Company lists · Data refreshed September 2026

Top 25 Industrial heat providers based in the United States

Name: Industrial heat providers 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 937 companies tracked

RevenueBase identified 937 industrial heat providers headquartered in the United States as of September 2026 and tracks 16,392 professional contacts across them, including 6,170 with verified work emails. Houston is the largest hub.

This list covers industrial heat providers 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

937Companies

16,392Contacts tracked

6,170Verified emails

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The 25 largest industrial heat providers based in the United States

Ranked by team size

Top 25 of 937 industrial heat providers 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 heat providers: 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	Raychem Chemelex	Strong evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	925 contacts →
	Strong 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
2	Thermon	Partial evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	901 contacts →
	Partial 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
3	Bradford White	Partial evidence	Ambler, PA, United StatesHQ checked Sep 17, 2026	1,001-5,000	689 contacts →
	Partial 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
4	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
5	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
6	API Heat Transfer	Partial evidence	Buffalo, NY, United StatesHQ checked Sep 17, 2026	1,001-5,000	364 contacts →
	Partial 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
7	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
8	Vicinity Energy	Indirect evidence	Boston, MA, United StatesHQ checked Sep 17, 2026	501-1,000	286 contacts →
	Indirect evidence “Vicinity Energy is a leading district energy company that owns and operates the largest portfolio of district energy systems nationwide, providing steam, hot water, and chilled…” Source: RevenueBase Database · checked Sep 17, 2026
9	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
10	Tolin Mechanical Systems	Indirect evidence	Denver, CO, United StatesHQ checked Sep 17, 2026	201-500	220 contacts →
	Indirect evidence “Tolin Mechanical is a Leading Energy & Commercial HVAC Services Company.” Source: RevenueBase Database · checked Sep 17, 2026
11	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
12	Nooter Eriksen, INC	Partial evidence	St. Louis, MO, United StatesHQ checked Sep 17, 2026	201-500	198 contacts →
	Partial evidence “Nooter/Eriksen, the world's leading independent supplier of Natural Circulation Heat Recovery Steam Generators (HRSG) behind gas turbines, is a single source supplier of custom…” Source: RevenueBase Database · checked Sep 17, 2026
13	Cleaver-Brooks Sales And Service	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 17, 2026	201-500	193 contacts →
	Indirect evidence “Cleaver-Brooks Sales and Service, is one of the most innovative and fastest growing boiler services companies in the United States.” Source: RevenueBase Database · checked Sep 17, 2026
14	R.F. Macdonald CO	Indirect evidence	Hayward, CA, United StatesHQ checked Sep 17, 2026	201-500	190 contacts →
	Indirect evidence “R.F.” Source: RevenueBase Database · checked Sep 17, 2026
15	Analytic Stress Relieving LLC	Indirect evidence	Lafayette, LA, United StatesHQ checked Sep 17, 2026	201-500	190 contacts →
	Indirect evidence “Analytic Stress made a commitment to quality, safety, and the customer when the company started in the Fall of 1979.” Source: RevenueBase Database · checked Sep 17, 2026
16	Fulton	Partial evidence	Pulaski, NY, United StatesHQ checked Sep 17, 2026	501-1,000	171 contacts →
	Partial evidence “Fulton specializes in custom engineered industrial and commercial heating systems featuring steam boilers, hot water and hydronic boilers, thermal fluid heaters, and a full range…” Source: RevenueBase Database · checked Sep 17, 2026
17	Marley Engineered Products	Indirect evidence	Bennettsville, SC, United StatesHQ checked Sep 17, 2026	201-500	167 contacts →
	Indirect evidence “Marley Engineered Products® draws upon a long history of providing reliable comfort heating and ventilation solutions.” Source: RevenueBase Database · checked Sep 17, 2026
18	Newcomb And Company	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 17, 2026	201-500	159 contacts →
	Partial evidence “Founded in 1954, Newcomb and Company is a full-service mechanical contractor providing customers in the commercial, residential, and industrial sectors with innovative…” Source: RevenueBase Database · checked Sep 17, 2026
19	Rondo Energy	Indirect evidence	Alameda, CA, United StatesHQ checked Sep 17, 2026	51-200	145 contacts →
	Indirect evidence “We're hiring!” Source: RevenueBase Database · checked Sep 17, 2026
20	Process Technology	Partial evidence	Willoughby, OH, United StatesHQ checked Sep 17, 2026	201-500	142 contacts →
	Partial evidence “For over 45 years, Process Technology has enabled Semiconductor, Industrial, and Surface Finishing businesses to realize their full potential.” Source: RevenueBase Database · checked Sep 17, 2026
21	Clayton Industries	Partial evidence	City Of Industry, CA, United StatesHQ checked Sep 17, 2026	51-200	132 contacts →
	Partial evidence “Since its inception on October 20, 1930, Clayton Industries has established a world-wide reputation as a leading manufacturer of equipment for industrial process steam…” Source: RevenueBase Database · checked Sep 17, 2026
22	Tate Engineering Systems, INC	Partial evidence	Baltimore, MD, United StatesHQ checked Sep 17, 2026	51-200	115 contacts →
	Partial evidence “For over 102 years, Tate Engineering has been a trusted provider of mechanical and industrial solutions across the Mid-Atlantic.” Source: RevenueBase Database · checked Sep 17, 2026
23	Lawyer Mechanical Services	Indirect evidence	Las Vegas, NV, United StatesHQ checked Sep 17, 2026	51-200	110 contacts →
	Indirect evidence “Lawyer Mechanical Services (LMS) creates and maintains comfort.” Source: RevenueBase Database · checked Sep 17, 2026
24	Hydro-Thermal Corporation	Indirect evidence	Waukesha, WI, United StatesHQ checked Sep 17, 2026	51-200	108 contacts →
	Indirect evidence “Hydro-Thermal helps global manufacturers maintain product quality by heating liquids and process fluids reliably and to precise temperatures for a multitude of direct steam…” Source: RevenueBase Database · checked Sep 17, 2026
25	Industrial Thermal Services, LLC	Indirect evidence	Nederland, TX, United StatesHQ checked Sep 17, 2026	51-200	108 contacts →
	Indirect evidence “Taking the stress out of your project.” 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 heat providers. 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 heat providers.
Partial evidence: Its own public description names part of industrial heat providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial heat providers. 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 937 industrial heat providers based in the United States

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Industrial heat providers based in the United States at a glance

As of Sep 17, 2026

37.6%Verified-email coverage

17.5Average contacts per company

11-50Median size (employees)

1.8%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

396

11-50

350

51-200

150

201-500

501-1,000

1,001-5,000

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 937 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 heat providers, 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 heat providers”. 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 heat providers), 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 heat providers, 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, 6,170 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.

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 heat providers, 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 heat providers are there based in the United States?

RevenueBase identified 937 industrial heat providers 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?

Raychem Chemelex, headquartered in Houston, tops this list with the largest team on record.

Which city has the most industrial heat providers?

Houston leads with 17 headquartered companies, followed by Indianapolis (9) and Tulsa (9).

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 6,170 verified decision-maker contacts tracked across these 937 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.