Top 100 Contractors in PSC 28: Engines and Turbines and Component, FY2025

Name: Top 100 Contractors in PSC 28: Engines and Turbines and Component, FY2025
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe

The top 10 won 93% of FY2025 PSC 28 contract dollars

Contract obligations: $10,924,438,767 Net of deobligations, by contracts coded PSC 28 or a code under it
Contractors: 627 Parent companies with an obligation
Largest contractor: RTX Corporation $5.06 billion, 45.0% 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	RTX Corporation 8 awardees, including Pratt & Whitney Military Aftermarket Services, Inc., Goodrich Corporation and Hamilton Sundstrand Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$5,061,548,667	45.0%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023 and #1 in FY2024; unchanged since FY2024.
2	General Electric Company 9 awardees, including Unison Industries LLC, GE Engine Services Distribution, L.L.C. and GE Aviation Systems LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$3,249,259,991	28.9%	Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023 and #2 in FY2024; unchanged since FY2024.
3	Honeywell International Inc. 3 awardees Top agencies Army (Department of the Army) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$817,411,310	7.3%	Rank history: #4 in FY2021, #3 in FY2022, #4 in FY2023 and #3 in FY2024; unchanged since FY2024.
4	Rolls-Royce Solutions America Inc. 4 awardees, including Rolls-Royce Corporation and Rolls-Royce Marine North America Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$577,362,593	5.1%	Rank history: not on the FY2021–FY2022 lists, #41 in FY2023 and #7 in FY2024; up 3 since FY2024.
5	Cummins Inc. 7 awardees, including Cummins Power Generation Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$326,951,021	2.9%	Rank history: #10 in FY2021, #11 in FY2022, #6 in FY2023 and #5 in FY2024; unchanged since FY2024.
6	CFM International Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$192,825,231	1.7%	Rank history: #5 in FY2021, #5 in FY2022, #3 in FY2023 and #4 in FY2024; down 2 since FY2024.
7	Fairwinds Technologies LLC Top agencies Navy (Department of the Navy)	$93,833,835	0.8%	Rank history: not on the FY2021–FY2024 lists; new.
8	EOS Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$67,701,069	0.6%	Rank history: #21 in FY2021, #82 in FY2022, #25 in FY2023 and #25 in FY2024; up 17 since FY2024.
9	Chromalloy SAN Diego Corp 2 awardees, including Chromalloy Component Services Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$50,848,445	0.5%	Rank history: not on the FY2021 list, #25 in FY2022, #9 in FY2023 and #15 in FY2024; up 6 since FY2024.
10	Am General LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$38,219,694	0.3%	Rank history: #16 in FY2021, #10 in FY2022, #14 in FY2023 and #14 in FY2024; up 4 since FY2024.
11	Oshkosh Corporation Through Oshkosh Defense LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$35,057,743	0.3%	Rank history: #8 in FY2021, #38 in FY2022, #62 in FY2023 and #35 in FY2024; up 24 since FY2024.
12	Acmt, Inc. Top agencies USAF (Department of the Air Force)	$31,645,502	0.3%	Rank history: #76 in FY2021, #52 in FY2022, #57 in FY2023 and #39 in FY2024; up 27 since FY2024.
13	AAR Government Services Inc. 2 awardees, including AAR Supply Chain, Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$25,243,472	0.2%	Rank history: not on the FY2021–FY2023 lists and #13 in FY2024; unchanged since FY2024.
14	Northrop Grumman Corporation 2 awardees, including Northrop Grumman Systems Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$22,315,788	0.2%	Rank history: #33 in FY2021, #19 in FY2022, #15 in FY2023 and #31 in FY2024; up 17 since FY2024.
15	Florida Ordnance Corporation Top agencies Army (Department of the Army)	$20,160,296	0.2%	Rank history: not on the FY2021–FY2023 lists and #20 in FY2024; up 5 since FY2024.
16	Chand, L.L.C. Top agencies DLA (Defense Logistics Agency)	$19,820,106	0.2%	Rank history: not on the FY2021–FY2023 lists and #33 in FY2024; up 17 since FY2024.
