Company lists · Data refreshed October 2026

Top 19 Geothermal mining operators based in the United Kingdom

RevenueBase identified 44 company matches for geothermal mining operators associated with the United Kingdom as of October 2026 and tracks 423 professional contacts across them, including 220 with verified work emails. London is the largest hub.

This list covers company matches for geothermal mining operators 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 October 13, 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 Oct 13, 2026 How this list was built
44Companies
423Contacts tracked
220Verified emails
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The 19 largest geothermal mining operators based in the United Kingdom

Ranked by team size
Top 19 of 44 company matches for geothermal mining operators based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 13, 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 matchPenryn, United KingdomHQ recorded Oct 13, 202611-5091 contacts →

Exact match

“Cornish Lithium is pioneering the clean extraction of lithium to support the UK’s transition to renewable energy and secure a domestic supply for the batteries that power consumer…”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
2Exact matchSudbrooke, United KingdomHQ recorded Oct 13, 202651-20080 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Oct 13, 202651-20066 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 · Oct 13, 2026 · View company records in RevenueBase
4Exact matchStokesley, United KingdomHQ recorded Oct 13, 202611-5022 contacts →

Exact match

“Carlton Power Group is an independent, UK energy development company formed in 1995, with offices in Stokesley, North Yorkshire and Edinburgh.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
5Exact matchRedruth, United KingdomHQ recorded Oct 13, 20261-1016 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 · Oct 13, 2026 · View company records in RevenueBase
6Exact matchEdinburgh City, United KingdomHQ recorded Oct 13, 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 · Oct 13, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Oct 13, 20261-1010 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
8Exact matchAylesbury, United KingdomHQ recorded Oct 13, 202611-509 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
9Exact matchBridgwater, United KingdomHQ recorded Oct 13, 202611-508 contacts →

Exact match

“STOR Power is a private limited company established to develop, construct and operate flexible reserve power facilities in the UK to support the transition to a low carbon future.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
10Exact matchCornwall, United KingdomHQ recorded Oct 13, 202611-507 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 · Oct 13, 2026 · View company records in RevenueBase
11Exact matchWeardale, United KingdomHQ recorded Oct 13, 202611-507 contacts →

Exact match

“Weardale Lithium limited is a natural resources exploration and development company.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
12Exact matchBelfast, United KingdomHQ recorded Oct 13, 20261-107 contacts →

Exact match

“There is a renewable energy source that is available all day, every day, whatever the weather.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
13Exact matchBordon, United KingdomHQ recorded Oct 13, 202611-505 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 · Oct 13, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Oct 13, 20261-104 contacts →

Exact match

“dCarbonX is a pioneering asset-focused GeoEnergy company established to develop subsurface assets for energy storage and for the sequestration of CO2.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
15Exact matchSheffield, United KingdomHQ recorded Oct 13, 202651-2003 contacts →

Exact match

“Consortium Drilling is a leading onshore deep drilling contractor based in the heart of the UK.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
16Exact matchCheshire, United KingdomHQ recorded Oct 13, 202611-502 contacts →

Exact match

“Geo Energy Holding is a UK based global renewable energy holding with the vision of utilizing each droplet of geothermal brine and steam, maximizing power generation efficiencies…”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
17Exact matchCambridge, United KingdomHQ recorded Oct 13, 20261-102 contacts →

Exact match

“Primeval Energy is a geothermal solutions company, newly established by seasoned oil and gas, geothermal, finance and commercial professionals.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
18Exact matchBournemouth, United KingdomHQ recorded Oct 13, 20261-101 contacts →

Exact match

“Welcome to OGPEG, where we uncover the truth behind our energy choices and their profound impact on our planet.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
19Exact matchAberdeen, United KingdomHQ recorded Oct 13, 20261-101 contacts →

Exact match

“In a world that is looking for clean, reliable, and renewable energy solutions, ZeGen Energy has developed a model to effectively identify potential heat and power production by…”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase

Showing 19 of 44 geothermal mining operators based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 220 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Geothermal mining operators based in the United Kingdom at a glance

As of Oct 13, 2026
52.0%Verified-email coverage
9.6Average contacts per company
11-50Median size (employees)
27.3%Largest-city concentration · London
Oct 13, 2026Page data refreshed

Companies by employee count

1-10
20
11-50
19
51-200
5

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 44 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 mining operators” 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 220 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 October 13, 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.

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

How many geothermal mining operators are there based in the United Kingdom?

RevenueBase identified 44 company matches for geothermal mining operators associated with the United Kingdom as of October 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?

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

Which city has the most geothermal mining operators?

London leads with 12 company records, followed by Aberdeen (2) and Lincoln (2).

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 220 professional contacts with verified work emails tracked across these 44 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 October 13, 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.