Top 100 Contractors in PSC AD: Defense (Other) R&D, FY2023

Name: Top 100 Contractors in PSC AD: Defense (Other) R&D, FY2023
Creator: GovTribe

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

The top 10 won 48% of FY2023 PSC AD contract dollars

Contract obligations: $2,881,790,576 Net of deobligations, by contracts coded PSC AD or a code under it
Contractors: 353 Parent companies with an obligation
Largest contractor: Science Applications International Corporation $320 million, 10.4% 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	Science Applications International Corporation 3 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$319,512,752	10.4%	Rank history: #2 in FY2021, #2 in FY2022, #1 in FY2024 and #1 in FY2025; up 1 since FY2022.
2	The National Advanced Mobility Consortium, Inc. Top agencies Army (Department of the Army)	$257,976,779	8.4%	Rank history: #14 in FY2021, #11 in FY2022, #7 in FY2024 and #6 in FY2025; up 9 since FY2022.
3	Lockheed Martin Corporation 22 awardees, including Lockheed Martin Services, LLC Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense) DARPA (Defense Advanced Research Projects Agency)	$200,125,164	6.5%	Rank history: #1 in FY2021, #1 in FY2022, #4 in FY2024 and #2 in FY2025; down 2 since FY2022.
4	Analytic Services Inc. Through Advanced Technology International Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$121,564,208	4.0%	Rank history: #8 in FY2021, #8 in FY2022, #22 in FY2024 and not on the FY2025 list; up 4 since FY2022.
5	Leidos Holdings, Inc. 7 awardees, including Leidos, Inc., Dynetics, Inc. and Dynetics Technical Solutions Inc. Top agencies DOT (Department of Transportation) DTRA (Defense Threat Reduction Agency) DARPA (Defense Advanced Research Projects Agency)	$119,832,204	3.9%	Rank history: #5 in FY2021, #4 in FY2022, #6 in FY2024 and #3 in FY2025; down 1 since FY2022.
6	RTX Corporation 23 awardees, including Raytheon Company, RTX BBN Technologies, Inc. and Blue Canyon Technologies LLC Top agencies DARPA (Defense Advanced Research Projects Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$114,640,113	3.7%	Rank history: #4 in FY2021, #6 in FY2022, #13 in FY2024 and #10 in FY2025; unchanged since FY2022.
7	The Johns Hopkins University Through The Johns Hopkins University Applied Physics Laboratory LLC Top agencies Navy (Department of the Navy) OSD (Office of the Secretary of Defense) Army (Department of the Army)	$98,506,859	3.2%	Rank history: #3 in FY2021, #5 in FY2022, #66 in FY2024 and not on the FY2025 list; down 2 since FY2022.
8	DMD Group Inc. Through Intrepid LLC Top agencies Army (Department of the Army)	$87,184,630	2.8%	Rank history: #15 in FY2021, #10 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
9	Radiance Technologies Inc. Top agencies Army (Department of the Army) WHS (DOD Washington Headquarters Service) USAF (Department of the Air Force)	$83,312,682	2.7%	Rank history: #9 in FY2021, #9 in FY2022, #9 in FY2024 and #12 in FY2025; unchanged since FY2022.
10	Applied Research Associates, Inc. Top agencies DTRA (Defense Threat Reduction Agency) Navy (Department of the Navy)	$75,022,138	2.4%	Rank history: #11 in FY2021, #12 in FY2022, #8 in FY2024 and #5 in FY2025; up 2 since FY2022.
11	Seqirus USA Inc. Through Seqirus Inc. Top agencies HHS (Department of Health and Human Services)	$71,763,000	2.3%	Rank history: #17 in FY2021, #16 in FY2022 and not on the FY2024–FY2025 lists; up 5 since FY2022.
12	The Aerospace Corporation Top agencies NASA (National Aeronautics and Space Administration)	$69,486,905	2.3%	Rank history: #20 in FY2021, #19 in FY2022, #10 in FY2024 and #8 in FY2025; up 7 since FY2022.
