Company lists · Data refreshed September 2026

Top 25 Industrial heating companies based in the United States

Name: Industrial heating companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 1,506 companies tracked

RevenueBase identified 1,506 industrial heating companies headquartered in the United States as of September 2026 and tracks 38,706 professional contacts across them, including 13,371 with verified work emails. Houston is the largest hub.

This list covers industrial heating companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

1,506Companies

38,706Contacts tracked

13,371Verified emails

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The 25 largest industrial heating companies based in the United States

Ranked by team size

Top 25 of 1,506 industrial heating companies based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to industrial heating companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Modine Manufacturing Company	Indirect evidence	Racine, WI, United StatesHQ checked Sep 17, 2026	10001+	2,927 contacts →
	Indirect evidence “Since 1916, Modine Manufacturing Company has applied innovative thermal technology to meet customer's needs.” Source: RevenueBase Database · checked Sep 17, 2026
2	Aaon, INC	Indirect evidence	Tulsa, OK, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,208 contacts →
	Indirect evidence “Driving the industry forward through the design, manufacturing, and rigorous testing of premium HVAC equipment.” Source: RevenueBase Database · checked Sep 17, 2026
3	Raychem Chemelex	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	925 contacts →
	Partial evidence “Raychem is a world-leading provider of heat-trace management systems for infrastructure, industrial, commercial and residential buildings, with operations globally.” Source: RevenueBase Database · checked Sep 17, 2026
4	Thermon	Strong evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	901 contacts →
	Strong evidence “Industrial Process Heating Solutions Through its global network, Thermon provides safe, reliable and innovative mission critical industrial process heating solutions.” Source: RevenueBase Database · checked Sep 17, 2026
5	Zeeco, INC	Indirect evidence	Tulsa, OK, United StatesHQ checked Sep 17, 2026	1,001-5,000	883 contacts →
	Indirect evidence “Since 1979, Zeeco is the trusted worldwide source for the design and manufacturing of combustion and environmental solutions for the refining, petrochemical, production, power and…” Source: RevenueBase Database · checked Sep 17, 2026
6	Bradford White	Strong evidence	Ambler, PA, United StatesHQ checked Sep 17, 2026	1,001-5,000	689 contacts →
	Strong evidence “Bradford White Corporation is an American-owned, full-line manufacturer of residential, commercial, and industrial products for water heating, space heating, combination heating…” Source: RevenueBase Database · checked Sep 17, 2026
7	Chromalox	Strong evidence	Pittsburgh, PA, United StatesHQ checked Sep 17, 2026	1,001-5,000	635 contacts →
	Strong evidence “When industrial operations depend on heat that simply cannot fail, Chromalox brings unmatched technical knowledge and high‑performance electric heating solutions that stand the…” Source: RevenueBase Database · checked Sep 17, 2026
8	Cleaver-Brooks	Indirect evidence	Thomasville, GA, United StatesHQ checked Sep 17, 2026	1,001-5,000	631 contacts →
	Indirect evidence “Cleaver-Brooks, Inc, a manufacturer of boiler room products for over 90 years, is the only single source manufacturer and supplier of boiler room products including boilers…” Source: RevenueBase Database · checked Sep 17, 2026
9	Evapco, INC	Indirect evidence	Taneytown, MD, United StatesHQ checked Sep 17, 2026	1,001-5,000	569 contacts →
	Indirect evidence “At EVAPCO, we are more than a manufacturer-we are a global team of employee-owners committed to delivering innovative heat transfer solutions for customers worldwide.” Source: RevenueBase Database · checked Sep 17, 2026
10	Mestek, INC	Partial evidence	Westfield, MA, United StatesHQ checked Sep 17, 2026	501-1,000	449 contacts →
	Partial evidence “Today, Mestek is a family of over 45 specialty manufacturers providing heating, ventilating, and air conditioning products, coil handling equipment, extruded aluminum products…” Source: RevenueBase Database · checked Sep 17, 2026
11	Superheat	Indirect evidence	New Lenox, IL, United StatesHQ checked Sep 17, 2026	501-1,000	376 contacts →
	Indirect evidence “Superheat was founded on the principle that cutting-edge technology can offer a Better.” Source: RevenueBase Database · checked Sep 17, 2026
12	Inductotherm Group	Indirect evidence	Rancocas, NJ, United StatesHQ checked Sep 17, 2026	1,001-5,000	375 contacts →
	Indirect evidence “WE BRING HEAT TO METAL.” Source: RevenueBase Database · checked Sep 17, 2026
13	API Heat Transfer	Indirect evidence	Buffalo, NY, United StatesHQ checked Sep 17, 2026	1,001-5,000	364 contacts →
	Indirect evidence “API Heat Transfer is a leading global provider of heat transfer solutions, recognized for delivering innovative, energy-efficient equipment for more than 140 years.” Source: RevenueBase Database · checked Sep 17, 2026
14	Brady Services	Indirect evidence	Greensboro, NC, United StatesHQ checked Sep 17, 2026	501-1,000	340 contacts →
	Indirect evidence “Since 1962, Brady has been committed to delivering innovative, sustainable building solutions that drive long-term success for our customers.” Source: RevenueBase Database · checked Sep 17, 2026
