Top 100 Contractors in NAICS 3336: Engine, Turbine, and Power Transmission Equipment Manufacturing, FY2025

Name: Top 100 Contractors in NAICS 3336: Engine, Turbine, and Power Transmission Equipment Manufacturing, FY2025
Creator: GovTribe

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

The top 10 won 60% of FY2025 NAICS 3336 contract dollars

Contract obligations: $1,710,702,481 Net of deobligations, by contracts coded NAICS 3336 or a code under it
Contractors: 1,406 Parent companies with an obligation
Largest contractor: Cummins Inc. $322 million, 18.2% 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	Cummins Inc. 6 awardees Top agencies Army (Department of the Army) DHS (Department of Homeland Security) Navy (Department of the Navy)	$322,477,716	18.2%	Rank history: #4 in FY2021, #4 in FY2022, #4 in FY2023 and #1 in FY2024; unchanged since FY2024.
2	Allison Transmission Holdings Inc. Through Allison Transmission Inc. Top agencies Army (Department of the Army)	$279,866,814	15.8%	Rank history: not on the FY2021–FY2022 lists, #1 in FY2023 and #14 in FY2024; up 12 since FY2024.
3	Rolls-Royce Solutions America Inc. 3 awardees, including Rolls-Royce Marine North America Inc. and Rolls-Royce Corporation Top agencies Army (Department of the Army) DHS (Department of Homeland Security) Navy (Department of the Navy)	$97,811,751	5.5%	Rank history: not on the FY2021–FY2023 lists and #2 in FY2024; down 1 since FY2024.
4	Welin Lambie Limited Through Fairbanks Morse, LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$72,787,811	4.1%	Rank history: not on the FY2021–FY2023 lists and #3 in FY2024; down 1 since FY2024.
5	EOS Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$71,150,044	4.0%	Rank history: #21 in FY2021, not on the FY2022 list, #27 in FY2023 and #31 in FY2024; up 26 since FY2024.
6	Everllence Middle East and Africa L.l.c Top agencies Navy (Department of the Navy)	$51,214,027	2.9%	Rank history: not on the FY2021–FY2023 lists and #4 in FY2024; down 2 since FY2024.
7	Oshkosh Corporation Through Oshkosh Defense LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$43,173,916	2.4%	Rank history: #3 in FY2021, #19 in FY2022, #22 in FY2023 and #17 in FY2024; up 10 since FY2024.
8	Honeywell International Inc. 3 awardees Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) Army (Department of the Army)	$39,966,192	2.3%	Rank history: #27 in FY2021, #22 in FY2022, #14 in FY2023 and #10 in FY2024; up 2 since FY2024.
9	Am General LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$39,879,584	2.2%	Rank history: #14 in FY2021, #6 in FY2022, #17 in FY2023 and #12 in FY2024; up 3 since FY2024.
10	Chand, L.L.C. Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$37,635,247	2.1%	Rank history: not on the FY2021–FY2023 lists and #29 in FY2024; up 19 since FY2024.
11	AAR Government Services Inc. 2 awardees, including AAR Supply Chain, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$26,619,129	1.5%	Rank history: not on the FY2021–FY2023 lists and #15 in FY2024; up 4 since FY2024.
12	Atlantic Diving Supply, Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) Navy (Department of the Navy)	$24,225,000	1.4%	Rank history: not on the FY2021–FY2023 lists and #11 in FY2024; down 1 since FY2024.
13	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$23,798,869	1.3%	Rank history: #16 in FY2021, #40 in FY2022, #19 in FY2023 and #20 in FY2024; up 7 since FY2024.
14	Florida Ordnance Corporation Top agencies Army (Department of the Army)	$20,160,296	1.1%	Rank history: not on the FY2021–FY2023 lists and #19 in FY2024; up 5 since FY2024.
15	Caterpillar Inc. 2 awardees Top agencies Army (Department of the Army) Navy (Department of the Navy) DHS (Department of Homeland Security)	$20,044,596	1.1%	Rank history: #7 in FY2021, #14 in FY2022, #16 in FY2023 and #8 in FY2024; down 7 since FY2024.
16	Bird-Johnson Propeller Company, LLC Top agencies Navy (Department of the Navy)	$17,877,001	1.0%	Rank history: not on the FY2021–FY2024 lists; new.
