Company lists · Data refreshed November 2026

Top 25 Ground source heat pump contractors worldwide

RevenueBase identified 954 company matches for ground source heat pump contractors worldwide as of November 2026 and tracks 4,690 professional contacts across them, including 1,407 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for ground source heat pump 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 ground source heat pump 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
954Companies
4,690Contacts tracked
1,407Verified emails
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The 25 largest ground source heat pump contractors worldwide

Ranked by team size
Top 25 of 954 company matches for ground source heat pump 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 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 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
4Exact 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
5Exact 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
6Exact 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
7Exact 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
8Exact 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
9Exact 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
10Exact 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
11Exact matchDiever, NetherlandsHQ recorded Nov 6, 202651-20031 contacts →

Exact match

“Onze passie: meer comfort, minder energie.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchBeaucouzé, FranceHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“Spécialistes des systèmes de chauffage basés sur les énergies renouvelables, implantés à Beaucouzé, nous intervenons sur l'ensemble de la région angevine (à Angers, Saumur…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchRochester, NY, United StatesHQ recorded Nov 6, 202651-20029 contacts →

Exact match

“John Betlem started the company in 1941, and John Betlem Heating & Cooling, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact 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
15Exact matchFort Worth, TX, United StatesHQ recorded Nov 6, 202651-20028 contacts →

Exact match

“Since 1974, Century Mechanical Contractors, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchApex, NC, United StatesHQ recorded Nov 6, 202651-20027 contacts →

Exact match

“We are a full-service HVAC, Plumbing, Electrical company locally owned and operated since 1996.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBurlington, KY, United StatesHQ recorded Nov 6, 202651-20027 contacts →

Exact match

“Arronco Comfort Air, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchSwedenHQ recorded Nov 6, 202611-5027 contacts →

Exact match

“Kylslaget är Sveriges ledande företag inom installation och service av luft/luftvärmepumpar.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact 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
20Exact matchTranas, SwedenHQ recorded Nov 6, 2026201-50025 contacts →

Exact match

“På IVT har vi varit drivande i utvecklingen av värmepumpar i över 40 år.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchAlexandria, AustraliaHQ recorded Nov 6, 202651-20025 contacts →

Exact match

“Alliance Climate Control is dedicated to your year round comfort and life style.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchEnglewood, FL, United StatesHQ recorded Nov 6, 202611-5024 contacts →

Exact match

“Offering high quality, Energy Efficient and Eco-Friendly Geothermal Pool / Spa Heating & Cooling as well as Geothermal Air Conditioning in the whole state of Florida.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact 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
24Exact matchLewes, DE, United KingdomHQ recorded Nov 6, 202651-20022 contacts →

Exact match

“Atlantic Refrigeration & Air Conditioning, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchIndependence, KY, United StatesHQ recorded Nov 6, 2026201-50022 contacts →

Exact match

“HVAC Specialists We install single and multi-family new construction systems as well as replacement systems.”

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

Showing 25 of 954 ground source heat pump contractors worldwide

See the full list, filter by size, metro and specialty, and access 1,407 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Ground source heat pump contractors worldwide at a glance

As of Nov 6, 2026
30.0%Verified-email coverage
4.9Average contacts per company
1-10Median size (employees)
0.8%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
558
11-50
310
51-200
44
201-500
6

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 source heat pump contractors are linked below.
What qualifies
Company records worldwide whose business descriptions match “ground source heat pump 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 1,407 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 source heat pump contractors by location

7 lists · largest first

Every Ground source heat pump contractors 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 source heat pump contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many ground source heat pump contractors are there worldwide?

RevenueBase identified 954 company matches for ground source heat pump 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?

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

Which country has the most ground source heat pump contractors?

The United States leads with 184 companies, followed by France (129) and the United Kingdom (117). Every ground source heat pump contractors list by country and city is linked on this page.

Which city has the most ground source heat pump contractors?

London leads with 8 company records, followed by Calgary (4) and Berlin (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 1,407 professional contacts with verified work emails tracked across these 954 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.