Company lists · Data refreshed September 2026

Top 25 Industrial steam generation companies based in the United States

Name: Industrial steam generation 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 280 companies tracked

RevenueBase identified 280 industrial steam generation companies headquartered in the United States as of September 2026 and tracks 9,459 professional contacts across them, including 3,956 with verified work emails. Houston is the largest hub.

This list covers industrial steam generation 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

280Companies

9,459Contacts tracked

3,956Verified emails

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The 25 largest industrial steam generation companies based in the United States

Ranked by team size

Top 25 of 280 industrial steam generation 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 steam generation 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	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
2	Armstrong International Intelligent Solutions In Steam, AIR And HOT Water	Indirect evidence	Three Rivers, MI, United StatesHQ checked Sep 17, 2026	1,001-5,000	826 contacts →
	Indirect evidence “Solving problems with innovative and intelligent products is at the heart of what we do.” Source: RevenueBase Database · checked Sep 17, 2026
3	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
4	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
5	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
6	Vogt Power International	Partial evidence	Louisville, KY, United StatesHQ checked Sep 17, 2026	201-500	209 contacts →
	Partial evidence “Vogt Power International Inc, headquartered in Louisville, Kentucky, is a global leader in the design, manufacturing, and supply of Heat Recovery Steam Generators (HRSGs) and…” Source: RevenueBase Database · checked Sep 17, 2026
7	Clyde Industries	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 17, 2026	201-500	209 contacts →
	Partial evidence “Clyde Industries, a subsidiary of Kadant Inc, headquartered in Atlanta, Georgia, is a leading provider of boiler efficiency solutions for the most demanding applications in the…” Source: RevenueBase Database · checked Sep 17, 2026
8	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
9	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
10	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
11	Fulton	Strong evidence	Pulaski, NY, United StatesHQ checked Sep 17, 2026	501-1,000	171 contacts →
	Strong 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
12	Victory Energy Operations, LLC	Partial evidence	Collinsville, OK, United StatesHQ checked Sep 17, 2026	201-500	162 contacts →
	Partial evidence “Victory Energy Operations, LLC is a leading, single-source (concept to completion) supplier of custom-engineered industrial boiler systems and advanced technologies worldwide…” Source: RevenueBase Database · checked Sep 17, 2026
13	Clayton Industries	Strong evidence	City Of Industry, CA, United StatesHQ checked Sep 17, 2026	51-200	132 contacts →
	Strong 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
14	WARE	Partial evidence	Louisville, KY, United StatesHQ checked Sep 17, 2026	51-200	131 contacts →
	Partial evidence “WARE is a commercial and industrial, boiler rental and service company.” Source: RevenueBase Database · checked Sep 17, 2026
15	Kraft Power Corporation	Indirect evidence	Woburn, MA, United StatesHQ checked Sep 17, 2026	51-200	130 contacts →
	Indirect evidence “IN POWER FOR 60 YEARS Kraft Power was founded in 1965 in Boston, Massachusetts.” Source: RevenueBase Database · checked Sep 17, 2026
16	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
17	ESI Inc. Of Tennessee	Strong evidence	Kennesaw, GA, United StatesHQ checked Sep 17, 2026	51-200	112 contacts →
	Strong evidence “Established in 1978, ESI is a design, engineering, and construction firm that specializes in steam and power generation facilities.” Source: RevenueBase Database · checked Sep 17, 2026
18	Titan Contracting And Leasing Co., INC	Indirect evidence	Owensboro, KY, United StatesHQ checked Sep 17, 2026	501-1,000	112 contacts →
	Indirect evidence “Specialty Mechanical Contractor Shop & Field Services Design & Engineering Fabrication HRSG/Boiler Manufacturing & Erection Turbine Generator Installation, Repair & Maintenance…” Source: RevenueBase Database · checked Sep 17, 2026
19	GTE	Partial evidence	Orlando, FL, United StatesHQ checked Sep 17, 2026	51-200	111 contacts →
	Partial evidence “Power Generation Manufacturing and Engineering.” Source: RevenueBase Database · checked Sep 17, 2026
20	Preferred Utilities Manufacturing Corporation	Partial evidence	Danbury, CT, United StatesHQ checked Sep 17, 2026	51-200	104 contacts →
	Partial evidence “Preferred Utilities Manufacturing Corporation is an engineering-based manufacturer of products for commercial, institutional, industrial and nuclear power facilities.” Source: RevenueBase Database · checked Sep 17, 2026
21	California Boiler	Indirect evidence	Santa Ana, CA, United StatesHQ checked Sep 17, 2026	51-200	102 contacts →
	Indirect evidence “California Boiler is a 100% employee-owned company specializing in complete boiler service, sales, parts and rentals.” Source: RevenueBase Database · checked Sep 17, 2026
22	RMR Mechanical LLC And Bodman Services LLC	Partial evidence	Cumming, GA, United StatesHQ checked Sep 17, 2026	201-500	94 contacts →
	Partial evidence “RMR Mechanical is an industrial boiler and mechanical contractor.” Source: RevenueBase Database · checked Sep 17, 2026
23	Delval Equipment	Indirect evidence	West Norriton, PA, United StatesHQ checked Sep 17, 2026	51-200	92 contacts →
	Indirect evidence “Delval has provided thousands of packaged boilers to our trusted clients, more than any other supplier in the region.” Source: RevenueBase Database · checked Sep 17, 2026
24	Power Mechanical, INC	Indirect evidence	Newport News, VA, United StatesHQ checked Sep 17, 2026	51-200	92 contacts →
	Indirect evidence “Founded in 1985 by Richard J.” Source: RevenueBase Database · checked Sep 17, 2026
25	RK Power Corp	Indirect evidence	San Juan, United StatesHQ checked Sep 17, 2026	51-200	92 contacts →
	Indirect evidence “Somos una compañía formada por profesionales altamente calificados, fundada en el año 2010 con más de 10 años de experiencia en el mercado, dedicados a la Fabricación, Diseño…” 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 steam generation 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 steam generation companies.
Partial evidence: Its own public description names part of industrial steam generation companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial steam generation 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 280 industrial steam generation companies based in the United States

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Industrial steam generation companies based in the United States at a glance

As of Sep 17, 2026

41.8%Verified-email coverage

33.8Average contacts per company

11-50Median size (employees)

4.3%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

107

51-200

201-500

501-1,000

1,001-5,000

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 280 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 steam generation 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 steam generation 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 steam generation 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 steam generation 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, 3,956 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 steam generation 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 steam generation companies are there based in the United States?

RevenueBase identified 280 industrial steam generation 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?

Thermon, headquartered in Austin, tops this list with the largest team on record.

Which city has the most industrial steam generation companies?

Houston leads with 12 headquartered companies, followed by Chattanooga (5) and Tulsa (5).

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 3,956 verified decision-maker contacts tracked across these 280 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.