17	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$17,505,681	0.2%	Rank history: #25 in FY2021, #68 in FY2022, #23 in FY2023 and #34 in FY2024; up 17 since FY2024.
18	L3Harris Technologies, Inc. 2 awardees, including Aerojet Rocketdyne, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$15,369,348	0.1%	Rank history: not on the FY2021–FY2023 lists and #11 in FY2024; down 7 since FY2024.
19	Welin Lambie Limited Through Fairbanks Morse, LLC Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) Army (Department of the Army)	$12,735,270	0.1%	Rank history: not on the FY2021–FY2023 lists and #22 in FY2024; up 3 since FY2024.
20	Penn Power Group LLC Top agencies DLA (Defense Logistics Agency)	$9,083,537	0.1%	Rank history: not on the FY2021–FY2023 lists and #57 in FY2024; up 37 since FY2024.
21	Hutchinson Corporation Through Hutchinson Aerospace & Industry, Inc. Top agencies DLA (Defense Logistics Agency)	$8,959,100	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
22	Transaero, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$8,051,017	0.1%	Rank history: #26 in FY2021, #39 in FY2022, not on the FY2023 list and #45 in FY2024; up 23 since FY2024.
23	Hydro TECH Inc. Top agencies DOI (Department of the Interior)	$8,025,932	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
24	Argo Turboserve Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$7,685,693	0.1%	Rank history: not on the FY2021–FY2024 lists; up 97 since FY2024.
25	Caterpillar Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$6,645,517	0.1%	Rank history: #17 in FY2021, #33 in FY2022, #19 in FY2023 and #42 in FY2024; up 17 since FY2024.
26	Fairbanks Morse LLC 3 awardees Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$6,429,269	0.1%	Rank history: #14 in FY2021, #9 in FY2022, #7 in FY2023 and #10 in FY2024; down 16 since FY2024.
27	The Beacon Group Inc Through Beacon Industries, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$6,325,647	0.1%	Rank history: not on the FY2021–FY2023 lists and #47 in FY2024; up 20 since FY2024.
28	Twigg Corp Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$5,534,047	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
29	Union Machine Company of Lynn, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$5,511,544	<0.1%	Rank history: #34 in FY2021, #36 in FY2022, #45 in FY2023 and #72 in FY2024; up 43 since FY2024.
30	Chromalloy Gas Turbine LLC Top agencies USAF (Department of the Air Force)	$5,206,996	<0.1%	Rank history: #20 in FY2021, #26 in FY2022, #26 in FY2023 and #23 in FY2024; down 7 since FY2024.
31	The Boeing Company 5 awardees, including Boeing Distribution, Inc. and Boeing Distribution Services X, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$4,986,728	<0.1%	Rank history: #31 in FY2021, #7 in FY2022, #8 in FY2023 and #17 in FY2024; down 14 since FY2024.
32	Asia Pacific Aerospace PTY. Ltd. Top agencies Navy (Department of the Navy)	$4,889,672	<0.1%	Rank history: not on the FY2021–FY2022 lists, #28 in FY2023 and #38 in FY2024; up 6 since FY2024.
33	Atlantic Marine, LLC Top agencies DHS (Department of Homeland Security)	$4,317,622	<0.1%	Rank history: not on the FY2021 list, #62 in FY2022, not on the FY2023 list and #44 in FY2024; up 11 since FY2024.
34	Cogitic Corporation Top agencies Navy (Department of the Navy)	$4,274,807	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
35	Fiber Dynamics, Inc. Top agencies USAF (Department of the Air Force)	$4,103,706	<0.1%	Rank history: #50 in FY2021, #22 in FY2022, #55 in FY2023 and #12 in FY2024; down 23 since FY2024.
36	B.h. Aircraft Company, Inc. Top agencies USAF (Department of the Air Force)	$3,986,103	<0.1%	Rank history: not on the FY2021 list, #87 in FY2022, not on the FY2023 list and #89 in FY2024; up 53 since FY2024.
37	Johnson & Towers LLC Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$3,962,885	<0.1%	Rank history: #65 in FY2021, #54 in FY2022, #32 in FY2023 and #26 in FY2024; down 11 since FY2024.
