Company lists · Data refreshed October 2026
Top 25 Geothermal engineering companies based in the United Kingdom
RevenueBase identified 96 company matches for geothermal engineering companies associated with the United Kingdom as of October 2026 and tracks 703 professional contacts across them, including 268 with verified work emails. London is the largest hub.
This list covers company matches for geothermal engineering companies 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.
The 25 largest geothermal engineering companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 80 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 | |||||
| 2 | 76 contacts → | ||||
Exact match “Zetica is the UK’s leader in engineering and environmental geophysics, with an enviable reputation for objective advice, novel problem solving, consistently high-quality surveys…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 3 | 66 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 | |||||
| 4 | 42 contacts → | ||||
Exact match “OSL is a multi-disciplined team of creative, forward thinking technical specialists, working collaboratively with the energy and related sectors to provide quality implemented…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 5 | 29 contacts → | ||||
Exact match “CeraPhi Energy is a leading project development company delivering global geothermal energy solutions at scale.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 6 | 21 contacts → | ||||
Exact match “Nicholls Boreholes & Ground Source is an established, industry leading, family-run, specialist drilling company.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 7 | 21 contacts → | ||||
Exact match “Drilcorp was established in 1992 and since then has developed into one of the UK’s top drilling companies.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 8 | 18 contacts → | ||||
Exact match “SwitchOn Power is a specialized engineering company, focusing on renewable energy generation projects.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 9 | 16 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 | |||||
| 10 | 16 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 | |||||
| 11 | 15 contacts → | ||||
Exact match “GeoScience Limited is an independent earth science consultancy, providing engineering, geomechanics and reservoir geology solutions to the oil, gas and geothermal industries.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 12 | 12 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 13 | 10 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 | |||||
| 14 | 10 contacts → | ||||
Exact match “Groundsource Drilling & Contracting Limited is a specialised drilling contractor providing a quality, professional, and reliable drilling service to the public, private and…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 15 | 9 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 | |||||
| 16 | 7 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 | |||||
| 17 | 7 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 | |||||
| 18 | 6 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 · Oct 13, 2026 · View company records in RevenueBase | |||||
| 19 | 6 contacts → | ||||
Exact match “Ground Investigation, Geotechnical Design Advice, Geothermal Energy, Water Abstraction, Expert Opinion, Knowledge and Training – TFGI provide the essential Ground Engineering…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 20 | 5 contacts → | ||||
Exact match “MuoviTech are the European leaders, supplying products for geothermal energy collection systems throughout the UK and Europe with own factories in Sweden, Finland, Poland…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 21 | 5 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 | |||||
| 22 | 5 contacts → | ||||
Exact match “First established in 1870, Whatley & Co are a leading provider of and one of the oldest names in water engineering services within southern England.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 23 | 5 contacts → | ||||
Exact match “Anergy are a specialised engineering company providing reliable energy solutions to an evolving energy market.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
| 24 | 4 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 | |||||
| 25 | 4 contacts → | ||||
Exact match “Orangehouse Renewables is an accredited and award winning renewable energy company.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “geothermal engineering companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 96 geothermal engineering companies based in the United Kingdom
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Geothermal engineering companies based in the United Kingdom at a glance
As of Oct 13, 2026Companies by employee count
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 96 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 engineering companies” 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 268 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 engineering companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many geothermal engineering companies are there based in the United Kingdom?
RevenueBase identified 96 company matches for geothermal engineering companies 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?
Star Energy Group PLC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most geothermal engineering companies?
London leads with 18 company records, followed by Aberdeen (4) and Great Yarmouth (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 268 professional contacts with verified work emails tracked across these 96 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.
