Top 100 Contractors in PSC J028: Maintenance, Repair and Rebuilding of Equipment: Engines, Turbines, and Components, Aug 2025–Jul 2026
Parent companies by net contract obligations Aug 1, 2025 – Jul 31, 2026 Code page on GovTribe
The latest 12 months. See the newest fiscal year's list: Top Contractors in PSC J028: Maintenance, Repair and Rebuilding of Equipment: Engines, Turbines, and Components, FY2025.
The top 10 won 96% of PSC J028 contract dollars from August 2025 through July 2026
Ranking facts
- Contract obligations
- $3,958,180,781 Net of deobligations, by contracts coded PSC J028
- Contractors
- 114 Parent companies with an obligation
- Largest contractor
- RTX Corporation $3.26 billion, 79.2% of obligations
- Data as of
Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)
Full ranking
| Rank | Contractor | Net obligations | Share | Trend |
|---|---|---|---|---|
| 1 | $3,256,493,400 | |||
| 2 |
Rolls-Royce Corporation
|
$427,873,713 | ||
| 3 |
ManTech International Corporation
|
$142,505,664 | ||
| 4 | $42,058,474 | |||
| 5 |
GM Defense LLC
Top agencies
|
$30,862,544 | ||
| 6 |
Hornet Acquisitionco LLC
|
$15,988,987 | ||
| 7 |
Tusas Motor Sanayii A.S.
Top agencies
|
$9,682,512 | ||
| 8 |
Asia Pacific Aerospace Pty. Ltd.
Top agencies
|
$7,698,066 | ||
| 9 |
US Turbine & Accessory LLC
Top agencies
|
$7,363,200 | ||
| 10 |
MTU Maintenance Berlin- Brandenburg GMBH
Top agencies
|
$5,845,517 | ||
| 11 | $5,167,360 | |||
| 12 | $4,954,637 | |||
| 13 |
Mint Turbines LLC
Top agencies
|
$4,390,005 | ||
| 14 |
Grimes Aerospace Company
Top agencies
|
$4,184,590 | ||
| 15 | $4,053,672 | |||
| 16 |
Tetrad Services, Inc.
Top agencies
|
$3,497,046 | ||
| 17 |
General Motors Company
Top agencies
|
$3,445,164 | ||
| 18 | $3,141,619 | |||
| 19 |
KBR Wyle Services LLC
Top agencies
|
$2,739,983 | ||
| 20 | $2,448,250 | |||
| 21 |
Florida Turbine Technologies, Inc.
Top agencies
|
$2,337,765 | ||
| 22 | $2,024,098 | |||
| 23 | $1,813,806 | |||
| 24 | $1,562,157 | |||
| 25 |
Woodward, Inc.
Top agencies
|
$1,275,143 | ||
| 26 |
Environmental Alternatives Inc
Top agencies
|
$1,063,690 | ||
| 27 |
Unico Mechanical Corp.
Top agencies
|
$1,001,594 | ||
| 28 |
Andritz (USA) Inc.
Top agencies
|
$910,014 | ||
| 29 |
Fincantieri Marine Systems North America, Inc.
Top agencies
|
$869,320 | ||
| 30 | $808,644 | |||
| 31 | $780,790 | |||
| 32 |
Acmt, Inc.
Top agencies
|
$765,870 | ||
| 33 | $655,893 | |||
| 34 |
Segers Aero Corp
Top agencies
|
$624,324 | ||
| 35 |
RJY Group LLC
Top agencies
|
$450,565 | ||
| 36 |
Ferrotherm, LLC
Top agencies
|
$445,622 | ||
| 37 |
Atec Inc.
Top agencies
|
$383,689 | ||
| 38 |
Guidehouse Inc.
|
$377,882 | ||
| 39 |
Windspeed Technologies, LLC
Top agencies
|
$348,775 | ||
| 40 |
Wagner Equipment Co
Top agencies
|
$346,323 | ||
| 41 | $319,338 | |||
| 42 | $317,221 | |||
| 43 | $309,009 | |||
| 44 |
Chromalloy SAN Diego Corp
Top agencies
|
$290,160 | ||
| 45 |
Schottel, Inc.