13	Booz Allen Hamilton Holding Corporation 3 awardees, including Booz Allen Hamilton Inc. Top agencies Army (Department of the Army) DOT (Department of Transportation) Navy (Department of the Navy)	$57,396,022	1.9%	Rank history: #16 in FY2021, #18 in FY2022, #28 in FY2024 and #48 in FY2025; up 5 since FY2022.
14	General Dynamics Corporation 4 awardees, including Applied Physical Sciences Corp and Electric Boat Corporation Top agencies DARPA (Defense Advanced Research Projects Agency) Navy (Department of the Navy)	$56,899,944	1.9%	Rank history: #19 in FY2021, #14 in FY2022, #17 in FY2024 and #20 in FY2025; unchanged since FY2022.
15	The Pennsylvania State University Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DTRA (Defense Threat Reduction Agency)	$56,570,681	1.8%	Rank history: #12 in FY2021, #17 in FY2022, #84 in FY2024 and #57 in FY2025; up 2 since FY2022.
16	National Security Technology Accelerator Inc. Top agencies OSD (Office of the Secretary of Defense) WHS (DOD Washington Headquarters Service) Navy (Department of the Navy)	$52,040,955	1.7%	Rank history: #6 in FY2021, #7 in FY2022, #16 in FY2024 and #19 in FY2025; down 9 since FY2022.
17	Northrop Grumman Corporation 20 awardees, including Alliant Techsystems Operations LLC and Northrop Grumman Systems Corporation Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$48,292,025	1.6%	Rank history: #10 in FY2021, #23 in FY2022, #5 in FY2024 and #17 in FY2025; up 6 since FY2022.
18	CACI International Inc. 6 awardees, including Caci Technologies, LLC, LGS Innovations LLC and Caci Photonics, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) DARPA (Defense Advanced Research Projects Agency)	$35,764,037	1.2%	Rank history: #28 in FY2021, #21 in FY2022, #63 in FY2024 and #35 in FY2025; up 3 since FY2022.
19	George Mason University Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$29,355,371	1.0%	Rank history: #42 in FY2021, #34 in FY2022 and not on the FY2024–FY2025 lists; up 15 since FY2022.
20	Jacobs Engineering Group Inc. 4 awardees, including Amentum Technology, Inc. and The Keyw Corporation Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$27,056,254	0.9%	Rank history: #41 in FY2021, #48 in FY2022, #62 in FY2024 and not on the FY2025 list; up 28 since FY2022.
21	L3Harris Technologies, Inc. 19 awardees, including Fisica Applied Technologies, Inc., L3Harris Technologies Integrated Systems L.P. and L-3 Chesapeake Sciences Corporation Top agencies Army (Department of the Army) DTRA (Defense Threat Reduction Agency) Navy (Department of the Navy)	$25,348,219	0.8%	Rank history: #13 in FY2021, #15 in FY2022, #25 in FY2024 and #16 in FY2025; down 6 since FY2022.
22	Two Six Labs Holdings, Inc. Through Two Six Labs, LLC Top agencies DARPA (Defense Advanced Research Projects Agency) WHS (DOD Washington Headquarters Service) USAF (Department of the Air Force)	$25,025,395	0.8%	Rank history: #30 in FY2021, #20 in FY2022, #98 in FY2024 and not on the FY2025 list; down 2 since FY2022.
23	General Electric Company 5 awardees, including GE Energy Power Conversion Naval Systems Inc. and GE Aviation Systems LLC Top agencies DARPA (Defense Advanced Research Projects Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$24,157,081	0.8%	Rank history: #61 in FY2021, #49 in FY2022, not on the FY2024 list and #63 in FY2025; up 26 since FY2022.
24	University of Dayton Top agencies USAF (Department of the Air Force) Army (Department of the Army) OSD (Office of the Secretary of Defense)	$23,849,560	0.8%	Rank history: #34 in FY2021, #40 in FY2022, #21 in FY2024 and #18 in FY2025; up 16 since FY2022.
