Company lists · Data refreshed October 2026

Top 25 District heating installation contractors worldwide

Name: District heating installation contractors worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 11, 2026 13,889 companies tracked

RevenueBase identified 13,889 company matches for district heating installation contractors worldwide as of October 2026 and tracks 88,563 professional contacts across them, including 22,819 with verified work emails. The United Kingdom is the largest market and London the largest hub.

This list covers company matches for district heating installation contractors 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 11, 2026. Country and city lists for district heating installation contractors 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 11, 2026 How this list was built

13,889Companies

88,563Contacts tracked

22,819Verified emails

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The 25 largest district heating installation contractors worldwide

Ranked by team size

Top 25 of 13,889 company matches for district heating installation contractors worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 11, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Vaillant Group	Exact match	Remscheid, GermanyHQ recorded Oct 11, 2026	10001+	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 11, 2026 · View company records in RevenueBase
2	Proxiserve	Exact match	Levallois-perret, FranceHQ recorded Oct 11, 2026	1,001-5,000	984 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 11, 2026 · View company records in RevenueBase
3	BAXI	Exact match	Warwick, United KingdomHQ recorded Oct 11, 2026	1,001-5,000	884 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 11, 2026 · View company records in RevenueBase
4	Feenstra	Exact match	Lelystad, NetherlandsHQ recorded Oct 11, 2026	1,001-5,000	789 contacts →
	Exact match “Sinds het ontstaan in 1947 is Feenstra marktleider in installatietechniek met een nationale dekking.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
5	Vital Energi	Exact match	Blackburn, United KingdomHQ recorded Oct 11, 2026	501-1,000	749 contacts →
	Exact match “Our 30+ years’ experience have involved us in the creation of major UK district heating networks in areas such as Sheffield, Nottingham and London.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
6	Wolf Gmbh	Exact match	Mainburg, GermanyHQ recorded Oct 11, 2026	1,001-5,000	493 contacts →
	Exact match “As a leading supplier of heating and air handling systems, we are perfectly in tune with you.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
7	Euroasiatic	Exact match	Bumi Serpong Damai City Tangerang Selatan, IndonesiaHQ recorded Oct 11, 2026	201-500	454 contacts →
	Exact match “Euroasiatic (EA) is a Heat & Power Generation Solutions Provider.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
8	Ferroli Group	Exact match	San Bonifacio, ItalyHQ recorded Oct 11, 2026	1,001-5,000	435 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 11, 2026 · View company records in RevenueBase
9	Logstor District Heating Solutions	Exact match	DenmarkHQ recorded Oct 11, 2026	1,001-5,000	422 contacts →
	Exact match “With more than 50 years of research, development and experience, we have become the leading manufacturer of pre-insulated pipe systems.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
10	John W. Danforth Company	Exact match	Tonawanda, NY, United StatesHQ recorded Oct 11, 2026	501-1,000	410 contacts →
	Exact match “We are powered by the best people in the industry.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
11	Femco Faisal Electro-Mechanical Co. LTD	Exact match	Al Khobar, Saudi ArabiaHQ recorded Oct 11, 2026	1,001-5,000	341 contacts →
	Exact match “Faisal Electro - Mechanical Co.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
12	Rinnai Australia	Exact match	Braeside, AustraliaHQ recorded Oct 11, 2026	201-500	317 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 11, 2026 · View company records in RevenueBase
13	Ennatuurlijk B.V	Exact match	Eindhoven, NetherlandsHQ recorded Oct 11, 2026	201-500	298 contacts →
	Exact match “Ennatuurlijk koppelt lokale producenten en ontvangers van duurzame warmte en koude aan elkaar.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
14	Weil-Mclain	Exact match	Burr Ridge, IL, United StatesHQ recorded Oct 11, 2026	501-1,000	294 contacts →
	Exact match “Weil-McLain® is a leading North American designer and manufacturer of hydronic comfort heating systems for residential, commercial and institutional buildings since 1881.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
15	Vicinity Energy	Exact match	Boston, MA, United StatesHQ recorded Oct 11, 2026	501-1,000	289 contacts →
	Exact match “Vicinity Energy is a leading district energy company that owns and operates the largest portfolio of district energy systems nationwide, providing steam, hot water, and chilled…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
