Company lists · Data refreshed September 2026

Top 25 Industrial heat providers worldwide

Name: Industrial heat providers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 6,452 companies tracked

RevenueBase identified 6,452 industrial heat providers worldwide as of September 2026 and tracks 90,348 professional contacts across them, including 27,039 with verified work emails and 0 with mobile numbers. The United States is the largest market and Istanbul the largest hub.

This list covers industrial heat providers 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 industrial heat providers 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

6,452Companies

90,348Contacts tracked

27,039Verified emails

0Mobile numbers

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The 25 largest industrial heat providers worldwide

Ranked by team size

Top 25 of 6,452 industrial heat providers worldwide, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to industrial heat providers: 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	Vaillant Group	Indirect evidence	Remscheid, GermanyHQ checked Sep 17, 2026	10001+	3,014 contacts →
	Indirect evidence “Our corporate vision shapes everything we do and inspires our employees every day.” Source: RevenueBase Database · checked Sep 17, 2026
2	Ansaldo Energia	Indirect evidence	Genova, ItalyHQ checked Sep 17, 2026	1,001-5,000	2,554 contacts →
	Indirect evidence “Ansaldo Energia Group is an international leader in the power generation industry and a key player in the energy transition.” Source: RevenueBase Database · checked Sep 17, 2026
3	Spirax Sarco	Indirect evidence	Cheltenham, United KingdomHQ checked Sep 17, 2026	5,001-10,000	1,669 contacts →
	Indirect evidence “Expertise \| Solutions \| Sustainability A FTSE-100 company, Spirax Sarco is the world's leading provider of steam system solutions.” Source: RevenueBase Database · checked Sep 17, 2026
4	Danfoss Climate Solutions	Indirect evidence	Nordborg, DenmarkHQ checked Sep 17, 2026	10001+	1,128 contacts →
	Indirect evidence “At Danfoss Climate Solutions, we engineer energy-efficient heating and cooling solutions to help the world get more out of less.” Source: RevenueBase Database · checked Sep 17, 2026
5	Raychem Chemelex	Strong evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	925 contacts →
	Strong evidence “Raychem is a world-leading provider of heat-trace management systems for infrastructure, industrial, commercial and residential buildings, with operations globally.” Source: RevenueBase Database · checked Sep 17, 2026
6	Thermon	Partial evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	901 contacts →
	Partial 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 17, 2026
7	BAXI	Indirect evidence	Warwick, United KingdomHQ checked Sep 17, 2026	1,001-5,000	850 contacts →
	Indirect evidence “We're leading the energy transition to zero carbon, by offering complete residential and commercial heating and hot water solutions.” Source: RevenueBase Database · checked Sep 17, 2026
8	Thermax Babcock & Wilcox Energy Solutions Limited	Indirect evidence	Pune, IndiaHQ checked Sep 17, 2026	1,001-5,000	843 contacts →
	Indirect 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 17, 2026
9	BEW Berliner Energie UND Wärme Gmbh	Indirect evidence	Berlin, GermanyHQ checked Sep 17, 2026	1,001-5,000	732 contacts →
	Indirect evidence “Wärme und Energie für Berlin Als BEW Berliner Energie und Wärme sind wir Teil der Berliner Landesfamilie.” Source: RevenueBase Database · checked Sep 17, 2026
10	Vital Energi Utilities Limited	Indirect evidence	Blackburn, United KingdomHQ checked Sep 17, 2026	501-1,000	709 contacts →
	Indirect evidence “Our 30+ years’ experience have involved us in the creation of major UK district heating networks in areas such as Sheffield, Nottingham and London.” Source: RevenueBase Database · checked Sep 17, 2026
11	Riello	Partial evidence	Legnago, ItalyHQ checked Sep 17, 2026	1,001-5,000	690 contacts →
	Partial 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 17, 2026
12	Bradford White	Partial evidence	Ambler, PA, United StatesHQ checked Sep 17, 2026	1,001-5,000	689 contacts →
	Partial evidence “Bradford White Corporation is an American-owned, full-line manufacturer of residential, commercial, and industrial products for water heating, space heating, combination heating…” Source: RevenueBase Database · checked Sep 17, 2026
13	Hamon Group	Indirect evidence	Seraing, BelgiumHQ checked Sep 17, 2026	1,001-5,000	662 contacts →
	Indirect evidence “The Hamon Group does not exist anymore.” Source: RevenueBase Database · checked Sep 17, 2026
14	Chromalox	Strong evidence	Pittsburgh, PA, United StatesHQ checked Sep 17, 2026	1,001-5,000	635 contacts →
	Strong evidence “When industrial operations depend on heat that simply cannot fail, Chromalox brings unmatched technical knowledge and high‑performance electric heating solutions that stand the…” Source: RevenueBase Database · checked Sep 17, 2026
15	Spirax Group	Indirect evidence	Cheltenham, FranceHQ checked Sep 17, 2026	10001+	560 contacts →
	Indirect evidence “Spirax Group is the new name for Spirax-Sarco Engineering.” Source: RevenueBase Database · checked Sep 17, 2026
16	Stiebel Eltron Group	Indirect evidence	Holzminden, GermanyHQ checked Sep 17, 2026	5,001-10,000	493 contacts →
	Indirect evidence “STIEBEL ELTRON bietet hocheffiziente Produkte und Dienstleistungen für die Heizung, Kühlung, Lüftung und Warmwasserbereitung von Gebäuden.” Source: RevenueBase Database · checked Sep 17, 2026
17	Wolf Gmbh	Indirect evidence	Mainburg, GermanyHQ checked Sep 17, 2026	1,001-5,000	484 contacts →
	Indirect evidence “As a leading supplier of heating and air handling systems, we are perfectly in tune with you.” Source: RevenueBase Database · checked Sep 17, 2026
18	Baymak BDR Thermea Group	Indirect evidence	İstanbul, TürkiyeHQ checked Sep 17, 2026	501-1,000	439 contacts →
	Indirect 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 17, 2026
19	Ferroli Group	Indirect evidence	San Bonifacio, ItalyHQ checked Sep 17, 2026	1,001-5,000	418 contacts →
	Indirect 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 17, 2026
20	Carmichael Engineering LTD	Partial evidence	Montreal, QC, CanadaHQ checked Sep 17, 2026	501-1,000	400 contacts →
	Partial evidence “Dedicated to Excellence For over a century, Carmichael has been delivering expert solutions in HVAC, industrial refrigeration, automation, combustion, energy, and scientific…” Source: RevenueBase Database · checked Sep 17, 2026
21	Kanthal	Indirect evidence	Hallstahammar, ItalyHQ checked Sep 17, 2026	1,001-5,000	399 contacts →
	Indirect evidence “Electrification of heating processes is a key enabler for a fossil-free industry.” Source: RevenueBase Database · checked Sep 17, 2026
22	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
23	Superheat	Indirect evidence	New Lenox, IL, United StatesHQ checked Sep 17, 2026	501-1,000	376 contacts →
	Indirect evidence “Superheat was founded on the principle that cutting-edge technology can offer a Better.” Source: RevenueBase Database · checked Sep 17, 2026
24	Immergas S.P.A	Indirect evidence	Reggio Emilia, ItalyHQ checked Sep 17, 2026	501-1,000	374 contacts →
	Indirect evidence “Produciamo oltre 300 mila caldaie l’anno e commercializziamo apparecchi per riscaldamento e raffrescamento domestico in 50 paesi di tutto il Mondo, con dodici filiali commerciali…” Source: RevenueBase Database · checked Sep 17, 2026
25	API Heat Transfer	Partial evidence	Buffalo, NY, United StatesHQ checked Sep 17, 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 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: industrial heat providers. 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 industrial heat providers.
Partial evidence: Its own public description names part of industrial heat providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial heat providers. 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 6,452 industrial heat providers worldwide

