Company lists · Data refreshed September 2026

Top 25 Hydropower maintenance services based in the United Kingdom

Name: Hydropower maintenance services based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 68 companies tracked

RevenueBase identified 68 hydropower maintenance services headquartered in the United Kingdom as of September 2026 and tracks 1,857 professional contacts across them, including 818 with verified work emails. Sheffield is the largest hub.

This list covers hydropower maintenance services 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 20, 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 20, 2026 86% judged on-target in blind review

68Companies

1,857Contacts tracked

818Verified emails

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The 25 largest hydropower maintenance services based in the United Kingdom

Ranked by team size

Top 25 of 68 hydropower maintenance services based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to hydropower maintenance services: 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	Partial evidence	Hull, United KingdomHQ checked Sep 20, 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 20, 2026
2	Quartzelec Limited	Indirect evidence	Rugby, United KingdomHQ checked Sep 20, 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 20, 2026
3	RWG Repair & Overhauls	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 20, 2026	201-500	316 contacts →
	Indirect evidence “RWG (Repair & Overhauls) Limited is a Siemens Energy business.” Source: RevenueBase Database · checked Sep 20, 2026
4	Gilbert Gilkes And Gordon LTD	Partial evidence	Kendal, United KingdomHQ checked Sep 20, 2026	51-200	104 contacts →
	Partial evidence “Gilkes delivers innovative, single source solutions to the Small Hydropower and High Horsepower Engine markets.” Source: RevenueBase Database · checked Sep 20, 2026
5	Fletcher Moorland	Indirect evidence	Stoke On Trent, United KingdomHQ checked Sep 20, 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 20, 2026
6	IPS Newcastle LTD	Indirect evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 20, 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 20, 2026
7	MKE Engineering Group	Indirect evidence	Sittingbourne, United KingdomHQ checked Sep 20, 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 20, 2026
8	Alba Power	Indirect evidence	Edinburgh, United KingdomHQ checked Sep 20, 2026	51-200	40 contacts →
	Indirect 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 20, 2026
9	TDC Parsons Peebles	Indirect evidence	Dunfermline, United KingdomHQ checked Sep 20, 2026	51-200	28 contacts →
	Indirect evidence “TDC Parsons Peebles design, manufacture, test, install and commission high voltage motors, generators and rotary frequency converters in the range 3.3kV to 13.8kV and up to 50MW…” Source: RevenueBase Database · checked Sep 20, 2026
10	Green Highland A Voith Company	Partial evidence	Perth, United KingdomHQ checked Sep 20, 2026	11-50	22 contacts →
	Partial evidence “We are one of the leading developers and operators of hydropower.” Source: RevenueBase Database · checked Sep 20, 2026
11	Central Group UK	Indirect evidence	Prescot, United KingdomHQ checked Sep 20, 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 20, 2026
12	D H Renewables LTD	Indirect evidence	Kirkcaldy, United KingdomHQ checked Sep 20, 2026	11-50	21 contacts →
	Indirect evidence “Experienced in all major manufacturers, D H Renewables provide pre-assembly, main assembly, commissioning, troubleshooting and service, including all statutory inspection works on…” Source: RevenueBase Database · checked Sep 20, 2026
13	Cabel UK	Indirect evidence	Oakham, United KingdomHQ checked Sep 20, 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 20, 2026
14	Turbo-Machinery Services Limited	Indirect evidence	Bedford, United KingdomHQ checked Sep 20, 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 20, 2026
15	Gearserv Limited	Indirect evidence	York, United KingdomHQ checked Sep 20, 2026	1-10	11 contacts →
	Indirect evidence “GearServ is an independent wind turbine and industrial rotating equipment service provider.” Source: RevenueBase Database · checked Sep 20, 2026
16	ROLLO	Indirect evidence	Bristol, United KingdomHQ checked Sep 20, 2026	11-50	10 contacts →
	Indirect evidence “Operating since 1933, Rollo has a long, established and successful heritage in the power generation and plant industries.” Source: RevenueBase Database · checked Sep 20, 2026
17	A-Techs Wind Limited	Indirect evidence	York, United KingdomHQ checked Sep 20, 2026	1-10	8 contacts →