Ready to reach these companies? Verified emails and direct dials for all 96 geothermal engineering companies based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Geothermal engineering companies by geography
- Geothermal engineering companies based in Calgary, Canada
- Geothermal engineering companies based in Houston, United States
- Geothermal engineering companies based in Australia
- Geothermal engineering companies based in Belgium
- Geothermal engineering companies based in Brazil
- Geothermal engineering companies based in Canada
- Geothermal engineering companies based in Chile
- Geothermal engineering companies based in Finland
- Geothermal engineering companies based in France
- Geothermal engineering companies based in Germany
- Geothermal engineering companies based in Indonesia
- Geothermal engineering companies based in Italy
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Geothermal engineering companies based in Calgary, Canada
- Geothermal engineering companies based in Houston, United States
- Geothermal engineering companies based in Australia
- Geothermal engineering companies based in Belgium
- Geothermal engineering companies based in Brazil
- Geothermal engineering companies based in Canada
Company intelligence · public preview
Top 25 geothermal engineering companies based in the United Kingdom
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 96 matching company records for geothermal engineering companies based in the United Kingdom, with 703 tracked contacts and 268 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 13, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 geothermal engineering companies based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Star Energy Group PLCstarenergygroupplc.com HQ: Sudbrooke, United KingdomReported employees: 51-200 | Sudbrooke, United Kingdom | 51-200 | Exact match | 80 contacts → |
“Star Energy Group plc is a British energy business.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Zetica Limitedzetica.comHQ: Eynsham, United KingdomReported employees: 51-200 | Eynsham, United Kingdom | 51-200 | Exact match | 76 contacts → |
“Zetica is the UK’s leader in engineering and environmental geophysics, with an enviable reputation for objective advice, novel problem solving, consistently high-quality surveys…” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Rendescorendesco.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 66 contacts → |
“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 description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  OSL Consulting Engineersoslconsulting.comHQ: Hull, United KingdomReported employees: 51-200 | Hull, United Kingdom | 51-200 | Exact match | 42 contacts → |
“OSL is a multi-disciplined team of creative, forward thinking technical specialists, working collaboratively with the energy and related sectors to provide quality implemented…” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Geothermal Development Companyceraphi.com HQ: Great Yarmouth, United KingdomReported employees: 11-50 | Great Yarmouth, United Kingdom | 11-50 | Exact match | 29 contacts → |
“CeraPhi Energy is a leading project development company delivering global geothermal energy solutions at scale.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Nicholls Boreholes & Ground Sourcenichollsboreholes.co.uk HQ: Kirdford, United KingdomReported employees: 51-200 | Kirdford, United Kingdom | 51-200 | Exact match | 21 contacts → |
“Nicholls Boreholes & Ground Source is an established, industry leading, family-run, specialist drilling company.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Drilcorpdrilcorp.comHQ: Seaham, United KingdomReported employees: 11-50 | Seaham, United Kingdom | 11-50 | Exact match | 21 contacts → |
“Drilcorp was established in 1992 and since then has developed into one of the UK’s top drilling companies.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Switchon Powerswitchonpower.co.ukHQ: Stourbridge, United KingdomReported employees: 11-50 | Stourbridge, United Kingdom | 11-50 | Exact match | 18 contacts → |
“SwitchOn Power is a specialized engineering company, focusing on renewable energy generation projects.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Geothermal Engineering LTDgel.energy HQ: Redruth, United KingdomReported employees: 1-10 | Redruth, United Kingdom | 1-10 | Exact match | 16 contacts → |
“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 description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Townrock Energytownrock.com HQ: Edinburgh City, United KingdomReported employees: 11-50 | Edinburgh City, United Kingdom | 11-50 | Exact match | 16 contacts → |
“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 description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Geoscience Limitedgeoscience.co.ukHQ: Falmouth, United KingdomReported employees: 11-50 | Falmouth, United Kingdom | 11-50 | Exact match | 15 contacts → |
