Top 100 Contractors in PSC K0: Modification of Equipment, FY2024

Name: Top 100 Contractors in PSC K0: Modification of Equipment, FY2024
Creator: GovTribe

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

The top 10 won 79% of FY2024 PSC K0 contract dollars

Contract obligations: $3,182,770,415 Net of deobligations, by contracts coded PSC K0 or a code under it
Contractors: 399 Parent companies with an obligation
Largest contractor: Lockheed Martin Corporation $902 million, 27.2% 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 14 awardees, including Sikorsky Aircraft Corporation Top agencies Navy (Department of the Navy) MDA (DOD Missile Defense Agency) Army (Department of the Army)	$902,471,858	27.2%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023 and #1 in FY2025; unchanged since FY2023.
2	General Dynamics Corporation 8 awardees, including General Dynamics Information Technology, Inc., General Dynamics Land Systems Inc. and General Dynamics Mission Systems, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) DCMA (Defense Contract Management Agency)	$450,744,857	13.6%	Rank history: #2 in FY2021, #2 in FY2022, #5 in FY2023 and #2 in FY2025; up 3 since FY2023.
3	The Boeing Company 7 awardees Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$318,811,120	9.6%	Rank history: #4 in FY2021, #5 in FY2022, #2 in FY2023 and #3 in FY2025; down 1 since FY2023.
4	Northrop Grumman Corporation 10 awardees, including Northrop Grumman Systems Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) MDA (DOD Missile Defense Agency)	$225,297,158	6.8%	Rank history: #5 in FY2021, #6 in FY2022, #6 in FY2023 and #4 in FY2025; up 2 since FY2023.
5	Leidos Holdings, Inc. 6 awardees, including Leidos, Inc. Top agencies DOT (Department of Transportation) Navy (Department of the Navy)	$201,676,282	6.1%	Rank history: #7 in FY2021, #4 in FY2022, #4 in FY2023 and #6 in FY2025; down 1 since FY2023.
6	RTX Corporation 12 awardees, including Raytheon Company Top agencies DOT (Department of Transportation) Navy (Department of the Navy) MDA (DOD Missile Defense Agency)	$193,556,921	5.8%	Rank history: #3 in FY2021, #3 in FY2022, #3 in FY2023 and #5 in FY2025; down 3 since FY2023.
7	BAE Systems 9 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)	$145,481,387	4.4%	Rank history: #6 in FY2021, #7 in FY2022, #7 in FY2023 and #7 in FY2025; unchanged since FY2023.
8	Northrop Grumman Systems Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$83,924,832	2.5%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
9	Advanced Systems & Software Engineering Technologies LLC Top agencies Navy (Department of the Navy)	$48,887,846	1.5%	Rank history: not on the FY2021–FY2022 lists, #30 in FY2023 and #9 in FY2025; up 21 since FY2023.
10	Huntington Ingalls Industries, Inc. 3 awardees, including Huntington Ingalls Incorporated and HII Technical Solutions Corporation Top agencies Navy (Department of the Navy)	$47,890,964	1.4%	Rank history: #8 in FY2021, #23 in FY2022, #13 in FY2023 and #14 in FY2025; up 3 since FY2023.
11	Amentum Services, Inc. 2 awardees Top agencies Navy (Department of the Navy)	$41,867,304	1.3%	Rank history: #37 in FY2021, #37 in FY2022, #42 in FY2023 and not on the FY2025 list; up 31 since FY2023.
12	L3Harris Technologies, Inc. 10 awardees, including L3 Technologies, Inc., L3Harris Maritime Services Inc. and L3Harris Technologies Integrated Systems L.P. Top agencies Navy (Department of the Navy) MDA (DOD Missile Defense Agency)	$41,685,826	1.3%	Rank history: #10 in FY2021, #8 in FY2022, #12 in FY2023 and #8 in FY2025; unchanged since FY2023.
