Company lists · Data refreshed September 2026
Top 25 Geothermal heating companies based in the United Kingdom
RevenueBase identified 231 company matches for geothermal heating companies associated with the United Kingdom as of September 2026 and tracks 2,140 professional contacts across them, including 643 with verified work emails. London is the largest hub.
This list covers company matches for geothermal heating 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 September 20, 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 heating companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 850 contacts → | ||||
Exact match “We're leading the energy transition to zero carbon, by offering complete residential and commercial heating and hot water solutions.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 2 | 83 contacts → | ||||
Exact match “Star Energy Group plc is a British energy business.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 3 | 70 contacts → | ||||
Exact match “As the UK's largest supplier of warm water underfloor heating and integrated renewables, Nu‑Heat delivers fully designed, energy efficient systems to installers, housebuilders…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 4 | 60 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 5 | 43 contacts → | ||||
Exact match “GDC is the holding company for some of the best known brands in the heating industry, including Dimplex, Creda NOBO, Faber, Robinson Willey, Valor, Wonderfire, Glen, Unidare…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 6 | 28 contacts → | ||||
Exact match “STIEBEL ELTRON UK is a leading manufacturer of premium heat pumps and renewable heating solutions, electric hot water and room heating and ventilation, supplying high-quality…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 7 | 28 contacts → | ||||
Exact match “CeraPhi Energy is a leading project development company delivering global geothermal energy solutions at scale.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 8 | 26 contacts → | ||||
Exact match “M&N Heating & Plumbing is an independent company based in Bloxham on the edge of Banbury, serving Oxfordshire, Northamptonshire, Buckinghamshire and Warwickshire.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 9 | 22 contacts → | ||||
Exact match “Rayotec are specialists in renewable energy solutions.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 10 | 17 contacts → | ||||
Exact match “Our aim is to provide renewable energy systems for properties that would clearly benefit from them.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 11 | 14 contacts → | ||||
Exact match “Better Planet was founded in 2004 with a vision to make it easier and more affordable to use green alternatives for heating and electricity.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 12 | 14 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 13 | 14 contacts → | ||||
Exact match “Paynes has been established since 1982, as plumbing and heating specialists.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 14 | 14 contacts → | ||||
Exact match “Nicholls Boreholes & Ground Source is an established, industry leading, family-run, specialist drilling company.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 15 | 14 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 16 | 14 contacts → | ||||
Exact match “We specialise in Geothermal Ground Source Boreholes and Water Boreholes up to 300m.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 17 | 13 contacts → | ||||
Exact match “Having previously worked for a large national mechanical electrical contractor in the renewable energy department, we saw a gap in the renewable energy market for quality ground…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 18 | 13 contacts → | ||||
Exact match “At Cinergi, we bring over 50 years of combined expertise in both domestic and commercial energy sectors, upheld by a team of highly-accredited engineers.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 19 | 12 contacts → | ||||
Exact match “Wise Green Energy are a renewable energy installer based in Norwich, our team have over 26 years industry knowledge in all areas of the renewable energy sector.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 20 | 11 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 21 | 11 contacts → | ||||
Exact match “Anderson Floor Warming And Renewables are total system providers, specialising in the design, supply and installation of: •Fully integrated renewable systems (geothermal, solar…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 22 | 10 contacts → | ||||
Exact match “Spire Renewables specialises in consulting, specifying, installing and commissioning high quality sustainable heating and energy systems.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 23 | 10 contacts → | ||||
Exact match “Award-winning renewable energy company providing cost-effective quality solutions, based on a wealth of experience in heating, solar thermal, solar PV and heat pump technology.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 24 | 9 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 25 | 9 contacts → | ||||
Exact match “The team at Genius Energy Lab have been designing Ground Source Heat Pump systems for over 20 years and consider ourselves the best at what we do.” Recorded in the RevenueBase company graph · Sep 20, 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 heating 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 231 geothermal heating companies based in the United Kingdom
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Geothermal heating companies based in the United Kingdom at a glance
As of Sep 20, 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 231 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 heating 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 643 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 September 20, 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 heating companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many geothermal heating companies are there based in the United Kingdom?
RevenueBase identified 231 company matches for geothermal heating companies associated with the United Kingdom as of September 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?
BAXI tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most geothermal heating companies?
London leads with 17 company records, followed by Glasgow (4) and Lincoln (4).
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 643 professional contacts with verified work emails tracked across these 231 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 September 20, 2026.
