Company lists · Data refreshed November 2026

Top 25 Geothermal cooperatives based in the United Kingdom

RevenueBase identified 121 company matches for geothermal cooperatives associated with the United Kingdom as of November 2026 and tracks 868 professional contacts across them, including 349 with verified work emails. London is the largest hub.

This list covers company matches for geothermal cooperatives associated with the United Kingdom, 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.

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
121Companies
868Contacts tracked
349Verified emails
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The 25 largest geothermal cooperatives based in the United Kingdom

Ranked by team size
Top 25 of 121 company matches for geothermal cooperatives based in the United Kingdom, 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 matchSudbrooke, United KingdomHQ recorded Nov 6, 202651-20085 contacts →

Exact match

“Star Energy Group plc is a British energy business.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact 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
4Exact matchBath, United KingdomHQ recorded Nov 6, 202611-5037 contacts →

Exact match

“We are a not for profit community business, committed to putting people at the heart of the energy transition.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“Founded in 2014, South East London Community Energy is a local energy co-operative that is dedicated to a cleaner and fairer energy future through local energy generation…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5024 contacts →

Exact match

“RetrofitWorks is a ‘not for private profit’ co-operative, matching communities & homeowners who want to retrofit their homes, with local, quality assured SME assessors and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchBristol, United KingdomHQ recorded Nov 6, 20261-1019 contacts →

Exact match

“Bristol Energy Cooperative is a community owned, social enterprise, installing and owning renewable and efficient energy infrastructure in Bristol and the surrounding region.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchRedruth, United KingdomHQ recorded Nov 6, 20261-1018 contacts →

Exact match

“GEL has brought the most experienced geothermal engineers together with leading industry partners to develop the UK's first large-scale geothermal energy plant in Cornwall.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchManchester, United KingdomHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“We believe the process of improving our homes to 2050 standards will be quicker, easier and cheaper if we work together, teaming up with friends and neighbours to share…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchEdinburgh City, United KingdomHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“We are an award-winning geothermal company based in Edinburgh, Scotland and a leading specialist in all aspects of the UK’s geothermal resources.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-1014 contacts →

Exact match

“Energetik is a limited company that has been set up and is wholly owned by Enfield Council.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchBrighton, United KingdomHQ recorded Nov 6, 20261-1014 contacts →

Exact match

“Brighton Energy Co-op is a simple idea: everyone puts in a bit of cash and collectively builds big solar energy systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-1011 contacts →

Exact match

“Smart, sustainable heating and cooling, powered by the earth.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-1010 contacts →

Exact match

“At Power Up, we help community organisations cut energy costs, reduce carbon emissions, and build long-term energy resilience.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchExeter, United KingdomHQ recorded Nov 6, 20261-1010 contacts →

Exact match

“Exeter Community Energy is a new innovative social enterprise that enables local people to take ownership of renewable energy projects in Exeter.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAylesbury, United KingdomHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“We specialise in Geothermal Ground Source Boreholes and Water Boreholes up to 300m.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Ripple enables energy consumers around the world to part own large scale wind farms and solar parks and have the clean, low cost electricity they produce supplied to their homes…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchShrewsbury, United KingdomHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Sharenergy is a not-for-profit co-op working with communities to help them find, develop and own renewable energy installations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchCornwall, United KingdomHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Eden Geothermal Ltd is a partnership between Eden Project, EGS Energy Ltd, and Bestec (UK) Ltd, set up to unlock the geothermal energy deep in the granite beneath Cornwall.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBarnstaple, United KingdomHQ recorded Nov 6, 20261-108 contacts →

Exact match

“Energy Lab has been supporting specifiers, developers and installers of geothermal and air source heat pumps since 2012.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchEast Sussex, United KingdomHQ recorded Nov 6, 20261-107 contacts →

Exact match

“Energise Sussex Coast is a community benefit co-operative local to East Sussex.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-507 contacts →

Exact match

“The Geothermal Energy Forum a new, dedicated platform within the REA, to help drive growth in this high potential sector was created following the acquisition of GEAA by the REA…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Community-Led Access to Renewable Energy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBordon, United KingdomHQ recorded Nov 6, 202611-506 contacts →

Exact match

“At Onsen Energy, we provide homeowners, developers, sports clubs, schools and the wider energy market with ground source heating systems and drilling services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchBurnham-on-sea | Weston-super-mare, United KingdomHQ recorded Nov 6, 20261-106 contacts →

Exact match

“Burnham and Weston Energy CIC is a local energy enterprise that generates electricity from the sun and income to support community projects in the Burnham-on-Sea and…”

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

Showing 25 of 121 geothermal cooperatives based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 349 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Geothermal cooperatives based in the United Kingdom at a glance

As of Nov 6, 2026
40.2%Verified-email coverage
7.2Average contacts per company
1-10Median size (employees)
20.7%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
76
11-50
35
51-200
6
201-500
1

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 121 companies.

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.
What qualifies
Company records associated with the United Kingdom whose business descriptions match “geothermal cooperatives” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 349 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 cooperatives by metro

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 cooperatives”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many geothermal cooperatives are there based in the United Kingdom?

RevenueBase identified 121 company matches for geothermal cooperatives associated with the United Kingdom 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 city has the most geothermal cooperatives?

London leads with 25 company records, followed by Bristol (3) and Exeter (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 349 professional contacts with verified work emails tracked across these 121 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.

Ready to reach these companies? Verified emails and direct dials for all 121 geothermal cooperatives based in the United Kingdom. Start with a free account, no credit card.

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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.