Company lists · Data refreshed September 2026

Top 25 Thermal fluid heater manufacturers worldwide

Name: Thermal fluid heater manufacturers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 3,069 companies tracked

RevenueBase identified 3,069 thermal fluid heater manufacturers worldwide as of September 2026 and tracks 49,707 professional contacts across them, including 11,637 with verified work emails. India is the largest market and Pune the largest hub.

This list covers thermal fluid heater 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 30, 2026. Country and city lists for thermal fluid heater 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 30, 2026 86% judged on-target in blind review

3,069Companies

49,707Contacts tracked

11,637Verified emails

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The 25 largest thermal fluid heater manufacturers worldwide

Ranked by team size

Top 25 of 3,069 thermal fluid heater manufacturers worldwide, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to thermal fluid heater 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	Thermon	Strong evidence	Austin, TX, United StatesHQ checked Sep 30, 2026	1,001-5,000	901 contacts →
	Strong 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 30, 2026
2	Thermax Babcock & Wilcox Energy Solutions Limited	Partial evidence	Pune, IndiaHQ checked Sep 30, 2026	1,001-5,000	843 contacts →
	Partial evidence “Thermax Babcock & Wilcox Energy Solutions (TBWES), a wholly-owned subsidiary of Thermax Limited, provides equipment and complete solutions for generating steam for process and…” Source: RevenueBase Database · checked Sep 30, 2026
3	Riello	Indirect evidence	Legnago, ItalyHQ checked Sep 30, 2026	1,001-5,000	690 contacts →
	Indirect evidence “For over 100 years, Riello’s Energy For Life has been at the core of its industrial policy, guiding the company in the development of solutions designed to provide comfort and…” Source: RevenueBase Database · checked Sep 30, 2026
4	Cleaver-Brooks	Partial evidence	Thomasville, GA, United StatesHQ checked Sep 30, 2026	1,001-5,000	631 contacts →
	Partial 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 30, 2026
5	John Thompson	Indirect evidence	Cape Town, South AfricaHQ checked Sep 30, 2026	1,001-5,000	629 contacts →
	Indirect evidence “John Thompson is a leader in energy and environmental solutions through value engineering and innovation.” Source: RevenueBase Database · checked Sep 30, 2026
6	Spirax Group	Indirect evidence	Cheltenham, FranceHQ checked Sep 30, 2026	10001+	560 contacts →
	Indirect evidence “Spirax Group is the new name for Spirax-Sarco Engineering.” Source: RevenueBase Database · checked Sep 30, 2026
7	Euroasiatic	Partial evidence	Bumi Serpong Damai City Tangerang Selatan, IndonesiaHQ checked Sep 30, 2026	201-500	440 contacts →
	Partial evidence “Euroasiatic (EA) is a Heat & Power Generation Solutions Provider.” Source: RevenueBase Database · checked Sep 30, 2026
8	Baymak BDR Thermea Group	Partial evidence	İstanbul, TürkiyeHQ checked Sep 30, 2026	501-1,000	439 contacts →
	Partial evidence “1969 yılında faaliyetlerine başlayan ve 2013 yılı itibarıyla iklimlendirme sektöründe Avrupa’nın ilk üç şirketi arasında yer alan BDR Thermea Group bünyesine katılan Baymak…” Source: RevenueBase Database · checked Sep 30, 2026
9	Ferroli Group	Partial evidence	San Bonifacio, ItalyHQ checked Sep 30, 2026	1,001-5,000	418 contacts →
	Partial evidence “Comfort, designed around you – Since 1955, Ferroli has been a trusted name in HVAC, delivering innovative solutions for heating, cooling and hot water that combine comfort, energy…” Source: RevenueBase Database · checked Sep 30, 2026
10	Babcock Wanson International	Indirect evidence	Nerac, FranceHQ checked Sep 30, 2026	501-1,000	388 contacts →
	Indirect evidence “BABCOCK WANSON offers a complete range of products and services for industrial boiler house.” Source: RevenueBase Database · checked Sep 30, 2026
11	API Heat Transfer	Partial evidence	Buffalo, NY, United StatesHQ checked Sep 30, 2026	1,001-5,000	364 contacts →
	Partial evidence “API Heat Transfer is a leading global provider of heat transfer solutions, recognized for delivering innovative, energy-efficient equipment for more than 140 years.” Source: RevenueBase Database · checked Sep 30, 2026
12	Lochinvar, LLC	Strong evidence	Lebanon, TN, IndiaHQ checked Sep 30, 2026	201-500	340 contacts →
	Strong evidence “Lochinvar, LLC is a leading manufacturer of high-efficiency water heaters, boilers, pool heaters and custom pre-piped packaged systems.” Source: RevenueBase Database · checked Sep 30, 2026
13	NEM Energy Group	Indirect evidence	Zoeterwoude, NetherlandsHQ checked Sep 30, 2026	201-500	321 contacts →
	Indirect evidence “NEM is a global player in the power generation sector, committed to making a tangible impact on creating a better world.” Source: RevenueBase Database · checked Sep 30, 2026
14	Cerrey	Partial evidence	San Nicolás De Los Garza, MexicoHQ checked Sep 30, 2026	501-1,000	298 contacts →
	Partial evidence “CERREY, a leading Mexican company, is one of the main manufacturers of steam generators in the Americas.” Source: RevenueBase Database · checked Sep 30, 2026
15	Heurtey Petrochem Solutions	Indirect evidence	Rueil-malmaison, FranceHQ checked Sep 30, 2026	1,001-5,000	277 contacts →
