Top 100 Contractors in PSC J028: Maintenance, Repair and Rebuilding of Equipment: Engines, Turbines, and Components, FY2025

Name: Top 100 Contractors in PSC J028: Maintenance, Repair and Rebuilding of Equipment: Engines, Turbines, and Components, FY2025
Creator: GovTribe

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

The top 10 won 92% of FY2025 PSC J028 contract dollars

Contract obligations: $2,338,374,402 Net of deobligations, by contracts coded PSC J028
Contractors: 134 Parent companies with an obligation
Largest contractor: RTX Corporation $1.64 billion, 64.7% 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 5 awardees, including Pratt & Whitney Military Aftermarket Services, Inc., Rockwell Collins, Inc. and Hamilton Sundstrand Corporation Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security)	$1,643,851,119	64.7%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023 and #1 in FY2024; unchanged since FY2024.
2	Rolls-Royce Solutions America Inc. 2 awardees, including Rolls-Royce Corporation and Rolls-Royce North American Technologies Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$368,223,010	14.5%	Rank history: not on the FY2021–FY2023 lists and #2 in FY2024; unchanged since FY2024.
3	ManTech International Corporation 4 awardees, including Standard Aero (San Antonio) Inc., Aero Turbine, Inc. and Standard Aero (Alliance) Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$108,539,476	4.3%	Rank history: not on the FY2021–FY2023 lists and #5 in FY2024; up 2 since FY2024.
4	General Electric Company 6 awardees, including Paradigm Manchester Inc. and GE Renewables US LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$81,151,572	3.2%	Rank history: #5 in FY2021, #6 in FY2022, #5 in FY2023 and #6 in FY2024; up 2 since FY2024.
5	Canadian Commercial Corporation Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$33,459,203	1.3%	Rank history: #35 in FY2021, #15 in FY2022, not on the FY2023 list and #8 in FY2024; up 3 since FY2024.
6	GM Defense LLC Top agencies Army (Department of the Army)	$27,419,615	1.1%	Rank history: not on the FY2021–FY2023 lists and #23 in FY2024; up 17 since FY2024.
7	Tusas Motor Sanayii A.S. Top agencies Navy (Department of the Navy)	$26,275,189	1.0%	Rank history: not on the FY2021–FY2023 lists and #13 in FY2024; up 6 since FY2024.
8	Welin Lambie Limited Through Fairbanks Morse, LLC Top agencies Navy (Department of the Navy)	$18,569,860	0.7%	Rank history: not on the FY2021–FY2023 lists and #11 in FY2024; up 3 since FY2024.
9	RWG Repair & Overhauls USA Inc. Top agencies Navy (Department of the Navy)	$9,879,709	0.4%	Rank history: not on the FY2021–FY2023 lists and #14 in FY2024; up 5 since FY2024.
10	Mint Turbines LLC Top agencies USAF (Department of the Air Force)	$6,975,145	0.3%	Rank history: not on the FY2021–FY2023 lists and #26 in FY2024; up 16 since FY2024.
11	Ruag International Holding AG Through Ruag AG Top agencies Navy (Department of the Navy)	$4,291,510	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
12	Chromalloy SAN Diego Corp Through Chromalloy Component Services Inc. Top agencies USAF (Department of the Air Force)	$4,222,276	0.2%	Rank history: not on the FY2021 list, #25 in FY2022, #26 in FY2023 and #20 in FY2024; up 8 since FY2024.
13	AAR Government Services Inc. 2 awardees, including AAR Allen Services, Inc. Top agencies USAF (Department of the Air Force)	$3,983,650	0.2%	Rank history: not on the FY2021–FY2023 lists and #24 in FY2024; up 11 since FY2024.
14	Ruag AG Top agencies Navy (Department of the Navy)	$3,380,084	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
15	MTU Maintenance Berlin- Brandenburg GMBH 2 awardees, including Vericor Power Systems LLC Top agencies Navy (Department of the Navy)	$1,869,575	0.1%	Rank history: not on the FY2021–FY2023 lists and #16 in FY2024; up 1 since FY2024.
16	Pacific Power Group, LLC Top agencies DHS (Department of Homeland Security)	$1,869,511	0.1%	Rank history: not on the FY2021–FY2023 lists and #35 in FY2024; up 19 since FY2024.
17	Standardaero Aviation Holdings, Inc. 2 awardees, including Standard Aero Limited and E B Airfoils, LLC Top agencies DOS (Department of State) USAF (Department of the Air Force)	$1,806,480	0.1%	Rank history: #4 in FY2021, #4 in FY2022, #4 in FY2023 and #9 in FY2024; down 8 since FY2024.
18	Aero Turbine, Inc. Top agencies USAF (Department of the Air Force)	$1,701,580	0.1%	Rank history: #10 in FY2021, #5 in FY2022, #3 in FY2023 and #4 in FY2024; down 14 since FY2024.
19	Siemens Energy Inc. Top agencies HHS (Department of Health and Human Services)	$1,477,695	0.1%	Rank history: not on the FY2021–FY2023 lists and #22 in FY2024; up 3 since FY2024.