“GeoScience Limited is an independent earth science consultancy, providing engineering, geomechanics and reservoir geology solutions to the oil, gas and geothermal industries.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | AD Morganfindingwater.co.uk HQ: Kinsham, United KingdomReported employees: 11-50 | Kinsham, United Kingdom | 11-50 | Exact match | 12 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 | Erda Energyerdaenergy.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 10 contacts → |
“Smart, sustainable heating and cooling, powered by the earth.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Groundsource Drilling & Contracting LTDgdclimited.com HQ: Kirkby-in-ashfield, United KingdomReported employees: 11-50 | Kirkby-in-ashfield, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Groundsource Drilling & Contracting Limited is a specialised drilling contractor providing a quality, professional, and reliable drilling service to the public, private and…” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Synergy Boreholes LTDsynergyboreholes.co.uk HQ: Aylesbury, United KingdomReported employees: 11-50 | Aylesbury, United Kingdom | 11-50 | Exact match | 9 contacts → |
“We specialise in Geothermal Ground Source Boreholes and Water Boreholes up to 300m.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Eden Geothermal Limitededengeothermal.com HQ: Cornwall, United KingdomReported employees: 11-50 | Cornwall, United Kingdom | 11-50 | Exact match | 7 contacts → |
“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 description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Causeway Energiescausewaygt.com HQ: Belfast, United KingdomReported employees: 1-10 | Belfast, United Kingdom | 1-10 | Exact match | 7 contacts → |
“There is a renewable energy source that is available all day, every day, whatever the weather.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Geothermal Energy Forumgeothermal-advancement.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 6 contacts → |
“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 description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Terra Firma Ground Investigation LTDtfgi.co.uk HQ: Ley Hill, United KingdomReported employees: 11-50 | Ley Hill, United Kingdom | 11-50 | Exact match | 6 contacts → |
“Ground Investigation, Geotechnical Design Advice, Geothermal Energy, Water Abstraction, Expert Opinion, Knowledge and Training – TFGI provide the essential Ground Engineering…” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Muovitech UK Limitedmuovitech.co.uk HQ: Wilpshire, United KingdomReported employees: 1-10 | Wilpshire, United Kingdom | 1-10 | Exact match | 5 contacts → |
“MuoviTech are the European leaders, supplying products for geothermal energy collection systems throughout the UK and Europe with own factories in Sweden, Finland, Poland…” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Onsen Energyonsenenergy.com HQ: Bordon, United KingdomReported employees: 11-50 | Bordon, United Kingdom | 11-50 | Exact match | 5 contacts → |
“At Onsen Energy, we provide homeowners, developers, sports clubs, schools and the wider energy market with ground source heating systems and drilling services.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Whatley & CO Pewsey LTDwhatley-pewsey.co.uk HQ: Pewsey, United KingdomReported employees: 11-50 | Pewsey, United Kingdom | 11-50 | Exact match | 5 contacts → |
“First established in 1870, Whatley & Co are a leading provider of and one of the oldest names in water engineering services within southern England.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Anergy LTDgreenanergy.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 5 contacts → |
“Anergy are a specialised engineering company providing reliable energy solutions to an evolving energy market.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Dcarbonxdcarbonx.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 4 contacts → |
“dCarbonX is a pioneering asset-focused GeoEnergy company established to develop subsurface assets for energy storage and for the sequestration of CO2.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Orangehouse Renewables LTDohrenewables.co.uk HQ: Peterborough, United KingdomReported employees: 11-50 | Peterborough, United Kingdom | 11-50 | Exact match | 4 contacts → |
“Orangehouse Renewables is an accredited and award winning renewable energy company.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 96 company matches
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Geothermal engineering companies: dataset insights
October 13, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
94 records in the displayed employee bands.