Ready to reach these companies? Verified emails and direct dials for all 231 geothermal heating companies based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Geothermal heating companies by geography
- Geothermal heating companies based in Australia
- Geothermal heating companies based in Austria
- Geothermal heating companies based in Belgium
- Geothermal heating companies based in Brazil
- Geothermal heating companies based in Canada
- Geothermal heating companies based in Czechia
- Geothermal heating companies based in Denmark
- Geothermal heating companies based in Finland
- Geothermal heating companies based in France
- Geothermal heating companies based in Germany
- Geothermal heating companies based in India
- Geothermal heating companies based in Ireland
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 heating companies based in Australia
- Geothermal heating companies based in Austria
- Geothermal heating companies based in Belgium
- Geothermal heating companies based in Brazil
- Geothermal heating companies based in Canada
- Geothermal heating companies based in Czechia
Company intelligence · public preview
Top 25 geothermal heating 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 231 matching company records for geothermal heating companies based in the United Kingdom, with 2,140 tracked contacts and 643 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: September 20, 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 heating 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 |  BAXIbaxi.co.ukHQ: Warwick, United KingdomReported employees: 1,001-5,000 | Warwick, United Kingdom | 1,001-5,000 | Exact match | 850 contacts → |
“We're leading the energy transition to zero carbon, by offering complete residential and commercial heating and hot water solutions.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Star Energy Group PLCstarenergygroupplc.com HQ: Sudbrooke, United KingdomReported employees: 51-200 | Sudbrooke, United Kingdom | 51-200 | Exact match | 83 contacts → |
“Star Energy Group plc is a British energy business.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Nu-Heat Underfloor Heating & Renewablesnu-heat.co.ukHQ: Honiton, United KingdomReported employees: 51-200 | Honiton, United Kingdom | 51-200 | Exact match | 70 contacts → |
“As the UK's largest supplier of warm water underfloor heating and integrated renewables, Nu‑Heat delivers fully designed, energy efficient systems to installers, housebuilders…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Rendescorendesco.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 60 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 · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | GDC Group LTDgdcgroup.co.uk HQ: Southampton, United KingdomReported employees: 51-200 | Southampton, United Kingdom | 51-200 | Exact match | 43 contacts → |
“GDC is the holding company for some of the best known brands in the heating industry, including Dimplex, Creda NOBO, Faber, Robinson Willey, Valor, Wonderfire, Glen, Unidare…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Stiebel Eltron UK LTDstiebel-eltron.co.uk HQ: Bromborough, United KingdomReported employees: 11-50 | Bromborough, United Kingdom | 11-50 | Exact match | 28 contacts → |
“STIEBEL ELTRON UK is a leading manufacturer of premium heat pumps and renewable heating solutions, electric hot water and room heating and ventilation, supplying high-quality…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Geothermal Development Companyceraphi.com HQ: Great Yarmouth, United KingdomReported employees: 11-50 | Great Yarmouth, United Kingdom | 11-50 | Exact match | 28 contacts → |
“CeraPhi Energy is a leading project development company delivering global geothermal energy solutions at scale.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | M&n Heating & Plumbingmnheating.co.uk HQ: Banbury, United KingdomReported employees: 51-200 | Banbury, United Kingdom | 51-200 | Exact match | 26 contacts → |
“M&N Heating & Plumbing is an independent company based in Bloxham on the edge of Banbury, serving Oxfordshire, Northamptonshire, Buckinghamshire and Warwickshire.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Rayotec LTDrayotec.com HQ: Sunbury On Thames, United KingdomReported employees: 11-50 | Sunbury On Thames, United Kingdom | 11-50 | Exact match | 22 contacts → |
“Rayotec are specialists in renewable energy solutions.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | HEX Energy LTDhexenergy.co.uk HQ: Nuneaton, United KingdomReported employees: 11-50 | Nuneaton, United Kingdom | 11-50 | Exact match | 17 contacts → |
“Our aim is to provide renewable energy systems for properties that would clearly benefit from them.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Better Planetbetterplanet.co.uk HQ: Potters Bar, United KingdomReported employees: 11-50 | Potters Bar, United Kingdom | 11-50 | Exact match | 14 contacts → |
