Company lists · Data refreshed November 2026

Top 25 Geothermal system maintenance contractors based in the United Kingdom

RevenueBase identified 236 company matches for geothermal system maintenance contractors associated with the United Kingdom as of November 2026 and tracks 947 professional contacts across them, including 254 with verified work emails. London is the largest hub.

This list covers company matches for geothermal system maintenance contractors associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
236Companies
947Contacts tracked
254Verified emails
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The 25 largest geothermal system maintenance contractors based in the United Kingdom

Ranked by team size
Top 25 of 236 company matches for geothermal system maintenance contractors based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchNorth Shields, United KingdomHQ recorded Nov 6, 202651-20033 contacts →

Exact match

“Professional service supplying, installing and maintaining energy efficient HVAC systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchBanbury, United KingdomHQ recorded Nov 6, 202651-20031 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 · Nov 6, 2026 · View company records in RevenueBase
3Exact matchSkipton, United KingdomHQ recorded Nov 6, 202651-20030 contacts →

Exact match

“H Clarke & Sons Ltd was first established in 1920 and has grown to become one of the most renowned independent heating and plumbing companies in the region.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchCamberley, United KingdomHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“Trusted provider of cost-saving maintenance and repair of commercial heating, ventilation & air conditioning (HVAC) systems in London, Surrey, Hampshire, Hertfordshire, Berkshire…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“CleanHeat are a London based Commercial Heating and engineering company working throughout central London and the Home Counties.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchHigh Wycombe, United KingdomHQ recorded Nov 6, 202651-20017 contacts →

Exact match

“Heating, Plumbing, Air Conditioning, Electrical & BMS Installation, Servicing and Repair.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchEdinburgh City, United KingdomHQ recorded Nov 6, 202611-5016 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchOxford, United KingdomHQ recorded Nov 6, 20261-1016 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchReading, United KingdomHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“At Premier Heating Solutions, we provide homeowners across Berkshire, South Oxfordshire, and North Hampshire with reliable, energy-efficient plumbing, heating and electrical…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchFalkirk, United KingdomHQ recorded Nov 6, 202611-5013 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 · Nov 6, 2026 · View company records in RevenueBase
11Exact matchOldbury, United KingdomHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Formed in 1982, Lord Combustion Services specialise in the design, installation, repair and maintenance of sustainable heating and hot water systems, supporting over businesses…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchWinnersh, United KingdomHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Your HVAC, Gas and Mechanical all under one roof.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchBirmingham, United KingdomHQ recorded Nov 6, 202611-5012 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSeaham, United KingdomHQ recorded Nov 6, 202611-5012 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchFareham, United KingdomHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“We are a family run renewable energy installation, service and repair company based in Fareham, Hampshire.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchBamber Bridge, United KingdomHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Lancashire Gas Services is dedicated to bringing you and your business the highest standards of workmanship in all aspects of the industry, from customer care through to the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchLiverpool, United KingdomHQ recorded Nov 6, 202611-5010 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchNorwich, United KingdomHQ recorded Nov 6, 20261-1010 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Franklyn Air are specialists in the maintenance and installation of air conditioning across London homes and businesses as well as specialising in the installation and maintenance…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchNorthampton, United KingdomHQ recorded Nov 6, 202651-2009 contacts →

Exact match

“Dravo is a construction company based out of Rhosili Road, Brackmills Industrial Estate, Northampton, United Kingdom.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLeeds, United KingdomHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Servicing Our Future heatpumptech.co.uk At Heat Pump Tech we are passionate about getting your heat pump working at its optimum efficiency.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Tredion provides services inclusive of PPMs, reactives and new installations for Gas boiler and its secondary plant including pumps, pressurisation units and control panels.”

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

Exact match

“PDP Services – Trusted Experts in Solar Energy, Heat Pumps, Electrical, Air Conditioning, Gas & Plumbing Solutions Across Sussex Established in PDP Services has built a strong…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchYeovil, United KingdomHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Elliott Environmental Services Limited is a highly respected independent air conditioning, ventilation and heating company headquartered in Yeovil, Somerset, UK.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchCheltenham, United KingdomHQ recorded Nov 6, 20261-107 contacts →

Exact match

Recorded description not available.

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

Showing 25 of 236 geothermal system maintenance contractors based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 254 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Geothermal system maintenance contractors based in the United Kingdom at a glance

As of Nov 6, 2026
26.8%Verified-email coverage
4.0Average contacts per company
1-10Median size (employees)
10.6%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
145
11-50
69
51-200
13
201-500
1

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 236 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 system maintenance contractors” 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 254 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Geothermal system maintenance contractors by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “geothermal system maintenance contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many geothermal system maintenance contractors are there based in the United Kingdom?

RevenueBase identified 236 company matches for geothermal system maintenance contractors associated with the United Kingdom as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Quora Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most geothermal system maintenance contractors?

London leads with 25 company records, followed by Manchester (3) and Portsmouth (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 254 professional contacts with verified work emails tracked across these 236 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 236 geothermal system maintenance contractors based in the United Kingdom. Start with a free account, no credit card.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.