13	Salient Crgt, Inc. Top agencies Navy (Department of the Navy)	$39,109,282	1.2%	Rank history: not on the FY2021–FY2023 lists and #42 in FY2025; new.
14	Advanced Technology International Top agencies Navy (Department of the Navy)	$36,429,368	1.1%	Rank history: not on the FY2021–FY2023 lists and #26 in FY2025; new.
15	General Dynamics Mission Systems, Inc. Top agencies Navy (Department of the Navy)	$29,134,382	0.9%	Rank history: #16 in FY2021, #14 in FY2022, #18 in FY2023 and not on the FY2025 list; up 3 since FY2023.
16	Tetra Tech, Inc. Through Advanced Management Technology, Inc. Top agencies DOT (Department of Transportation)	$28,056,944	0.8%	Rank history: #21 in FY2021, #12 in FY2022, #11 in FY2023 and #17 in FY2025; down 5 since FY2023.
17	Chugach Technical Solutions LLC 2 awardees Top agencies Navy (Department of the Navy)	$25,500,794	0.8%	Rank history: #86 in FY2021, #26 in FY2022, #16 in FY2023 and #24 in FY2025; down 1 since FY2023.
18	Science Applications International Corporation 3 awardees Top agencies Navy (Department of the Navy)	$19,129,278	0.6%	Rank history: #19 in FY2021, #18 in FY2022, #15 in FY2023 and #25 in FY2025; down 3 since FY2023.
19	EWA Triad, LLC Top agencies Navy (Department of the Navy)	$18,213,073	0.5%	Rank history: not on the FY2021–FY2023 lists and #13 in FY2025; new.
20	Systems Application & Technologies Inc. Top agencies Navy (Department of the Navy)	$14,130,857	0.4%	Rank history: #23 in FY2021, #20 in FY2022, #23 in FY2023 and #28 in FY2025; up 3 since FY2023.
21	Dmaero, LLC 2 awardees Top agencies USAF (Department of the Air Force)	$13,917,170	0.4%	Rank history: not on the FY2021–FY2023 lists and #40 in FY2025; new.
22	V2X, Inc. 2 awardees, including V2X Aerospace LLC and Advantor Systems II LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$13,757,343	0.4%	Rank history: not on the FY2021–FY2023 lists and #21 in FY2025; new.
23	Precision Air Inc Top agencies DOS (Department of State)	$12,616,373	0.4%	Rank history: not on the FY2021–FY2022 lists, #28 in FY2023 and #39 in FY2025; up 5 since FY2023.
24	American Electronic Warfare Associates Incorporated 2 awardees Top agencies Navy (Department of the Navy)	$11,234,725	0.3%	Rank history: #24 in FY2021, #19 in FY2022, #20 in FY2023 and not on the FY2025 list; down 4 since FY2023.
25	Dayton T. Brown, Inc. Top agencies Navy (Department of the Navy)	$10,615,983	0.3%	Rank history: not on the FY2021–FY2023 lists and #22 in FY2025; new.
26	Kbr, Inc. 3 awardees, including KBR Wyle Services, LLC Top agencies Navy (Department of the Navy)	$10,284,058	0.3%	Rank history: #15 in FY2021, #17 in FY2022, #19 in FY2023 and not on the FY2025 list; down 7 since FY2023.
27	KBR Wyle Services LLC Top agencies Navy (Department of the Navy)	$9,846,191	0.3%	Rank history: not on the FY2021–FY2023 lists and #19 in FY2025; new.
28	The Mil Corporation Top agencies Navy (Department of the Navy)	$9,126,236	0.3%	Rank history: #38 in FY2021, #36 in FY2022, #34 in FY2023 and #18 in FY2025; up 6 since FY2023.
29	Advanced Technology Systems Inc. Through Salient Crgt, Inc. Top agencies Navy (Department of the Navy)	$8,098,984	0.2%	Rank history: not on the FY2021–FY2022 lists, #24 in FY2023 and not on the FY2025 list; down 5 since FY2023.