“Better Planet was founded in 2004 with a vision to make it easier and more affordable to use green alternatives for heating and electricity.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Geothermal Engineering LTDgel.energy HQ: Redruth, United KingdomReported employees: 1-10 | Redruth, United Kingdom | 1-10 | Exact match | 14 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 · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Payne's Heating & Plumbing Services LTDpaynes-heating.co.uk HQ: Uckfield, United KingdomReported employees: 51-200 | Uckfield, United Kingdom | 51-200 | Exact match | 14 contacts → |
“Paynes has been established since 1982, as plumbing and heating specialists.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Nicholls Boreholes & Ground Sourcenichollsboreholes.co.uk HQ: Kirdford, United KingdomReported employees: 51-200 | Kirdford, United Kingdom | 51-200 | Exact match | 14 contacts → |
“Nicholls Boreholes & Ground Source is an established, industry leading, family-run, specialist drilling company.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Townrock Energytownrock.com HQ: Edinburgh City, United KingdomReported employees: 11-50 | Edinburgh City, United Kingdom | 11-50 | Exact match | 14 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 · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Synergy Boreholes LTDsynergyboreholes.co.uk HQ: Aylesbury, United KingdomReported employees: 11-50 | Aylesbury, United Kingdom | 11-50 | Exact match | 14 contacts → |
“We specialise in Geothermal Ground Source Boreholes and Water Boreholes up to 300m.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Renewable Heat Installations And Servicingrenewableheat.com HQ: Falkirk, United KingdomReported employees: 11-50 | Falkirk, United Kingdom | 11-50 | Exact match | 13 contacts → |
“Having previously worked for a large national mechanical electrical contractor in the renewable energy department, we saw a gap in the renewable energy market for quality ground…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Cinergicinergi.co.uk HQ: Southampton, United KingdomReported employees: 11-50 | Southampton, United Kingdom | 11-50 | Exact match | 13 contacts → |
“At Cinergi, we bring over 50 years of combined expertise in both domestic and commercial energy sectors, upheld by a team of highly-accredited engineers.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Wise Green Energy LTDwisegreenenergy.co.uk HQ: Norwich, United KingdomReported employees: 11-50 | Norwich, United Kingdom | 11-50 | Exact match | 12 contacts → |
“Wise Green Energy are a renewable energy installer based in Norwich, our team have over 26 years industry knowledge in all areas of the renewable energy sector.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Niche Energy Solutionsnicheenergy.co.uk HQ: Sandycroft, United KingdomReported employees: 51-200 | Sandycroft, United Kingdom | 51-200 | Exact match | 11 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 |  Anderson Floor Warming And Renewablesandersonfloorwarming.co.ukHQ: Paisley, United KingdomReported employees: 11-50 | Paisley, United Kingdom | 11-50 | Exact match | 11 contacts → |
“Anderson Floor Warming And Renewables are total system providers, specialising in the design, supply and installation of: •Fully integrated renewable systems (geothermal, solar…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Spire Renewablesspirerenewables.co.ukHQ: Caerphilly, United KingdomReported employees: 11-50 | Caerphilly, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Spire Renewables specialises in consulting, specifying, installing and commissioning high quality sustainable heating and energy systems.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | OHM Energy LTDohmenergy.co.uk HQ: Hailsham, United KingdomReported employees: 11-50 | Hailsham, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Award-winning renewable energy company providing cost-effective quality solutions, based on a wealth of experience in heating, solar thermal, solar PV and heat pump technology.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | The Energy LAB UKenergylabuk.com HQ: Barnstaple, United KingdomReported employees: 1-10 | Barnstaple, United Kingdom | 1-10 | Exact match | 9 contacts → |
“Energy Lab has been supporting specifiers, developers and installers of geothermal and air source heat pumps since 2012.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Genius Energy LAB Ground Source Heat Pump System And Heat Network Designersgeniusenergylab.com HQ: Market Bosworth, United KingdomReported employees: 11-50 | Market Bosworth, United Kingdom | 11-50 | Exact match | 9 contacts → |
“The team at Genius Energy Lab have been designing Ground Source Heat Pump systems for over 20 years and consider ourselves the best at what we do.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 231 company matches
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Geothermal heating companies: dataset insights
September 20, 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
223 records in the displayed employee bands.