17	Renk America LLC Top agencies Army (Department of the Army)	$16,614,748	0.9%	Rank history: not on the FY2021–FY2023 lists and #26 in FY2024; up 9 since FY2024.
18	Defense Maritime Solutions, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$14,355,151	0.8%	Rank history: not on the FY2021–FY2023 lists and #16 in FY2024; down 2 since FY2024.
19	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$13,171,672	0.7%	Rank history: #9 in FY2021, #13 in FY2022, #23 in FY2023 and #18 in FY2024; down 1 since FY2024.
20	Indal Technologies Inc 3 awardees, including Curtiss-Wright Electro-Mechanical Corporation Top agencies Navy (Department of the Navy)	$9,966,269	0.6%	Rank history: not on the FY2021–FY2024 lists; new.
21	Bravo, Inc. Top agencies VA (Department of Veterans Affairs)	$9,556,100	0.5%	Rank history: #23 in FY2021, #20 in FY2022, not on the FY2023 list and #27 in FY2024; up 6 since FY2024.
22	Hutchinson Corporation Through Hutchinson Aerospace & Industry, Inc. Top agencies DLA (Defense Logistics Agency)	$8,959,100	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
23	Jamaica Bearings Co., Inc. 2 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$8,841,996	0.5%	Rank history: #46 in FY2021, #52 in FY2022, #55 in FY2023 and #42 in FY2024; up 19 since FY2024.
24	AFP Industries, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$8,469,535	0.5%	Rank history: not on the FY2021–FY2022 lists, #86 in FY2023 and #36 in FY2024; up 12 since FY2024.
25	Esco Technologies Inc. 2 awardees, including Globe Composite Solutions, LLC and Vacco Industries Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$8,412,507	0.5%	Rank history: not on the FY2021–FY2023 lists and #56 in FY2024; up 31 since FY2024.
26	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$8,348,710	0.5%	Rank history: #47 in FY2021, #41 in FY2022, #34 in FY2023 and #37 in FY2024; up 11 since FY2024.
27	Hydro TECH Inc. Top agencies DOI (Department of the Interior)	$8,025,932	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
28	Melton Sales & Service Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) Navy (Department of the Navy)	$7,012,894	0.4%	Rank history: #30 in FY2021, #28 in FY2022, #31 in FY2023 and #40 in FY2024; up 12 since FY2024.
29	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)	$6,956,713	0.4%	Rank history: not on the FY2021–FY2023 lists and #35 in FY2024; up 6 since FY2024.
30	Idsc Holdings LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$6,626,465	0.4%	Rank history: not on the FY2021–FY2023 lists and #41 in FY2024; up 11 since FY2024.
31	Johnson Controls Navy Systems, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$6,621,055	0.4%	Rank history: not on the FY2021–FY2024 lists; up 119 since FY2024.
32	ECI Defense Group, Inc. 2 awardees Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) Navy (Department of the Navy)	$5,520,859	0.3%	Rank history: not on the FY2021–FY2022 lists, #46 in FY2023 and #33 in FY2024; up 1 since FY2024.
33	FBC Enterprises LLC Top agencies DLA (Defense Logistics Agency)	$5,364,148	0.3%	Rank history: not on the FY2021 list, #69 in FY2022, #95 in FY2023 and #53 in FY2024; up 20 since FY2024.
34	BAE Systems 4 awardees, including BAE Systems Maritime Solutions San Diego Inc., BAE Systems Land & Armaments L.P. and BAE Systems Controls Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$5,352,071	0.3%	Rank history: not on the FY2021–FY2023 lists and #7 in FY2024; down 27 since FY2024.
35	Dela Technology Corporation Top agencies DLA (Defense Logistics Agency)	$5,260,806	0.3%	Rank history: #33 in FY2021, not on the FY2022 list, #81 in FY2023 and not on the FY2024 list; up 74 since FY2024.
36	Fairbanks Morse LLC 2 awardees Top agencies Navy (Department of the Navy)	$5,228,997	0.3%	Rank history: #6 in FY2021, #2 in FY2022, #2 in FY2023 and #5 in FY2024; down 31 since FY2024.
37	Pacific Power Group, LLC Top agencies DHS (Department of Homeland Security)	$5,169,659	0.3%	Rank history: #32 in FY2021, #8 in FY2022, #32 in FY2023 and #22 in FY2024; down 15 since FY2024.