	Indirect evidence “A-Techs is a business built on experience, our wind turbine technicians are sourced from OEM backgrounds with a high level of experience and understanding both mechanically and…” Source: RevenueBase Database · checked Sep 20, 2026
18	RE Field Services LTD	Indirect evidence	Sheffield, United KingdomHQ checked Sep 20, 2026	11-50	7 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
19	Northern Turbine Services Limited	Indirect evidence	Hatston Industrial Estate, United KingdomHQ checked Sep 20, 2026	11-50	5 contacts →
	Indirect evidence “Northern Turbine Services specialise in providing wind turbine servicing and repair solutions throughout the UK.” Source: RevenueBase Database · checked Sep 20, 2026
20	Task-Pro	Partial evidence	Kintore, United KingdomHQ checked Sep 20, 2026	1-10	5 contacts →
	Partial evidence “Mechanical Service Providers To The Oil & Gas Sector And Automotive Industry Primarily a maintenance company, we undertake overhaul, repair, upgrade, maintenance, and supply of…” Source: RevenueBase Database · checked Sep 20, 2026
21	Houghton International	Indirect evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 20, 2026	51-200	4 contacts →
	Indirect evidence “Houghton International improves the performance of electro mechanical assets around the world.” Source: RevenueBase Database · checked Sep 20, 2026
22	DB Fluid Control	Indirect evidence	Glasgow, United KingdomHQ checked Sep 20, 2026	1-10	4 contacts →
	Indirect evidence “DB Fluid Control have a policy of investing in some of the most advanced hydraulic analysis equipment available.” Source: RevenueBase Database · checked Sep 20, 2026
23	Dynamic Mechanical Services LTD	Indirect evidence	Barnsley, United KingdomHQ checked Sep 20, 2026	1-10	3 contacts →
	Indirect evidence “Dynamic provides specialist mechanical and electrical services for commercial and industrial customers.” Source: RevenueBase Database · checked Sep 20, 2026
24	S2l Generators Limited	Indirect evidence	Fobbing, United KingdomHQ checked Sep 20, 2026	11-50	2 contacts →
	Indirect evidence “Supply 2 Location Generators Ltd specialise in providing electrical and mechanical engineering support the the diesel power generation industry.” Source: RevenueBase Database · checked Sep 20, 2026
25	Heat Pump Servicing Limited	Partial evidence	Barnstaple, United KingdomHQ checked Sep 20, 2026	1-10	2 contacts →
	Partial evidence “Based in Barnstaple and Exeter, and with over 10 years of experience of maintaining renewable energy systems, HPSL can offer a full range of service, maintenance and repair…” Source: RevenueBase Database · checked Sep 20, 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: hydropower maintenance services. 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 hydropower maintenance services.
Partial evidence: Its own public description names part of hydropower maintenance services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name hydropower maintenance services. 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 68 hydropower maintenance services based in the United Kingdom

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Hydropower maintenance services based in the United Kingdom at a glance

As of Sep 20, 2026

44.0%Verified-email coverage

27.3Average contacts per company

1-10Median size (employees)

4.4%Largest-city concentration · Sheffield

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 68 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 hydropower maintenance services, 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 “hydropower maintenance services”. 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 hydropower maintenance services), 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 hydropower maintenance services, 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, 818 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 20, 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 hydropower maintenance services, 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 hydropower maintenance services are there based in the United Kingdom?

RevenueBase identified 68 hydropower maintenance services 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 hydropower maintenance services?

Sheffield leads with 3 headquartered companies, followed by Aberdeen (2) and Glasgow (2).

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 818 verified decision-maker contacts tracked across these 68 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 20, 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.