	Indirect evidence “Heurtey Petrochem Solutions is a world leader in process furnaces for refining, petrochemicals, syngas and hydrogen markets.” Source: RevenueBase Database · checked Sep 30, 2026
16	Graham Manufacturing	Partial evidence	Batavia, NY, United StatesHQ checked Sep 30, 2026	201-500	277 contacts →
	Partial evidence “Graham Manufacturing, a GHM Company, designs and builds vacuum and heat transfer equipment for process industries worldwide.” Source: RevenueBase Database · checked Sep 30, 2026
17	Saacke Gmbh	Indirect evidence	Bremen, GermanyHQ checked Sep 30, 2026	1,001-5,000	275 contacts →
	Indirect evidence “For 90 years, SAACKE has been the driving force for the progress within combustion technology.” Source: RevenueBase Database · checked Sep 30, 2026
18	AIC S.A	Partial evidence	Gdynia, PolandHQ checked Sep 30, 2026	501-1,000	268 contacts →
	Partial evidence “AIC is going its way in the field of advanced heat transfer solutions.” Source: RevenueBase Database · checked Sep 30, 2026
19	Sermeta	Strong evidence	Morlaix, FranceHQ checked Sep 30, 2026	501-1,000	256 contacts →
	Strong evidence “Sermeta is the world leading manufacturer of stainless steel heat exchanger for gas condensing boilers.” Source: RevenueBase Database · checked Sep 30, 2026
20	Raypak	Strong evidence	Oxnard, United StatesHQ checked Sep 30, 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 30, 2026
21	Thermal Engineering International USA INC	Indirect evidence	La Palma, CA, United StatesHQ checked Sep 30, 2026	201-500	219 contacts →
	Indirect evidence “At TEi, we help the power and process industries operate safely, sustainably, and without costly downtime.” Source: RevenueBase Database · checked Sep 30, 2026
22	Mimsan Grup	Indirect evidence	Malatya, TürkiyeHQ checked Sep 30, 2026	501-1,000	215 contacts →
	Indirect evidence “Mimsan Grup; Yakma ve Enerji Sistemleri Üreten 41 Yıllık Bir Deneyime Sahip Endüstri Firmasıdır.” Source: RevenueBase Database · checked Sep 30, 2026
23	Dimplex UK	Partial evidence	Southampton, United KingdomHQ checked Sep 30, 2026	501-1,000	201 contacts →
	Partial evidence “For over 75 years, Dimplex has been the trusted name for electric heating.” Source: RevenueBase Database · checked Sep 30, 2026
24	Intergas Verwarming B.V	Indirect evidence	Coevorden, NetherlandsHQ checked Sep 30, 2026	201-500	199 contacts →
	Indirect evidence “Intergas: an introduction.” Source: RevenueBase Database · checked Sep 30, 2026
25	Nooter Eriksen, INC	Partial evidence	St. Louis, MO, United StatesHQ checked Sep 30, 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 30, 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: thermal fluid heater 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 thermal fluid heater manufacturers.
Partial evidence: Its own public description names part of thermal fluid heater manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name thermal fluid heater 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 3,069 thermal fluid heater manufacturers worldwide

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Thermal fluid heater manufacturers worldwide at a glance

As of Sep 30, 2026

23.4%Verified-email coverage

16.2Average contacts per company

11-50Median size (employees)

1.5%Largest-city concentration · Pune

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

948

11-50

1,152

51-200

676

201-500

150

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 thermal fluid heater 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: Every country. Country and city lists for thermal fluid heater manufacturers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “thermal fluid heater 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 thermal fluid heater 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 thermal fluid heater 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, 11,637 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 30, 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.

Thermal fluid heater manufacturers by location

17 lists · largest first

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

Countries

Cities

Thermal fluid heater manufacturers based in Pune, India45

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 thermal fluid heater 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 thermal fluid heater manufacturers are there worldwide?

RevenueBase identified 3,069 thermal fluid heater 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?

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

Which country has the most thermal fluid heater manufacturers?

India leads with 352 companies, followed by the United States (322) and Italy (264). Every thermal fluid heater manufacturers list by country and city is linked on this page.

Which city has the most thermal fluid heater manufacturers?

Pune leads with 45 headquartered companies, followed by Ahmedabad (33) and Istanbul (25).

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 11,637 verified decision-maker contacts tracked across these 3,069 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 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 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.