Top 100 Contractors in PSC K: Modification of Equipment, FY2023

Name: Top 100 Contractors in PSC K: Modification of Equipment, FY2023
Creator: GovTribe

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

The top 10 won 76% of FY2023 PSC K contract dollars

Contract obligations: $3,029,211,790 Net of deobligations, by contracts coded PSC K or a code under it
Contractors: 408 Parent companies with an obligation
Largest contractor: Lockheed Martin Corporation $1.22 billion, 37.1% 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 13 awardees, including Sikorsky Aircraft Corporation Top agencies Navy (Department of the Navy) MDA (DOD Missile Defense Agency)	$1,220,918,465	37.1%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2024 and #1 in FY2025; unchanged since FY2022.
2	The Boeing Company 5 awardees, including Argon ST, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$240,467,399	7.3%	Rank history: #4 in FY2021, #5 in FY2022, #3 in FY2024 and #3 in FY2025; up 3 since FY2022.
3	RTX Corporation 15 awardees, including Raytheon Company and Data Link Solutions LLC Top agencies DOT (Department of Transportation) Navy (Department of the Navy) MDA (DOD Missile Defense Agency)	$213,346,320	6.5%	Rank history: #3 in FY2021, #3 in FY2022, #6 in FY2024 and #5 in FY2025; unchanged since FY2022.
4	Leidos Holdings, Inc. 4 awardees, including Leidos, Inc. Top agencies DOT (Department of Transportation) Navy (Department of the Navy)	$206,472,270	6.3%	Rank history: #7 in FY2021, #4 in FY2022, #5 in FY2024 and #6 in FY2025; unchanged since FY2022.
5	General Dynamics Corporation 8 awardees, including General Dynamics Information Technology, Inc., General Dynamics Land Systems Inc. and Electric Boat Corporation Top agencies Navy (Department of the Navy) Army (Department of the Army) DCMA (Defense Contract Management Agency)	$181,884,356	5.5%	Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2024 and #2 in FY2025; down 3 since FY2022.
6	Northrop Grumman Corporation 12 awardees, including Northrop Grumman Systems Corporation Top agencies Navy (Department of the Navy) MDA (DOD Missile Defense Agency) Army (Department of the Army)	$169,766,504	5.2%	Rank history: #5 in FY2021, #6 in FY2022, #4 in FY2024 and #4 in FY2025; unchanged since FY2022.
7	BAE Systems PLC 3 awardees, including BAE Systems Technology Solutions & Services Inc. and BAE Systems Land and Armaments L.P. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$128,078,871	3.9%	Rank history: #6 in FY2021, #7 in FY2022, #7 in FY2024 and #7 in FY2025; unchanged since FY2022.
8	Alsalam Aerospace Industries Company Top agencies USAF (Department of the Air Force)	$74,915,576	2.3%	Rank history: not on the FY2021 list, #11 in FY2022 and not on the FY2024–FY2025 lists; up 3 since FY2022.
9	DCS Corporation Top agencies Navy (Department of the Navy)	$43,363,077	1.3%	Rank history: #9 in FY2021, #10 in FY2022, #32 in FY2024 and not on the FY2025 list; up 1 since FY2022.
10	General Dynamics Information Technology, Inc. Top agencies Navy (Department of the Navy)	$33,044,613	1.0%	Rank history: #18 in FY2021, #9 in FY2022 and not on the FY2024–FY2025 lists; down 1 since FY2022.
11	Tetra Tech, Inc. Through Advanced Management Technology, Inc. Top agencies DOT (Department of Transportation)	$32,352,695	1.0%	Rank history: #21 in FY2021, #12 in FY2022, #16 in FY2024 and #17 in FY2025; up 1 since FY2022.
