Company lists · Data refreshed September 2026

Top 25 Power plant maintenance contractors based in the United Kingdom

Name: Power plant maintenance contractors 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 139 companies tracked

RevenueBase identified 139 power plant maintenance contractors headquartered in the United Kingdom as of September 2026 and tracks 6,631 professional contacts across them, including 953 with verified work emails. London is the largest hub.

This list covers power plant maintenance contractors 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

139Companies

6,631Contacts tracked

953Verified emails

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The 25 largest power plant maintenance contractors based in the United Kingdom

Ranked by team size

Top 25 of 139 power plant maintenance contractors 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 power plant maintenance contractors: 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	GEV Wind Power	Strong evidence	Hull, United KingdomHQ checked Sep 17, 2026	501-1,000	440 contacts →
	Strong evidence “GEV Wind Power is the global leading wind turbine maintenance & repair specialist.” Source: RevenueBase Database · checked Sep 17, 2026
2	Quartzelec Limited	Indirect evidence	Rugby, United KingdomHQ checked Sep 17, 2026	501-1,000	412 contacts →
	Indirect evidence “Quartzelec is a leading independent electrical engineering group delivering solutions and services in both UK and global markets.” Source: RevenueBase Database · checked Sep 17, 2026
3	RWG Repair & Overhauls	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 17, 2026	201-500	316 contacts →
	Indirect evidence “RWG (Repair & Overhauls) Limited is a Siemens Energy business.” Source: RevenueBase Database · checked Sep 17, 2026
4	Rainham Industrial Services LTD	Strong evidence	Essex, United KingdomHQ checked Sep 17, 2026	501-1,000	264 contacts →
	Strong evidence “Rainham provides specialist industrial services that support the installation, maintenance, refurbishment, decommissioning and replacement of large industrial plants and building…” Source: RevenueBase Database · checked Sep 17, 2026
5	PJD Mechanical Engineering	Indirect evidence	Doncaster, United KingdomHQ checked Sep 17, 2026	51-200	86 contacts →
	Indirect 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
6	JBC	Partial evidence	Normanton, United KingdomHQ checked Sep 17, 2026	51-200	86 contacts →
	Partial evidence “JBC Industrial Services is the leading name in Industrial Boiler and Burner service, maintenance, and repair.” Source: RevenueBase Database · checked Sep 17, 2026
7	Fletcher Moorland	Indirect evidence	Stoke On Trent, United KingdomHQ checked Sep 17, 2026	51-200	75 contacts →
	Indirect evidence “Fletcher Moorland Ltd, are the experts in repairing, replacing, or upgrading Electric Motors, Pumps, Air Handling Units, Inverter Drives, Servo Motors, HMIs, PCBs, PSUs and more.” Source: RevenueBase Database · checked Sep 17, 2026
8	IPS Newcastle LTD	Partial evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 17, 2026	51-200	64 contacts →
	Partial 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
9	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
10	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
11	Alba Power	Partial evidence	Edinburgh, United KingdomHQ checked Sep 17, 2026	51-200	40 contacts →
	Partial evidence “Alba Power is the leading global independent for the provision of dedicated support services, to the aeroderivative/industrial gas turbine, power turbine and marine tyne turbines…” Source: RevenueBase Database · checked Sep 17, 2026
12	GES Group	Indirect evidence	Ballymena, United KingdomHQ checked Sep 17, 2026	51-200	38 contacts →
	Indirect evidence “Established over 40 years ago as Grants Electrical Services (NI) Ltd, we have grown into GES Group, a leading Electrical and Mechanical Engineering company, serving customers…” Source: RevenueBase Database · checked Sep 17, 2026
13	Turbine Services Limited	Indirect evidence	Glasgow, United KingdomHQ checked Sep 17, 2026	51-200	34 contacts →
	Indirect evidence “Turbine Services is a global provider to owners and operators of industrial gas turbines, offering an employee skill-base in excess of man-years of experience in gas turbine…” Source: RevenueBase Database · checked Sep 17, 2026
14	Rochem Fyrewash	Indirect evidence	Winchester, United KingdomHQ checked Sep 17, 2026	11-50	31 contacts →
	Indirect evidence “Rochem Technical Services are world leaders in gas turbine and process compressor cleaning technologies and cleaning chemicals (FYREWASH®).” Source: RevenueBase Database · checked Sep 17, 2026
15	LM Services NI LTD	Indirect evidence	Belfast, United KingdomHQ checked Sep 17, 2026	51-200	27 contacts →
	Indirect evidence “LM Services (NI) Ltd formerly known as LM Electric is an electrical and mechanical engineering company dedicated to developing solutions through the application of innovative…” Source: RevenueBase Database · checked Sep 17, 2026
16	Industrial Maintenance Services LTD	Partial evidence	Portsmouth, United KingdomHQ checked Sep 17, 2026	51-200	24 contacts →