8 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 231 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: September 20, 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 heating 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 heating companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 231 matching company records, 2,140 tracked contacts and 643 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: September 20, 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 heating companies by geography
- Geothermal heating companies based in Australia
- Geothermal heating companies based in Austria
- Geothermal heating companies based in Belgium
- Geothermal heating companies based in Brazil
- Geothermal heating companies based in Canada
- Geothermal heating companies based in Czechia
- Geothermal heating companies based in Denmark
- Geothermal heating companies based in Finland
- Geothermal heating companies based in France
- Geothermal heating companies based in Germany
- Geothermal heating companies based in India
- Geothermal heating companies based in Ireland
Cite this list
RevenueBase Data Team. Top 25 geothermal heating companies based in the United Kingdom. Snapshot: September 20, 2026. https://revenuebase.ai/companies/geothermal-heating-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 heating companies based in Australia
- Geothermal heating companies based in Austria
- Geothermal heating companies based in Belgium
- Geothermal heating companies based in Brazil
- Geothermal heating companies based in Canada
- Geothermal heating companies based in Czechia
Company intelligence · public preview
Top 25 geothermal heating companies based in the United Kingdom
RevenueBase records 231 matching company records for geothermal heating companies based in the United Kingdom, with 2,140 tracked contacts and 643 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: September 20, 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 heating 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 | BAXIbaxi.co.uk HQ: Warwick, United KingdomReported employees: 1,001-5,000 | Warwick, United Kingdom | 1,001-5,000 | Exact match | 850 contacts → |
“We're leading the energy transition to zero carbon, by offering complete residential and commercial heating and hot water solutions.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Star Energy Group PLCstarenergygroupplc.com HQ: Sudbrooke, United KingdomReported employees: 51-200 | Sudbrooke, United Kingdom | 51-200 | Exact match | 83 contacts → |
“Star Energy Group plc is a British energy business.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Nu-Heat Underfloor Heating & Renewablesnu-heat.co.uk HQ: Honiton, United KingdomReported employees: 51-200 | Honiton, United Kingdom | 51-200 | Exact match | 70 contacts → |
“As the UK's largest supplier of warm water underfloor heating and integrated renewables, Nu‑Heat delivers fully designed, energy efficient systems to installers, housebuilders…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Rendescorendesco.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 60 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 · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | GDC Group LTDgdcgroup.co.uk HQ: Southampton, United KingdomReported employees: 51-200 | Southampton, United Kingdom | 51-200 | Exact match | 43 contacts → |
“GDC is the holding company for some of the best known brands in the heating industry, including Dimplex, Creda NOBO, Faber, Robinson Willey, Valor, Wonderfire, Glen, Unidare…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Stiebel Eltron UK LTDstiebel-eltron.co.uk HQ: Bromborough, United KingdomReported employees: 11-50 | Bromborough, United Kingdom | 11-50 | Exact match | 28 contacts → |
“STIEBEL ELTRON UK is a leading manufacturer of premium heat pumps and renewable heating solutions, electric hot water and room heating and ventilation, supplying high-quality…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Geothermal Development Companyceraphi.com HQ: Great Yarmouth, United KingdomReported employees: 11-50 | Great Yarmouth, United Kingdom | 11-50 | Exact match | 28 contacts → |
“CeraPhi Energy is a leading project development company delivering global geothermal energy solutions at scale.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | M&n Heating & Plumbingmnheating.co.uk HQ: Banbury, United KingdomReported employees: 51-200 | Banbury, United Kingdom | 51-200 | Exact match | 26 contacts → |
“M&N Heating & Plumbing is an independent company based in Bloxham on the edge of Banbury, serving Oxfordshire, Northamptonshire, Buckinghamshire and Warwickshire.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Rayotec LTDrayotec.com HQ: Sunbury On Thames, United KingdomReported employees: 11-50 | Sunbury On Thames, United Kingdom | 11-50 | Exact match | 22 contacts → |
“Rayotec are specialists in renewable energy solutions.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | HEX Energy LTDhexenergy.co.uk HQ: Nuneaton, United KingdomReported employees: 11-50 | Nuneaton, United Kingdom | 11-50 | Exact match | 17 contacts → |
“Our aim is to provide renewable energy systems for properties that would clearly benefit from them.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Better Planetbetterplanet.co.uk HQ: Potters Bar, United KingdomReported employees: 11-50 | Potters Bar, United Kingdom | 11-50 | Exact match | 14 contacts → |
“Better Planet was founded in 2004 with a vision to make it easier and more affordable to use green alternatives for heating and electricity.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Geothermal Engineering LTDgel.energy HQ: Redruth, United KingdomReported employees: 1-10 | Redruth, United Kingdom | 1-10 | Exact match | 14 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 · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Payne's Heating & Plumbing Services LTDpaynes-heating.co.uk HQ: Uckfield, United KingdomReported employees: 51-200 | Uckfield, United Kingdom | 51-200 | Exact match | 14 contacts → |