12	L3Harris Technologies, Inc. 10 awardees, including L3Harris Maritime Services Inc., L3Harris Technologies Integrated Systems L.P. and L-3 Communications Maripro, Inc. Top agencies Navy (Department of the Navy) MDA (DOD Missile Defense Agency) USSOCOM (United States Special Operations Command)	$29,963,105	0.9%	Rank history: #10 in FY2021, #8 in FY2022, #12 in FY2024 and #8 in FY2025; down 4 since FY2022.
13	Huntington Ingalls Industries, Inc. 3 awardees, including Huntington Ingalls Incorporated and HII Technical Solutions Corporation Top agencies Navy (Department of the Navy)	$26,409,305	0.8%	Rank history: #8 in FY2021, #23 in FY2022, #10 in FY2024 and #14 in FY2025; up 10 since FY2022.
14	Idemia Identity & Security USA LLC Top agencies DHS (Department of Homeland Security)	$23,535,447	0.7%	Rank history: #56 in FY2021, #62 in FY2022 and not on the FY2024–FY2025 lists; up 48 since FY2022.
15	Science Applications International Corporation Top agencies Navy (Department of the Navy)	$20,798,824	0.6%	Rank history: #19 in FY2021, #18 in FY2022, #18 in FY2024 and #25 in FY2025; up 3 since FY2022.
16	Chugach Technical Solutions LLC Top agencies Navy (Department of the Navy)	$20,179,507	0.6%	Rank history: #86 in FY2021, #26 in FY2022, #17 in FY2024 and #24 in FY2025; up 10 since FY2022.
17	Vertex Aerospace LLC 2 awardees, including V2X Aerospace LLC Top agencies Navy (Department of the Navy)	$18,887,189	0.6%	Rank history: #20 in FY2021, #16 in FY2022, #66 in FY2024 and not on the FY2025 list; down 1 since FY2022.
18	General Dynamics Mission Systems, Inc. Top agencies Navy (Department of the Navy)	$18,764,427	0.6%	Rank history: #16 in FY2021, #14 in FY2022, #15 in FY2024 and not on the FY2025 list; down 4 since FY2022.
19	Kbr, Inc. 3 awardees, including KBR Wyle Services, LLC Top agencies Navy (Department of the Navy)	$16,922,852	0.5%	Rank history: #15 in FY2021, #17 in FY2022, #26 in FY2024 and not on the FY2025 list; down 2 since FY2022.
20	American Electronic Warfare Associates, Incorporated Top agencies Navy (Department of the Navy)	$14,876,292	0.5%	Rank history: #24 in FY2021, #19 in FY2022, #24 in FY2024 and not on the FY2025 list; down 1 since FY2022.
21	Saab Inc. Top agencies Navy (Department of the Navy)	$14,629,146	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
22	Saab AB Through Saab, Inc. Top agencies Navy (Department of the Navy)	$13,964,379	0.4%	Rank history: #41 in FY2021, #21 in FY2022 and not on the FY2024–FY2025 lists; down 1 since FY2022.
23	Systems Application & Technologies Inc. Top agencies Navy (Department of the Navy)	$13,824,900	0.4%	Rank history: #23 in FY2021, #20 in FY2022, #20 in FY2024 and #28 in FY2025; down 3 since FY2022.
24	Advanced Technology Systems Inc. Through Salient Crgt, Inc. Top agencies Navy (Department of the Navy)	$12,472,678	0.4%	Rank history: not on the FY2021–FY2022 lists, #29 in FY2024 and not on the FY2025 list; new.
25	Sierra Nevada Company, LLC Top agencies Navy (Department of the Navy) WHS (DOD Washington Headquarters Service)	$12,287,894	0.4%	Rank history: not on the FY2021 list, #45 in FY2022 and not on the FY2024–FY2025 lists; up 20 since FY2022.
26	New Directions Technologies, Inc. Top agencies Navy (Department of the Navy)	$11,588,243	0.4%	Rank history: #26 in FY2021, #22 in FY2022, #33 in FY2024 and #34 in FY2025; down 4 since FY2022.
