Company lists · Data refreshed November 2026

Top 25 Geothermal heat pump suppliers worldwide

RevenueBase identified 1,900 company matches for geothermal heat pump suppliers worldwide as of November 2026 and tracks 12,152 professional contacts across them, including 3,333 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for geothermal heat pump 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 November 6, 2026. Country and city lists for geothermal heat pump 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 Nov 6, 2026 How this list was built
1,900Companies
12,152Contacts tracked
3,333Verified emails
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The 25 largest geothermal heat pump suppliers worldwide

Ranked by team size
Top 25 of 1,900 company matches for geothermal heat pump suppliers 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 matchFort Wayne, IN, United StatesHQ recorded Nov 6, 2026201-500229 contacts →

Exact match

“WaterFurnace International, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMatrei, AustriaHQ recorded Nov 6, 2026501-1,000152 contacts →

Exact match

“WIR SORGEN FÜR IHR WOHLBEFINDEN.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchDrogenbos, BelgiumHQ recorded Nov 6, 202610001+136 contacts →

Exact match

“The Vaillant Group is a global market and technology leader in the fields of heating, ventilation and air-conditioning technology.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMount Kisco, NY, United StatesHQ recorded Nov 6, 202651-200124 contacts →

Exact match

“Dandelion Energy is the nation’s leading residential geothermal provider, on a mission to make the world’s most efficient heating and cooling technology accessible to everyone.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchLjungby, SwedenHQ recorded Nov 6, 2026201-500120 contacts →

Exact match

“CTC är en av Europas ledande tillverkare av värmeprodukter.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchNigrán, SpainHQ recorded Nov 6, 202651-200114 contacts →

Exact match

“The Ecoforest group of companies was incorporated in Vigo in 1959 by owner and founder José Carlos Alonso Martinez specializing in the energy sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchArmonk, NY, United StatesHQ recorded Nov 6, 202651-200111 contacts →

Exact match

“Brightcore Energy is a leading renewable energy solutions provider serving commercial, institutional, and government clients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchCologne, GermanyHQ recorded Nov 6, 202651-200104 contacts →

Exact match

“Wir bei Vamo haben es uns zur Mission gemacht grünes, günstiges Heizen mit Wärmepumpen unkompliziert und für jedermann möglich sowie bezahlbar zu machen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchKasendorf, GermanyHQ recorded Nov 6, 20261,001-5,000100 contacts →

Exact match

“Die Wärmepumpe ist unsere DNA 🧬 Unsere Vision ist ein ideales Morgen - unabhängig von fossilen Energiequellen Werde auch du Teil der ait Seit 1998 tragen wir mit…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchOslo, NorwayHQ recorded Nov 6, 202651-20088 contacts →

Exact match

“ABK-Qviller AS is Norway’s largest importer and competency centre for heat pumps, heat absorbers and air conditioners.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLupfig, SwitzerlandHQ recorded Nov 6, 202651-20085 contacts →

Exact match

“STIEBEL ELTRON bietet komfortable und energieeffiziente Lösungen rund um die Themen Erneuerbare Energien, Warmwasser, Klima und Raumheizung.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchShakaskraal, South AfricaHQ recorded Nov 6, 2026201-50082 contacts →

Exact match

“WHO ARE WE?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchAuckland, New ZealandHQ recorded Nov 6, 202651-20081 contacts →

Exact match

“We are New Zealand’s Heat Pump and Air Conditioning Specialists.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchForlì, ItalyHQ recorded Nov 6, 202651-20081 contacts →

Exact match

“Da oltre 40 anni, Fiorini Industries opera nel mercato HVAC & R (Heating Ventilation Air Conditioning & Refrigeration) proponendo a progettisti e costruttori una gamma di prodotti…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBiałystok, PolandHQ recorded Nov 6, 2026201-50081 contacts →

Exact match

“NIBE-BIAWAR to największy w Polsce producent zaawansowanych technologicznie rozwiązań grzewczych do domów jednorodzinnych, budynków wielorodzinnych, obiektów przemysłowych i…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAadorf, SwitzerlandHQ recorded Nov 6, 202651-20076 contacts →

Exact match

“Seit 1989 begeistern wir unsere Kunden mit massgeschneiderten Lösungen und unvergleichlichen Dienstleistungen im Bereich der erneuerbaren Energien.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchGreenville, IL, United StatesHQ recorded Nov 6, 202651-20076 contacts →

Exact match

“Enertech Global is a leading manufacturer and visionary in the geothermal heating and cooling industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchPirkkala, FinlandHQ recorded Nov 6, 202651-20072 contacts →

Exact match

“Rototec provides geoenergy based heating and cooling for large properties.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchHoniton, United KingdomHQ recorded Nov 6, 202651-20070 contacts →

Exact match

“As the UK's largest supplier of warm water underfloor heating and integrated renewables, Nu‑Heat delivers fully designed, energy efficient systems to installers, housebuilders…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-20069 contacts →

Exact match

“Rendesco is the UK’s leading clean energy tech developer and operator, focusing on the electrification of heat using heat pumps and heat networks to decarbonise Britain’s…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchValongo, PortugalHQ recorded Nov 6, 2026201-50068 contacts →

Exact match

“Fundada em 2001 e com atividade a nível nacional e internacional a DFS AVAC inaugurou o seu negócio na área da comercialização de sistemas de aquecimento e arrefecimento de baixa…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchMurfreesboro, TN, United StatesHQ recorded Nov 6, 202651-20063 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchDuizel, NetherlandsHQ recorded Nov 6, 202651-20060 contacts →

Exact match

“Weheat is a leader in sustainable heating solutions, specialized in heat pumps.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchNew Brighton, MN, United StatesHQ recorded Nov 6, 202611-5055 contacts →

Exact match

“Darcy Solutions is on a mission to put Geothermal Everywhere.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchLaurel, PA, United StatesHQ recorded Nov 6, 202651-20055 contacts →

Exact match

“We at Allied Well Drilling are a full service commercial and residential gethermal heating/cooling system installer, specializing in vertically drilled closed loop systems.”

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

Showing 25 of 1,900 geothermal heat pump suppliers worldwide

See the full list, filter by size, metro and specialty, and access 3,333 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Geothermal heat pump suppliers worldwide at a glance

As of Nov 6, 2026
27.4%Verified-email coverage
6.4Average contacts per company
1-10Median size (employees)
0.5%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
984
11-50
647
51-200
146
201-500
37
501-1,000
16
1,001-5,000
8
10001+
4

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 geothermal heat pump suppliers are linked below.
What qualifies
Company records worldwide whose business descriptions match “geothermal heat pump 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 3,333 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.

Geothermal heat pump suppliers by location

14 lists · largest first

Every Geothermal heat pump 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 “geothermal heat pump suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many geothermal heat pump suppliers are there worldwide?

RevenueBase identified 1,900 company matches for geothermal heat pump suppliers 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?

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

Which country has the most geothermal heat pump suppliers?

The United States leads with 240 companies, followed by France (197) and the United Kingdom (156). Every geothermal heat pump suppliers list by country and city is linked on this page.

Which city has the most geothermal heat pump suppliers?

London leads with 10 company records, followed by Foshan (9) and Berlin (8).

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 3,333 professional contacts with verified work emails tracked across these 1,900 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.