30	Scitec Innovations LLC Top agencies MDA (DOD Missile Defense Agency)	$7,758,349	0.2%	Rank history: not on the FY2021 list, #42 in FY2022, #46 in FY2023 and #27 in FY2025; up 16 since FY2023.
31	Korean Air Lines Co.,Ltd. Top agencies USAF (Department of the Air Force)	$7,674,843	0.2%	Rank history: #33 in FY2021, #40 in FY2022, #84 in FY2023 and #63 in FY2025; up 53 since FY2023.
32	DCS Corporation Top agencies Navy (Department of the Navy)	$7,325,844	0.2%	Rank history: #9 in FY2021, #10 in FY2022, #9 in FY2023 and not on the FY2025 list; down 23 since FY2023.
33	New Directions Technologies, Inc. Top agencies Navy (Department of the Navy)	$7,322,822	0.2%	Rank history: #26 in FY2021, #22 in FY2022, #26 in FY2023 and #34 in FY2025; down 7 since FY2023.
34	CNI Aviation Advantage, A Joint Venture, LLC Top agencies USAF (Department of the Air Force)	$7,095,148	0.2%	Rank history: not on the FY2021 list, #89 in FY2022, not on the FY2023 list and #38 in FY2025; up 208 since FY2023.
35	Imeco Inc. Top agencies Navy (Department of the Navy)	$6,413,420	0.2%	Rank history: not on the FY2021–FY2023 lists and #47 in FY2025; new.
36	Tri State Automatic Sprinkler, Inc. Top agencies Army (Department of the Army)	$6,371,043	0.2%	Rank history: not on the FY2021–FY2023 lists and #87 in FY2025; new.
37	Nakupuna Consulting LLC Top agencies DHA (Defense Health Agency)	$5,063,568	0.2%	Rank history: not on the FY2021–FY2023 lists and #37 in FY2025; new.
38	Metson Marine Services, Inc. Top agencies Navy (Department of the Navy)	$4,981,925	0.1%	Rank history: not on the FY2021–FY2023 lists and #41 in FY2025; new.
39	Rite-Solutions, Inc. Top agencies Navy (Department of the Navy)	$4,542,849	0.1%	Rank history: #39 in FY2021, #46 in FY2022, #40 in FY2023 and not on the FY2025 list; up 1 since FY2023.
40	Ssai of Georgia, LLC 2 awardees Top agencies USAF (Department of the Air Force)	$4,516,008	0.1%	Rank history: not on the FY2021 list, #41 in FY2022, #37 in FY2023 and not on the FY2025 list; down 3 since FY2023.
41	Sierra Nevada Company, LLC Top agencies Navy (Department of the Navy)	$4,405,160	0.1%	Rank history: not on the FY2021–FY2023 lists and #43 in FY2025; new.
42	A Sonabend Company, Inc. Top agencies Navy (Department of the Navy)	$4,349,393	0.1%	Rank history: #42 in FY2021, #51 in FY2022, #41 in FY2023 and #48 in FY2025; down 1 since FY2023.
43	American Systems Corporation Top agencies Navy (Department of the Navy)	$3,773,516	0.1%	Rank history: not on the FY2021–FY2023 lists and #49 in FY2025; up 82 since FY2023.
44	Allcom Global Services Inc. Through Strantech LLC Top agencies DISA (Defense Information Systems Agency)	$3,673,352	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
45	Sustainable System Solutions LLC Top agencies Army (Department of the Army)	$3,531,621	0.1%	Rank history: not on the FY2021–FY2022 lists, #35 in FY2023 and #65 in FY2025; down 10 since FY2023.
46	Mantech International Corporation 2 awardees, including Mantech Advanced Systems International, Inc. Top agencies Navy (Department of the Navy)	$3,400,914	0.1%	Rank history: not on the FY2021 list, #59 in FY2022, not on the FY2023 list and #35 in FY2025; up 67 since FY2023.