25	Sri International Top agencies DARPA (Defense Advanced Research Projects Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$22,996,319	0.7%	Rank history: #21 in FY2021, #31 in FY2022, #33 in FY2024 and #21 in FY2025; up 6 since FY2022.
26	Southwest Research Institute Top agencies DTRA (Defense Threat Reduction Agency)	$22,746,156	0.7%	Rank history: #50 in FY2021, #44 in FY2022, #32 in FY2024 and #74 in FY2025; up 18 since FY2022.
27	Kbr, Inc. 5 awardees, including Dependable Global Solutions, LLC and KBR Wyle Services, LLC Top agencies DOE (Department of Energy) DTRA (Defense Threat Reduction Agency) DARPA (Defense Advanced Research Projects Agency)	$21,532,736	0.7%	Rank history: #33 in FY2021, #61 in FY2022, #67 in FY2024 and not on the FY2025 list; up 34 since FY2022.
28	Systems & Technology Research LLC Top agencies DARPA (Defense Advanced Research Projects Agency) Navy (Department of the Navy) Army (Department of the Army)	$21,312,630	0.7%	Rank history: #25 in FY2021, #29 in FY2022, #23 in FY2024 and #29 in FY2025; up 1 since FY2022.
29	Rite-Solutions, Inc. Top agencies Navy (Department of the Navy)	$20,775,755	0.7%	Rank history: #69 in FY2021, #47 in FY2022, #38 in FY2024 and not on the FY2025 list; up 18 since FY2022.
30	New Mexico Institute of Mining and Technology Top agencies USAF (Department of the Air Force)	$20,450,000	0.7%	Rank history: not on the FY2021 list, #99 in FY2022 and not on the FY2024–FY2025 lists; up 69 since FY2022.
31	DCS Corporation Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$20,253,134	0.7%	Rank history: #47 in FY2021, #53 in FY2022, #34 in FY2024 and #99 in FY2025; up 22 since FY2022.
32	Qinetiq Group PLC 2 awardees, including Qinetiq Inc. Top agencies Army (Department of the Army)	$19,392,520	0.6%	Rank history: #22 in FY2021, #13 in FY2022, #49 in FY2024 and not on the FY2025 list; down 19 since FY2022.
33	Assured Information Security, Inc. Top agencies USAF (Department of the Air Force) DARPA (Defense Advanced Research Projects Agency)	$16,914,395	0.6%	Rank history: #31 in FY2021, #60 in FY2022, #29 in FY2024 and #26 in FY2025; up 27 since FY2022.
34	Apogee Research LLC Top agencies USAF (Department of the Air Force) DARPA (Defense Advanced Research Projects Agency) OSD (Office of the Secretary of Defense)	$16,898,155	0.6%	Rank history: #71 in FY2021, #52 in FY2022, #30 in FY2024 and #51 in FY2025; up 18 since FY2022.
35	The Veritas Capital Fund VII L P 2 awardees, including Peraton Labs Inc. Top agencies DARPA (Defense Advanced Research Projects Agency) Army (Department of the Army)	$15,386,719	0.5%	Rank history: not on the FY2021 list, #37 in FY2022, #83 in FY2024 and not on the FY2025 list; up 2 since FY2022.
36	Aaski Technology Inc. Through Mag DS Corp Top agencies Army (Department of the Army)	$14,216,293	0.5%	Rank history: not on the FY2021 list, #95 in FY2022 and not on the FY2024–FY2025 lists; up 59 since FY2022.
37	Black River Systems Company, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$13,643,207	0.4%	Rank history: #39 in FY2021, #25 in FY2022, #93 in FY2024 and #50 in FY2025; down 12 since FY2022.
38	University of Texas System 3 awardees, including University of Texas At Austin Top agencies Navy (Department of the Navy) OSD (Office of the Secretary of Defense) Army (Department of the Army)	$13,559,681	0.4%	Rank history: #32 in FY2021, #45 in FY2022 and not on the FY2024–FY2025 lists; up 7 since FY2022.