38	Rhinestahl Corporation Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$3,939,126	<0.1%	Rank history: not on the FY2021–FY2023 lists and #19 in FY2024; down 19 since FY2024.
39	Melton Sales & Service Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) Navy (Department of the Navy)	$3,724,987	<0.1%	Rank history: #35 in FY2021, #37 in FY2022, #46 in FY2023 and #62 in FY2024; up 23 since FY2024.
40	Central Power Systems & Services, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) Army (Department of the Army)	$3,687,811	<0.1%	Rank history: not on the FY2021 list, #56 in FY2022, #94 in FY2023 and not on the FY2024 list; up 125 since FY2024.
41	Lockheed Martin Corporation 4 awardees, including Sikorsky Aircraft Corporation and Derco Aerospace, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$3,525,850	<0.1%	Rank history: #11 in FY2021, #14 in FY2022, #10 in FY2023 and #18 in FY2024; down 23 since FY2024.
42	Pacific Power Group, LLC Top agencies DHS (Department of Homeland Security)	$3,472,250	<0.1%	Rank history: #37 in FY2021, #15 in FY2022, #33 in FY2023 and #28 in FY2024; down 14 since FY2024.
43	Seahorse Defense Supply, LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$3,243,465	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 347 since FY2024.
44	Defense Maritime Solutions, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$3,135,183	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 395 since FY2024.
45	Periparts Group Inc. Top agencies Army (Department of the Army)	$2,924,678	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
46	Dela Technology Corporation Top agencies DLA (Defense Logistics Agency)	$2,911,733	<0.1%	Rank history: #43 in FY2021, #45 in FY2022, #65 in FY2023 and not on the FY2024 list; up 120 since FY2024.
47	Curtiss-Wright Electro-Mechanical Corporation Top agencies Navy (Department of the Navy)	$2,843,876	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 103 since FY2024.
48	Clarke Power Services Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$2,559,796	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 122 since FY2024.
49	LOC Performance Products LLC Top agencies Army (Department of the Army)	$2,551,924	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
50	Atlanta Gear Works, LLC Top agencies Army (Department of the Army)	$2,495,754	<0.1%	Rank history: not on the FY2021–FY2022 lists, #29 in FY2023 and #56 in FY2024; up 6 since FY2024.
51	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,436,434	<0.1%	Rank history: #71 in FY2021, #50 in FY2022, #77 in FY2023 and not on the FY2024 list; up 55 since FY2024.
52	Marinette Marine Corporation Through Fincantieri Marine Systems North America, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$2,369,713	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 90 since FY2024.
53	Sherwood Avionics and Accessories, Inc. Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$2,160,114	<0.1%	Rank history: not on the FY2021 list, #23 in FY2022, #17 in FY2023 and not on the FY2024 list; up 177 since FY2024.
54	Guidehouse Inc. Through Chromalloy Gas Turbine LLC Top agencies Navy (Department of the Navy)	$2,130,194	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
55	Norcatec LLC Top agencies DLA (Defense Logistics Agency)	$2,100,253	<0.1%	Rank history: #67 in FY2021, #59 in FY2022, #84 in FY2023 and not on the FY2024 list; up 417 since FY2024.
56	Canadian Commercial Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,097,448	<0.1%	Rank history: not on the FY2021–FY2023 lists and #41 in FY2024; down 15 since FY2024.
57	Atlantic Diving Supply, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,024,133	<0.1%	Rank history: not on the FY2021–FY2023 lists and #63 in FY2024; up 6 since FY2024.
58	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,871,780	<0.1%	Rank history: not on the FY2021 list, #83 in FY2022, not on the FY2023 list and #75 in FY2024; up 17 since FY2024.
59	Custom Manufacturing & Engineering, Inc. Top agencies Army (Department of the Army)	$1,641,616	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
60	FBC Enterprises LLC Top agencies DLA (Defense Logistics Agency)	$1,627,008	<0.1%	Rank history: not on the FY2021–FY2022 lists, #51 in FY2023 and #55 in FY2024; down 5 since FY2024.