47	Applied Management Corp Top agencies Navy (Department of the Navy)	$3,296,696	0.1%	Rank history: #54 in FY2021, #65 in FY2022, #68 in FY2023 and #67 in FY2025; up 21 since FY2023.
48	Emerson Electric Co Through Emerson Process Management Power & Water Solutions, Inc. Top agencies Army (Department of the Army)	$3,198,125	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 126 since FY2023.
49	Science & Technology Corporation Top agencies Army (Department of the Army)	$3,186,036	0.1%	Rank history: #40 in FY2021, #33 in FY2022, #47 in FY2023 and #52 in FY2025; down 2 since FY2023.
50	General Atomics Aerotec Systems GMBH Top agencies Navy (Department of the Navy)	$3,176,174	0.1%	Rank history: not on the FY2021 list, #68 in FY2022, not on the FY2023 list and #55 in FY2025; returned.
51	L3HARRIS Aviation Products Inc 3 awardees, including L3Harris Technologies, Inc., L3Harris Technologies Integrated Systems L.P. and L3 Technologies, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$3,153,281	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
52	J.f. Taylor, Inc. Top agencies Navy (Department of the Navy)	$3,047,764	0.1%	Rank history: #63 in FY2021, #43 in FY2022, #51 in FY2023 and #50 in FY2025; down 1 since FY2023.
53	Magee Technologies LLC Top agencies Navy (Department of the Navy)	$2,965,494	0.1%	Rank history: not on the FY2021–FY2023 lists and #20 in FY2025; new.
54	Mantech Advanced Systems International, Inc. Top agencies Navy (Department of the Navy)	$2,911,407	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
55	Agile Defense LLC Top agencies DHS (Department of Homeland Security)	$2,869,020	0.1%	Rank history: not on the FY2021–FY2022 lists, #49 in FY2023 and not on the FY2025 list; down 6 since FY2023.
56	Hutchinson Corporation Through Hutchinson Industries, Inc. Top agencies Navy (Department of the Navy)	$2,279,039	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
57	Amentum Holdings, Inc. Through Amentum Services, Inc. Top agencies Navy (Department of the Navy)	$2,213,771	0.1%	Rank history: not on the FY2021–FY2023 lists and #10 in FY2025; new.
58	Montano Pipeline, Inc. Top agencies Navy (Department of the Navy)	$2,211,217	0.1%	Rank history: not on the FY2021–FY2023 lists and #75 in FY2025; new.
59	The Pennsylvania State University Top agencies Navy (Department of the Navy)	$2,086,542	0.1%	Rank history: not on the FY2021–FY2022 lists, #79 in FY2023 and #77 in FY2025; up 20 since FY2023.
60	Professional Software Consortium Inc. Top agencies DFAS (Defense Finance and Accounting Service)	$2,056,704	0.1%	Rank history: #50 in FY2021, #49 in FY2022, #50 in FY2023 and not on the FY2025 list; down 10 since FY2023.
61	Integrated Security Technologies Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,050,364	0.1%	Rank history: #47 in FY2021, #67 in FY2022, #58 in FY2023 and #66 in FY2025; down 3 since FY2023.
62	Frontier Electronic Systems Corp Top agencies Navy (Department of the Navy)	$1,690,696	0.1%	Rank history: not on the FY2021–FY2023 lists and #59 in FY2025; up 329 since FY2023.
63	Raytheon Company Top agencies Navy (Department of the Navy)	$1,590,043	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
64	Miles Treaster & Associates Top agencies DOI (Department of the Interior)	$1,539,772	<0.1%	Rank history: not on the FY2021 list, #74 in FY2022, not on the FY2023 list and not on the FY2025 list; up 41 since FY2023.
65	National Security Technology Accelerator Inc. Top agencies Navy (Department of the Navy)	$1,447,106	<0.1%	Rank history: not on the FY2021–FY2023 lists and #95 in FY2025; new.