39	Galois, Inc. Top agencies DARPA (Defense Advanced Research Projects Agency)	$13,087,390	0.4%	Rank history: #58 in FY2021, #63 in FY2022, not on the FY2024 list and #68 in FY2025; up 24 since FY2022.
40	Scientific Research Corporation Top agencies Navy (Department of the Navy)	$12,866,448	0.4%	Rank history: #68 in FY2021, #62 in FY2022, #31 in FY2024 and #22 in FY2025; up 22 since FY2022.
41	BAE Systems PLC 8 awardees, including BAE Systems Information & Electronic Systems Integration Inc. Top agencies Navy (Department of the Navy) DARPA (Defense Advanced Research Projects Agency) OSD (Office of the Secretary of Defense)	$12,714,699	0.4%	Rank history: #45 in FY2021, #27 in FY2022, #74 in FY2024 and #14 in FY2025; down 14 since FY2022.
42	Tactical Engineering & Analysis, Inc. Top agencies Navy (Department of the Navy)	$12,125,566	0.4%	Rank history: #62 in FY2021, #67 in FY2022, #24 in FY2024 and #36 in FY2025; up 25 since FY2022.
43	Sossec, Inc. Top agencies USAF (Department of the Air Force)	$11,686,083	0.4%	Rank history: #27 in FY2021, #30 in FY2022 and not on the FY2024–FY2025 lists; down 13 since FY2022.
44	Integration Innovation Inc. Top agencies OSD (Office of the Secretary of Defense)	$11,540,857	0.4%	Rank history: #23 in FY2021, #22 in FY2022, #76 in FY2024 and not on the FY2025 list; down 22 since FY2022.
45	Battelle Memorial Institute Top agencies Army (Department of the Army) DARPA (Defense Advanced Research Projects Agency) DHS (Department of Homeland Security)	$11,305,362	0.4%	Rank history: #59 in FY2021, #42 in FY2022, #43 in FY2024 and #43 in FY2025; down 3 since FY2022.
46	Metron Incorporated Top agencies Navy (Department of the Navy) WHS (DOD Washington Headquarters Service)	$11,024,872	0.4%	Rank history: #54 in FY2021, #50 in FY2022, #91 in FY2024 and #89 in FY2025; up 4 since FY2022.
47	MRIGLOBAL Top agencies DARPA (Defense Advanced Research Projects Agency)	$10,465,993	0.3%	Rank history: not on the FY2021–FY2022 lists, #56 in FY2024 and not on the FY2025 list; new.
48	Arete Associates Top agencies Navy (Department of the Navy)	$10,214,895	0.3%	Rank history: not on the FY2021 list, #46 in FY2022, #82 in FY2024 and #54 in FY2025; down 2 since FY2022.
49	Mercury Computer Systems Inc. 2 awardees, including Mercury Systems Inc. and Physical Optics Corporation Top agencies DARPA (Defense Advanced Research Projects Agency) USAF (Department of the Air Force)	$10,158,524	0.3%	Rank history: #70 in FY2021, #83 in FY2022 and not on the FY2024–FY2025 lists; up 34 since FY2022.
50	Global Infotek Inc. Top agencies USAF (Department of the Air Force) WHS (DOD Washington Headquarters Service) Navy (Department of the Navy)	$10,155,700	0.3%	Rank history: #44 in FY2021, #28 in FY2022 and not on the FY2024–FY2025 lists; down 22 since FY2022.
51	CNF Technologies Corp Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$9,695,607	0.3%	Rank history: not on the FY2021–FY2022 lists, #42 in FY2024 and not on the FY2025 list; new.
52	Par Technology Corporation Through Par Government Systems Corporation Top agencies USAF (Department of the Air Force) DARPA (Defense Advanced Research Projects Agency) WHS (DOD Washington Headquarters Service)	$9,490,675	0.3%	Rank history: #63 in FY2021, #57 in FY2022, #26 in FY2024 and #37 in FY2025; up 5 since FY2022.
