Company lists · Data refreshed November 2026

Top 25 Ground loop heat pump installers worldwide

RevenueBase identified 454 company matches for ground loop heat pump installers worldwide as of November 2026 and tracks 2,424 professional contacts across them, including 818 with verified work emails. The United Kingdom is the largest market and London the largest hub.

This list covers company matches for ground loop heat pump installers 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 ground loop heat pump installers 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
454Companies
2,424Contacts tracked
818Verified emails
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The 25 largest ground loop heat pump installers worldwide

Ranked by team size
Top 25 of 454 company matches for ground loop heat pump installers 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 matchTruro, United KingdomHQ recorded Nov 6, 202651-200134 contacts →

Exact match

“The UK’s heating system is stuck in the past, costing people and the planet too much.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact 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
3Exact 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
4Exact 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
5Exact matchAncaster, ON, CanadaHQ recorded Nov 6, 202651-20057 contacts →

Exact match

“For all business inquiries, contact the Geosource team at info@geosourceenergy.com- Devoted to the pursuit of innovation and excellence as a leading geoexchange specialist, we are…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact 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
7Exact 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
8Exact matchEspoo, FinlandHQ recorded Nov 6, 202651-20040 contacts →

Exact match

“Tarjoamme maalämpöä palveluna yrityksille ja taloyhtiöille.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchNewton, MA, United StatesHQ recorded Nov 6, 202651-20039 contacts →

Exact match

“Forge makes home comfort simple and sustainable with energy-efficient heat pump installations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchGrand Rapids, MI, United StatesHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“Geothermal Systems are becoming a critical component in the effort to make buildings more environmentally friendly.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchVantaa, FinlandHQ recorded Nov 6, 202651-20028 contacts →

Exact match

“Tom Allen Senera Oy is one of the leading providers of heating and cooling solutions to residential and commercial buildings in Finland.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchKelowna, BC, CanadaHQ recorded Nov 6, 202611-5026 contacts →

Exact match

“GeoTility has been designing, installing, and servicing heating and cooling systems for more than 30 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchKirdford, United KingdomHQ recorded Nov 6, 202651-20022 contacts →

Exact match

“Nicholls Boreholes & Ground Source is an established, industry leading, family-run, specialist drilling company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchNuneaton, United KingdomHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“Our aim is to provide renewable energy systems for properties that would clearly benefit from them.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchStockholm, SwedenHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“Welcome to DREM, a company that specializes in simplifying the deployment of heat pumps for residential properties.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchMaisse (91), FranceHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Expert en forage géothermique de surface.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchPargas, FinlandHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“Vesi ja lämpö omasta maasta!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchPerth, United KingdomHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“IMS Heat Pumps designs and installs air source, ground source and water source heat pump systems for self-build, renovation, retrofit, custom-build and new-build projects across…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchHoegaarden, BelgiumHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“GeoTherma gelooft dat alle thermische energienoden in gebouwen en woningen moeten geëlektrificeerd worden met behulp van warmtepompen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchPotters Bar, United KingdomHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“Better Planet was founded in 2004 with a vision to make it easier and more affordable to use green alternatives for heating and electricity.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBarrington, United StatesHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“G-Core Limited are experts in the design, installation, commissioning, and maintenance of ground source, water source, and air source heat pump systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchFalkirk, United KingdomHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Having previously worked for a large national mechanical electrical contractor in the renewable energy department, we saw a gap in the renewable energy market for quality ground…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchDalfsen, NetherlandsHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“CIUS Techniek B.V.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBromma, SwedenHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Energipartner har ända sedan starten 1984 fokuserat på att spara energi i fastigheter, och vi har tusentals nöjda kunder.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchBaltimore, MD, United StatesHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“In the 30 years of operation, Chesapeake Geosystems has earned a reputation as a geothermal contracting firm that delivers projects on time and on budget.”

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

Showing 25 of 454 ground loop heat pump installers worldwide

See the full list, filter by size, metro and specialty, and access 818 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Ground loop heat pump installers worldwide at a glance

As of Nov 6, 2026
33.7%Verified-email coverage
5.3Average contacts per company
1-10Median size (employees)
1.3%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
263
11-50
150
51-200
25
201-500
1

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 ground loop heat pump installers are linked below.
What qualifies
Company records worldwide whose business descriptions match “ground loop heat pump installers” 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 818 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.

Ground loop heat pump installers by location

3 lists · largest first

Every Ground loop heat pump installers 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 “ground loop heat pump installers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many ground loop heat pump installers are there worldwide?

RevenueBase identified 454 company matches for ground loop heat pump installers 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?

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

Which country has the most ground loop heat pump installers?

The United Kingdom leads with 69 companies, followed by the United States (68) and the Netherlands (35). Every ground loop heat pump installers list by country and city is linked on this page.

Which city has the most ground loop heat pump installers?

London leads with 6 company records, followed by Toronto (3) and Truro (3).

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 818 professional contacts with verified work emails tracked across these 454 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.