66	Vertex Aerospace LLC Through V2X Aerospace LLC Top agencies Navy (Department of the Navy)	$1,426,144	<0.1%	Rank history: #20 in FY2021, #16 in FY2022, #17 in FY2023 and not on the FY2025 list; down 49 since FY2023.
67	Kratos Unmanned Aerial Systems, Inc. Top agencies Navy (Department of the Navy)	$1,413,253	<0.1%	Rank history: not on the FY2021–FY2023 lists and #70 in FY2025; new.
68	Kairos, Inc. Top agencies Navy (Department of the Navy)	$1,401,817	<0.1%	Rank history: not on the FY2021–FY2023 lists and #51 in FY2025; new.
69	Rada Technologies LLC Top agencies Navy (Department of the Navy)	$1,305,359	<0.1%	Rank history: not on the FY2021–FY2022 lists, #86 in FY2023 and not on the FY2025 list; up 17 since FY2023.
70	Fortive Corporation 2 awardees, including Censis Technologies, Inc. and Fluke Electronics Corp Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy)	$1,270,443	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
71	Saalex Corp Top agencies Navy (Department of the Navy)	$1,269,129	<0.1%	Rank history: not on the FY2021–FY2023 lists and #53 in FY2025; new.
72	Ahtna, Incorporated Through Ahtna Logistics, LLC Top agencies Navy (Department of the Navy)	$1,239,862	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
73	Goodwill Industries of South Florida Inc. Top agencies Army (Department of the Army)	$1,058,272	<0.1%	Rank history: #11 in FY2021, #34 in FY2022, #65 in FY2023 and not on the FY2025 list; down 8 since FY2023.
74	Trofholz Technologies Inc. 2 awardees Top agencies Navy (Department of the Navy)	$1,030,035	<0.1%	Rank history: not on the FY2021 list, #75 in FY2022, #85 in FY2023 and #72 in FY2025; up 11 since FY2023.
75	Reliance Construction Management Company Top agencies DHS (Department of Homeland Security)	$1,002,027	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
76	Phygen, Inc. Top agencies Army (Department of the Army)	$979,315	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 30 since FY2023.
77	Johnson Controls Navy Systems, LLC Top agencies Navy (Department of the Navy)	$978,994	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
78	Electronic Warfare Associates, Inc. 2 awardees, including EWA Triad, LLC Top agencies Navy (Department of the Navy)	$965,211	<0.1%	Rank history: #32 in FY2021, #30 in FY2022, #39 in FY2023 and not on the FY2025 list; down 39 since FY2023.
79	Canadian Commercial Corporation Top agencies Navy (Department of the Navy)	$873,832	<0.1%	Rank history: not on the FY2021–FY2023 lists and #62 in FY2025; new.
80	David Clark Company Incorporated Through Air-Lock, Incorporated Top agencies NASA (National Aeronautics and Space Administration)	$805,540	<0.1%	Rank history: #58 in FY2021, #90 in FY2022, #60 in FY2023 and #68 in FY2025; down 20 since FY2023.
81	Schenck USA Corp. Top agencies Army (Department of the Army)	$804,500	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
82	Sanford Federal, Inc. Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security)	$802,316	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
83	Thomas Scientific LLC Through Vigor Works LLC Top agencies USSOCOM (United States Special Operations Command)	$799,632	<0.1%	Rank history: not on the FY2021 list, #60 in FY2022, #74 in FY2023 and not on the FY2025 list; down 9 since FY2023.
84	QED Systems, Inc. Top agencies Navy (Department of the Navy)	$744,000	<0.1%	Rank history: not on the FY2021 list, #99 in FY2022, not on the FY2023 list and not on the FY2025 list; up 35 since FY2023.
85	Center Line Electric Inc. Top agencies Army (Department of the Army)	$738,571	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 79 since FY2023.
86	Idemia Identity & Security USA LLC Top agencies DHS (Department of Homeland Security)	$734,429	<0.1%	Rank history: not on the FY2021–FY2023 lists and #83 in FY2025; new.
