Company lists · Data refreshed September 2026

Top 25 Fire boiler manufacturers based in the United States

RevenueBase identified 240 company matches for fire boiler manufacturers associated with the United States as of September 2026 and tracks 7,675 professional contacts across them, including 3,257 with verified work emails. Houston is the largest hub.

This list covers company matches for fire boiler 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
240Companies
7,675Contacts tracked
3,257Verified emails
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The 25 largest fire boiler manufacturers based in the United States

Ranked by team size
Top 25 of 240 company matches for fire boiler 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchAustin, TX, United StatesHQ recorded Sep 30, 20261,001-5,000901 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
2Exact matchThomasville, GA, United StatesHQ recorded Sep 30, 20261,001-5,000631 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
3Exact matchBuffalo, NY, United StatesHQ recorded Sep 30, 20261,001-5,000364 contacts →

Exact match

“API Heat Transfer is a leading global provider of heat transfer solutions, recognized for delivering innovative, energy-efficient equipment for more than 140 years.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
4Exact matchOxnard, United StatesHQ recorded Sep 30, 2026501-1,000242 contacts →

Exact match

“For over 70 years, Raypak has been the world's leading manufacturer of copper finned boilers and heaters.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
5Exact matchLa Palma, CA, United StatesHQ recorded Sep 30, 2026201-500219 contacts →

Exact match

“At TEi, we help the power and process industries operate safely, sustainably, and without costly downtime.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
6Exact matchSt. Louis, MO, United StatesHQ recorded Sep 30, 2026201-500198 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
7Exact matchDallas, TX, United StatesHQ recorded Sep 30, 2026201-500193 contacts →

Exact match

“Cleaver-Brooks Sales and Service, is one of the most innovative and fastest growing boiler services companies in the United States.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
8Exact matchPulaski, NY, United StatesHQ recorded Sep 30, 2026501-1,000171 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
9Exact matchCollinsville, OK, United StatesHQ recorded Sep 30, 2026201-500162 contacts →

Exact match

“Victory Energy Operations, LLC is a leading, single-source (concept to completion) supplier of custom-engineered industrial boiler systems and advanced technologies worldwide…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
10Exact matchCity Of Industry, CA, United StatesHQ recorded Sep 30, 202651-200132 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
11Exact matchLouisville, KY, United StatesHQ recorded Sep 30, 202651-200131 contacts →

Exact match

“WARE is a commercial and industrial, boiler rental and service company.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
12Exact matchUtica, United StatesHQ recorded Sep 30, 2026201-500126 contacts →

Exact match

“ECR International, Inc.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
13Exact matchBaltimore, MD, United StatesHQ recorded Sep 30, 202651-200115 contacts →

Exact match

“For over 102 years, Tate Engineering has been a trusted provider of mechanical and industrial solutions across the Mid-Atlantic.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
14Exact matchAddison, TX, United StatesHQ recorded Sep 30, 202651-200106 contacts →

Exact match

“Forney® has maintained its position as a leader in power plant and large industrial systems for more than 90 years by designing, manufacturing, installing and servicing the most…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
15Exact matchDanbury, CT, United StatesHQ recorded Sep 30, 202651-200104 contacts →

Exact match

“Preferred Utilities Manufacturing Corporation is an engineering-based manufacturer of products for commercial, institutional, industrial and nuclear power facilities.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
16Exact matchBlauvelt, NY, United StatesHQ recorded Sep 30, 202651-200104 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
17Exact matchSanta Ana, CA, United StatesHQ recorded Sep 30, 202651-200102 contacts →

Exact match

“California Boiler is a 100% employee-owned company specializing in complete boiler service, sales, parts and rentals.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
18Exact matchCumming, GA, United StatesHQ recorded Sep 30, 2026201-50094 contacts →

Exact match

“RMR Mechanical is an industrial boiler and mechanical contractor.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
19Exact matchWest Norriton, PA, United StatesHQ recorded Sep 30, 202651-20092 contacts →

Exact match

“Delval has provided thousands of packaged boilers to our trusted clients, more than any other supplier in the region.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
20Exact matchNewport News, VA, United StatesHQ recorded Sep 30, 202651-20092 contacts →

Exact match

“Founded in 1985 by Richard J.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
21Exact matchHutchinson, KS, United StatesHQ recorded Sep 30, 202651-20081 contacts →

Exact match

“Superior Boiler provides engineered energy solutions and is a leader in clean air emissions technology.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
22Exact matchPittsburgh, PA, United StatesHQ recorded Sep 30, 202611-5075 contacts →

Exact match

“PCC’s mission is to apply our know-how with confidence to design, supply and service high-tech, energy-efficient, dependable combustion and pollution control systems that provide…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
23Exact matchMarietta, GA, United StatesHQ recorded Sep 30, 202651-20075 contacts →

Exact match

“Sigma Thermal designs, engineers, supplies, and services process heating systems for industry.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
24Exact matchCoolidge, GA, United StatesHQ recorded Sep 30, 2026201-50073 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
25Exact matchParsons, KS, United StatesHQ recorded Sep 30, 202651-20068 contacts →

Exact match

“An innovative and forward thinking force in the commercial combustion equipment industry, Power Flame Incorporated manufactures gas, oil, combination gas/oil, low NOx burners and…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase

Showing 25 of 240 fire boiler manufacturers based in the United States

See the full list, filter by size, metro and specialty, and access 3,257 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Fire boiler manufacturers based in the United States at a glance

As of Sep 30, 2026
42.4%Verified-email coverage
32.0Average contacts per company
11-50Median size (employees)
3.3%Largest-city concentration · Houston
Sep 30, 2026Page data refreshed

Companies by employee count

1-10
76
11-50
90
51-200
59
201-500
9
501-1,000
2
1,001-5,000
4

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 240 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 “fire boiler 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 3,257 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 “fire boiler manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many fire boiler manufacturers are there based in the United States?

RevenueBase identified 240 company matches for fire boiler 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 fire boiler manufacturers?

Houston leads with 8 company records, followed by Tulsa (8) and Chattanooga (5).

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 3,257 professional contacts with verified work emails tracked across these 240 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.