15	Conco Services LLC	Indirect evidence	Verona, PA, United StatesHQ checked Sep 17, 2026	201-500	299 contacts →
	Indirect evidence “Here at Conco, we are always looking for A Better Way.” Source: RevenueBase Database · checked Sep 17, 2026
16	Weil-Mclain	Partial evidence	Burr Ridge, IL, United StatesHQ checked Sep 17, 2026	501-1,000	279 contacts →
	Partial evidence “Weil-McLain® is a leading North American designer and manufacturer of hydronic comfort heating systems for residential, commercial and institutional buildings since 1881.” Source: RevenueBase Database · checked Sep 17, 2026
17	Graham Manufacturing	Partial evidence	Batavia, NY, United StatesHQ checked Sep 17, 2026	201-500	277 contacts →
	Partial evidence “Graham Manufacturing, a GHM Company, designs and builds vacuum and heat transfer equipment for process industries worldwide.” Source: RevenueBase Database · checked Sep 17, 2026
18	GEM Incorporated	Indirect evidence	Walbridge, OH, United StatesHQ checked Sep 17, 2026	1,001-5,000	270 contacts →
	Indirect evidence “Contractor for Life At GEM Inc, we’re experienced problem solvers with the insight, integrity and resources to see you through your toughest challenges.” Source: RevenueBase Database · checked Sep 17, 2026
19	Dilling Group INC	Partial evidence	Logansport, IN, United StatesHQ checked Sep 17, 2026	201-500	253 contacts →
	Partial evidence “Dilling Group Inc.(DGI) provides industrial and commercial solutions with exceptional value.” Source: RevenueBase Database · checked Sep 17, 2026
20	Raypak	Indirect evidence	Oxnard, United StatesHQ checked Sep 17, 2026	501-1,000	242 contacts →
	Indirect evidence “For over 70 years, Raypak has been the world's leading manufacturer of copper finned boilers and heaters.” Source: RevenueBase Database · checked Sep 17, 2026
21	Ajaxtocco Magnethermic	Strong evidence	Warren, OH, United StatesHQ checked Sep 17, 2026	201-500	234 contacts →
	Strong evidence “Ajax TOCCO Magnethermic® designs and manufactures world class induction heating and melting equipment for various industries and applications throughout the world.” Source: RevenueBase Database · checked Sep 17, 2026
22	Durex Industries	Partial evidence	Cary, IL, United StatesHQ checked Sep 17, 2026	201-500	232 contacts →
	Partial evidence “Durex Industries has over 40 years of excellence in designing and manufacturing custom thermal solutions.” Source: RevenueBase Database · checked Sep 17, 2026
23	Thermal Engineering International USA INC	Partial evidence	La Palma, CA, United StatesHQ checked Sep 17, 2026	201-500	219 contacts →
	Partial evidence “At TEi, we help the power and process industries operate safely, sustainably, and without costly downtime.” Source: RevenueBase Database · checked Sep 17, 2026
24	Tweet Garot Mechanical, INC	Indirect evidence	De Pere, WI, United StatesHQ checked Sep 17, 2026	501-1,000	207 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
25	Processbarron	Indirect evidence	Pelham, AL, United StatesHQ checked Sep 17, 2026	201-500	204 contacts →
	Indirect evidence “With 40+ years of proven leadership in the design, manufacturing, installation, and service of heavy process equipment, ProcessBarron is the industry's total systems solutions…” Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: industrial heating companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names industrial heating companies.
Partial evidence: Its own public description names part of industrial heating companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial heating companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,506 industrial heating companies based in the United States

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Industrial heating companies based in the United States at a glance

As of Sep 17, 2026

34.5%Verified-email coverage

25.7Average contacts per company

11-50Median size (employees)

2.7%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

560

11-50

538

51-200

293

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 1,506 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among industrial heating companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “industrial heating companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names industrial heating companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among industrial heating companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 13,371 across the full list. 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 17, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Industrial heating companies by metro

Industrial heating companies in Houston40

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names industrial heating companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many industrial heating companies are there based in the United States?

RevenueBase identified 1,506 industrial heating companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Modine Manufacturing Company, headquartered in Racine, tops this list with the largest team on record.

Which city has the most industrial heating companies?

Houston leads with 40 headquartered companies, followed by Tulsa (24) and Cleveland (10).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 13,371 verified decision-maker contacts tracked across these 1,506 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 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 Smart Search, 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.