2 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 96 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 13, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for geothermal engineering companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many geothermal engineering companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 96 matching company records, 703 tracked contacts and 268 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 13, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Geothermal engineering companies by geography
- Geothermal engineering companies based in Calgary, Canada
- Geothermal engineering companies based in Houston, United States
- Geothermal engineering companies based in Australia
- Geothermal engineering companies based in Belgium
- Geothermal engineering companies based in Brazil
- Geothermal engineering companies based in Canada
- Geothermal engineering companies based in Chile
- Geothermal engineering companies based in Finland
- Geothermal engineering companies based in France
- Geothermal engineering companies based in Germany
- Geothermal engineering companies based in Indonesia
- Geothermal engineering companies based in Italy
Cite this list
RevenueBase Data Team. Top 25 geothermal engineering companies based in the United Kingdom. Snapshot: October 13, 2026. https://revenuebase.ai/companies/geothermal-engineering-companies/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Geothermal engineering companies based in Calgary, Canada
- Geothermal engineering companies based in Houston, United States
- Geothermal engineering companies based in Australia
- Geothermal engineering companies based in Belgium
- Geothermal engineering companies based in Brazil
- Geothermal engineering companies based in Canada
Company intelligence · public preview
Top 25 geothermal engineering companies based in the United Kingdom
RevenueBase records 96 matching company records for geothermal engineering companies based in the United Kingdom, with 703 tracked contacts and 268 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 13, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 geothermal engineering companies based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Star Energy Group PLCstarenergygroupplc.com HQ: Sudbrooke, United KingdomReported employees: 51-200 | Sudbrooke, United Kingdom | 51-200 | Exact match | 80 contacts → |
“Star Energy Group plc is a British energy business.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Zetica Limitedzetica.com HQ: Eynsham, United KingdomReported employees: 51-200 | Eynsham, United Kingdom | 51-200 | Exact match | 76 contacts → |
“Zetica is the UK’s leader in engineering and environmental geophysics, with an enviable reputation for objective advice, novel problem solving, consistently high-quality surveys…” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Rendescorendesco.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 66 contacts → |
“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 description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | OSL Consulting Engineersoslconsulting.com HQ: Hull, United KingdomReported employees: 51-200 | Hull, United Kingdom | 51-200 | Exact match | 42 contacts → |
“OSL is a multi-disciplined team of creative, forward thinking technical specialists, working collaboratively with the energy and related sectors to provide quality implemented…” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Geothermal Development Companyceraphi.com HQ: Great Yarmouth, United KingdomReported employees: 11-50 | Great Yarmouth, United Kingdom | 11-50 | Exact match | 29 contacts → |
“CeraPhi Energy is a leading project development company delivering global geothermal energy solutions at scale.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Nicholls Boreholes & Ground Sourcenichollsboreholes.co.uk HQ: Kirdford, United KingdomReported employees: 51-200 | Kirdford, United Kingdom | 51-200 | Exact match | 21 contacts → |
“Nicholls Boreholes & Ground Source is an established, industry leading, family-run, specialist drilling company.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Drilcorpdrilcorp.com HQ: Seaham, United KingdomReported employees: 11-50 | Seaham, United Kingdom | 11-50 | Exact match | 21 contacts → |
“Drilcorp was established in 1992 and since then has developed into one of the UK’s top drilling companies.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Switchon Powerswitchonpower.co.uk HQ: Stourbridge, United KingdomReported employees: 11-50 | Stourbridge, United Kingdom | 11-50 | Exact match | 18 contacts → |
“SwitchOn Power is a specialized engineering company, focusing on renewable energy generation projects.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Geothermal Engineering LTDgel.energy HQ: Redruth, United KingdomReported employees: 1-10 | Redruth, United Kingdom | 1-10 | Exact match | 16 contacts → |
“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 description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Townrock Energytownrock.com HQ: Edinburgh City, United KingdomReported employees: 11-50 | Edinburgh City, United Kingdom | 11-50 | Exact match | 16 contacts → |
“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 description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Geoscience Limitedgeoscience.co.uk HQ: Falmouth, United KingdomReported employees: 11-50 | Falmouth, United Kingdom | 11-50 | Exact match | 15 contacts → |
