2025 lists; up 8 since FY2022.
68	Vector Atomic Inc Top agencies DARPA (Defense Advanced Research Projects Agency)	$499,997	<0.1%	Rank history: #48 in FY2021, #22 in FY2022, #46 in FY2024 and #27 in FY2025; down 46 since FY2022.
69	Perceptronics Solutions, Inc. Top agencies DARPA (Defense Advanced Research Projects Agency)	$499,992	<0.1%	Rank history: not on the FY2021 list, #67 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
70	Clostra Inc Top agencies DARPA (Defense Advanced Research Projects Agency)	$499,979	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
71	Sunfish Inc. Top agencies DARPA (Defense Advanced Research Projects Agency)	$499,974	<0.1%	Rank history: not on the FY2021 list, #78 in FY2022, #89 in FY2024 and not on the FY2025 list; up 7 since FY2022.
72	Smart Information Flow Technologies LLC Top agencies DARPA (Defense Advanced Research Projects Agency)	$491,266	<0.1%	Rank history: not on the FY2021 list, #79 in FY2022, not on the FY2024 list and #46 in FY2025; up 7 since FY2022.
73	Sri International Top agencies DARPA (Defense Advanced Research Projects Agency)	$489,865	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
74	Radiant Technologies, Inc. Top agencies DARPA (Defense Advanced Research Projects Agency)	$486,442	<0.1%	Rank history: #30 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
75	Metamagnetics Inc Top agencies DARPA (Defense Advanced Research Projects Agency)	$485,954	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
76	Serco Inc Top agencies Navy (Department of the Navy)	$482,747	<0.1%	Rank history: not on the FY2021–FY2022 lists, #19 in FY2024 and #16 in FY2025; new.
77	Makai Ocean Engineering Inc. Top agencies DARPA (Defense Advanced Research Projects Agency)	$453,266	<0.1%	Rank history: #58 in FY2021, #72 in FY2022, #70 in FY2024 and not on the FY2025 list; down 5 since FY2022.
78	Southwest Research Institute Top agencies Navy (Department of the Navy) Army (Department of the Army)	$439,047	<0.1%	Rank history: #71 in FY2021, #80 in FY2022, #34 in FY2024 and #48 in FY2025; up 2 since FY2022.
79	Tai-Yang Research Company Top agencies DARPA (Defense Advanced Research Projects Agency)	$428,571	<0.1%	Rank history: not on the FY2021 list, #86 in FY2022 and not on the FY2024–FY2025 lists; up 7 since FY2022.
80	Empirical Systems Aerospace Inc. Top agencies NASA (National Aeronautics and Space Administration)	$426,719	<0.1%	Rank history: not on the FY2021–FY2022 lists, #53 in FY2024 and not on the FY2025 list; new.
81	The Mitre Corporation Top agencies DHS (Department of Homeland Security)	$305,092	<0.1%	Rank history: not on the FY2021–FY2022 lists, #96 in FY2024 and not on the FY2025 list; new.
82	Resilient Solutions 21, LLC Top agencies USAF (Department of the Air Force)	$300,000	<0.1%	Rank history: not on the FY2021 list, #85 in FY2022, not on the FY2024 list and #74 in FY2025; up 3 since FY2022.
83	Bluequartz Software, LLC Top agencies USAF (Department of the Air Force)	$255,000	<0.1%	Rank history: not on the FY2021 list, #47 in FY2022, #64 in FY2024 and #64 in FY2025; down 36 since FY2022.
84	Keystone Maintenance Services Corp Top agencies Army (Department of the Army)	$204,100	<0.1%	Rank history: #65 in FY2021, #99 in FY2022, #91 in FY2024 and not on the FY2025 list; up 15 since FY2022.
85	Axalume Inc. Top agencies DARPA (Defense Advanced Research Projects Agency)	$192,764	<0.1%	Rank history: not on the FY2021 list, #54 in FY2022, #77 in FY2024 and not on the FY2025 list; down 31 since FY2022.
86	Avian, LLC Top agencies Navy (Department of the Navy)	$154,480	<0.1%	Rank history: #20 in FY2021, #51 in FY2022 and not on the FY2024–FY2025 lists; down 35 since FY2022.
87	Nokomis, Inc. Top agencies DMEA (Defense Microelectronics Activity)	$123,930	<0.1%	Rank history: #64 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
88	Lift Aircraft Inc Top agencies USAF (Department of the Air Force)	$99,301	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
89	Noblis, Inc. Through Noblis MSD LLC Top agencies Navy (Department of the Navy)	$98,877	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
90	The Survice Engineering Company LLC Top agencies Navy (Department of the Navy)	$47,625	<0.1%	Rank history: #33 in FY2021, #89 in FY2022, #85 in FY2024 and not on the FY2025 list; down 1 since FY2022.
91	The Open Group L L C Through The Open Group, L.l.c Top agencies Navy (Department of the Navy)	$45,000	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
92	Cornet Technology, Inc. Top agencies Navy (Department of the Navy)	$43,118	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
93	Vector CSP LLC Top agencies Navy (Department of the Navy)	$30,000	<0.1%	Rank history: not on the FY2021–FY2022 lists, #22 in FY2024 and #19 in FY2025; new.
94	Berkshire Hathaway Inc. Through Flightsafety International Inc. Top agencies Navy (Department of the Navy)	$24,840	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 15 since FY2022.
95	CACI International Inc. 2 awardees, including Caci Technologies, LLC Top agencies Army (Department of the Army)	$20,000	<0.1%	Rank history: #43 in FY2021, not on the FY2022 list, #8 in FY2024 and #6 in FY2025; returned.
96	American Veteran Solutions Inc Top agencies Navy (Department of the Navy)	$13,869	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
97	Brinkmann Instruments, Inc. Top agencies Army (Department of the Army)	$12,465	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
98	Matter Labs Inc. Top agencies USAF (Department of the Air Force)	$9,393	<0.1%	Rank history: not on the FY2021 list, #40 in FY2022 and not on the FY2024–FY2025 lists; down 58 since FY2022.
99	Nikken Corporation Through MC Machinery Systems, Inc. Top agencies USAF (Department of the Air Force)	$4,675	<0.1%	Rank history: not on the FY2021–FY2022 lists, #95 in FY2024 and not on the FY2025 list; up 11 since FY2022.

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99 of 101 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 $1.87 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 2023 ran Oct 1, 2022 – Sep 30, 2023. 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 FY2022. "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 FY2022 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 AC15 contractors in FY2023?

1. Lockheed Martin Corporation ($1.13B), 2. Northrop Grumman Corporation ($189M), 3. RTX Corporation ($145M), 4. Sierra Nevada Company, LLC ($76.6M), 5. General Electric Company ($73.1M), 6. Analytic Services Inc. ($27.6M), 7. Kbr, Inc. ($17M), 8. BAE Systems PLC ($15.2M), 9. The Boeing Company ($10.1M), 10. Sossec Inc. ($10.1M).

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