Company lists · Data refreshed September 2026

Top 25 Renewable energy maintenance companies based in the United Kingdom

Name: Renewable energy maintenance companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 497 companies tracked

RevenueBase identified 497 renewable energy maintenance companies headquartered in the United Kingdom as of September 2026 and tracks 8,573 professional contacts across them, including 2,718 with verified work emails. London is the largest hub.

This list covers renewable energy maintenance companies headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 17, 2026.

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

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

497Companies

8,573Contacts tracked

2,718Verified emails

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The 25 largest renewable energy maintenance companies based in the United Kingdom

Ranked by team size

Top 25 of 497 renewable energy maintenance companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to renewable energy maintenance companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	RES	Strong evidence	Kings Langley, United KingdomHQ checked Sep 17, 2026	1,001-5,000	3,721 contacts →
	Strong evidence “RES is the world’s largest independent renewable energy company, working across 24 countries and active in wind, solar, energy storage, green hydrogen, transmission, and…” Source: RevenueBase Database · checked Sep 17, 2026
2	GEV Wind Power	Partial evidence	Hull, United KingdomHQ checked Sep 17, 2026	501-1,000	440 contacts →
	Partial evidence “GEV Wind Power is the global leading wind turbine maintenance & repair specialist.” Source: RevenueBase Database · checked Sep 17, 2026
3	Aurora Energy Services	Partial evidence	Inverness, United KingdomHQ checked Sep 17, 2026	201-500	253 contacts →
	Partial evidence “Aurora Energy Services is an international, multi-disciplinary company delivering integrated solutions across the full energy asset lifecycles.” Source: RevenueBase Database · checked Sep 17, 2026
4	Seatrium Offshore Renewable Services LTD	Strong evidence	Lowestoft, United KingdomHQ checked Sep 17, 2026	n/a	155 contacts →
	Strong evidence “Seatrium Offshore Renewable Services Ltd (Seatrium ORS) has over 55 years of unparalleled expertise and experience in the offshore energy industry.” Source: RevenueBase Database · checked Sep 17, 2026
5	RTS Wind UK	Strong evidence	Middlesbrough, United KingdomHQ checked Sep 17, 2026	51-200	119 contacts →
	Strong evidence “RTS Wind Limited specialise in the provision of services to the onshore and offshore renewable energy sector.” Source: RevenueBase Database · checked Sep 17, 2026
6	AES	Strong evidence	Enfield, United KingdomHQ checked Sep 17, 2026	201-500	112 contacts →
	Strong evidence “As renewable energy technology experts, we have the knowledge and skills to help commercial clients switch to a greener, lower cost and more independent energy source.” Source: RevenueBase Database · checked Sep 17, 2026
7	PJD Mechanical Engineering	Partial evidence	Doncaster, United KingdomHQ checked Sep 17, 2026	51-200	86 contacts →
	Partial evidence “PJD Mechanical Engineering Ltd Ltd has worked with a number of leading clients, operators and technology companies throughout the UK energy sector for over 30 years.” Source: RevenueBase Database · checked Sep 17, 2026
8	CPS Building Services LTD	Strong evidence	Cambridge, United KingdomHQ checked Sep 17, 2026	51-200	85 contacts →
	Strong evidence “CPS Building Services Ltd are experts in design, installation and maintenance of all mechanical and electrical services including renewables.” Source: RevenueBase Database · checked Sep 17, 2026
9	Purdy Part Of Sureserve	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	201-500	85 contacts →
	Indirect evidence “Who are we?” Source: RevenueBase Database · checked Sep 17, 2026
10	Cobalt Energy	Strong evidence	Stockport, United KingdomHQ checked Sep 17, 2026	201-500	73 contacts →
	Strong evidence “Cobalt Energy, established in 2009, is an independent engineering and operational services company operating in the renewable energy and waste to resources sectors.” Source: RevenueBase Database · checked Sep 17, 2026
11	Cpower Energy LTD	Partial evidence	Colchester, United KingdomHQ checked Sep 17, 2026	n/a	72 contacts →
	Partial evidence “CPower Energy was set up in August 2015 to service a wide variety of jobs within both the Construction and O&M phase of Onshore and Offshore Windfarms.” Source: RevenueBase Database · checked Sep 17, 2026
12	Dulas LTD	Strong evidence	Machynlleth, United KingdomHQ checked Sep 17, 2026	51-200	64 contacts →
	Strong evidence “With over 35 years of experience in the clean energy sector, Dulas is an award-winning renewable energy installer and consultancy, specialising in the wind, solar and hydro…” Source: RevenueBase Database · checked Sep 17, 2026
13	IPS Newcastle LTD	Indirect evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 17, 2026	51-200	64 contacts →
	Indirect evidence “IPS Newcastle, part of the Integrated Power Services Group, improves the performance of electromechanical assets around the world.” Source: RevenueBase Database · checked Sep 17, 2026
14	MKE Engineering Group	Indirect evidence	Sittingbourne, United KingdomHQ checked Sep 17, 2026	51-200	63 contacts →
	Indirect evidence “MKE Engineering (Mid Kent Electrical) is the largest independent engineering service provider of its kind in the South East, operating from 3 different sites covering Kent…” Source: RevenueBase Database · checked Sep 17, 2026
15	Powerforce Global	Partial evidence	Bristol, United KingdomHQ checked Sep 17, 2026	51-200	62 contacts →
	Partial evidence “We are a global provider of flexible and robust Field Service solutions to Original Equipment Manufacturers (OEMs) and Plant Owners across the Energy & Utilities sector.” Source: RevenueBase Database · checked Sep 17, 2026
