Company lists · Data refreshed September 2026

Top 25 Modular boiler manufacturers worldwide

Name: Modular boiler manufacturers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 434 companies tracked

RevenueBase identified 434 modular boiler manufacturers worldwide as of September 2026 and tracks 7,757 professional contacts across them, including 3,143 with verified work emails and 0 with mobile numbers. The United States is the largest market and Ahmedabad the largest hub.

This list covers modular boiler manufacturers worldwide, 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. Country and city lists for modular boiler manufacturers follow the table.

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

434Companies

7,757Contacts tracked

3,143Verified emails

0Mobile numbers

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The 25 largest modular boiler manufacturers worldwide

Ranked by team size

Top 25 of 434 modular boiler manufacturers worldwide, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to modular boiler manufacturers: 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	Cleaver-Brooks	Strong evidence	Thomasville, GA, United StatesHQ checked Sep 17, 2026	1,001-5,000	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, 2026
2	Babcock Wanson International	Partial evidence	Nerac, FranceHQ checked Sep 17, 2026	501-1,000	388 contacts →
	Partial evidence “BABCOCK WANSON offers a complete range of products and services for industrial boiler house.” Source: RevenueBase Database · checked Sep 17, 2026
3	Raypak	Strong evidence	Oxnard, United StatesHQ checked Sep 17, 2026	501-1,000	242 contacts →
	Strong 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
4	Cleaver-Brooks Sales And Service	Partial evidence	Dallas, TX, United StatesHQ checked Sep 17, 2026	201-500	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, 2026
5	Baxi Italia	Indirect evidence	Bassano Del Grappa, ItalyHQ checked Sep 17, 2026	501-1,000	189 contacts →
	Indirect evidence “Nata negli anni 1925 come produttore di prodotti smaltati, dagli anni 70 Baxi è entrata nel settore HVAC con apparecchi domestici per il riscaldamento e la climatizzazione.” Source: RevenueBase Database · checked Sep 17, 2026
6	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
7	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
8	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
9	Laars Heating Systems	Indirect evidence	Rochester, NH, United StatesHQ checked Sep 17, 2026	201-500	126 contacts →
	Indirect evidence “Founded in 1948, LAARS serves a diverse base of customers located in many countries across the globe.” Source: RevenueBase Database · checked Sep 17, 2026
10	ECR International	Indirect evidence	Utica, United StatesHQ checked Sep 17, 2026	201-500	126 contacts →
	Indirect evidence “ECR International, Inc.” Source: RevenueBase Database · checked Sep 17, 2026
11	Cochran	Partial evidence	Annan, United KingdomHQ checked Sep 17, 2026	201-500	110 contacts →
	Partial evidence “Cochran has been embedded within industrial boiler manufacturing since 1878.” Source: RevenueBase Database · checked Sep 17, 2026
12	Helfrich Brothers Boiler Works	Indirect evidence	Lawrence, MA, United StatesHQ checked Sep 17, 2026	51-200	106 contacts →
	Indirect evidence “Our innovative approach, highly-trained team, and square foot facility gives Helfrich Brothers the ability to offer custom turn-key services for our clients.” Source: RevenueBase Database · checked Sep 17, 2026
13	Aerco International, INC	Indirect evidence	Blauvelt, NY, United StatesHQ checked Sep 17, 2026	51-200	104 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
14	California Boiler	Partial evidence	Santa Ana, CA, United StatesHQ checked Sep 17, 2026	51-200	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, 2026
15	Byworth Boilers Limited	Partial evidence	Keighley, United KingdomHQ checked Sep 17, 2026	51-200	96 contacts →
	Partial evidence “Your industrial boiler is at the heart of your operations.” Source: RevenueBase Database · checked Sep 17, 2026
16	Thermodyne Engineering System	Indirect evidence	Ghaziabad, IndiaHQ checked Sep 17, 2026	201-500	96 contacts →
	Indirect evidence “With over 25 years of experience, we are one of India’s most trusted names in industrial heating and energy solutions.” Source: RevenueBase Database · checked Sep 17, 2026
17	Delval Equipment	Partial evidence	West Norriton, PA, United StatesHQ checked Sep 17, 2026	51-200	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, 2026
18	C&c Boiler Sales & Service, INC	Partial evidence	Charlotte, NC, United StatesHQ checked Sep 17, 2026	51-200	90 contacts →
	Partial evidence “Founded in 1977, C&C Boiler Sales & Service, Inc.” Source: RevenueBase Database · checked Sep 17, 2026
19	JBC	Partial evidence	Normanton, United KingdomHQ checked Sep 17, 2026	51-200	86 contacts →
	Partial evidence “JBC Industrial Services is the leading name in Industrial Boiler and Burner service, maintenance, and repair.” Source: RevenueBase Database · checked Sep 17, 2026
20	Prime Boiler Services, A Thermogenics Company	Partial evidence	Red Deer, AB, CanadaHQ checked Sep 17, 2026	51-200	84 contacts →
	Partial evidence “Prime Boiler Services has been servicing the Oil & Gas, Power, Industrial, and Commercial business sectors across Western Canada since 1991.” Source: RevenueBase Database · checked Sep 17, 2026
21	Superior Boiler	Partial evidence	Hutchinson, KS, United StatesHQ checked Sep 17, 2026	51-200	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, 2026
22	Thermogenics	Partial evidence	Aurora, ON, CanadaHQ checked Sep 17, 2026	51-200	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, 2026
23	LE Groupe Simoneau	Partial evidence	Boucherville, QC, CanadaHQ checked Sep 17, 2026	51-200	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, 2026
24	Hurst Boiler & Welding Company, INC	Indirect evidence	Coolidge, GA, United StatesHQ checked Sep 17, 2026	201-500	73 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
25	Termotecnica Industriale S.R.L	Indirect evidence	Milan, ItalyHQ checked Sep 17, 2026	51-200	72 contacts →
	Indirect evidence “Realtà leader in Italia e all'estero nelle soluzioni di progettazione, fornitura e manutenzione di caldaie, tra cui caldaie industriali e generatori di vapore a recupero di calore.” 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: modular 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 modular boiler manufacturers.
Partial evidence: Its own public description names part of modular boiler manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name modular 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 434 modular boiler manufacturers worldwide

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Modular boiler manufacturers worldwide at a glance

As of Sep 17, 2026

40.5%Verified-email coverage

17.9Average contacts per company

11-50Median size (employees)

2.5%Largest-city concentration · Ahmedabad

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

154

11-50

157

51-200

201-500

501-1,000

1,001-5,000

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 modular 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: 6 countries, largest first: the United States, India, the United Kingdom, Canada, Italy, France. Country and city lists for modular boiler manufacturers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “modular 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 modular 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 modular 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, 3,143 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.

Modular boiler manufacturers by location

6 lists · largest first

Every Modular boiler manufacturers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

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 modular 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 modular boiler manufacturers are there worldwide?

RevenueBase identified 434 modular boiler manufacturers worldwide 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?

Cleaver-Brooks, headquartered in Thomasville, tops this list with the largest team on record.

Which country has the most modular boiler manufacturers?

The United States leads with 176 companies, followed by India (77) and the United Kingdom (74). Every modular boiler manufacturers list by country and city is linked on this page.

Which city has the most modular boiler manufacturers?

Ahmedabad leads with 11 headquartered companies, followed by Pune (11) and Chennai (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 3,143 verified decision-maker contacts tracked across these 434 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.