61	Larkos Packing and Distribution Inc. Top agencies DLA (Defense Logistics Agency)	$1,619,102	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 67 since FY2024.
62	Pacific Sky Supply, Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$1,617,726	<0.1%	Rank history: #48 in FY2021, #71 in FY2022, #34 in FY2023 and #82 in FY2024; up 20 since FY2024.
63	Anderson Metal Industries Inc. Top agencies Navy (Department of the Navy)	$1,606,983	<0.1%	Rank history: not on the FY2021–FY2023 lists and #95 in FY2024; up 32 since FY2024.
64	Tecmotiv (Usa), Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$1,599,631	<0.1%	Rank history: not on the FY2021–FY2023 lists and #66 in FY2024; up 2 since FY2024.
65	Metro Machine Works Inc. Top agencies DLA (Defense Logistics Agency)	$1,579,300	<0.1%	Rank history: not on the FY2021–FY2022 lists, #70 in FY2023 and not on the FY2024 list; up 60 since FY2024.
66	Aerocontrolex Group, Inc. Top agencies DLA (Defense Logistics Agency)	$1,577,491	<0.1%	Rank history: not on the FY2021–FY2023 lists and #30 in FY2024; down 36 since FY2024.
67	Mactaggart, Scott & Co. Ltd Top agencies Navy (Department of the Navy)	$1,562,310	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
68	Standardaero Atlantic, Inc. Top agencies DOS (Department of State)	$1,496,566	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
69	Oil States Industries, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,472,141	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
70	The W.w. Williams Company, LLC Top agencies DHS (Department of Homeland Security)	$1,326,996	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
71	JLG Industries, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,282,630	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
72	Bet Shemesh Engines Ltd Top agencies USAF (Department of the Air Force)	$1,264,608	<0.1%	Rank history: not on the FY2021–FY2023 lists and #68 in FY2024; down 4 since FY2024.
73	MTU Maintenance Berlin- Brandenburg GMBH Through Vericor Power Systems LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,218,133	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
74	Acme Products & Engineering Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,189,520	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 138 since FY2024.
75	Prime Mover Holdings LLC 2 awardees, including Motor-Services Hugo Stamp, Inc. Top agencies Navy (Department of the Navy)	$1,173,732	<0.1%	Rank history: not on the FY2021–FY2022 lists, #42 in FY2023 and #99 in FY2024; up 24 since FY2024.
76	Dutch Valley Supply Co. Top agencies DLA (Defense Logistics Agency)	$1,125,660	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
77	Wood Group Pratt & Whitney Industrial Turbine Services, LLC Top agencies DHS (Department of Homeland Security)	$1,122,547	<0.1%	Rank history: not on the FY2021–FY2023 lists and #60 in FY2024; down 17 since FY2024.
78	Mentis Sciences Inc Top agencies DLA (Defense Logistics Agency)	$1,120,392	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 182 since FY2024.
79	Freightliner of Savannah, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$1,037,124	<0.1%	Rank history: #61 in FY2021, not on the FY2022–FY2023 lists and #67 in FY2024; down 12 since FY2024.
80	Airbus Helicopters, Inc. Top agencies DHS (Department of Homeland Security)	$1,028,100	<0.1%	Rank history: not on the FY2021–FY2023 lists and #88 in FY2024; up 8 since FY2024.
81	Steward Machine Co Inc. Top agencies DLA (Defense Logistics Agency)	$1,011,493	<0.1%	Rank history: not on the FY2021–FY2023 lists and #94 in FY2024; up 13 since FY2024.
82	Paramount Machine Company, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$986,323	<0.1%	Rank history: not on the FY2021–FY2023 lists and #58 in FY2024; down 24 since FY2024.
83	Rolls-Royce Marine North America Inc. Top agencies DLA (Defense Logistics Agency)	$885,466	<0.1%	Rank history: not on the FY2021–FY2023 lists and #65 in FY2024; down 18 since FY2024.
84	Triumph Group, Inc. Through Triumph Gear Systems, LLC Top agencies Navy (Department of the Navy)	$878,424	<0.1%	Rank history: #77 in FY2021, #69 in FY2022, #85 in FY2023 and #81 in FY2024; down 3 since FY2024.