20	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 #32 in FY2024; up 12 since FY2024.
21	Woodward Inc. 2 awardees, including Woodward Fst, Inc. Top agencies USAF (Department of the Air Force)	$1,386,691	0.1%	Rank history: not on the FY2021–FY2023 lists and #47 in FY2024; up 26 since FY2024.
22	Unico Mechanical Corp. Top agencies DOI (Department of the Interior)	$1,347,874	0.1%	Rank history: not on the FY2021 list, #19 in FY2022, #22 in FY2023 and #15 in FY2024; down 7 since FY2024.
23	Penobscot Support Services, LLC Top agencies Army (Department of the Army)	$1,203,498	<0.1%	Rank history: #43 in FY2021, #29 in FY2022, #19 in FY2023 and #37 in FY2024; up 14 since FY2024.
24	Standardaero Business Aviation Services, LLC Top agencies NASA (National Aeronautics and Space Administration)	$1,200,000	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
25	Environmental Alternatives Inc Top agencies Navy (Department of the Navy)	$1,038,835	<0.1%	Rank history: not on the FY2021–FY2023 lists and #21 in FY2024; down 4 since FY2024.
26	Professional Contract Services, Inc. Top agencies Navy (Department of the Navy)	$971,208	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
27	Bedek Aviation Group Israel Aerospace Industries Ltd Top agencies USAF (Department of the Air Force)	$890,147	<0.1%	Rank history: not on the FY2021–FY2023 lists and #41 in FY2024; up 14 since FY2024.
28	Barnes Group Inc. Top agencies USAF (Department of the Air Force)	$810,450	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
29	Component Repair Technologies, Inc. Top agencies Navy (Department of the Navy)	$762,379	<0.1%	Rank history: not on the FY2021 list, #26 in FY2022, #24 in FY2023 and #34 in FY2024; up 5 since FY2024.
30	MTP Drivetrain Services, L.L.C. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$628,493	<0.1%	Rank history: not on the FY2021–FY2023 lists and #54 in FY2024; up 24 since FY2024.
31	Honeywell International Inc. Top agencies USAF (Department of the Air Force)	$542,383	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
32	R.s.l. Electronics Limited Top agencies USAF (Department of the Air Force)	$507,715	<0.1%	Rank history: #29 in FY2021, #33 in FY2022, not on the FY2023 list and #36 in FY2024; up 4 since FY2024.
33	Grey Snow Professional Services LLC Top agencies DOJ (Department of Justice)	$489,641	<0.1%	Rank history: not on the FY2021–FY2023 lists and #60 in FY2024; up 27 since FY2024.
34	RJY Group LLC Top agencies VA (Department of Veterans Affairs)	$450,565	<0.1%	Rank history: not on the FY2021–FY2022 lists, #41 in FY2023 and not on the FY2024 list; returned.
35	Pas Technologies Inc. Top agencies USAF (Department of the Air Force)	$429,564	<0.1%	Rank history: not on the FY2021–FY2023 lists and #38 in FY2024; up 3 since FY2024.
36	R O B E R T B O S C H S T I F T U N G Gesellschaft MIT Beschrankter Haftung Through Bosch Rexroth Corporation Top agencies Army (Department of the Army) Navy (Department of the Navy)	$339,872	<0.1%	Rank history: not on the FY2021–FY2023 lists and #67 in FY2024; up 31 since FY2024.
37	Guidehouse Inc. Through Chromalloy Gas Turbine LLC Top agencies Navy (Department of the Navy)	$336,544	<0.1%	Rank history: not on the FY2021–FY2023 lists and #81 in FY2024; up 44 since FY2024.
38	Davison Marine L.l.c Top agencies Army (Department of the Army)	$280,731	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
39	Atec Inc. Top agencies USAF (Department of the Air Force)	$267,167	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
40	Genserve LLC Top agencies VA (Department of Veterans Affairs) DOT (Department of Transportation)	$258,534	<0.1%	Rank history: not on the FY2021–FY2023 lists and #58 in FY2024; up 18 since FY2024.
41	Grand Slam Diesel Services LLC Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy)	$257,603	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 99 since FY2024.
42	American Diesel Power Products, Inc. Top agencies Army (Department of the Army)	$235,952	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
43	Tominaga & Co, Ltd. Top agencies Navy (Department of the Navy)	$222,203	<0.1%	Rank history: not on the FY2021–FY2023 lists and #100 in FY2024; up 57 since FY2024.
44	Goff Diesel Injection, Inc. Top agencies USAF (Department of the Air Force)	$218,290	<0.1%	Rank history: #79 in FY2021, #95 in FY2022 and not on the FY2023–FY2024 lists; up 79 since FY2024.
45	Wagner Equipment Co 2 awardees Top agencies DOI (Department of the Interior)	$206,919	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 64 since FY2024.