38	Central Power Systems & Services, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$5,148,774	0.3%	Rank history: not on the FY2021 list, #67 in FY2022, #88 in FY2023 and #85 in FY2024; up 47 since FY2024.
39	Johnson & Towers LLC Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$5,118,804	0.3%	Rank history: not on the FY2021–FY2024 lists; up 246 since FY2024.
40	Linmarr Associates, Inc. Top agencies DLA (Defense Logistics Agency)	$4,942,051	0.3%	Rank history: not on the FY2021 list, #35 in FY2022, #30 in FY2023 and #46 in FY2024; up 6 since FY2024.
41	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security) Navy (Department of the Navy)	$4,937,088	0.3%	Rank history: #17 in FY2021, #31 in FY2022, #43 in FY2023 and #47 in FY2024; up 6 since FY2024.
42	Argo Turboserve Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$4,682,031	0.3%	Rank history: not on the FY2021–FY2024 lists; up 124 since FY2024.
43	Integrated Procurement Technologies Top agencies DLA (Defense Logistics Agency)	$4,659,479	0.3%	Rank history: not on the FY2021–FY2023 lists and #86 in FY2024; up 43 since FY2024.
44	Kirby Corporation Through Engine Systems, Inc. Top agencies Navy (Department of the Navy)	$4,608,413	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
45	U.s.a. Spares Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$4,341,199	0.2%	Rank history: #37 in FY2021, not on the FY2022 list, #99 in FY2023 and not on the FY2024 list; up 100 since FY2024.
46	Atlantic Marine, LLC Top agencies DHS (Department of Homeland Security)	$4,317,622	0.2%	Rank history: not on the FY2021 list, #82 in FY2022, not on the FY2023 list and #51 in FY2024; up 5 since FY2024.
47	Cogitic Corporation Top agencies Navy (Department of the Navy)	$4,274,807	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
48	General Electric Company 5 awardees, including Unison Industries LLC Top agencies Navy (Department of the Navy) NASA (National Aeronautics and Space Administration)	$4,210,899	0.2%	Rank history: #12 in FY2021, #25 in FY2022, #12 in FY2023 and #6 in FY2024; down 42 since FY2024.
49	Tetrad Services, Inc. Top agencies USAF (Department of the Air Force)	$3,952,267	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
50	Timken Gears & Services Inc. 2 awardees Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$3,937,283	0.2%	Rank history: not on the FY2021–FY2024 lists; up 81 since FY2024.
51	Larkos Packing and Distribution Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) Navy (Department of the Navy)	$3,801,834	0.2%	Rank history: not on the FY2021–FY2023 lists and #82 in FY2024; up 31 since FY2024.
52	Hydraulics International, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$3,795,064	0.2%	Rank history: #45 in FY2021, #56 in FY2022, #68 in FY2023 and not on the FY2024 list; up 59 since FY2024.
53	Kongsberg Underwater Technology LLC Through Kongsberg Maritime Inc. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy)	$3,743,176	0.2%	Rank history: not on the FY2021–FY2023 lists and #57 in FY2024; up 4 since FY2024.
54	Transaero, Inc. Top agencies DLA (Defense Logistics Agency)	$3,728,045	0.2%	Rank history: #19 in FY2021, #33 in FY2022, #29 in FY2023 and #13 in FY2024; down 41 since FY2024.
55	Jo-Kell Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$3,601,395	0.2%	Rank history: #89 in FY2021, #71 in FY2022 and not on the FY2023–FY2024 lists; up 94 since FY2024.
56	Tecmotiv (Usa), Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$3,584,936	0.2%	Rank history: not on the FY2021–FY2023 lists and #98 in FY2024; up 42 since FY2024.
57	S I T Corporation Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$3,579,238	0.2%	Rank history: #71 in FY2021, #49 in FY2022, #51 in FY2023 and #72 in FY2024; up 15 since FY2024.
58	Wisconsin Ordnance Works Ltd Top agencies DLA (Defense Logistics Agency)	$3,539,006	0.2%	Rank history: #100 in FY2021, not on the FY2022–FY2023 lists and #60 in FY2024; up 2 since FY2024.
59	Aerocontrolex Group, Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$3,527,682	0.2%	Rank history: not on the FY2021–FY2023 lists and #25 in FY2024; down 34 since FY2024.
