Company lists · Data refreshed September 2026

Top 25 Furnace transformer manufacturers based in the United States

Name: Furnace transformer manufacturers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 214 companies tracked

RevenueBase identified 214 company matches for furnace transformer manufacturers associated with the United States as of September 2026 and tracks 6,765 professional contacts across them, including 2,699 with verified work emails. Houston is the largest hub.

This list covers company matches for furnace transformer manufacturers 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 September 30, 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 Sep 30, 2026 How this list was built

214Companies

6,765Contacts tracked

2,699Verified emails

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The 25 largest furnace transformer manufacturers based in the United States

Ranked by team size

Top 25 of 214 company matches for furnace transformer manufacturers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 30, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Thermon	Exact match	Austin, TX, United StatesHQ recorded Sep 30, 2026	1,001-5,000	901 contacts →
	Exact match “Industrial Process Heating Solutions Through its global network, Thermon provides safe, reliable and innovative mission critical industrial process heating solutions.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
2	Virginia Transformer Corp	Exact match	Roanoke, VA, United StatesHQ recorded Sep 30, 2026	5,001-10,000	792 contacts →
	Exact match “Virginia Transformer is an engineering company that manufactures transformers.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
3	Inductotherm Group	Exact match	Rancocas, NJ, United StatesHQ recorded Sep 30, 2026	1,001-5,000	375 contacts →
	Exact match “WE BRING HEAT TO METAL.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
4	Maddox Industrial Transformer	Exact match	Greer, SC, United StatesHQ recorded Sep 30, 2026	201-500	286 contacts →
	Exact match “Maddox serves the commercial, industrial, utility, and renewables segments of the transformer market.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
5	Ajaxtocco Magnethermic	Exact match	Warren, OH, United StatesHQ recorded Sep 30, 2026	201-500	234 contacts →
	Exact match “Ajax TOCCO Magnethermic® designs and manufactures world class induction heating and melting equipment for various industries and applications throughout the world.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
6	HD Hyundai Power Transformers Usa, INC	Exact match	Montgomery, AL, United StatesHQ recorded Sep 30, 2026	201-500	202 contacts →
	Exact match “HD Hyundai Power Transformers USA, Inc, a subsidiary of HD Hyundai Electric Systems, stands as a premier transformer manufacturer located in Montgomery, Alabama.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
7	NWL	Exact match	Bordentown, NJ, United StatesHQ recorded Sep 30, 2026	201-500	177 contacts →
	Exact match “NWL Inc.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
8	Pennsylvania Transformer Technology LLC PTT	Exact match	Canonsburg, PA, United StatesHQ recorded Sep 30, 2026	201-500	169 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 · Sep 30, 2026 · View company records in RevenueBase
9	MGM Transformers	Exact match	Vernon, CA, United StatesHQ recorded Sep 30, 2026	201-500	147 contacts →
	Exact match “MGM Transformers is now part of Forgent Power Solutions.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
10	Southwest Electric CO	Exact match	Oklahoma City, OK, United StatesHQ recorded Sep 30, 2026	201-500	145 contacts →
	Exact match “In 2025, Southwest Electric Co.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
11	JST Power Equipment	Exact match	Lake Mary, FL, United StatesHQ recorded Sep 30, 2026	201-500	134 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 · Sep 30, 2026 · View company records in RevenueBase
12	TUTCO	Exact match	Cookeville, TN, United StatesHQ recorded Sep 30, 2026	1,001-5,000	119 contacts →
	Exact match “Founded in 1938, Tutco has quickly grown into a global leader in the heating component industry.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
13	Consarc Corporation	Exact match	Rancocas, NJ, United StatesHQ recorded Sep 30, 2026	51-200	114 contacts →
	Exact match “We have considerable experience in supplying custom-built equipment to suit highly specialized or individual requirements, enabling us to provide a comprehensive service and…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
14	Roman Manufacturing	Exact match	Grand Rapids, MI, United StatesHQ recorded Sep 30, 2026	201-500	99 contacts →
	Exact match “RoMan Manufacturing was founded in 1980 in Grand Rapids, Michigan, and specializes in small, lightweight Water-Cooled AC Transformers, DC Power Supplies, MFDC (Medium-Frequency)…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
15	Ambrell Induction Heating Solutions	Exact match	Rochester, NY, United StatesHQ recorded Sep 30, 2026	51-200	92 contacts →
	Exact match “Leading manufacturer of induction heating systems and an InTest Company.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
16	Afc-Holcroft	Exact match	Wixom, MI, United StatesHQ recorded Sep 30, 2026	51-200	86 contacts →
	Exact match “Global supplier of industrial Heat Treating Equipment, serving a variety of markets worldwide.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
17	Vantran Transformers	Exact match	Waco, TX, United StatesHQ recorded Sep 30, 2026	51-200	86 contacts →
	Exact match “VanTran Transformers is now part of Forgent Power Solutions.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
18	Inductoheat	Exact match	Madison Heights, MI, United StatesHQ recorded Sep 30, 2026	201-500	84 contacts →
	Exact match “We design, build and repair high-quality general purpose, turn-key, and fully automated induction heating equipment.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
19	Consolidated Engineering Company	Exact match	Kennesaw, GA, United StatesHQ recorded Sep 30, 2026	51-200	75 contacts →
	Exact match “Welcome to CEC!” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
20	Gillespie & Powers, INC	Exact match	St. Louis, MO, United StatesHQ recorded Sep 30, 2026	51-200	68 contacts →
	Exact match “INDUSTRIAL FURNACES Aluminum Furnace Experts.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
21	Pillar Induction	Exact match	Brookfield, WI, United StatesHQ recorded Sep 30, 2026	51-200	60 contacts →
	Exact match “Pillar is a leading global supplier of induction heating and melting equipment.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
22	Abbott Furnace Company Industrial Furnace Design, Manufacturing, Installation, And Service	Exact match	St. Marys, PA, United StatesHQ recorded Sep 30, 2026	51-200	54 contacts →
	Exact match “Abbott Furnace is an industrial furnace manufacturer with over 40 years of experience designing and producing some of the industry’s most reliable and high performing industrial…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
23	ONEX	Exact match	Erie, PA, United StatesHQ recorded Sep 30, 2026	51-200	54 contacts →
	Exact match “Onex is here to help with your refractory construction, combustion & industrial furnace, raw materials, and precast needs.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
24	Interpower Induction	Exact match	Almont, MI, United StatesHQ recorded Sep 30, 2026	51-200	52 contacts →
	Exact match “Interpower Induction is a Michigan-based multinational leader in induction heating equipment manufacturing.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
25	Olsun Electrics Corporation	Exact match	Richmond, IL, United StatesHQ recorded Sep 30, 2026	51-200	51 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 · Sep 30, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “furnace transformer manufacturers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 214 furnace transformer manufacturers based in the United States

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Furnace transformer manufacturers based in the United States at a glance

As of Sep 30, 2026

39.9%Verified-email coverage

31.6Average contacts per company

11-50Median size (employees)

3.3%Largest-city concentration · Houston

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 214 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 “furnace transformer manufacturers” 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 2,699 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 September 30, 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 “furnace transformer manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many furnace transformer manufacturers are there based in the United States?

RevenueBase identified 214 company matches for furnace transformer manufacturers associated with the United States as of September 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?

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

Which city has the most furnace transformer manufacturers?

Houston leads with 7 company records, followed by Canton (3) and Cincinnati (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 2,699 professional contacts with verified work emails tracked across these 214 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 September 30, 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.