16	Fjernvarme FYN A S	Exact match	Odense C, DenmarkHQ recorded Oct 11, 2026	201-500	281 contacts →
	Exact match “Fjernvarmeforsyningen er en nonprofit virksomhed, hvor fjernvarmeprisen er omkostningsbestemt, og økonomisk følger princippet "hvile i sig selv".” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
17	GEM Incorporated	Exact match	Walbridge, OH, United StatesHQ recorded Oct 11, 2026	1,001-5,000	277 contacts →
	Exact match “Contractor for Life At GEM Inc, we’re experienced problem solvers with the insight, integrity and resources to see you through your toughest challenges.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
18	DH	Exact match	Istanbul, TürkiyeHQ recorded Oct 11, 2026	n/a	264 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
19	Aäsgard	Exact match	Rennes, FranceHQ recorded Oct 11, 2026	501-1,000	263 contacts →
	Exact match “Aäsgard est une enseigne de distribution, d’installation et d'entretien de poêles à bois et à granulés haut de gamme, au design contemporain, d’origine essentiellement scandinave…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
20	ELCO	Exact match	Kehlen, LuxembourgHQ recorded Oct 11, 2026	201-500	257 contacts →
	Exact match “Electrical installations in buildings Heating Climatisation Facility Management” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
21	ECS	Exact match	Cairo, EgyptHQ recorded Oct 11, 2026	201-500	233 contacts →
	Exact match “Energy & Contracting Solutions (ECS) is one of Egypt’s leading players in sustainable energy and contracting solutions, developing a solid track record of over 350 projects…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
22	ADC Energy Systems	Exact match	Dubai, United Arab EmiratesHQ recorded Oct 11, 2026	501-1,000	224 contacts →
	Exact match “ADC is a leading company in providing EPC (Engineer, Procure and Construct) solutions for Industrial and Commercial Cooling, Heating, Refrigeration and Energy Systems serving the…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
23	Energy Air, INC	Exact match	Orlando, FL, United StatesHQ recorded Oct 11, 2026	201-500	219 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
24	Knnd Associates Pvt. LTD	Exact match	Bangalore, IndiaHQ recorded Oct 11, 2026	201-500	206 contacts →
	Exact match “M/s.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
25	Baxi Italia	Exact match	Bassano Del Grappa, ItalyHQ recorded Oct 11, 2026	501-1,000	198 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 11, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “district heating installation contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 13,889 district heating installation contractors worldwide

See the full list, filter by size, metro and specialty, and access 22,819 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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District heating installation contractors worldwide at a glance

As of Oct 11, 2026

25.8%Verified-email coverage

6.4Average contacts per company

1-10Median size (employees)

0.8%Largest-city concentration · London

Oct 11, 2026Page data refreshed

Companies by employee count

1-10

7,471

11-50

4,548

51-200

1,083

201-500

177

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

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 district heating installation contractors are linked below.
What qualifies: Company records worldwide whose business descriptions match “district heating installation contractors” 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 22,819 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 11, 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.

District heating installation contractors by location

33 lists · largest first

Every District heating installation contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 “district heating installation contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many district heating installation contractors are there worldwide?

RevenueBase identified 13,889 company matches for district heating installation contractors 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 district heating installation contractors?

The United Kingdom leads with 1,800 companies, followed by Germany (1,630) and France (1,500). Every district heating installation contractors list by country and city is linked on this page.

Which city has the most district heating installation contractors?

London leads with 109 company records, followed by Berlin (62) and Rome (49).

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 22,819 professional contacts with verified work emails tracked across these 13,889 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 11, 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.