27	General Atomics Aerotec Systems GMBH Top agencies Navy (Department of the Navy)	$11,434,550	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
28	Precision Air Inc Top agencies DOS (Department of State)	$9,828,010	0.3%	Rank history: not on the FY2021–FY2022 lists, #23 in FY2024 and #39 in FY2025; new.
29	Iaccess Technologies Inc. Top agencies USAF (Department of the Air Force)	$9,022,860	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
30	Advanced Systems & Software Engineering Technologies LLC Top agencies Navy (Department of the Navy)	$8,935,117	0.3%	Rank history: not on the FY2021–FY2022 lists, #9 in FY2024 and #9 in FY2025; new.
31	Imeco Inc. Top agencies Navy (Department of the Navy)	$7,853,770	0.2%	Rank history: #68 in FY2021, #53 in FY2022 and not on the FY2024–FY2025 lists; up 22 since FY2022.
32	CGI Technologies and Solutions Inc. Through CGI Federal Inc. Top agencies PBGC (Pension Benefit Guaranty Corporation)	$7,194,902	0.2%	Rank history: #31 in FY2021, #25 in FY2022 and not on the FY2024–FY2025 lists; down 7 since FY2022.
33	Metson Marine Inc. Through Metson Marine Services, Inc. Top agencies Navy (Department of the Navy)	$6,623,691	0.2%	Rank history: #35 in FY2021, #28 in FY2022 and not on the FY2024–FY2025 lists; down 5 since FY2022.
34	The Mil Corporation Top agencies Navy (Department of the Navy)	$6,602,564	0.2%	Rank history: #38 in FY2021, #36 in FY2022, #28 in FY2024 and #18 in FY2025; up 2 since FY2022.
35	Sustainable System Solutions LLC Top agencies Army (Department of the Army)	$6,550,000	0.2%	Rank history: not on the FY2021–FY2022 lists, #45 in FY2024 and #65 in FY2025; new.
36	Analytic Services Inc. Through Advanced Technology International Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$5,666,574	0.2%	Rank history: not on the FY2021 list, #56 in FY2022 and not on the FY2024–FY2025 lists; up 20 since FY2022.
37	Ssai of Georgia, LLC 2 awardees Top agencies USAF (Department of the Air Force)	$5,306,869	0.2%	Rank history: not on the FY2021 list, #41 in FY2022, #40 in FY2024 and not on the FY2025 list; up 4 since FY2022.
38	Precision Resources Inc. Through Precision Fabricating & Cleaning Company, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$5,265,616	0.2%	Rank history: #45 in FY2021, #31 in FY2022 and not on the FY2024–FY2025 lists; down 7 since FY2022.
39	Electronic Warfare Associates, Inc. Through EWA Government Systems, Inc. Top agencies Navy (Department of the Navy)	$5,021,070	0.2%	Rank history: #32 in FY2021, #30 in FY2022, #78 in FY2024 and not on the FY2025 list; down 9 since FY2022.
40	Rite-Solutions, Inc. Top agencies Navy (Department of the Navy)	$4,474,985	0.1%	Rank history: #39 in FY2021, #46 in FY2022, #39 in FY2024 and not on the FY2025 list; up 6 since FY2022.
41	A Sonabend Company, Inc. Top agencies Navy (Department of the Navy)	$4,401,507	0.1%	Rank history: #42 in FY2021, #51 in FY2022, #42 in FY2024 and #48 in FY2025; up 10 since FY2022.
42	Amentum Services, Inc. Top agencies Navy (Department of the Navy)	$3,987,506	0.1%	Rank history: #37 in FY2021, #37 in FY2022, #11 in FY2024 and not on the FY2025 list; down 5 since FY2022.
43	Coherent Technical Services, Inc. Top agencies Navy (Department of the Navy)	$3,896,555	0.1%	Rank history: not on the FY2021 list, #52 in FY2022, #92 in FY2024 and not on the FY2025 list; up 9 since FY2022.
