Company lists · Data refreshed November 2026

Top 25 Geothermal maintenance services based in the United Kingdom

RevenueBase identified 175 company matches for geothermal maintenance services associated with the United Kingdom as of November 2026 and tracks 980 professional contacts across them, including 331 with verified work emails. London is the largest hub.

This list covers company matches for geothermal maintenance services 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
175Companies
980Contacts tracked
331Verified emails
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The 25 largest geothermal maintenance services based in the United Kingdom

Ranked by team size
Top 25 of 175 company matches for geothermal maintenance services 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 matchNormanton, United KingdomHQ recorded Nov 6, 202651-20094 contacts →

Exact match

“JBC Industrial Services is the leading name in Industrial Boiler and Burner service, maintenance, and repair.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact 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
3Exact matchPrinces Risborough, United KingdomHQ recorded Nov 6, 202611-5027 contacts →

Exact match

“At Aircon Services, we’ve been helping companies reduce their energy costs whilst ensuring their businesses are kept cool for over 30 years.”

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 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
6Exact 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
7Exact 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
8Exact 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
9Exact matchEynsham, United KingdomHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Established in 1981, McAlpine Grant Ilco Ltd (MGi) specialise in providing installation, maintenance and servicing of cooling and heating units to properties throughout the UK.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact 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
11Exact 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
12Exact matchLeicester, United KingdomHQ recorded Nov 6, 202651-20010 contacts →

Exact match

“William Freer LTD provides you with expert and extensive solutions to your Installation, servicing, repair and maintenance needs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchBasingstoke, 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
14Exact 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
15Exact matchChatham Me5 8ud, United KingdomHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Supply, installation, maintenance and repairs to all HVAC and general mechanical plant.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchLiverpool, United KingdomHQ recorded Nov 6, 20261-108 contacts →

Exact match

“Here at Managed Mechanical Services Ltd.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchYateley, United KingdomHQ recorded Nov 6, 20261-107 contacts →

Exact match

“At Megan Renewable Installations (MRI), we specialise in providing innovative, efficient, and sustainable solutions for building HVAC and hot water systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchStockton-on-tees, United KingdomHQ recorded Nov 6, 20261-107 contacts →

Exact match

“With over 30 years of industry experience, we support clients across the education, commercial, industrial and public sectors with a strong focus on service, maintenance…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchDerbyshire, United KingdomHQ recorded Nov 6, 202611-506 contacts →

Exact match

“We offer a professional and friendly service in all aspects of plumbing, heating and renewable energy in the domestic and commercial sector of the construction trade, from a…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchLeeds, United KingdomHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Since 2010, UK customers have placed their trust in DNM Engineering to provide a professional service for all their Heating, Ventilation, Air-Conditioning and Refrigeration needs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBetchworth, United KingdomHQ recorded Nov 6, 20261-106 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchEastbourne, United KingdomHQ recorded Nov 6, 202611-505 contacts →

Exact match

“At 4 Facilities, we provide comprehensive solutions for all your commercial heating, air conditioning, refrigeration, heat pump, and electrical needs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBedfordshire, United KingdomHQ recorded Nov 6, 202611-505 contacts →

Exact match

“Founded in 1972, Sun Realm Heating Co.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchKettering, United KingdomHQ recorded Nov 6, 20261-105 contacts →

Exact match

“At ACL Group, we design, install, and maintain high-performance plumbing, heating, and cooling systems for commercial and industrial environments.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchCoatbridge, United KingdomHQ recorded Nov 6, 202611-505 contacts →

Exact match

Recorded description not available.

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

Showing 25 of 175 geothermal maintenance services based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 331 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Geothermal maintenance services based in the United Kingdom at a glance

As of Nov 6, 2026
33.8%Verified-email coverage
5.6Average contacts per company
1-10Median size (employees)
5.7%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
107
11-50
46
51-200
10
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 175 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 maintenance services” 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 331 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.

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

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

RevenueBase identified 175 company matches for geothermal maintenance services 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?

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

Which city has the most geothermal maintenance services?

London leads with 10 company records, followed by Leicester (4) and Stockport (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 331 professional contacts with verified work emails tracked across these 175 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 175 geothermal maintenance services 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.