Top 100 Contractors in NAICS 335311: Power, Distribution, and Specialty Transformer Manufacturing, FY2025
Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe
The top 10 won 60% of FY2025 NAICS 335311 contract dollars
Ranking facts
- Contract obligations
- $329,902,200 Net of deobligations, by contracts coded NAICS 335311
- Contractors
- 739 Parent companies with an obligation
- Largest contractor
- Tepco Energy Partner, Incorporated $78.5 million, 22.9% of obligations
- Data as of
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 | $78,546,847 | |||
| 2 |
Yellowstone Electric Co
Top agencies
|
$29,876,694 | ||
| 3 | $24,655,271 | |||
| 4 | $18,352,681 | |||
| 5 | $15,408,113 | |||
| 6 | $9,650,104 | |||
| 7 | $9,470,756 | |||
| 8 | $6,690,038 | |||
| 9 |
Vincorion LLC
Top agencies
|
$6,406,231 | ||
| 10 | $5,382,498 | |||
| 11 |
Siemens Industry Inc.
Top agencies
|
$5,211,045 | ||
| 12 | $4,576,246 | |||
| 13 |
Asco Power Services Inc
|
$4,436,943 | ||
| 14 | $4,102,548 | |||
| 15 |
G & RK Consulting Associates LLC
Top agencies
|
$3,976,112 | ||
| 16 |
Florida State University
Top agencies
|
$3,884,999 | ||
| 17 |
Kipper Tool Company
Top agencies
|
$3,721,191 | ||
| 18 |
Jamaica Bearings Co., Inc.
Top agencies
|
$2,671,304 | ||
| 19 |
RPS Holdings, Inc.
Top agencies
|
$2,380,400 | ||
| 20 | $1,908,960 | |||
| 21 |
U.s.a. Spares Inc.
Top agencies
|
$1,802,805 | ||
| 22 | $1,700,000 | |||
| 23 |
Lex Products, LLC
Top agencies
|
$1,678,911 | ||
| 24 |
2Lyons Aerospace LLC
Top agencies
|
$1,658,326 | ||
| 25 | $1,438,982 | |||
| 26 | $1,292,847 | |||
| 27 | $1,257,689 | |||
| 28 |
Newvac LLC
|
$1,220,622 | ||
| 29 |
Lextm3 Systems, LLC
Top agencies
|
$1,219,859 | ||
| 30 |
BAE Systems
|
$1,174,211 | ||
| 31 | $1,157,753 | |||
| 32 | $1,139,731 | |||
| 33 | $1,139,321 | |||
| 34 | $1,129,581 | |||
| 35 |
U.s. Pioneer, L.L.C.
Top agencies
|
$1,128,592 | ||
| 36 |
RTX Corporation
|
$1,128,006 | ||
| 37 | $1,115,302 | |||
| 38 | $1,095,100 | |||
| 39 |
Tti, Inc.
Top agencies
|
$1,091,468 | ||
| 40 |
Mavich, LLC
Top agencies
|
$1,075,985 | ||
| 41 | $1,071,875 | |||
| 42 |
Quarterwave Corp.
Top agencies
|
$936,210 | ||
| 43 | $929,611 | |||
| 44 | $908,372 | |||
| 45 |
Measurement Specialties Inc.
Top agencies
|
$896,529 | ||
| 46 |
Berkshire Hathaway Inc.
Top agencies
|
$852,336 | ||
| 47 |
Gardner Zemke Company
Top agencies
|
$850,000 | ||
| 48 | $847,131 | |||
| 49 |
Teledyne Instruments Inc.
Top agencies
|
$809,906 | ||
| 50 | $764,863 | |||
| 51 |
Continuous Solutions Inc.
Top agencies
|
$750,000 | ||
| 52 |
R P M Supply Corporation
Top agencies
|
$705,580 | ||
| 53 | $703,167 | |||
| 54 | $701,972 | |||
| 55 | $673,293 | |||
| 56 |
Gen-Tech, LLC
Top agencies
|
$665,403 | ||
| 57 | $664,768 | |||
| 58 |
C E Niehoff & Co
Top agencies
|
$655,263 | ||
| 59 |
Scioteq LLC
Top agencies
|
$629,471 | ||
| 60 |
RCT Systems, Inc.
