Company lists · Data refreshed October 2026

Top 25 Gas fired boilers suppliers worldwide

RevenueBase identified 4,505 company matches for gas fired boilers suppliers worldwide as of October 2026 and tracks 48,102 professional contacts across them, including 12,721 with verified work emails. The United Kingdom is the largest market and London the largest hub.

This list covers company matches for gas fired boilers suppliers worldwide, 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 26, 2026. Country and city lists for gas fired boilers suppliers follow the table.

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 26, 2026 How this list was built
4,505Companies
48,102Contacts tracked
12,721Verified emails
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The 25 largest gas fired boilers suppliers worldwide

Ranked by team size
Top 25 of 4,505 company matches for gas fired boilers suppliers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 26, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchRemscheid, GermanyHQ recorded Oct 26, 202610001+3,153 contacts →

Exact match

“Our corporate vision shapes everything we do and inspires our employees every day.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
2Exact matchLevallois-perret, FranceHQ recorded Oct 26, 20261,001-5,000984 contacts →

Exact match

“A major player in the energy transition and leader in home services, PROXISERVE provides its customers with innovative solutions enabling them to reduce their energy consumption…”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
3Exact matchWarwick, United KingdomHQ recorded Oct 26, 20261,001-5,000884 contacts →

Exact match

“We're leading the energy transition to zero carbon, by offering complete residential and commercial heating and hot water solutions.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
4Exact matchPune, IndiaHQ recorded Oct 26, 20261,001-5,000862 contacts →

Exact match

“Thermax Babcock & Wilcox Energy Solutions (TBWES), a wholly-owned subsidiary of Thermax Limited, provides equipment and complete solutions for generating steam for process and…”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
5Exact matchLelystad, NetherlandsHQ recorded Oct 26, 20261,001-5,000789 contacts →

Exact match

“Sinds het ontstaan in 1947 is Feenstra marktleider in installatietechniek met een nationale dekking.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
6Exact matchLegnago, ItalyHQ recorded Oct 26, 20261,001-5,000730 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
7Exact matchThomasville, GA, United StatesHQ recorded Oct 26, 20261,001-5,000665 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 26, 2026 · View company records in RevenueBase
8Exact matchCape Town, South AfricaHQ recorded Oct 26, 20261,001-5,000651 contacts →

Exact match

“John Thompson is a leader in energy and environmental solutions through value engineering and innovation.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
9Exact matchGebze, TürkiyeHQ recorded Oct 26, 2026501-1,000500 contacts →

Exact match

“Since its establishment in 1954 Alarko Sanayi ve Ticaret A.Ş.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
10Exact matchİstanbul, TürkiyeHQ recorded Oct 26, 2026501-1,000472 contacts →

Exact match

“1969 yılında faaliyetlerine başlayan ve 2013 yılı itibarıyla iklimlendirme sektöründe Avrupa’nın ilk üç şirketi arasında yer alan BDR Thermea Group bünyesine katılan Baymak…”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
11Exact matchBumi Serpong Damai City Tangerang Selatan, IndonesiaHQ recorded Oct 26, 2026201-500454 contacts →

Exact match

“Euroasiatic (EA) is a Heat & Power Generation Solutions Provider.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
12Exact matchSan Bonifacio, ItalyHQ recorded Oct 26, 20261,001-5,000435 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
13Exact matchNerac, FranceHQ recorded Oct 26, 2026501-1,000404 contacts →

Exact match

“BABCOCK WANSON offers a complete range of products and services for industrial boiler house.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
14Exact matchBraeside, AustraliaHQ recorded Oct 26, 2026201-500317 contacts →

Exact match

“Following Rinnai's international origins dating back more than 100 years, Rinnai Australia was established 50 years ago and since then has been providing Australians with the best…”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
15Exact matchSan Nicolás De Los Garza, MexicoHQ recorded Oct 26, 2026501-1,000315 contacts →

Exact match

“CERREY, a leading Mexican company, is one of the main manufacturers of steam generators in the Americas.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
16Exact matchHull, United KingdomHQ recorded Oct 26, 2026501-1,000302 contacts →

Exact match

“The UK’s leading heating manufacturer, providing reliable, sustainable warmth through boilers, heat pumps and controls Rated Excellent on Trustpilot Award-winning Keeping Homes…”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
17Exact matchMorlaix, FranceHQ recorded Oct 26, 2026501-1,000272 contacts →

Exact match

“Sermeta is the world leading manufacturer of stainless steel heat exchanger for gas condensing boilers.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
18Exact matchOxnard, United StatesHQ recorded Oct 26, 2026501-1,000245 contacts →

Exact match

“For over 70 years, Raypak has been the world's leading manufacturer of copper finned boilers and heaters.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
19Exact matchMalatya, TürkiyeHQ recorded Oct 26, 2026501-1,000232 contacts →

Exact match

“Mimsan Grup; Yakma ve Enerji Sistemleri Üreten 41 Yıllık Bir Deneyime Sahip Endüstri Firmasıdır.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
20Exact matchAtlanta, GA, United StatesHQ recorded Oct 26, 2026201-500212 contacts →

Exact match

“Clyde Industries, a subsidiary of Kadant Inc, headquartered in Atlanta, Georgia, is a leading provider of boiler efficiency solutions for the most demanding applications in the…”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
21Exact matchColmar, FranceHQ recorded Oct 26, 2026201-500207 contacts →

Exact match

“Le Groupe Weishaupt Avec près de 3.400 collaborateurs, le Groupe Weishaupt compte parmi les entreprises leader dans le domaine des brûleurs, chaudières à condensation, pompes à…”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
22Exact matchCoevorden, NetherlandsHQ recorded Oct 26, 2026201-500203 contacts →

Exact match

“Intergas: an introduction.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
23Exact matchDallas, TX, United StatesHQ recorded Oct 26, 2026201-500198 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 26, 2026 · View company records in RevenueBase
24Exact matchBassano Del Grappa, ItalyHQ recorded Oct 26, 2026501-1,000198 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
25Exact matchZwanenburg, NetherlandsHQ recorded Oct 26, 2026201-500197 contacts →

Exact match

“Bonarius Bedrijven De naam Bonarius was lange tijd synoniem voor de aanleg en het onderhoud van cv-installaties.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase

Showing 25 of 4,505 gas fired boilers suppliers worldwide

See the full list, filter by size, metro and specialty, and access 12,721 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Gas fired boilers suppliers worldwide at a glance

As of Oct 26, 2026
26.4%Verified-email coverage
10.7Average contacts per company
1-10Median size (employees)
1.0%Largest-city concentration · London
Oct 26, 2026Page data refreshed

Companies by employee count

1-10
2,278
11-50
1,447
51-200
456
201-500
102
501-1,000
47
1,001-5,000
30
5,001-10,000
8
10001+
10

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for gas fired boilers suppliers are linked below.
What qualifies
Company records worldwide whose business descriptions match “gas fired boilers suppliers” 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. 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 12,721 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 26, 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.

Gas fired boilers suppliers by location

18 lists · largest first

Every Gas fired boilers suppliers 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 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 “gas fired boilers suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many gas fired boilers suppliers are there worldwide?

RevenueBase identified 4,505 company matches for gas fired boilers suppliers worldwide 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?

Vaillant Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most gas fired boilers suppliers?

The United Kingdom leads with 795 companies, followed by the United States (430) and France (359). Every gas fired boilers suppliers list by country and city is linked on this page.

Which city has the most gas fired boilers suppliers?

London leads with 45 company records, followed by Istanbul (23) and Madrid (23).

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 12,721 professional contacts with verified work emails tracked across these 4,505 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 26, 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.