53	HP Enterprise Services LLC 3 awardees, including Peraton Inc. and Dhpc Technologies, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) WHS (DOD Washington Headquarters Service)	$9,293,686	0.3%	Rank history: #76 in FY2021, #39 in FY2022 and not on the FY2024–FY2025 lists; down 14 since FY2022.
54	Nalas Engineering Services Inc Top agencies Army (Department of the Army)	$9,260,383	0.3%	Rank history: not on the FY2021–FY2022 lists, #51 in FY2024 and #41 in FY2025; new.
55	Cerebras Systems Inc. Top agencies DARPA (Defense Advanced Research Projects Agency)	$8,498,373	0.3%	Rank history: #64 in FY2021, not on the FY2022 list, #46 in FY2024 and not on the FY2025 list; up 211 since FY2022.
56	Nanoracks LLC Top agencies OSD (Office of the Secretary of Defense)	$8,191,961	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 50 since FY2022.
57	The Charles Stark Draper Laboratory, Inc. Top agencies DTRA (Defense Threat Reduction Agency) DARPA (Defense Advanced Research Projects Agency) USAF (Department of the Air Force)	$7,731,619	0.3%	Rank history: #65 in FY2021, #68 in FY2022, #77 in FY2024 and not on the FY2025 list; up 11 since FY2022.
58	GBL Systems Corporation Top agencies Navy (Department of the Navy)	$7,617,797	0.2%	Rank history: not on the FY2021 list, #92 in FY2022 and not on the FY2024–FY2025 lists; up 34 since FY2022.
59	American Systems Corporation Top agencies Navy (Department of the Navy) OSD (Office of the Secretary of Defense)	$7,306,946	0.2%	Rank history: not on the FY2021 list, #80 in FY2022, #48 in FY2024 and #38 in FY2025; up 21 since FY2022.
60	Next Tier Concepts Inc Top agencies USAF (Department of the Air Force)	$7,145,309	0.2%	Rank history: not on the FY2021–FY2022 lists, #78 in FY2024 and #30 in FY2025; new.
61	University of Southern California Top agencies DARPA (Defense Advanced Research Projects Agency)	$6,499,182	0.2%	Rank history: #100 in FY2021, #75 in FY2022, #59 in FY2024 and not on the FY2025 list; up 14 since FY2022.
62	UIC Government Services LLC Through Bowhead Cybersecurity Solutions & Services, LLC Top agencies Army (Department of the Army)	$6,484,030	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 48 since FY2022.
63	Thomson Reuters Special Services LLC Top agencies DARPA (Defense Advanced Research Projects Agency)	$6,455,643	0.2%	Rank history: not on the FY2021 list, #65 in FY2022, #45 in FY2024 and not on the FY2025 list; up 2 since FY2022.
64	Gryphon Technologies, Inc. 2 awardees, including Schafer Government Services, LLC Top agencies Navy (Department of the Navy)	$6,335,133	0.2%	Rank history: #57 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 161 since FY2022.
65	Modernatx Inc. Top agencies DARPA (Defense Advanced Research Projects Agency)	$6,233,191	0.2%	Rank history: not on the FY2021 list, #59 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
66	Mclaughlin Research Corporation Top agencies Navy (Department of the Navy)	$6,144,341	0.2%	Rank history: not on the FY2021 list, #88 in FY2022, #36 in FY2024 and not on the FY2025 list; up 22 since FY2022.
67	The Boeing Company 6 awardees, including HRL Laboratories, LLC and Aurora Flight Sciences Corporation Top agencies DARPA (Defense Advanced Research Projects Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$5,921,717	0.2%	Rank history: #29 in FY2021, #32 in FY2022, #2 in FY2024 and #42 in FY2025; down 35 since FY2022.
68	Dlh, LLC Top agencies Navy (Department of the Navy)	$5,818,983	0.2%	Rank history: not on the FY2021 list, #94 in FY2022 and not on the FY2024–FY2025 lists; up 26 since FY2022.
69	University of Maine System Top agencies Army (Department of the Army)	$5,400,000	0.2%	Rank history: not on the FY2021 list, #78 in FY2022 and not on the FY2024–FY2025 lists; up 9 since FY2022.
