Company lists · Data refreshed October 2026

Top 25 Regulating transformers suppliers based in the United States

RevenueBase identified 186 company matches for regulating transformers suppliers associated with the United States as of October 2026 and tracks 6,364 professional contacts across them, including 1,894 with verified work emails. Houston is the largest hub.

This list covers company matches for regulating transformers suppliers 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 October 29, 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 Oct 29, 2026 How this list was built
186Companies
6,364Contacts tracked
1,894Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest regulating transformers suppliers based in the United States

Ranked by team size
Top 25 of 186 company matches for regulating transformers suppliers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 29, 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 matchWarrendale, PA, United StatesHQ recorded Oct 29, 20261,001-5,0001,014 contacts →

Exact match

“Mitsubishi Electric Power Products, Inc.(MEPPI) is a leading U.S.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
2Exact matchEllisville, MS, United StatesHQ recorded Oct 29, 20261,001-5,000981 contacts →

Exact match

“Howard Industries is the leading manufacturer of liquid-filled distribution transformers for the utility and commercial/industrial markets.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
3Exact matchGreer, SC, United StatesHQ recorded Oct 29, 2026201-500306 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
4Exact matchTallmadge, OH, United StatesHQ recorded Oct 29, 2026201-500200 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
5Exact matchCanonsburg, PA, United StatesHQ recorded Oct 29, 2026201-500190 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 · Oct 29, 2026 · View company records in RevenueBase
6Exact matchBordentown, NJ, United StatesHQ recorded Oct 29, 2026201-500180 contacts →

Exact match

“NWL Inc.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
7Exact matchAthens, GA, United StatesHQ recorded Oct 29, 20261,001-5,000172 contacts →

Exact match

“Power Partners is a leading manufacturer of distribution transformers in North America.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
8Exact matchSolomon, KS, United StatesHQ recorded Oct 29, 2026501-1,000163 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
9Exact matchOklahoma City, OK, United StatesHQ recorded Oct 29, 2026201-500151 contacts →

Exact match

“In 2025, Southwest Electric Co.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
10Exact matchLake Mary, FL, United StatesHQ recorded Oct 29, 2026201-500149 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 · Oct 29, 2026 · View company records in RevenueBase
11Exact matchMemphis, TN, United StatesHQ recorded Oct 29, 2026201-500130 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
12Exact matchVernon, CA, United StatesHQ recorded Oct 29, 2026201-500128 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
13Exact matchHighland, IL, United StatesHQ recorded Oct 29, 2026501-1,000112 contacts →

Exact match

“In 2025, Basler Electric Company was acquired by Littelfuse, Inc, a global, diversified industrial technology manufacturing company dedicated to creating a sustainable, connected…”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
14Exact matchWaco, TX, United StatesHQ recorded Oct 29, 202651-20085 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
15Exact matchTorrance, CA, United StatesHQ recorded Oct 29, 20261,001-5,00085 contacts →

Exact match

“Welcome to Fortune Electric, a world class power transformer and switchgear manufacturer since 1969.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
16Exact matchAzusa, CA, United StatesHQ recorded Oct 29, 2026201-50065 contacts →

Exact match

“Lindsey Systems is recognized globally as an innovator in the electric power industry.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
17Exact matchRichmond, IL, United StatesHQ recorded Oct 29, 202651-20052 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 · Oct 29, 2026 · View company records in RevenueBase
18Exact matchPasadena, TX, United StatesHQ recorded Oct 29, 2026501-1,00049 contacts →

Exact match

“Spike Electric Controls is a U.S-based electrical engineering and manufacturing company specializing in medium-voltage switchgear, gas-insulated switchgear (GIS), medium-voltage…”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
19Exact matchBurlington, NC, United StatesHQ recorded Oct 29, 202651-20049 contacts →

Exact match

“Southland Electrical Supply, An IPS Company, is a world class leader in Power Distribution and Low Voltage Motor Control.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
20Exact matchLavonia, GA, United StatesHQ recorded Oct 29, 2026201-50048 contacts →

Exact match

“Our mission is to maintain profitability and growth through customer satisfaction, industry leading quality and efficient product development and manufacturing.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
21Exact matchLake Park, FL, United StatesHQ recorded Oct 29, 202651-20047 contacts →

Exact match

“We collaborate with customers to deliver cost-effective, well-developed commercial transformer and industrial transformer solutions that meet unique specifications.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
22Exact matchRiviera Beach, FL, United StatesHQ recorded Oct 29, 202651-20047 contacts →

Exact match

“K&M Electric Supply was founded in 1972 by Ken Mooney and Ron Kaylor.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
23Exact matchOshkosh, WI, United StatesHQ recorded Oct 29, 202651-20046 contacts →

Exact match

“SNC Manufacturing Co, Inc.”

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase
24Exact matchJordan, MN, United StatesHQ recorded Oct 29, 202651-20042 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 · Oct 29, 2026 · View company records in RevenueBase
25Exact matchRoanoke, VA, United StatesHQ recorded Oct 29, 202651-20036 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase

Showing 25 of 186 regulating transformers suppliers based in the United States

See the full list, filter by size, metro and specialty, and access 1,894 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Regulating transformers suppliers based in the United States at a glance

As of Oct 29, 2026
29.8%Verified-email coverage
34.2Average contacts per company
11-50Median size (employees)
4.3%Largest-city concentration · Houston
Oct 29, 2026Page data refreshed

Companies by employee count

1-10
59
11-50
59
51-200
38
201-500
16
501-1,000
8
1,001-5,000
5
5,001-10,000
1

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 186 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 “regulating transformers suppliers” 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 1,894 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 October 29, 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 “regulating transformers suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many regulating transformers suppliers are there based in the United States?

RevenueBase identified 186 company matches for regulating transformers suppliers associated with the United States as of October 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?

Mitsubishi Electric Power Products, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most regulating transformers suppliers?

Houston leads with 8 company records, followed by Grand Haven (3) and New York (3).

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 1,894 professional contacts with verified work emails tracked across these 186 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 October 29, 2026.

Ready to reach these companies? Verified emails and direct dials for all 186 regulating transformers suppliers based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

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.