Company lists · Data refreshed November 2026

Top 25 Renewable energy heating contractors worldwide

RevenueBase identified 12,901 company matches for renewable energy heating contractors worldwide as of November 2026 and tracks 81,176 professional contacts across them, including 19,933 with verified work emails. The United Kingdom is the largest market and London the largest hub.

This list covers company matches for renewable energy heating 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 November 6, 2026. Country and city lists for renewable energy heating 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 Nov 6, 2026 How this list was built
12,901Companies
81,176Contacts tracked
19,933Verified emails
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The 25 largest renewable energy heating contractors worldwide

Ranked by team size
Top 25 of 12,901 company matches for renewable energy heating contractors worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchLevallois-perret, FranceHQ recorded Nov 6, 20261,001-5,0001,054 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 · Nov 6, 2026 · View company records in RevenueBase
2Exact matchWarwick, United KingdomHQ recorded Nov 6, 20261,001-5,000865 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 · Nov 6, 2026 · View company records in RevenueBase
3Exact matchLelystad, NetherlandsHQ recorded Nov 6, 20261,001-5,000813 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchStockholm, SwedenHQ recorded Nov 6, 2026201-500593 contacts →

Exact match

“Aira is the next generation home energy champion.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchZwolle, NetherlandsHQ recorded Nov 6, 20261,001-5,000464 contacts →

Exact match

“Welkom in de boeiende wereld van de energietransitie.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchBerlin, GermanyHQ recorded Nov 6, 20261,001-5,000446 contacts →

Exact match

“Gemeinsam machen wir Wohnen klimaneutral!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSan Bonifacio, ItalyHQ recorded Nov 6, 20261,001-5,000442 contacts →

Exact match

“Feel Well.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchLisbon, PortugalHQ recorded Nov 6, 2026201-500379 contacts →

Exact match

“Greenvolt Next is your guide to change the way on how you produce, consume, and share energy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchEl Cajon, CA, United StatesHQ recorded Nov 6, 2026501-1,000343 contacts →

Exact match

“Ranked #1 in Solar + Battery Installation in America by "Solar Power World" Go Solar American Style!#1 Veteran Owned Solar Company in California Solar Panels.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBraeside, AustraliaHQ recorded Nov 6, 2026201-500323 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 · Nov 6, 2026 · View company records in RevenueBase
11Exact matchParis, FranceHQ recorded Nov 6, 2026201-500311 contacts →

Exact match

“Effy, spécialiste de l’efficience énergétique.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMadrid, SpainHQ recorded Nov 6, 2026501-1,000311 contacts →

Exact match

“Grupo Remica se crea en 1984 como empresa de instalación y mantenimiento de sistemas de calefacción, climatización y ACS.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 2026n/a267 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Nov 6, 20261,001-5,000261 contacts →

Exact match

“Sureserve aim to be the trusted partner of choice to the social housing and related public sector in delivering essential and affordable heating, energy savings, and compliance…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchCairo, EgyptHQ recorded Nov 6, 2026201-500245 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 · Nov 6, 2026 · View company records in RevenueBase
16Exact matchVilnius, LithuaniaHQ recorded Nov 6, 202651-200239 contacts →

Exact match

“Ignitis“ yra atsinaujinančios energijos bendrovės „Ignitis grupė“ dalis.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchZierikzee, NetherlandsHQ recorded Nov 6, 2026201-500221 contacts →

Exact match

“De energietransitie is één van de grootste maatschappelijke opgaven, maar wij begrijpen dat jouw wooncomfort net zo belangrijk is.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchZimbabweHQ recorded Nov 6, 202651-200215 contacts →

Exact match

“Dorman projects”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchLlinars Del Vallès, SpainHQ recorded Nov 6, 2026501-1,000205 contacts →

Exact match

“SolarProfit es la compañía líder especializada en energías renovables, como energía solar fotovoltaica y sistemas de aerotermia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchZwanenburg, NetherlandsHQ recorded Nov 6, 2026201-500199 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 · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBelper, United KingdomHQ recorded Nov 6, 2026501-1,000195 contacts →

Exact match

“What does it take to deliver confidence at every stage of the heating journey?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSteinhagen, GermanyHQ recorded Nov 6, 2026201-500188 contacts →

Exact match

“Mit Premium-Photovoltaikanlagen und Wärmepumpen im Komplettpaket erleichtern wir seit 2010 Privat- und Gewerbekunden bundesweit den Umstieg auf eine unabhängige, nachhaltige…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchDania Beach, FL, United StatesHQ recorded Nov 6, 2026201-500177 contacts →

Exact match

“Hill York is a full service contractor that offers a full array of energy efficient air-conditioning services from concept to completion, maintenance to repair and everything in…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchColomiers, FranceHQ recorded Nov 6, 202651-200172 contacts →

Exact match

“Agtherm est une PME indépendante dont l'activité dans le domaine du génie climatique et de la performance énergétique, vous assure la sécurité et la qualité de ses interventions…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchLudres Cedex, FranceHQ recorded Nov 6, 2026501-1,000164 contacts →

Exact match

“Groupe multirégional indépendant dédié aux activités de génie climatique : • Exploitation de chaufferies collectives toutes énergies et toutes puissances, • Maintenance de…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 12,901 renewable energy heating contractors worldwide

See the full list, filter by size, metro and specialty, and access 19,933 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Renewable energy heating contractors worldwide at a glance

As of Nov 6, 2026
24.6%Verified-email coverage
6.3Average contacts per company
1-10Median size (employees)
1.0%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
6,965
11-50
4,230
51-200
868
201-500
142
501-1,000
34
1,001-5,000
30
5,001-10,000
4
10001+
7

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 renewable energy heating contractors are linked below.
What qualifies
Company records worldwide whose business descriptions match “renewable energy heating 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 19,933 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 November 6, 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.

Renewable energy heating contractors by location

31 lists · largest first

Every Renewable energy heating 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 “renewable energy heating contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many renewable energy heating contractors are there worldwide?

RevenueBase identified 12,901 company matches for renewable energy heating contractors worldwide as of November 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?

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

Which country has the most renewable energy heating contractors?

The United Kingdom leads with 2,313 companies, followed by France (1,634) and Germany (1,172). Every renewable energy heating contractors list by country and city is linked on this page.

Which city has the most renewable energy heating contractors?

London leads with 126 company records, followed by Madrid (49) and Berlin (46).

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 19,933 professional contacts with verified work emails tracked across these 12,901 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 November 6, 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.