70	PAE Government Services Inc. 2 awardees, including Centra Technology, Inc. Top agencies Navy (Department of the Navy)	$5,262,598	0.2%	Rank history: #83 in FY2021, #77 in FY2022 and not on the FY2024–FY2025 lists; up 7 since FY2022.
71	Georgia TECH Research Corp 2 awardees, including Georgia TECH Applied Research Corp Top agencies DARPA (Defense Advanced Research Projects Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$5,072,414	0.2%	Rank history: #43 in FY2021, not on the FY2022 list, #88 in FY2024 and not on the FY2025 list; up 32 since FY2022.
72	Tecolote Research, Inc. Top agencies USAF (Department of the Air Force)	$5,024,266	0.2%	Rank history: not on the FY2021–FY2022 lists, #47 in FY2024 and #49 in FY2025; up 73 since FY2022.
73	S2 Corp Top agencies DARPA (Defense Advanced Research Projects Agency)	$5,000,000	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
74	The Research Foundation for the State University of New York Top agencies DARPA (Defense Advanced Research Projects Agency)	$4,894,346	0.2%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #25 in FY2025; up 30 since FY2022.
75	Fortem Technologies Inc Top agencies DTRA (Defense Threat Reduction Agency)	$4,850,000	0.2%	Rank history: not on the FY2021–FY2022 lists, #57 in FY2024 and #28 in FY2025; up 216 since FY2022.
76	Kudu Dynamics LLC Top agencies DARPA (Defense Advanced Research Projects Agency) Navy (Department of the Navy)	$4,776,283	0.2%	Rank history: #51 in FY2021, #38 in FY2022, #20 in FY2024 and not on the FY2025 list; down 38 since FY2022.
77	Stealth Software Technologies, Inc. Top agencies DARPA (Defense Advanced Research Projects Agency)	$4,744,504	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 63 since FY2022.
78	The Leland Stanford Junior University Top agencies DARPA (Defense Advanced Research Projects Agency)	$4,717,182	0.2%	Rank history: #90 in FY2021, #71 in FY2022 and not on the FY2024–FY2025 lists; down 7 since FY2022.
79	Dependable Global Solutions, LLC Top agencies DOE (Department of Energy)	$4,485,000	0.1%	Rank history: not on the FY2021 list, #64 in FY2022 and not on the FY2024–FY2025 lists; down 15 since FY2022.
80	International Business Machines Corporation 2 awardees Top agencies DARPA (Defense Advanced Research Projects Agency)	$4,323,255	0.1%	Rank history: #48 in FY2021, #35 in FY2022 and not on the FY2024–FY2025 lists; down 45 since FY2022.
81	Premier Technology, Inc. Top agencies DTRA (Defense Threat Reduction Agency)	$4,137,976	0.1%	Rank history: not on the FY2021–FY2022 lists, #71 in FY2024 and not on the FY2025 list; up 57 since FY2022.
82	Woods Hole Oceanographic Institution Top agencies Navy (Department of the Navy)	$4,103,342	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 82 since FY2022.
83	Massachusetts Institute of Technology Top agencies DARPA (Defense Advanced Research Projects Agency)	$4,007,914	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 34 since FY2022.
84	Cubrc, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$4,005,041	0.1%	Rank history: not on the FY2021 list, #93 in FY2022 and not on the FY2024–FY2025 lists; up 9 since FY2022.
85	Katmai Health Services LLC Top agencies Army (Department of the Army)	$3,805,653	0.1%	Rank history: not on the FY2021–FY2022 lists, #95 in FY2024 and not on the FY2025 list; up 68 since FY2022.
86	Mile Two LLC Top agencies USAF (Department of the Air Force)	$3,740,630	0.1%	Rank history: #72 in FY2021, #85 in FY2022, #87 in FY2024 and not on the FY2025 list; down 1 since FY2022.