	Partial evidence “IMS specialise in the maintenance of production equipment and associated infrastructure.” Source: RevenueBase Database · checked Sep 17, 2026
17	Central Group UK	Indirect evidence	Prescot, United KingdomHQ checked Sep 17, 2026	51-200	21 contacts →
	Indirect evidence “At Central we provide fast, workable and innovative solutions using our extensive experience in motors, pumps, drives and alternators.” Source: RevenueBase Database · checked Sep 17, 2026
18	Applied Power Engineering LTD	Partial evidence	Rotherham, United KingdomHQ checked Sep 17, 2026	11-50	21 contacts →
	Partial evidence “At Applied Power Engineering, we specialise in generator commissioning, optioneering, and generator installation, ensuring reliable power solutions tailored to your needs.” Source: RevenueBase Database · checked Sep 17, 2026
19	HK Engineering LTD	Indirect evidence	Melksham, United KingdomHQ checked Sep 17, 2026	11-50	20 contacts →
	Indirect evidence “HK Engineering Ltd is a leading engineering company specialising in electrical and gas testing and innovative solutions, with a solid commitment to excellence.” Source: RevenueBase Database · checked Sep 17, 2026
20	Cabel UK	Indirect evidence	Oakham, United KingdomHQ checked Sep 17, 2026	11-50	20 contacts →
	Indirect evidence “Cabel is a dedicated company specialising in the electromechanical industry offering the repair and rewind of rotating electrical equipment including alternators, pumps, motors…” Source: RevenueBase Database · checked Sep 17, 2026
21	CPM Engineering	Partial evidence	Manchester, United KingdomHQ checked Sep 17, 2026	11-50	19 contacts →
	Partial evidence “CPM Engineering are a Manchester based electrical and mechanical engineering company, offering reactive and preventative maintenance services to rotating machines.” Source: RevenueBase Database · checked Sep 17, 2026
22	Altofix LTD	Strong evidence	Sheffield, United KingdomHQ checked Sep 17, 2026	1-10	19 contacts →
	Strong evidence “Altofix primarily operates in the Power Generation sector carrying out inspection, maintenance, repair, NDT, rescue and boiler cleaning work (deslags) at EfW and Biomass plants…” Source: RevenueBase Database · checked Sep 17, 2026
23	Thomson LTD	Strong evidence	Hillam, United KingdomHQ checked Sep 17, 2026	51-200	16 contacts →
	Strong evidence “Specialist in overhaul and maintenance of energy from waste plants and industrial plants.” Source: RevenueBase Database · checked Sep 17, 2026
24	Luma Engineering LTD	Partial evidence	Canvey Island, United KingdomHQ checked Sep 17, 2026	11-50	15 contacts →
	Partial evidence “Luma Engineering Ltd is a company specialising in all aspects of preventative and reactive maintenance on all types of mechanical processing machinery.” Source: RevenueBase Database · checked Sep 17, 2026
25	Turbo-Machinery Services Limited	Indirect evidence	Bedford, United KingdomHQ checked Sep 17, 2026	11-50	14 contacts →
	Indirect evidence “Specialists in the service, repair and support of Steam Turbines and associated Industrial Rotating Machinery.” 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: power plant maintenance contractors. 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 power plant maintenance contractors.
Partial evidence: Its own public description names part of power plant maintenance contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name power plant maintenance contractors. 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 139 power plant maintenance contractors based in the United Kingdom

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Power plant maintenance contractors based in the United Kingdom at a glance

As of Sep 17, 2026

14.4%Verified-email coverage

47.7Average contacts per company

11-50Median size (employees)

4.3%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 139 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 power plant maintenance contractors, 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 “power plant maintenance contractors”. 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 power plant maintenance contractors), 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 power plant maintenance contractors, 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, 953 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.

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 power plant maintenance contractors, 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 power plant maintenance contractors are there based in the United Kingdom?

RevenueBase identified 139 power plant maintenance contractors 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?

GEV Wind Power, headquartered in Hull, tops this list with the largest team on record.

Which city has the most power plant maintenance contractors?

London leads with 6 headquartered companies, followed by Aberdeen (5) and Sheffield (5).

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 953 verified decision-maker contacts tracked across these 139 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.