Company lists · Data refreshed September 2026
Portable boiler manufacturers: the worldwide list
RevenueBase identified 168 portable boiler manufacturers across the 3 countries with a published list, as of September 2026, and tracks 3,942 professional contacts across them, including 1,840 with verified work emails and 0 with mobile numbers. The United States is the largest market and Houston the largest hub.
This is the worldwide list of portable boiler manufacturers: the 3 country lists RevenueBase publishes for the category, summed and ranked as one. The company count is that sum, not a census of every company on earth; a country with no published list is not counted. 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.
The 25 largest portable boiler manufacturers across the 3 countries with a published list
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 631 contacts → | ||||
Strong 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, 2026Thanks. The Data Team will review it. | |||||
| 2 | 193 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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, 2026Thanks. The Data Team will review it. | |||||
| 5 | 131 contacts → | ||||
Partial evidence “WARE is a commercial and industrial, boiler rental and service company.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 6 | 110 contacts → | ||||
Partial evidence “Cochran has been embedded within industrial boiler manufacturing since 1878.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 7 | 102 contacts → | ||||
Partial evidence “California Boiler is a 100% employee-owned company specializing in complete boiler service, sales, parts and rentals.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 8 | 96 contacts → | ||||
Partial evidence “Your industrial boiler is at the heart of your operations.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 9 | 92 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 10 | 92 contacts → | ||||
Indirect evidence “Founded in 1985 by Richard J.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 11 | 81 contacts → | ||||
Partial evidence “Superior Boiler provides engineered energy solutions and is a leader in clean air emissions technology.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 12 | 74 contacts → | ||||
Partial evidence “Thermogenics, founded in 1975, is a leading provider of boiler lifecycle solutions in North America.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 13 | 73 contacts → | ||||
Partial evidence “Simoneau is a leader in the high-performance boiler industry, both commercial & institutional recognized worldwide.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 14 | 73 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 15 | 64 contacts → | ||||
Partial evidence “RENTECH was founded in 1996 to build boilers for people who know and care.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 16 | 60 contacts → | ||||
Partial evidence “Since 1964, Cole Industrial has been the Northwest's leading provider of new, used and rental boiler equipment for the process and comfort heating needs of nearly every industry…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 17 | 58 contacts → | ||||
Indirect evidence “Helping the Customer Remove the Worry" Thermal Tech, Inc.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 18 | 54 contacts → | ||||
Partial evidence “Since 1967 Nationwide Boiler has provided reliable rental boilers to process steam users across the globe.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 19 | 48 contacts → | ||||
Partial evidence “Powerhouse is "The Ultimate Boiler Expert".” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 20 | 41 contacts → | ||||
Partial evidence “Since being founded in 1976, Bay City Boiler has grown to become the largest provider of commercial and industrial boiler service and sales in Northern California.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 21 | 38 contacts → | ||||
Strong evidence “Fulton Ltd specialises in the design and manufacture of steam, hot water, thermal fluid boilers, packaged plant rooms and skid-mounted systems for industrial, commercial and…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 22 | 33 contacts → | ||||
Partial evidence “GCB Industries | Trusted Experts in Fired-Equipment Solutions GCB Industries is a mechanical and fired-equipment services platform specializing in boiler plants, central utility…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 23 | 32 contacts → | ||||
Indirect evidence “Power Equipment Company (Power Equipment of Memphis) specializes in energy systems and heat generating products, providing the knowledge, products, services and supplies necessary…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 24 | 31 contacts → | ||||
Partial evidence “All-Pro Services Ltd is a locally owned and operated boiler contractor business established in All-Pro has a Class "A"Boiler Contractor designation, licensed "A" Gas Contractor…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 25 | 30 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
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: portable boiler manufacturers. 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 portable boiler manufacturers.
- Partial evidence
- Its own public description names part of portable boiler manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name portable boiler manufacturers. 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 168 portable boiler manufacturers across the 3 countries with a published list
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Portable boiler manufacturers worldwide at a glance
As of Sep 17, 2026Companies by employee count
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 portable boiler manufacturers, 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.
- Coverage
- This worldwide list is the sum of the 3 country lists RevenueBase publishes for portable boiler manufacturers, largest first: the United States, Canada, the United Kingdom. Its company and contact totals add up those lists, so they understate the true worldwide figures: a country with no published list is not counted. The ranked table is exact across the countries covered, the largest companies of every country list ranked together with duplicates removed.
- What qualifies
- Companies worldwide whose own description of what they do matches “portable boiler manufacturers”. 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 portable boiler manufacturers), 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 portable boiler manufacturers, and records with no verified work email.
- 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, 1,840 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- The country lists behind this page 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.
Portable boiler manufacturers by location
3 lists · largest firstEvery Portable boiler manufacturers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date; the worldwide figures above are the sum of the 3 country lists.
Countries
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 portable boiler manufacturers, 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 portable boiler manufacturers are there worldwide?
RevenueBase identified 168 portable boiler manufacturers across the 3 countries with a published list, as of September 2026, matched on each company's own description of what it does rather than its industry code. The figure is the sum of those country lists, not a census of every company worldwide.
What is the largest company on this list?
Cleaver-Brooks, headquartered in Thomasville, tops this list with the largest team on record.
Which country has the most portable boiler manufacturers?
The United States leads with 100 companies, followed by Canada (36) and the United Kingdom (32). Every country with a published portable boiler manufacturers list is linked on this page.
Which city has the most portable boiler manufacturers?
Houston leads with 4 headquartered companies, followed by Richmond (4) and Boucherville (3).
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 1,840 verified decision-maker contacts tracked across these 168 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. The country lists behind this page were pulled from the company graph 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.