46	Melton Sales & Service Top agencies Army (Department of the Army)	$179,604	<0.1%	Rank history: #39 in FY2021, #42 in FY2022, not on the FY2023 list and #53 in FY2024; up 7 since FY2024.
47	The Champion Company Top agencies Navy (Department of the Navy)	$168,000	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
48	JB Cook Auto Machine Co LLC Top agencies Army (Department of the Army)	$165,810	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
49	H & H Marine Services, Inc. Top agencies Army (Department of the Army)	$159,680	<0.1%	Rank history: #59 in FY2021, #27 in FY2022, #36 in FY2023 and not on the FY2024 list; returned.
50	Liburdi Turbine Services, LLC Top agencies Navy (Department of the Navy)	$155,284	<0.1%	Rank history: not on the FY2021–FY2023 lists and #64 in FY2024; up 14 since FY2024.
51	Stratasys, Inc. Top agencies Navy (Department of the Navy)	$121,845	<0.1%	Rank history: not on the FY2021–FY2023 lists and #63 in FY2024; up 12 since FY2024.
52	MGX Equipment Services LLC Top agencies USAF (Department of the Air Force)	$102,587	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
53	Sytronics Inc. Top agencies DHS (Department of Homeland Security)	$101,114	<0.1%	Rank history: not on the FY2021 list, #12 in FY2022, #47 in FY2023 and #46 in FY2024; down 7 since FY2024.
54	Stowers Machinery Corp Top agencies VA (Department of Veterans Affairs)	$100,677	<0.1%	Rank history: not on the FY2021–FY2022 lists, #62 in FY2023 and #65 in FY2024; up 11 since FY2024.
55	Marinette Marine Corporation Through Fincantieri Marine Systems North America, Inc. Top agencies Navy (Department of the Navy)	$99,834	<0.1%	Rank history: not on the FY2021–FY2023 lists and #44 in FY2024; down 11 since FY2024.
56	Elite Veteran Solutions, LLC Top agencies Navy (Department of the Navy)	$99,343	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
57	Allison Service Korea Co.,Ltd Top agencies Army (Department of the Army)	$98,709	<0.1%	Rank history: #91 in FY2021, #55 in FY2022, #53 in FY2023 and #70 in FY2024; up 13 since FY2024.
58	Alimak Group USA Inc. Top agencies DOT (Department of Transportation)	$94,401	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
59	Miquin, L.L.C. Top agencies Navy (Department of the Navy)	$87,063	<0.1%	Rank history: not on the FY2021–FY2023 lists and #31 in FY2024; down 28 since FY2024.
60	Integrated Power Services LLC Top agencies USAF (Department of the Air Force)	$86,047	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
61	L & S Electric Inc. Top agencies Army (Department of the Army)	$84,000	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
62	Nippon Caterpillar Limited Liability Company Top agencies Navy (Department of the Navy)	$79,555	<0.1%	Rank history: not on the FY2021–FY2023 lists and #49 in FY2024; down 13 since FY2024.
63	Indusur Industrial Del SUR S.A. Top agencies DOS (Department of State)	$72,849	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
64	Emergency Vehicle Specialist, Inc. Top agencies WHS (DOD Washington Headquarters Service)	$67,501	<0.1%	Rank history: not on the FY2021–FY2022 lists, #61 in FY2023 and #73 in FY2024; up 9 since FY2024.
65	Windspeed Technologies, LLC Top agencies Navy (Department of the Navy)	$67,134	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
66	Caterpillar Inc. Through Solar Turbines Incorporated Top agencies USDA (Department of Agriculture)	$66,712	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
67	Sherwood Avionics and Accessories, Inc. Top agencies Army (Department of the Army)	$64,410	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
68	E-Finity Distributed Generation LLC Top agencies USAF (Department of the Air Force)	$60,176	<0.1%	Rank history: #85 in FY2021, #60 in FY2022, #75 in FY2023 and #82 in FY2024; up 14 since FY2024.
69	Vergent Power Solutions LLC Top agencies VA (Department of Veterans Affairs)	$59,880	<0.1%	Rank history: #51 in FY2021, #45 in FY2022, #37 in FY2023 and #55 in FY2024; down 14 since FY2024.
70	Kalvio LLC Top agencies Army (Department of the Army)	$59,392	<0.1%	Rank history: #80 in FY2021, #73 in FY2022, #68 in FY2023 and #76 in FY2024; up 6 since FY2024.
71	Voith Hydro Inc Top agencies Army (Department of the Army)	$58,691	<0.1%	Rank history: not on the FY2021–FY2023 lists and #45 in FY2024; down 26 since FY2024.
72	Ohio Machinery Co 2 awardees Top agencies VA (Department of Veterans Affairs)	$56,888	<0.1%	Rank history: not on the FY2021–FY2022 lists, #71 in FY2023 and #79 in FY2024; up 7 since FY2024.
73	FMB Flyboard LLC Top agencies VA (Department of Veterans Affairs)	$49,856	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 33 since FY2024.