Top agencies
|
$267,661 | ||
| 46 |
Heico Corp
Top agencies
|
$227,485 | ||
| 47 |
Davison Marine L.l.c
Top agencies
|
$213,561 | ||
| 48 |
Endeavor & Trust Co.,Ltd
Top agencies
|
$213,411 | ||
| 49 |
Liburdi Turbine Services, LLC
Top agencies
|
$213,249 | ||
| 50 | $212,750 | |||
| 51 | $188,324 | |||
| 52 |
Triumph Group Inc.
Top agencies
|
$178,950 | ||
| 53 |
Mcginnis, Inc.
Top agencies
|
$123,970 | ||
| 54 |
Indusur Industrial Del SUR S.A.
Top agencies
|
$121,248 | ||
| 55 |
Guardian Systems LLC
Top agencies
|
$110,758 | ||
| 56 |
Melton Sales & Service
Top agencies
|
$106,526 | ||
| 57 |
Sytronics Inc.
Top agencies
|
$104,820 | ||
| 58 | $102,150 | |||
| 59 | $99,343 | |||
| 60 | $87,307 | |||
| 61 |
Miquin, L.L.C.
Top agencies
|
$87,063 | ||
| 62 | $86,047 | |||
| 63 | $85,050 | |||
| 64 |
L & S Electric Inc.
Top agencies
|
$84,000 | ||
| 65 | $72,649 | |||
| 66 | $64,646 | |||
| 67 |
Cannon Marine Partners, LLC
Top agencies
|
$61,160 | ||
| 68 | $60,176 | |||
| 69 |
Kalvio LLC
Top agencies
|
$59,392 | ||
| 70 | $58,815 | |||
| 71 | $58,567 | |||
| 72 |
Voith Hydro Inc
Top agencies
|
$55,320 | ||
| 73 | $54,102 | |||
| 74 |
Future Ford, Inc.
Top agencies
|
$51,307 | ||
| 75 | $50,052 | |||
| 76 |
Vision Research Group LLC
Top agencies
|
$49,800 | ||
| 77 |
VSE Corporation
Top agencies
|
$43,500 | ||
| 78 | $37,600 | |||
| 79 | $35,019 | |||
| 80 |
Dadet LLC
Top agencies
|
$35,000 | ||
| 81 |
ZOI Partners LLC
Top agencies
|
$34,500 | ||
| 82 |
Ohio Machinery Co
Top agencies
|
$33,612 | ||
| 83 |
American Hofmann Corp
Top agencies
|
$33,577 | ||
| 84 | $29,387 | |||
| 85 |
H & H Marine Services, Inc.
Top agencies
|
$27,243 | ||
| 86 |
Xenturis LLC
Top agencies
|
$25,660 | ||
| 87 |
FMB Flyboard LLC
Top agencies
|
$24,648 | ||
| 88 |
Empire Southwest, LLC
Top agencies
|
$20,606 | ||
| 89 |
Gigli Enterprises, Inc.
Top agencies
|
$19,950 | ||
| 90 |
Lithia of Missoula Inc
Top agencies
|
$18,697 | ||
| 91 | $18,650 | |||
| 92 | $17,540 | |||
| 93 |
Takano-Showten Co., Ltd.
Top agencies
|
$16,583 | ||
| 94 | $14,500 | |||
| 95 | $13,715 | |||
| 96 |
Tidewater, Inc.
Top agencies
|
$13,379 | ||
| 97 |
Wynne Ford Inc.
Top agencies
|
$10,655 | ||
| 98 | $9,963 | |||
| 99 | $8,813 | |||
| 100 |
Arnold Machinery Co
Top agencies
|
$8,040 |
Show 75 more
100 of 114 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 $4.11 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. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. 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.
- Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
- Rank changes compare with Aug 2024–Jul 2025. "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.
- 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 Aug 2025–Jul 2026?
1. RTX Corporation ($3.26B), 2. Rolls-Royce Corporation ($428M), 3. ManTech International Corporation ($143M), 4. Canadian Commercial Corporation ($42.1M), 5. GM Defense LLC ($30.9M), 6. Hornet Acquisitionco LLC ($16M), 7. Tusas Motor Sanayii A.S. ($9.68M), 8. Asia Pacific Aerospace Pty. Ltd. ($7.7M), 9. US Turbine & Accessory LLC ($7.36M), 10. MTU Maintenance Berlin- Brandenburg GMBH ($5.85M).
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