60	Norcatec LLC Top agencies DLA (Defense Logistics Agency)	$3,343,761	0.2%	Rank history: #86 in FY2021, #77 in FY2022, #56 in FY2023 and #87 in FY2024; up 27 since FY2024.
61	Federal Contracts LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) Navy (Department of the Navy)	$3,222,892	0.2%	Rank history: #57 in FY2021, #72 in FY2022, #49 in FY2023 and #78 in FY2024; up 17 since FY2024.
62	American Indian Health & Services Corporation 3 awardees, including Circor Naval Solutions LLC, Leslie Controls, Inc. and Circor Pumps North America LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$3,005,709	0.2%	Rank history: not on the FY2021–FY2023 lists and #93 in FY2024; up 31 since FY2024.
63	A&M Aerostructures, Inc. Top agencies DLA (Defense Logistics Agency)	$2,896,324	0.2%	Rank history: not on the FY2021–FY2023 lists and #69 in FY2024; up 6 since FY2024.
64	Curtiss-Wright Electro-Mechanical Corporation Top agencies Navy (Department of the Navy)	$2,843,876	0.2%	Rank history: not on the FY2021–FY2024 lists; up 210 since FY2024.
65	Oil States Industries, Inc. Top agencies Navy (Department of the Navy)	$2,825,651	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
66	Jered LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,549,990	0.1%	Rank history: not on the FY2021–FY2024 lists; up 230 since FY2024.
67	Marvin Engineering Co. Inc. 2 awardees, including Marvin Land Systems, Inc. and Flyer Defense, LLC Top agencies DLA (Defense Logistics Agency)	$2,441,022	0.1%	Rank history: not on the FY2021–FY2024 lists; up 80 since FY2024.
68	Arctic Slope Regional Corporation Through Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$2,258,552	0.1%	Rank history: not on the FY2021–FY2023 lists and #64 in FY2024; down 4 since FY2024.
69	ITL LLC Top agencies DLA (Defense Logistics Agency)	$2,243,540	0.1%	Rank history: not on the FY2021–FY2024 lists; up 152 since FY2024.
70	Ruta Supplies Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,208,430	0.1%	Rank history: #98 in FY2021, #44 in FY2022, #65 in FY2023 and #73 in FY2024; up 3 since FY2024.
71	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.
72	Kocsis Technologies Inc. Top agencies Navy (Department of the Navy)	$1,989,520	0.1%	Rank history: not on the FY2021–FY2024 lists; up 60 since FY2024.
73	Beaver Aerospace & Defense, Inc. Top agencies DLA (Defense Logistics Agency)	$1,946,336	0.1%	Rank history: not on the FY2021–FY2024 lists; up 408 since FY2024.
74	LOC Performance Products LLC Top agencies DLA (Defense Logistics Agency)	$1,862,384	0.1%	Rank history: not on the FY2021–FY2023 lists and #28 in FY2024; down 46 since FY2024.
75	General Dynamics Corporation 6 awardees, including General Dynamics-Ots, Inc., Electric Boat Corporation and General Dynamics Mission Systems, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,835,316	0.1%	Rank history: #75 in FY2021, #36 in FY2022, #44 in FY2023 and #99 in FY2024; up 24 since FY2024.
76	Direct Line, Inc. Top agencies DLA (Defense Logistics Agency)	$1,834,398	0.1%	Rank history: not on the FY2021–FY2024 lists; up 307 since FY2024.
77	H C Merchandisers, Inc. Top agencies DLA (Defense Logistics Agency)	$1,829,283	0.1%	Rank history: not on the FY2021 list, #62 in FY2022 and not on the FY2023–FY2024 lists; up 87 since FY2024.
78	Weimer Bearing & Transmission Inc. Top agencies DLA (Defense Logistics Agency)	$1,792,546	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
79	Dutch Valley Supply Co. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,767,885	0.1%	Rank history: #85 in FY2021 and not on the FY2022–FY2024 lists; up 95 since FY2024.
80	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$1,748,887	0.1%	Rank history: not on the FY2021–FY2024 lists; up 62 since FY2024.
81	Peerless Electronics Inc. Top agencies DLA (Defense Logistics Agency)	$1,715,588	0.1%	Rank history: not on the FY2021–FY2024 lists; up 38 since FY2024.