44	Scr, Inc. Top agencies Army (Department of the Army)	$3,892,064	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
45	Caterpillar Inc. Top agencies Army (Department of the Army)	$3,840,346	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
46	Scitec Innovations LLC Top agencies MDA (DOD Missile Defense Agency)	$3,518,780	0.1%	Rank history: not on the FY2021 list, #42 in FY2022, #30 in FY2024 and #27 in FY2025; down 4 since FY2022.
47	Science & Technology Corporation Top agencies Army (Department of the Army)	$3,163,873	0.1%	Rank history: #40 in FY2021, #33 in FY2022, #49 in FY2024 and #52 in FY2025; down 14 since FY2022.
48	Oshkosh Corp 2 awardees, including Oshkosh Defense LLC Top agencies Navy (Department of the Navy)	$3,082,632	0.1%	Rank history: #29 in FY2021, #61 in FY2022 and not on the FY2024–FY2025 lists; up 13 since FY2022.
49	Agile Defense LLC Top agencies DHS (Department of Homeland Security)	$3,058,603	0.1%	Rank history: not on the FY2021–FY2022 lists, #55 in FY2024 and not on the FY2025 list; new.
50	Professional Software Consortium Inc. Top agencies DFAS (Defense Finance and Accounting Service)	$3,024,432	0.1%	Rank history: #50 in FY2021, #49 in FY2022, #60 in FY2024 and not on the FY2025 list; down 1 since FY2022.
51	J.f. Taylor, Inc. Top agencies Navy (Department of the Navy)	$2,996,647	0.1%	Rank history: #63 in FY2021, #43 in FY2022, #52 in FY2024 and #50 in FY2025; down 8 since FY2022.
52	JP Donovan Construction Inc. Top agencies NASA (National Aeronautics and Space Administration)	$2,932,423	0.1%	Rank history: #57 in FY2021, #97 in FY2022 and not on the FY2024–FY2025 lists; up 45 since FY2022.
53	Avtech Research Corporation Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$2,669,097	0.1%	Rank history: #43 in FY2021, #55 in FY2022, #87 in FY2024 and #80 in FY2025; up 2 since FY2022.
54	B2 Constructors LLC Top agencies VA (Department of Veterans Affairs)	$2,660,044	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
55	Flir Systems Inc. 2 awardees, including Teledyne Flir Defense, Inc. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy)	$2,384,489	0.1%	Rank history: #60 in FY2021, #57 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
56	DRS Global Enterprise Solutions Inc Through DRS Advanced ISR LLC Top agencies Navy (Department of the Navy)	$2,252,693	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
57	Ceia USA Ltd Top agencies DHS (Department of Homeland Security)	$2,252,275	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
58	Integrated Security Technologies Inc. Top agencies Navy (Department of the Navy)	$2,170,687	0.1%	Rank history: #47 in FY2021, #67 in FY2022, #61 in FY2024 and #66 in FY2025; up 9 since FY2022.
59	Kratos Defense & Security Solutions, Inc. Through Kratos Unmanned Aerial Systems, Inc. Top agencies Navy (Department of the Navy)	$2,140,274	0.1%	Rank history: not on the FY2021 list, #86 in FY2022 and not on the FY2024–FY2025 lists; up 27 since FY2022.
60	David Clark Company Incorporated 2 awardees, including Air-Lock, Incorporated Top agencies NASA (National Aeronautics and Space Administration)	$2,098,472	0.1%	Rank history: #58 in FY2021, #90 in FY2022, #80 in FY2024 and #68 in FY2025; up 30 since FY2022.
