Company lists · Data refreshed October 2026

Top 25 Boiler fabrication companies based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Oct 9, 2026 445 companies tracked

RevenueBase identified 445 company matches for boiler fabrication companies associated with the United States as of October 2026 and tracks 7,884 professional contacts across them, including 3,220 with verified work emails. Houston is the largest hub.

This list covers company matches for boiler fabrication companies 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 October 9, 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 Oct 9, 2026 How this list was built

445Companies

7,884Contacts tracked

3,220Verified emails

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The 25 largest boiler fabrication companies based in the United States

Ranked by team size

Top 25 of 445 company matches for boiler fabrication companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 9, 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	Cleaver-Brooks	Exact match	Thomasville, GA, United StatesHQ recorded Oct 9, 2026	1,001-5,000	665 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 · Oct 9, 2026 · View company records in RevenueBase
2	GEM Incorporated	Exact match	Walbridge, OH, United StatesHQ recorded Oct 9, 2026	1,001-5,000	277 contacts →
	Exact match “Contractor for Life At GEM Inc, we’re experienced problem solvers with the insight, integrity and resources to see you through your toughest challenges.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
3	Tweet Garot Mechanical, INC	Exact match	De Pere, WI, United StatesHQ recorded Oct 9, 2026	501-1,000	211 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
4	Cleaver-Brooks Sales And Service	Exact match	Dallas, TX, United StatesHQ recorded Oct 9, 2026	201-500	198 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 · Oct 9, 2026 · View company records in RevenueBase
5	R.F. Macdonald CO	Exact match	Hayward, CA, United StatesHQ recorded Oct 9, 2026	201-500	193 contacts →
	Exact match “R.F.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
6	Fulton	Exact match	Pulaski, NY, United StatesHQ recorded Oct 9, 2026	501-1,000	168 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 · Oct 9, 2026 · View company records in RevenueBase
7	Victory Energy Operations, LLC	Exact match	Collinsville, OK, United StatesHQ recorded Oct 9, 2026	201-500	167 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 · Oct 9, 2026 · View company records in RevenueBase
8	WARE	Exact match	Louisville, KY, United StatesHQ recorded Oct 9, 2026	51-200	149 contacts →
	Exact match “WARE is a commercial and industrial, boiler rental and service company.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
9	Clayton Industries	Exact match	City Of Industry, CA, United StatesHQ recorded Oct 9, 2026	51-200	134 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 · Oct 9, 2026 · View company records in RevenueBase
10	Contractor Service & Fabrication, INC	Exact match	Decatur, AL, United StatesHQ recorded Oct 9, 2026	201-500	126 contacts →
	Exact match “We provide mechanical installation services to a variety of industrial clients throughout the United States.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
11	Titan Contracting And Leasing Co., INC	Exact match	Owensboro, KY, United StatesHQ recorded Oct 9, 2026	501-1,000	118 contacts →
	Exact match “Specialty Mechanical Contractor Shop & Field Services Design & Engineering Fabrication HRSG/Boiler Manufacturing & Erection Turbine Generator Installation, Repair & Maintenance…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
12	Tate Engineering Systems, INC	Exact match	Baltimore, MD, United StatesHQ recorded Oct 9, 2026	51-200	117 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 · Oct 9, 2026 · View company records in RevenueBase
13	Preferred Utilities Manufacturing Corporation	Exact match	Danbury, CT, United StatesHQ recorded Oct 9, 2026	51-200	104 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 · Oct 9, 2026 · View company records in RevenueBase
14	Helfrich Brothers Boiler Works	Exact match	Lawrence, MA, United StatesHQ recorded Oct 9, 2026	51-200	103 contacts →
	Exact match “Our innovative approach, highly-trained team, and square foot facility gives Helfrich Brothers the ability to offer custom turn-key services for our clients.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
15	California Boiler	Exact match	Santa Ana, CA, United StatesHQ recorded Oct 9, 2026	51-200	100 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 · Oct 9, 2026 · View company records in RevenueBase
16	RMR Mechanical LLC And Bodman Services LLC	Exact match	Cumming, GA, United StatesHQ recorded Oct 9, 2026	201-500	96 contacts →
	Exact match “RMR Mechanical is an industrial boiler and mechanical contractor.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
17	C&c Boiler Sales & Service, INC	Exact match	Charlotte, NC, United StatesHQ recorded Oct 9, 2026	51-200	93 contacts →
	Exact match “Founded in 1977, C&C Boiler Sales & Service, Inc.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
18	Delval Equipment	Exact match	West Norriton, PA, United StatesHQ recorded Oct 9, 2026	51-200	92 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 · Oct 9, 2026 · View company records in RevenueBase
19	Superior Boiler	Exact match	Hutchinson, KS, United StatesHQ recorded Oct 9, 2026	51-200	86 contacts →
	Exact match “Superior Boiler provides engineered energy solutions and is a leader in clean air emissions technology.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
20	Pipe & Steel Industrial	Exact match	Denham Springs, LA, United StatesHQ recorded Oct 9, 2026	201-500	74 contacts →
	Exact match “At Pipe and Steel Industrial, we are a trusted full-service contractor specializing in Industrial and Mechanical Construction, Pipe Fabrication and Installation Steel Fabrication…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
21	Hurst Boiler & Welding Company, INC	Exact match	Coolidge, GA, United StatesHQ recorded Oct 9, 2026	201-500	71 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
22	Pbbs Equipment Corporation	Exact match	Menomonee Falls, WI, United StatesHQ recorded Oct 9, 2026	51-200	66 contacts →
	Exact match “PBBS has been providing customer-oriented service since 1955.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
23	Willbanks INC	Exact match	Missouri City, TX, United StatesHQ recorded Oct 9, 2026	51-200	65 contacts →
	Exact match “Since 1977, Willbanks has provided advanced solutions and support for thousands of commercial heating systems and equipment.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
24	Rentech Boiler Systems, INC	Exact match	Abilene, TX, United StatesHQ recorded Oct 9, 2026	201-500	64 contacts →
	Exact match “RENTECH was founded in 1996 to build boilers for people who know and care.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
25	Walashek Industrial & Marine, INC	Exact match	Norfolk, VA, United StatesHQ recorded Oct 9, 2026	51-200	63 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 9, 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 “boiler fabrication companies”. 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 445 boiler fabrication companies based in the United States

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Boiler fabrication companies based in the United States at a glance

As of Oct 9, 2026

40.8%Verified-email coverage

17.7Average contacts per company

11-50Median size (employees)

2.0%Largest-city concentration · Houston

Oct 9, 2026Page data refreshed

Companies by employee count

1-10

131

11-50

186

51-200

101

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 445 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 “boiler fabrication companies” 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 3,220 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 October 9, 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 “boiler fabrication companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many boiler fabrication companies are there based in the United States?

RevenueBase identified 445 company matches for boiler fabrication companies associated with the United States as of October 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?

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

Which city has the most boiler fabrication companies?

Houston leads with 9 company records, followed by Chicago (6) and Tulsa (6).

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 3,220 professional contacts with verified work emails tracked across these 445 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 October 9, 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.