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Industrial heat providers worldwide at a glance

As of Sep 17, 2026

29.9%Verified-email coverage

14.0Average contacts per company

11-50Median size (employees)

0.8%Largest-city concentration · Istanbul

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

2,842

11-50

2,263

51-200

846

201-500

190

501-1,000

1,001-5,000

5,001-10,000

10001+

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 industrial heat providers, 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: 28 countries, largest first: the United States, Germany, the United Kingdom, Italy, France, India, Canada, the Netherlands, Türkiye, Spain and 18 more. Country and city lists for industrial heat providers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “industrial heat providers”. 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 industrial heat providers), 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 industrial heat providers, 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, 27,039 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.

Industrial heat providers by location

29 lists · largest first

Every Industrial heat providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Industrial heat providers based in Pune, India48

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 industrial heat providers, 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 industrial heat providers are there worldwide?

RevenueBase identified 6,452 industrial heat providers 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?

Vaillant Group, headquartered in Remscheid, tops this list with the largest team on record.

Which country has the most industrial heat providers?

The United States leads with 937 companies, followed by Germany (744) and the United Kingdom (729). Every industrial heat providers list by country and city is linked on this page.

Which city has the most industrial heat providers?

Istanbul leads with 50 headquartered companies, followed by Pune (48) and London (42).

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 27,039 verified decision-maker contacts tracked across these 6,452 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.