Top agencies
|
$628,187 | ||
| 61 |
Oshkosh Corporation
Top agencies
|
$621,559 | ||
| 62 |
Statz Corp
Top agencies
|
$610,811 | ||
| 63 |
Rev-Cap Company, Inc.
Top agencies
|
$609,875 | ||
| 64 |
Elemco Services, Inc.
Top agencies
|
$606,969 | ||
| 65 |
Carver Pump Company
Top agencies
|
$599,684 | ||
| 66 |
Herren Associates Inc.
Top agencies
|
$598,687 | ||
| 67 |
Kaplun Tool & Die, Inc.
Top agencies
|
$590,434 | ||
| 68 |
Janels Industries Inc.
Top agencies
|
$588,561 | ||
| 69 | $566,707 | |||
| 70 |
TJR Procurement, LLC
Top agencies
|
$565,042 | ||
| 71 |
Transaero, Inc.
Top agencies
|
$554,039 | ||
| 72 |
The L.c.doane Company
Top agencies
|
$545,713 | ||
| 73 |
Interconnect Wiring LLP
Top agencies
|
$524,295 | ||
| 74 |
Airborne Outfitters LLC
Top agencies
|
$523,953 | ||
| 75 |
SSS Clutch Co, Inc.
Top agencies
|
$523,403 | ||
| 76 | $522,723 | |||
| 77 | $490,415 | |||
| 78 | $485,885 | |||
| 79 |
Jgils, LLC
Top agencies
|
$483,081 | ||
| 80 |
3T Business Group LLC
Top agencies
|
$477,456 | ||
| 81 |
Marinette Marine Corporation
Top agencies
|
$474,710 | ||
| 82 |
Glenair, Inc.
Top agencies
|
$456,820 | ||
| 83 |
Kontron America Incorporated
Top agencies
|
$450,340 | ||
| 84 |
FBC Enterprises LLC
Top agencies
|
$440,232 | ||
| 85 |
American Devices, Inc.
Top agencies
|
$435,947 | ||
| 86 |
Chand, L.L.C.
Top agencies
|
$406,730 | ||
| 87 |
Metalloy Industries, Inc.
Top agencies
|
$406,028 | ||
| 88 | $391,891 | |||
| 89 |
Kirby Corporation
Top agencies
|
$373,492 | ||
| 90 |
RBC Aircraft Products Inc
Top agencies
|
$366,774 | ||
| 91 |
Stag Enterprise, Inc.
Top agencies
|
$353,797 | ||
| 92 | $349,441 | |||
| 93 | $345,096 | |||
| 94 |
Centron Industries Inc.
Top agencies
|
$344,040 | ||
| 95 | $342,467 | |||
| 96 | $342,000 | |||
| 97 |
Mary Helen Parkey
Top agencies
|
$338,103 | ||
| 98 | $333,377 | |||
| 99 | $313,352 | |||
| 100 | $312,328 |
Show 75 more
100 of 739 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 $343 million 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 335311 contractors in FY2025?
1. Tepco Energy Partner, Incorporated ($78.5M), 2. Yellowstone Electric Co ($29.9M), 3. The Chugoku Electric Power Company, Incorporated ($24.7M), 4. L3Harris Technologies, Inc. ($18.4M), 5. Leonardo S.p.A. ($15.4M), 6. Tohoku Electric Power Company Incorporated ($9.65M), 7. Kampi Components Co Inc. ($9.47M), 8. General Dynamics Corporation ($6.69M), 9. Vincorion LLC ($6.41M), 10. Phillip Cable Manufacturing, Inc. ($5.38M).
On GovTribe
Research every contractor on this list
- Every contract, task order and IDV they hold
- Their subsidiaries, teammates and competitors
- Open opportunities they're positioned for
- Alerts when they win new work