“Paynes has been established since 1982, as plumbing and heating specialists.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Nicholls Boreholes & Ground Sourcenichollsboreholes.co.uk HQ: Kirdford, United KingdomReported employees: 51-200 | Kirdford, United Kingdom | 51-200 | Exact match | 14 contacts → |
“Nicholls Boreholes & Ground Source is an established, industry leading, family-run, specialist drilling company.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Townrock Energytownrock.com HQ: Edinburgh City, United KingdomReported employees: 11-50 | Edinburgh City, United Kingdom | 11-50 | Exact match | 14 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 · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Synergy Boreholes LTDsynergyboreholes.co.uk HQ: Aylesbury, United KingdomReported employees: 11-50 | Aylesbury, United Kingdom | 11-50 | Exact match | 14 contacts → |
“We specialise in Geothermal Ground Source Boreholes and Water Boreholes up to 300m.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Renewable Heat Installations And Servicingrenewableheat.com HQ: Falkirk, United KingdomReported employees: 11-50 | Falkirk, United Kingdom | 11-50 | Exact match | 13 contacts → |
“Having previously worked for a large national mechanical electrical contractor in the renewable energy department, we saw a gap in the renewable energy market for quality ground…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Cinergicinergi.co.uk HQ: Southampton, United KingdomReported employees: 11-50 | Southampton, United Kingdom | 11-50 | Exact match | 13 contacts → |
“At Cinergi, we bring over 50 years of combined expertise in both domestic and commercial energy sectors, upheld by a team of highly-accredited engineers.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Wise Green Energy LTDwisegreenenergy.co.uk HQ: Norwich, United KingdomReported employees: 11-50 | Norwich, United Kingdom | 11-50 | Exact match | 12 contacts → |
“Wise Green Energy are a renewable energy installer based in Norwich, our team have over 26 years industry knowledge in all areas of the renewable energy sector.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Niche Energy Solutionsnicheenergy.co.uk HQ: Sandycroft, United KingdomReported employees: 51-200 | Sandycroft, United Kingdom | 51-200 | Exact match | 11 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 | Anderson Floor Warming And Renewablesandersonfloorwarming.co.uk HQ: Paisley, United KingdomReported employees: 11-50 | Paisley, United Kingdom | 11-50 | Exact match | 11 contacts → |
“Anderson Floor Warming And Renewables are total system providers, specialising in the design, supply and installation of: •Fully integrated renewable systems (geothermal, solar…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Spire Renewablesspirerenewables.co.uk HQ: Caerphilly, United KingdomReported employees: 11-50 | Caerphilly, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Spire Renewables specialises in consulting, specifying, installing and commissioning high quality sustainable heating and energy systems.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | OHM Energy LTDohmenergy.co.uk HQ: Hailsham, United KingdomReported employees: 11-50 | Hailsham, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Award-winning renewable energy company providing cost-effective quality solutions, based on a wealth of experience in heating, solar thermal, solar PV and heat pump technology.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | The Energy LAB UKenergylabuk.com HQ: Barnstaple, United KingdomReported employees: 1-10 | Barnstaple, United Kingdom | 1-10 | Exact match | 9 contacts → |
“Energy Lab has been supporting specifiers, developers and installers of geothermal and air source heat pumps since 2012.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Genius Energy LAB Ground Source Heat Pump System And Heat Network Designersgeniusenergylab.com HQ: Market Bosworth, United KingdomReported employees: 11-50 | Market Bosworth, United Kingdom | 11-50 | Exact match | 9 contacts → |
“The team at Genius Energy Lab have been designing Ground Source Heat Pump systems for over 20 years and consider ourselves the best at what we do.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 231 company matches
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Geothermal heating companies: dataset insights
September 20, 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
223 records in the displayed employee bands.
8 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 231 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: September 20, 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 heating 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 heating companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 231 matching company records, 2,140 tracked contacts and 643 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: September 20, 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 heating companies by geography
- Geothermal heating companies based in Australia
- Geothermal heating companies based in Austria
- Geothermal heating companies based in Belgium
- Geothermal heating companies based in Brazil
- Geothermal heating companies based in Canada
- Geothermal heating companies based in Czechia
- Geothermal heating companies based in Denmark
- Geothermal heating companies based in Finland
- Geothermal heating companies based in France
- Geothermal heating companies based in Germany
- Geothermal heating companies based in India
- Geothermal heating companies based in Ireland
Cite this list
RevenueBase Data Team. Top 25 geothermal heating companies based in the United Kingdom. Snapshot: September 20, 2026. https://revenuebase.ai/companies/geothermal-heating-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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