82	Eagle Equipment Corporation Top agencies DLA (Defense Logistics Agency)	$1,675,589	0.1%	Rank history: not on the FY2021 list, #73 in FY2022 and not on the FY2023–FY2024 lists; up 30 since FY2024.
83	Janels Industries Inc. Top agencies DLA (Defense Logistics Agency)	$1,622,710	0.1%	Rank history: #56 in FY2021, #46 in FY2022, #47 in FY2023 and #52 in FY2024; down 31 since FY2024.
84	Safe Boats International LLC Top agencies DHS (Department of Homeland Security)	$1,592,610	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
85	Statz Corp Top agencies DLA (Defense Logistics Agency)	$1,591,725	0.1%	Rank history: not on the FY2021–FY2023 lists and #58 in FY2024; down 27 since FY2024.
86	Aviarms Support Corp Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,562,570	0.1%	Rank history: not on the FY2021–FY2024 lists; up 82 since FY2024.
87	Meggitt (Orange County), Inc. Top agencies DLA (Defense Logistics Agency)	$1,562,355	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
88	Acme Products & Engineering Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,547,760	0.1%	Rank history: not on the FY2021–FY2024 lists; up 278 since FY2024.
89	Heico Aerospace Corporat 7 awardees, including Seal Dynamics LLC, DB Control and Thermal Structures, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,540,673	0.1%	Rank history: not on the FY2021 list, #29 in FY2022, not on the FY2023 list and #21 in FY2024; down 68 since FY2024.
90	RBC Aircraft Products Inc 3 awardees, including Sargent Aerospace & Defense, LLC, RBC Aerostructures LLC and RBC Bearings Incorporated Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,528,685	0.1%	Rank history: not on the FY2021–FY2024 lists; up 141 since FY2024.
91	VSE Aviation, Inc. Top agencies DLA (Defense Logistics Agency)	$1,490,278	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
92	American Vulkan Corporation Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$1,470,151	0.1%	Rank history: not on the FY2021–FY2023 lists and #89 in FY2024; down 3 since FY2024.
93	The Entwistle Company LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,450,791	0.1%	Rank history: not on the FY2021–FY2024 lists; up 156 since FY2024.
94	Andritz (USA) Inc. Through Andritz Hydro Corp Top agencies DOI (Department of the Interior)	$1,422,900	0.1%	Rank history: not on the FY2021–FY2023 lists and #81 in FY2024; down 13 since FY2024.
95	Scioteq LLC 10 awardees, including Electromech Technologies LLC, Arkwin Industries, Inc. and Tactair Fluid Controls Inc. Top agencies DLA (Defense Logistics Agency)	$1,417,356	0.1%	Rank history: not on the FY2021–FY2024 lists; up 102 since FY2024.
96	Brown Helicopter, Inc. Top agencies DLA (Defense Logistics Agency)	$1,412,671	0.1%	Rank history: not on the FY2021 list, #89 in FY2022 and not on the FY2023–FY2024 lists; up 22 since FY2024.
97	MTU Maintenance Berlin- Brandenburg GMBH Through Vericor Power Systems LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,392,108	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
98	The W.w. Williams Company, LLC Top agencies DHS (Department of Homeland Security)	$1,388,516	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
99	Unico Mechanical Corp. Top agencies DOI (Department of the Interior)	$1,347,874	0.1%	Rank history: not on the FY2021 list, #37 in FY2022, #75 in FY2023 and #38 in FY2024; down 61 since FY2024.
100	Superior-Lidgerwood-Mundy Corp Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$1,345,540	0.1%	Rank history: not on the FY2021–FY2024 lists; new.

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100 of 1,406 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 3336

Code	Net obligations	Largest contractor
33361 Engine, Turbine, and Power Transmission Equipment Manufacturing	$1,710,702,481	Cummins 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 $1.77 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 NAICS 3336 contractors in FY2025?

1. Cummins Inc. ($322M), 2. Allison Transmission Holdings Inc. ($280M), 3. Rolls-Royce Solutions America Inc. ($97.8M), 4. Welin Lambie Limited ($72.8M), 5. EOS Inc. ($71.2M), 6. Everllence Middle East and Africa L.l.c ($51.2M), 7. Oshkosh Corporation ($43.2M), 8. Honeywell International Inc. ($40M), 9. Am General LLC ($39.9M), 10. Chand, L.L.C. ($37.6M).

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