87	Avtech Research Corporation Top agencies USAF (Department of the Air Force)	$680,178	<0.1%	Rank history: #43 in FY2021, #55 in FY2022, #53 in FY2023 and #80 in FY2025; down 34 since FY2023.
88	Hyperion Technology Group Inc Top agencies Navy (Department of the Navy)	$673,149	<0.1%	Rank history: not on the FY2021–FY2023 lists and #61 in FY2025; new.
89	Science and Engineering Services, LLC Top agencies Army (Department of the Army)	$651,054	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
90	Teledyne Flir Defense, Inc. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy)	$635,921	<0.1%	Rank history: not on the FY2021–FY2023 lists and #74 in FY2025; new.
91	Kongsberg Underwater Technology LLC Through Kongsberg Discovery US, LLC Top agencies Navy (Department of the Navy)	$625,763	<0.1%	Rank history: not on the FY2021–FY2023 lists and #78 in FY2025; up 220 since FY2023.
92	Coherent Technical Services, Inc. Top agencies Navy (Department of the Navy)	$604,769	<0.1%	Rank history: not on the FY2021 list, #52 in FY2022, #43 in FY2023 and not on the FY2025 list; down 49 since FY2023.
93	Echelon Services, LLC Top agencies HUD (Department of Housing and Urban Development)	$561,312	<0.1%	Rank history: not on the FY2021 list, #98 in FY2022, #63 in FY2023 and #79 in FY2025; down 30 since FY2023.
94	Alabama Controls, Inc. Top agencies Army (Department of the Army)	$517,356	<0.1%	Rank history: not on the FY2021–FY2023 lists and #86 in FY2025; new.
95	D7, LLC Top agencies Commerce (Department of Commerce)	$506,337	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
96	Government of Canada Through Canadian Commercial Corporation Top agencies Navy (Department of the Navy)	$484,157	<0.1%	Rank history: #36 in FY2021, #54 in FY2022, #91 in FY2023 and not on the FY2025 list; down 5 since FY2023.
97	Johnson Controls Inc Through Johnson Controls Fire Protection LP Top agencies Army (Department of the Army)	$458,460	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
98	PPD Development LP 2 awardees, including Life Technologies Corporation and Thermo Electron North America LLC Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) DOJ (Department of Justice)	$454,498	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
99	L3Harris Technologies Integrated Systems L.P. Top agencies MDA (DOD Missile Defense Agency)	$453,319	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
100	Spirent Federal Systems Inc. Top agencies Navy (Department of the Navy)	$449,700	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.

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100 of 399 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC K0

Code	Net obligations	Largest contractor
K058 Modification of Equipment: Communication, Detection, and Coherent Radiation Equipment	$680,199,992	General Dynamics Corporation
K059 Modification of Equipment: Electrical and Electronic Equipment Components	$96,197,779	Northrop Grumman Corporation
K023 Modification of Equipment: Ground Effect Vehicles, Motor Vehicles, Trailers, and Cycles	$48,170,030	BAE Systems
K099 Modification of Equipment: Miscellaneous	$25,038,911	Huntington Ingalls Industries, Inc.
K063 Modification of Equipment: Alarm, Signal, and Security Detection Systems	$86,501	Integrated Security Technologies Inc.

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 $3.32 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 K0 contractors in FY2024?

1. Lockheed Martin Corporation ($902M), 2. General Dynamics Corporation ($451M), 3. The Boeing Company ($319M), 4. Northrop Grumman Corporation ($225M), 5. Leidos Holdings, Inc. ($202M), 6. RTX Corporation ($194M), 7. BAE Systems ($145M), 8. Northrop Grumman Systems Corporation ($83.9M), 9. Advanced Systems & Software Engineering Technologies LLC ($48.9M), 10. Huntington Ingalls Industries, Inc. ($47.9M).

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