Company lists · Data refreshed November 2026

Top 25 Electrical transformer rewinding services based in the United States

RevenueBase identified 347 company matches for electrical transformer rewinding services associated with the United States as of November 2026 and tracks 7,352 professional contacts across them, including 3,186 with verified work emails. Houston is the largest hub.

This list covers company matches for electrical transformer rewinding services associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
347Companies
7,352Contacts tracked
3,186Verified emails
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The 25 largest electrical transformer rewinding services based in the United States

Ranked by team size
Top 25 of 347 company matches for electrical transformer rewinding services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchIrving, OK, United StatesHQ recorded Nov 6, 20261,001-5,0001,324 contacts →

Exact match

“Shermco Industries is a provider of safe, reliable testing, repair, professional training, electrical outage planning, maintenance and analysis of rotating apparatus and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchGreer, ID, United StatesHQ recorded Nov 6, 2026201-500311 contacts →

Exact match

“Maddox serves the commercial, industrial, utility, and renewables segments of the transformer market.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchGreenville, FL, United StatesHQ recorded Nov 6, 2026501-1,000308 contacts →

Exact match

“Excellence in creating innovative solutions for the supply, control and use of energy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchTallmadge, OH, United StatesHQ recorded Nov 6, 2026201-500219 contacts →

Exact match

“SDMyers is the industry leader in transformer and substation maintenance and electric power system reliability.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchCanonsburg, NC, United StatesHQ recorded Nov 6, 2026201-500192 contacts →

Exact match

“Pennsylvania Transformer Technology LLC (PTT) is a US-owned, industry leading manufacturer of a wide range of sizes and types of power transformers for the investor-owned…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchBirmingham, GA, United StatesHQ recorded Nov 6, 2026201-500191 contacts →

Exact match

“Jay Industrial Repair is an industrial service and manufacturing business focused on quality on-time solutions in electric motor and controls sales and services, and in-field…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSolomon, TN, United StatesHQ recorded Nov 6, 2026501-1,000165 contacts →

Exact match

“Solomon Corporation buys, sells, repairs, recycles, and disposes of transformers, regulators and reclosers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchColumbus, OH, United StatesHQ recorded Nov 6, 2026501-1,000164 contacts →

Exact match

“Leading independent manufacturer of generator stator and rotor windings, including inner-water and inner-hydrogen stator bars, roebel bars and diamond coils.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchOklahoma City, TN, United StatesHQ recorded Nov 6, 2026201-500158 contacts →

Exact match

“In 2025, Southwest Electric Co.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchLake Mary, FL, United StatesHQ recorded Nov 6, 2026201-500154 contacts →

Exact match

“At JST Power Equipment, we pride ourselves on delivering world-class transformer and electrical equipment solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchMckinney, AZ, United StatesHQ recorded Nov 6, 2026201-500142 contacts →

Exact match

“Emerald Transformer is the premier national single-source solution for oil-filled electrical equipment with services including repair, re-manufacturing, field technical services…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchChesapeake, VA, United StatesHQ recorded Nov 6, 2026201-500141 contacts →

Exact match

“Established in 1960, Electric Motor and Contracting remains one of the largest independently owned electric motor and pump repair shops in the U.S.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchVernon, CA, United StatesHQ recorded Nov 6, 2026201-500131 contacts →

Exact match

“MGM Transformers is now part of Forgent Power Solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchLubbock, TX, United StatesHQ recorded Nov 6, 2026201-500128 contacts →

Exact match

“Founded on April 1, 1950, Brandon and Clark, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchIndianapolis, OH, United StatesHQ recorded Nov 6, 2026201-500110 contacts →

Exact match

“For over half a century, Horner Industrial Group has been helping to power your business with industry leading service, quality and value by providing excellence in electrical…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchPerrysburg, OH, United StatesHQ recorded Nov 6, 202651-20077 contacts →

Exact match

“Kiemle-Hankins is a leading industrial service and repair company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMassillon, AL, United StatesHQ recorded Nov 6, 2026201-50070 contacts →

Exact match

“Magnetech is an ISO-quality provider of electrical-mechanical industrial services, including testing, repair, rewind and refurbishment of ac/dc motors and generators…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBaton Rouge, LA, United StatesHQ recorded Nov 6, 202651-20065 contacts →

Exact match

“We service, maintain, repair, and upgrade all manufacturers' electrical equipment, including switchgear, circuit breakers, transformers, and starters.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchLivonia, MI, United StatesHQ recorded Nov 6, 202651-20065 contacts →

Exact match

“When industrial equipment fails, every minute of downtime costs you money.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchAltamonte Springs, FL, United StatesHQ recorded Nov 6, 2026201-50058 contacts →

Exact match

“North American Substation Services (NASS) is a nationally-recognized expert specializing in transformer and substation apparatus installation, services, and repair.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchRichmond, IL, United StatesHQ recorded Nov 6, 202651-20053 contacts →

Exact match

“75 Years of Engineering Excellence in the Delivered Worldwide Olsun Electrics is the industry’s most trusted partner for custom dry-type transformers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchShreveport, TX, United StatesHQ recorded Nov 6, 202651-20048 contacts →

Exact match

“Etheredge Industrial Services has been serving the industrial market since February 1986.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchJordan, MN, United StatesHQ recorded Nov 6, 202651-20043 contacts →

Exact match

“JORDAN TRANSFORMER's engineering and production team has 50 years of experience working for utilities and industrial customers on virtually all types of power transformers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchSt Francisville, LA, United StatesHQ recorded Nov 6, 202651-20041 contacts →

Exact match

“Red Stick Armature has been in business since 1959, making us the oldest, locally-owned, complete electric motor repair and service shop in the state of Louisiana.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchCharlotte, NC, United StatesHQ recorded Nov 6, 202611-5040 contacts →

Exact match

“A&W Electric is driven to provide growth opportunities for our associates and to create value for our clients in the industrial, commercial, and utility sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 347 electrical transformer rewinding services based in the United States

See the full list, filter by size, metro and specialty, and access 3,186 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Electrical transformer rewinding services based in the United States at a glance

As of Nov 6, 2026
43.3%Verified-email coverage
21.2Average contacts per company
11-50Median size (employees)
3.5%Largest-city concentration · Houston
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
134
11-50
121
51-200
65
201-500
17
501-1,000
6
1,001-5,000
2

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 347 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “electrical transformer rewinding services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 3,186 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “electrical transformer rewinding services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many electrical transformer rewinding services are there based in the United States?

RevenueBase identified 347 company matches for electrical transformer rewinding services associated with the United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Shermco Industries tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most electrical transformer rewinding services?

Houston leads with 12 company records, followed by Louisville (5) and Baton Rouge (4).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 3,186 professional contacts with verified work emails tracked across these 347 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.