Company lists · Data refreshed September 2026

Top 14 Geothermal energy materials mining companies based in the United Kingdom

RevenueBase identified 32 geothermal energy materials mining companies headquartered in the United Kingdom as of September 2026 and tracks 310 professional contacts across them, including 163 with verified work emails. London is the largest hub.

This list covers geothermal energy materials mining companies headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 15, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 15, 2026 86% judged on-target in blind review
32Companies
310Contacts tracked
163Verified emails
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The 14 largest geothermal energy materials mining companies based in the United Kingdom

Ranked by team size
Top 14 of 32 geothermal energy materials mining companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 15, 2026. RevenueBase Smart Search rates how each company's information relates to geothermal energy materials mining companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidencePenryn, United KingdomHQ checked Sep 15, 202611-5097 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 15, 2026
2Partial evidenceSudbrooke, United KingdomHQ checked Sep 15, 202651-20083 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 15, 2026
3Strong evidenceRedruth, United KingdomHQ checked Sep 15, 20261-1014 contacts →

Strong evidence

“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.”

Source: RevenueBase Database · checked Sep 15, 2026
4Partial evidenceEdinburgh City, United KingdomHQ checked Sep 15, 202611-5014 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 15, 2026
5Partial evidenceAylesbury, United KingdomHQ checked Sep 15, 202611-5014 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 15, 2026
6Strong evidenceCornwall, United KingdomHQ checked Sep 15, 202611-507 contacts →

Strong evidence

“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.”

Source: RevenueBase Database · checked Sep 15, 2026
7Indirect evidenceLondon, United KingdomHQ checked Sep 15, 20261-107 contacts →

Indirect evidence

“GreenRoc aims to develop and fast-track its exciting portfolio of high-grade critical minerals projects in Greenland – including graphite, titanium and iron ore – into production.”

Source: RevenueBase Database · checked Sep 15, 2026
8Indirect evidenceWeardale, United KingdomHQ checked Sep 15, 202611-506 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 15, 2026
9Strong evidenceWilpshire, United KingdomHQ checked Sep 15, 20261-105 contacts →

Strong evidence

“MuoviTech are the European leaders, supplying products for geothermal energy collection systems throughout the UK and Europe with own factories in Sweden, Finland, Poland…”

Source: RevenueBase Database · checked Sep 15, 2026
10Partial evidenceLondon, United KingdomHQ checked Sep 15, 20261-105 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 15, 2026
11Strong evidenceCambridge, United KingdomHQ checked Sep 15, 20261-104 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 15, 2026
12Partial evidenceAberdeen, United KingdomHQ checked Sep 15, 20261-103 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 15, 2026
13Strong evidenceCheshire, United KingdomHQ checked Sep 15, 202611-502 contacts →

Strong evidence

“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…”

Source: RevenueBase Database · checked Sep 15, 2026
14Indirect evidenceLondon, United KingdomHQ checked Sep 15, 20261-101 contacts →

Indirect evidence

“Paetoro is a London based consultancy focused on the sensible definition, quantification, and integration of Earth resource.”

Source: RevenueBase Database · checked Sep 15, 2026

Showing 14 of 32 geothermal energy materials mining companies based in the United Kingdom

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Geothermal energy materials mining companies based in the United Kingdom at a glance

As of Sep 15, 2026
52.6%Verified-email coverage
9.7Average contacts per company
1-10Median size (employees)
18.8%Largest-city concentration · London
Sep 15, 2026Page data refreshed

Companies by employee count

1-10
18
11-50
12
51-200
2

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 32 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among geothermal energy materials mining companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United Kingdom whose own description of what they do matches “geothermal energy materials mining companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names geothermal energy materials mining companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among geothermal energy materials mining companies, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 163 across the full list. 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 September 15, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names geothermal energy materials mining companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many geothermal energy materials mining companies are there based in the United Kingdom?

RevenueBase identified 32 geothermal energy materials mining companies headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Cornish Lithium PLC, headquartered in Penryn, tops this list with the largest team on record.

Which city has the most geothermal energy materials mining companies?

London leads with 6 headquartered companies, followed by Lincoln (2) and Aberdeen (1).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 163 verified decision-maker contacts tracked across these 32 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 15, 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 Smart Search, 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.