74	Aml-American Made Logistics Top agencies VA (Department of Veterans Affairs)	$49,410	<0.1%	Rank history: not on the FY2021–FY2023 lists and #18 in FY2024; down 56 since FY2024.
75	Aurora Energy Services Inc. Top agencies USAF (Department of the Air Force)	$49,405	<0.1%	Rank history: not on the FY2021–FY2023 lists and #78 in FY2024; up 3 since FY2024.
76	Genuine Parts Company Through Motion Industries, Inc. Top agencies USAF (Department of the Air Force)	$49,193	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
77	Future Ford, Inc. Top agencies USAF (Department of the Air Force)	$46,950	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
78	Alithos Anesti LLC Top agencies Navy (Department of the Navy)	$43,545	<0.1%	Rank history: not on the FY2021 list, #76 in FY2022, #72 in FY2023 and not on the FY2024 list; returned.
79	Cummins Inc. Top agencies Army (Department of the Army)	$42,294	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
80	Sterileco LLC Top agencies Army (Department of the Army)	$38,669	<0.1%	Rank history: not on the FY2021–FY2023 lists and #71 in FY2024; down 9 since FY2024.
81	Mobile Techs LLC Top agencies VA (Department of Veterans Affairs)	$36,536	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
82	Generator Systems, LLC Top agencies VA (Department of Veterans Affairs)	$35,019	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
83	Dadet LLC Top agencies DOS (Department of State)	$35,000	<0.1%	Rank history: not on the FY2021–FY2022 lists, #89 in FY2023 and #92 in FY2024; up 9 since FY2024.
84	Illinois Tool Works Inc. Top agencies Navy (Department of the Navy)	$34,324	<0.1%	Rank history: not on the FY2021–FY2022 lists, #81 in FY2023 and not on the FY2024 list; returned.
85	Takano-Showten Co., Ltd. Top agencies Army (Department of the Army)	$28,744	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 29 since FY2024.
86	Iris Enterprise Solutions, LLC Top agencies Navy (Department of the Navy)	$27,741	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
87	Continuous Power Solutions, LLC Top agencies DOS (Department of State)	$26,592	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
88	Xenturis LLC Top agencies USAF (Department of the Air Force)	$25,660	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
89	BC Customs LLC Top agencies USAF (Department of the Air Force)	$24,880	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
90	Drake Controls West LLC Top agencies Navy (Department of the Navy)	$24,596	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
91	Sumitomo Heavy Industries, Ltd Top agencies Navy (Department of the Navy)	$24,373	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
92	Gibbs International Inc. Top agencies USDA (Department of Agriculture)	$24,094	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
93	C.r.w. Mechanical, Inc. Top agencies VA (Department of Veterans Affairs)	$21,233	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
94	Ramonni, Inc. Top agencies USDA (Department of Agriculture)	$19,025	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
95	Mergent Global Services Limited Liability Company Top agencies DOS (Department of State)	$18,650	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
96	The W.w. Williams Company, LLC Top agencies DOJ (Department of Justice)	$15,162	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
97	Primary Integration - Encorp LLC Top agencies DOJ (Department of Justice)	$15,000	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
98	Veteran Electrical Power Systems, Inc. Top agencies VA (Department of Veterans Affairs)	$14,622	<0.1%	Rank history: #96 in FY2021, #85 in FY2022, #95 in FY2023 and #97 in FY2024; down 1 since FY2024.
99	Jasper Engine Exchange, Inc. Top agencies USAF (Department of the Air Force)	$14,344	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
100	Contractor's Connection, LLC Top agencies VA (Department of Veterans Affairs)	$13,715	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.

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100 of 134 contractors listed here. See the rest on GovTribe.

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 $2.54 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 J028 contractors in FY2025?

1. RTX Corporation ($1.64B), 2. Rolls-Royce Solutions America Inc. ($368M), 3. ManTech International Corporation ($109M), 4. General Electric Company ($81.2M), 5. Canadian Commercial Corporation ($33.5M), 6. GM Defense LLC ($27.4M), 7. Tusas Motor Sanayii A.S. ($26.3M), 8. Welin Lambie Limited ($18.6M), 9. RWG Repair & Overhauls USA Inc. ($9.88M), 10. Mint Turbines LLC ($6.98M).

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