“GeoScience Limited is an independent earth science consultancy, providing engineering, geomechanics and reservoir geology solutions to the oil, gas and geothermal industries.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | AD Morganfindingwater.co.uk HQ: Kinsham, United KingdomReported employees: 11-50 | Kinsham, United Kingdom | 11-50 | Exact match | 12 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 | Erda Energyerdaenergy.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 10 contacts → |
“Smart, sustainable heating and cooling, powered by the earth.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Groundsource Drilling & Contracting LTDgdclimited.com HQ: Kirkby-in-ashfield, United KingdomReported employees: 11-50 | Kirkby-in-ashfield, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Groundsource Drilling & Contracting Limited is a specialised drilling contractor providing a quality, professional, and reliable drilling service to the public, private and…” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Synergy Boreholes LTDsynergyboreholes.co.uk HQ: Aylesbury, United KingdomReported employees: 11-50 | Aylesbury, United Kingdom | 11-50 | Exact match | 9 contacts → |
“We specialise in Geothermal Ground Source Boreholes and Water Boreholes up to 300m.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Eden Geothermal Limitededengeothermal.com HQ: Cornwall, United KingdomReported employees: 11-50 | Cornwall, United Kingdom | 11-50 | Exact match | 7 contacts → |
“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 description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Causeway Energiescausewaygt.com HQ: Belfast, United KingdomReported employees: 1-10 | Belfast, United Kingdom | 1-10 | Exact match | 7 contacts → |
“There is a renewable energy source that is available all day, every day, whatever the weather.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Geothermal Energy Forumgeothermal-advancement.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 6 contacts → |
“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 description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Terra Firma Ground Investigation LTDtfgi.co.uk HQ: Ley Hill, United KingdomReported employees: 11-50 | Ley Hill, United Kingdom | 11-50 | Exact match | 6 contacts → |
“Ground Investigation, Geotechnical Design Advice, Geothermal Energy, Water Abstraction, Expert Opinion, Knowledge and Training – TFGI provide the essential Ground Engineering…” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Muovitech UK Limitedmuovitech.co.uk HQ: Wilpshire, United KingdomReported employees: 1-10 | Wilpshire, United Kingdom | 1-10 | Exact match | 5 contacts → |
“MuoviTech are the European leaders, supplying products for geothermal energy collection systems throughout the UK and Europe with own factories in Sweden, Finland, Poland…” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Onsen Energyonsenenergy.com HQ: Bordon, United KingdomReported employees: 11-50 | Bordon, United Kingdom | 11-50 | Exact match | 5 contacts → |
“At Onsen Energy, we provide homeowners, developers, sports clubs, schools and the wider energy market with ground source heating systems and drilling services.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Whatley & CO Pewsey LTDwhatley-pewsey.co.uk HQ: Pewsey, United KingdomReported employees: 11-50 | Pewsey, United Kingdom | 11-50 | Exact match | 5 contacts → |
“First established in 1870, Whatley & Co are a leading provider of and one of the oldest names in water engineering services within southern England.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Anergy LTDgreenanergy.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 5 contacts → |
“Anergy are a specialised engineering company providing reliable energy solutions to an evolving energy market.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Dcarbonxdcarbonx.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 4 contacts → |
“dCarbonX is a pioneering asset-focused GeoEnergy company established to develop subsurface assets for energy storage and for the sequestration of CO2.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Orangehouse Renewables LTDohrenewables.co.uk HQ: Peterborough, United KingdomReported employees: 11-50 | Peterborough, United Kingdom | 11-50 | Exact match | 4 contacts → |
“Orangehouse Renewables is an accredited and award winning renewable energy company.” Recorded description excerpt · October 13, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 96 company matches
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Geothermal engineering companies: dataset insights
October 13, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
94 records in the displayed employee bands.
2 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 96 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 13, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for geothermal engineering companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many geothermal engineering companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 96 matching company records, 703 tracked contacts and 268 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 13, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
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Cite this list
RevenueBase Data Team. Top 25 geothermal engineering companies based in the United Kingdom. Snapshot: October 13, 2026. https://revenuebase.ai/companies/geothermal-engineering-companies/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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