16	Aventus Energy	Partial evidence	Alness, United KingdomHQ checked Sep 17, 2026	11-50	57 contacts →
	Partial evidence “Aventus Energy Ltd is a recently formed Scottish Highland based company operating from our bespoke premises in Alness.” Source: RevenueBase Database · checked Sep 17, 2026
17	Ecolution Group	Strong evidence	Trottiscliffe, United KingdomHQ checked Sep 17, 2026	51-200	55 contacts →
	Strong evidence “Renewable Energy Experts: For over 25 years, Ecolution have been at the forefront of renewable energy services, using our award-winning expertise, to help our clients innovate and…” Source: RevenueBase Database · checked Sep 17, 2026
18	Coast Renewable Services	Indirect evidence	Broughty Ferry, United KingdomHQ checked Sep 17, 2026	11-50	55 contacts →
	Indirect evidence “With safety as our fundamental priority, our objective is to offer solutions with highly competent and trained personnel possessing the necessary skills for your business tasks.” Source: RevenueBase Database · checked Sep 17, 2026
19	Alt-Group	Strong evidence	Worcester, United KingdomHQ checked Sep 17, 2026	51-200	51 contacts →
	Strong evidence “Alt-Group is a forward-thinking, renewable energy company; advising on, installing and maintaining excellent renewable systems including Solar PV, EV Charging & Batteries.” Source: RevenueBase Database · checked Sep 17, 2026
20	Earthmill Maintenance LTD	Partial evidence	Harrogate, United KingdomHQ checked Sep 17, 2026	11-50	44 contacts →
	Partial evidence “Earthmill Maintenance Ltd, part of the European Green Transition plc group, are specialists in the maintenance of agricultural wind turbines.” Source: RevenueBase Database · checked Sep 17, 2026
21	Turner Iceni	Indirect evidence	Lowestoft, United KingdomHQ checked Sep 17, 2026	51-200	44 contacts →
	Indirect evidence “Turner Iceni, part of the Turner Group, is engaged in the supply and servicing of wind turbine generator equipment and associated wind farm infrastructure, as well as the…” Source: RevenueBase Database · checked Sep 17, 2026
22	Brighter Green Engineering	Partial evidence	High Wycombe, United KingdomHQ checked Sep 17, 2026	51-200	43 contacts →
	Partial evidence “Brighter Green Engineering (BGE) is a specialist operations and maintenance provider for ground-mounted, utility-scale solar assets across the United Kingdom.” Source: RevenueBase Database · checked Sep 17, 2026
23	Solmatix Renewables LTD	Strong evidence	Dundrod Rd, United KingdomHQ checked Sep 17, 2026	11-50	41 contacts →
	Strong evidence “Founded in 2008, Solmatix is one of the UK's and Ireland's leading renewable energy specialists, delivering innovative, high-quality energy solutions for commercial, industrial…” Source: RevenueBase Database · checked Sep 17, 2026
24	GW Power	Strong evidence	Hull, United KingdomHQ checked Sep 17, 2026	11-50	41 contacts →
	Strong evidence “Choose GW Power for your electrical, mechanical and renewable installation and maintenance needs, and benefit from dependable service, expert support and quality workmanship.” Source: RevenueBase Database · checked Sep 17, 2026
25	Solarsense UK Certified B Corporation	Strong evidence	Clevedon, United KingdomHQ checked Sep 17, 2026	51-200	39 contacts →
	Strong evidence “SolarSense specialise in the design, installation and maintenance of solar panels, energy storage, solar carports and other renewable energy technologies.” Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: renewable energy maintenance companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names renewable energy maintenance companies.
Partial evidence: Its own public description names part of renewable energy maintenance companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable energy maintenance companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 497 renewable energy maintenance companies based in the United Kingdom

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Renewable energy maintenance companies based in the United Kingdom at a glance

As of Sep 17, 2026

31.7%Verified-email coverage

17.2Average contacts per company

1-10Median size (employees)

7.6%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

262

11-50

171

51-200

201-500

501-1,000

1,001-5,000

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 497 companies.

How this list was built

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

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United Kingdom whose own description of what they do matches “renewable energy maintenance companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names renewable energy maintenance companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among renewable energy maintenance companies, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 2,718 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 17, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Renewable energy maintenance companies by metro

Renewable energy maintenance companies in London38

Frequently asked

What is RevenueBase Smart Search?

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

How many renewable energy maintenance companies are there based in the United Kingdom?

RevenueBase identified 497 renewable energy maintenance companies headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

RES, headquartered in Kings Langley, tops this list with the largest team on record.

Which city has the most renewable energy maintenance companies?

London leads with 38 headquartered companies, followed by Glasgow (10) and Bristol (8).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,718 verified decision-maker contacts tracked across these 497 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 2026.

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About this data

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