61	Etolin Strait Development Group LLC Through Etolin Strait Partners, LLC Top agencies Navy (Department of the Navy)	$2,086,242	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
62	Advanced Electronics Company Limited Top agencies USAF (Department of the Air Force)	$2,073,119	0.1%	Rank history: #30 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
63	Echelon Services, LLC Top agencies HUD (Department of Housing and Urban Development)	$1,949,508	0.1%	Rank history: not on the FY2021 list, #98 in FY2022, #93 in FY2024 and #79 in FY2025; up 35 since FY2022.
64	The Bank of New York Mellon Corporation Through Eagle Investment Systems LLC Top agencies PBGC (Pension Benefit Guaranty Corporation)	$1,884,250	0.1%	Rank history: #69 in FY2021, #66 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
65	Goodwill Industries of South Florida Inc. Top agencies Army (Department of the Army)	$1,865,031	0.1%	Rank history: #11 in FY2021, #34 in FY2022, #73 in FY2024 and not on the FY2025 list; down 31 since FY2022.
66	Battelle Memorial Institute Top agencies DOS (Department of State)	$1,756,564	0.1%	Rank history: #44 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
67	General Motors Company Through GM Defense LLC Top agencies DOS (Department of State)	$1,750,732	0.1%	Rank history: #12 in FY2021, #48 in FY2022 and not on the FY2024–FY2025 lists; down 19 since FY2022.
68	Applied Management Corp Top agencies Navy (Department of the Navy)	$1,725,478	0.1%	Rank history: #54 in FY2021, #65 in FY2022, #47 in FY2024 and #67 in FY2025; down 3 since FY2022.
69	Mide Technology Corp Top agencies Navy (Department of the Navy)	$1,593,424	<0.1%	Rank history: not on the FY2021 list, #84 in FY2022 and not on the FY2024–FY2025 lists; up 15 since FY2022.
70	W E S T Development, Inc. Top agencies Navy (Department of the Navy)	$1,549,256	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
71	General Dynamics Satcom Technologies Inc. 3 awardees, including Microwave Power Products, Inc. and CPI Electron Device Business, Inc. Top agencies Navy (Department of the Navy)	$1,519,157	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 62 since FY2022.
72	Metaphase Consulting LLC Top agencies USAID (US Agency for International Development)	$1,422,763	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
73	Government Marketing and Procurement, LLC Top agencies DOT (Department of Transportation)	$1,404,428	<0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #32 in FY2025; new.
74	Thomas Scientific LLC Through Vigor Works LLC Top agencies USSOCOM (United States Special Operations Command)	$1,341,274	<0.1%	Rank history: not on the FY2021 list, #60 in FY2022, #83 in FY2024 and not on the FY2025 list; down 14 since FY2022.
75	General Electric Company 3 awardees, including GE Aviation Systems LLC Top agencies Navy (Department of the Navy) NASA (National Aeronautics and Space Administration) VA (Department of Veterans Affairs)	$1,246,690	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
76	Veteran Information Technologies, LLC Top agencies NASA (National Aeronautics and Space Administration)	$1,212,647	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
77	Arotech Corporation Through Faac Incorporated Top agencies Navy (Department of the Navy)	$1,125,068	<0.1%	Rank history: #49 in FY2021, #58 in FY2022 and not on the FY2024–FY2025 lists; down 19 since FY2022.
78	Johnson Controls Security Solutions LLC 2 awardees, including Johnson Controls Navy Systems, LLC Top agencies Navy (Department of the Navy) VA (Department of Veterans Affairs)	$1,122,460	<0.1%	Rank history: #71 in FY2021, #76 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
79	The Pennsylvania State University Top agencies Navy (Department of the Navy)	$1,115,846	<0.1%	Rank history: not on the FY2021–FY2022 lists, #59 in FY2024 and #77 in FY2025; up 25 since FY2022.