87	National Strategic Research Institute Top agencies DTRA (Defense Threat Reduction Agency) Army (Department of the Army) USAF (Department of the Air Force)	$3,563,469	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 15 since FY2022.
88	Accelint Intelligent Systems, LLC Top agencies Army (Department of the Army)	$3,480,025	0.1%	Rank history: not on the FY2021 list, #79 in FY2022, #18 in FY2024 and #13 in FY2025; down 9 since FY2022.
89	Teledyne Technologies Incorporated 2 awardees, including Teledyne Scientific & Imaging, LLC and Teledyne Flir Defense, Inc. Top agencies DARPA (Defense Advanced Research Projects Agency) Navy (Department of the Navy)	$3,473,258	0.1%	Rank history: not on the FY2021 list, #76 in FY2022 and not on the FY2024–FY2025 lists; down 13 since FY2022.
90	Serco Inc 2 awardees, including Serco-Ips Corporation Top agencies Navy (Department of the Navy) Army (Department of the Army)	$3,343,562	0.1%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2024 and not on the FY2025 list; new.
91	On Assignment, Inc. 4 awardees, including ECS Federal, LLC and Inforeliance LLC Top agencies Army (Department of the Army) OSD (Office of the Secretary of Defense) HHS (Department of Health and Human Services)	$3,302,996	0.1%	Rank history: #18 in FY2021, #43 in FY2022 and not on the FY2024–FY2025 lists; down 48 since FY2022.
92	Safe Inc. Top agencies Navy (Department of the Navy)	$3,300,000	0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #93 in FY2025; new.
93	Torch Technologies Inc. Top agencies USAF (Department of the Air Force)	$3,250,505	0.1%	Rank history: not on the FY2021–FY2022 lists, #50 in FY2024 and #31 in FY2025; up 33 since FY2022.
94	Physical Sciences Inc. 2 awardees, including Q-Peak, Incorporated Top agencies DARPA (Defense Advanced Research Projects Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$3,070,002	0.1%	Rank history: #98 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 19 since FY2022.
95	Pacific Marine & Supply Company Ltd Through Pacmar Technologies LLC Top agencies Navy (Department of the Navy)	$3,054,096	0.1%	Rank history: #93 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 301 since FY2022.
96	Herrick Technology Laboratories Inc. Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense)	$3,000,000	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 12 since FY2022.
97	Kitware Inc. Top agencies DARPA (Defense Advanced Research Projects Agency) WHS (DOD Washington Headquarters Service)	$2,970,000	0.1%	Rank history: not on the FY2021–FY2022 lists, #60 in FY2024 and #71 in FY2025; new.
98	Carnegie-Mellon University Top agencies Navy (Department of the Navy) DARPA (Defense Advanced Research Projects Agency)	$2,945,847	0.1%	Rank history: not on the FY2021 list, #96 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
99	Energetics Technology Center, Inc. Top agencies Navy (Department of the Navy)	$2,896,058	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 16 since FY2022.
100	Aarno Labs LLC Top agencies DARPA (Defense Advanced Research Projects Agency)	$2,775,010	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 92 since FY2022.

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100 of 353 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC AD

Code	Net obligations	Largest contractor
AD93 R&D – Defense Other: Other (Advanced Development)	$830,276,924	Lockheed Martin Corporation
AD92 R&D – Defense Other: Other (Applied Research/Exploratory Development)	$482,300,965	Analytic Services Inc.
AD91 R&D – Defense Other: Other (Basic Research)	$57,374,861	Battelle Memorial Institute

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 $3.07 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 AD contractors in FY2023?

1. Science Applications International Corporation ($320M), 2. The National Advanced Mobility Consortium, Inc. ($258M), 3. Lockheed Martin Corporation ($200M), 4. Analytic Services Inc. ($122M), 5. Leidos Holdings, Inc. ($120M), 6. RTX Corporation ($115M), 7. The Johns Hopkins University ($98.5M), 8. DMD Group Inc. ($87.2M), 9. Radiance Technologies Inc. ($83.3M), 10. Applied Research Associates, Inc. ($75M).

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