85	S I T Corporation Top agencies DLA (Defense Logistics Agency)	$865,725	<0.1%	Rank history: not on the FY2021 list, #60 in FY2022 and not on the FY2023–FY2024 lists; up 83 since FY2024.
86	Immobilaire Inc. Top agencies DLA (Defense Logistics Agency)	$854,903	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
87	J&K Electronics Inc. Top agencies DLA (Defense Logistics Agency)	$852,581	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
88	Avair, LLC Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$841,205	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 14 since FY2024.
89	A.g.h. Industries, LLC Top agencies DLA (Defense Logistics Agency)	$837,130	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
90	Windward Enterprises, LLC Top agencies DLA (Defense Logistics Agency)	$770,072	<0.1%	Rank history: not on the FY2021–FY2022 lists, #92 in FY2023 and not on the FY2024 list; up 100 since FY2024.
91	Kerns Manufacturing Corp. Top agencies DLA (Defense Logistics Agency)	$765,780	<0.1%	Rank history: not on the FY2021–FY2022 lists, #72 in FY2023 and not on the FY2024 list; up 49 since FY2024.
92	Johnson Controls Navy Systems, LLC Top agencies DLA (Defense Logistics Agency)	$751,228	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 190 since FY2024.
93	Stein Seal Company Top agencies DLA (Defense Logistics Agency)	$732,108	<0.1%	Rank history: #93 in FY2021, #77 in FY2022, #83 in FY2023 and not on the FY2024 list; up 83 since FY2024.
94	Heico Aerospace Corporat 4 awardees, including Seal Dynamics LLC, Blue Aerospace LLC and Jetseal Inc. Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$729,240	<0.1%	Rank history: #41 in FY2021, #32 in FY2022, #43 in FY2023 and #50 in FY2024; down 44 since FY2024.
95	ITL LLC Top agencies DLA (Defense Logistics Agency)	$713,133	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
96	Chromalloy, S.A. De C.V. Top agencies USAF (Department of the Air Force)	$707,725	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 68 since FY2024.
97	American Indian Health & Services Corporation Through Circor Naval Solutions LLC Top agencies Navy (Department of the Navy)	$706,873	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
98	Central Florida Yamaha Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DOI (Department of the Interior)	$701,325	<0.1%	Rank history: #60 in FY2021, #74 in FY2022, #54 in FY2023 and #70 in FY2024; down 28 since FY2024.
99	Woodward, Inc. Through Woodward HRT Inc. Top agencies DLA (Defense Logistics Agency)	$692,287	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
100	Meggitt Aerospace Limited Through Parker-Hannifin Corporation Top agencies DLA (Defense Logistics Agency)	$682,729	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 15 since FY2024.

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100 of 627 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC 28

Code	Net obligations	Largest contractor
2840 Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components	$9,248,819,305	RTX Corporation
2835 Gas Turbines and Jet Engines, Non-Aircraft; and Components	$851,733,863	Honeywell International Inc.
2815 Diesel Engines and Components	$627,338,367	Cummins Inc.
2825 Steam Turbines and Components	$125,911,596	Fairwinds Technologies LLC
2895 Miscellaneous Engines and Components	$18,211,026	General Electric Company
2805 Gasoline Reciprocating Engines, Except Aircraft; and Components	$9,670,074	Atlantic Marine, LLC
2810 Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components	$1,086,159	17 Machinery LLC

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 $11.3 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 2025 ran Oct 1, 2024 – Sep 30, 2025. 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 FY2024. "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 FY2024 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 28 contractors in FY2025?

1. RTX Corporation ($5.06B), 2. General Electric Company ($3.25B), 3. Honeywell International Inc. ($817M), 4. Rolls-Royce Solutions America Inc. ($577M), 5. Cummins Inc. ($327M), 6. CFM International Inc. ($193M), 7. Fairwinds Technologies LLC ($93.8M), 8. EOS Inc. ($67.7M), 9. Chromalloy SAN Diego Corp ($50.8M), 10. Am General LLC ($38.2M).

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