80	Ship Colonna'S Yard Incorporated Through Colonna's Shipyard Inc. Top agencies Navy (Department of the Navy)	$1,109,451	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
81	Agilent Technologies Inc. Top agencies DHS (Department of Homeland Security)	$981,069	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
82	Strategic Enterprise Solutions Corporation Top agencies USAF (Department of the Air Force)	$963,767	<0.1%	Rank history: not on the FY2021 list, #73 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
83	Alaska Integrated Services, LLC Top agencies USAF (Department of the Air Force)	$897,850	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
84	Korean Air Lines Co.,Ltd. Top agencies USAF (Department of the Air Force)	$864,363	<0.1%	Rank history: #33 in FY2021, #40 in FY2022, #31 in FY2024 and #63 in FY2025; down 44 since FY2022.
85	Trofholz Technologies Inc. Top agencies Navy (Department of the Navy)	$835,039	<0.1%	Rank history: not on the FY2021–FY2022 lists, #74 in FY2024 and #72 in FY2025; new.
86	Rada Technologies LLC Top agencies Navy (Department of the Navy)	$822,960	<0.1%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2024 and not on the FY2025 list; new.
87	Cobham Mission Systems Orchard Park Inc. Through Caes Systems LLC Top agencies Navy (Department of the Navy)	$773,536	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 51 since FY2022.
88	V3Gate, LLC Top agencies DOJ (Department of Justice)	$748,257	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
89	Honeywell International Inc. Top agencies USAF (Department of the Air Force)	$731,801	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
90	Seaboard Controls, LLC Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico)	$718,221	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
91	Government of Canada Through Canadian Commercial Corporation Top agencies Navy (Department of the Navy)	$686,380	<0.1%	Rank history: #36 in FY2021, #54 in FY2022, #96 in FY2024 and not on the FY2025 list; down 37 since FY2022.
92	Kongsberg Gruppen ASA Through Kongsberg Discovery US, LLC Top agencies Navy (Department of the Navy)	$649,754	<0.1%	Rank history: #72 in FY2021, #92 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
93	Meggitt PLC Through Inveris Training Solutions, Inc. Top agencies Army (Department of the Army)	$631,239	<0.1%	Rank history: not on the FY2021 list, #87 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
94	Milpower, Inc. Top agencies Navy (Department of the Navy)	$608,190	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
95	Bluehalo Labs, LLC Top agencies Navy (Department of the Navy)	$580,500	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 79 since FY2022.
96	Textron Inc. Through Textron Systems Corporation Top agencies Navy (Department of the Navy)	$543,850	<0.1%	Rank history: #77 in FY2021, #24 in FY2022, not on the FY2024 list and #64 in FY2025; down 72 since FY2022.
97	W.e. Bowers, Inc. Top agencies National Gallery of Art	$535,893	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 43 since FY2022.
98	Albireo Energy LLC Through Alabama Controls, Inc. Top agencies Army (Department of the Army)	$517,356	<0.1%	Rank history: not on the FY2021 list, #91 in FY2022 and not on the FY2024–FY2025 lists; down 7 since FY2022.
99	Rigaku Americas Holding Inc Through Rigaku Analytical Devices, Inc. Top agencies DHS (Department of Homeland Security)	$495,000	<0.1%	Rank history: #100 in FY2021, #93 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
100	Dana Safety Supply Inc. Top agencies DOI (Department of the Interior) DHS (Department of Homeland Security)	$491,599	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 60 since FY2022.

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100 of 408 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC K

Code	Net obligations	Largest contractor
K0 Modification of Equipment	$3,029,211,790	Lockheed Martin Corporation

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 $3.29 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 K contractors in FY2023?

1. Lockheed Martin Corporation ($1.22B), 2. The Boeing Company ($240M), 3. RTX Corporation ($213M), 4. Leidos Holdings, Inc. ($206M), 5. General Dynamics Corporation ($182M), 6. Northrop Grumman Corporation ($170M), 7. BAE Systems PLC ($128M), 8. Alsalam Aerospace Industries Company ($74.9M), 9. DCS Corporation ($43.4M), 10. General Dynamics Information Technology, Inc. ($33M).

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