Company lists · Data refreshed October 2026

Top 25 Hydroelectric power engineering firms based in the United Kingdom

RevenueBase identified 101 company matches for hydroelectric power engineering firms associated with the United Kingdom as of October 2026 and tracks 2,215 professional contacts across them, including 430 with verified work emails. London is the largest hub.

This list covers company matches for hydroelectric power engineering firms 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 October 14, 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 Oct 14, 2026 How this list was built
101Companies
2,215Contacts tracked
430Verified emails
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The 25 largest hydroelectric power engineering firms based in the United Kingdom

Ranked by team size
Top 25 of 101 company matches for hydroelectric power engineering firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 14, 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 matchBristol, United KingdomHQ recorded Oct 14, 202651-200127 contacts →

Exact match

“Powered by People.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
2Exact matchSmall Dole, United KingdomHQ recorded Oct 14, 202651-200124 contacts →

Exact match

“Mackley provides a comprehensive range of services from conception through construction to project delivery.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
3Exact matchKendal, United KingdomHQ recorded Oct 14, 202651-200111 contacts →

Exact match

“Gilkes delivers innovative, single source solutions to the Small Hydropower and High Horsepower Engine markets.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
4Exact matchLeicester, United KingdomHQ recorded Oct 14, 202651-20058 contacts →

Exact match

“Kelvin Power provides expert advice and design solutions to the global power industry and the renewable energy sector.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
5Exact matchBirkenhead, United KingdomHQ recorded Oct 14, 202651-20057 contacts →

Exact match

“The SeaKing Group offers specialist electrical engineering services to the marine, industrial, commercial, military and offshore sectors.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
6Exact matchBarnsley, United KingdomHQ recorded Oct 14, 202651-20049 contacts →

Exact match

“Founded in 1860, Qualter Hall owns a continuous history of engineering excellence in the UK and internationally.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
7Exact matchPerivale, United KingdomHQ recorded Oct 14, 202651-20044 contacts →

Exact match

“Durkin and Sons have for 40 years been a go-to partner for National Grid, and DNO organisations, who continue to entrust the delivery of large HV & EHV cabling projects to us.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
8Exact matchStockport Cheshire, United KingdomHQ recorded Oct 14, 202651-20031 contacts →

Exact match

“Our scope of services extends across the full project lifecycle, from feasibility studies and design, through to installation, commissioning, ongoing routine and reactive…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Oct 14, 20261-1027 contacts →

Exact match

“ELTRADE ELECTRICAL LTD is a civil engineering company”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
10Exact matchWakefield, United KingdomHQ recorded Oct 14, 202611-5025 contacts →

Exact match

“KGAL offers a complete structural, mechanical, electrical and hydraulic engineering service through all stages of a project, from conceptual design development to final…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
11Exact matchPerth, United KingdomHQ recorded Oct 14, 202611-5023 contacts →

Exact match

“We are one of the leading developers and operators of hydropower.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
12Exact matchBristol, United KingdomHQ recorded Oct 14, 202611-5020 contacts →

Exact match

“PSE 2 Consulting is an independent power systems consultancy firm offering tailored solutions to meet the challenges and economic pressures present in the power industry.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
13Exact matchMiddlesbrough, United KingdomHQ recorded Oct 14, 202611-5020 contacts →

Exact match

“IMH is a leading hydraulic engineering company headquartered in the UK and operating internationally.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
14Exact matchWimborne, United KingdomHQ recorded Oct 14, 202611-5019 contacts →

Exact match

“Hydroplan is a leading UK hydropower consultancy specialising in the design, construction and project management of small to medium sized hydropower projects in the UK and…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
15Exact matchSwansea, United KingdomHQ recorded Oct 14, 202611-5018 contacts →

Exact match

“EPS Construction is your full service engineering partner, offering solutions in your everyday needs.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
16Exact matchDingwall, United KingdomHQ recorded Oct 14, 202611-5015 contacts →

Exact match

“Wallace Stone (formerly Wallace Stone & Partners) was established in 1973 and is a member of the Association for Consultancy and Engineering.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
17Exact matchLuton, United KingdomHQ recorded Oct 14, 202611-5015 contacts →

Exact match

“We specialise in power and infrastructure works, delivering high-voltage (HV) and low-voltage (LV) services across the Transport, Energy, and Defence sectors.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
18Exact matchWinchester, United KingdomHQ recorded Oct 14, 202611-5014 contacts →

Exact match

“PSS POWER ENGINEERING LTD is a high-voltage electrical engineering company based in South East England, United Kingdom.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
19Exact matchBirmingham, United KingdomHQ recorded Oct 14, 202611-5013 contacts →

Exact match

“Central Power Ltd is a High Voltage power engineering company, specialising in the design and construction of electrical power infrastructure for high voltage customers and…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
20Exact matchIpswich, United KingdomHQ recorded Oct 14, 202611-5012 contacts →

Exact match

“Established in 1985, M&C Engineering has a wealth of knowledge and experience, as well as an ever-expanding team of highly skilled engineers.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
21Exact matchBristol, United KingdomHQ recorded Oct 14, 20261-1011 contacts →

Exact match

“HV Energy Systems provide a comprehensive suite of engineering services for the management, maintenance, and development of new and existing infrastructure within the electrical…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
22Exact matchStroud, United KingdomHQ recorded Oct 14, 202611-509 contacts →

Exact match

“UK leader in hydropower consultancy, environmental licensing, detailed design and specification, project management and installation.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
23Exact matchGlasgow, United KingdomHQ recorded Oct 14, 202611-509 contacts →

Exact match

“Charles Scott and Partners is an independent firm of Consulting Engineers which provides a wide range of multi-disciplined engineering services to clients in the public and…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
24Exact matchMatlock, United KingdomHQ recorded Oct 14, 20261-107 contacts →

Exact match

“DERWENT HYDROELECTRIC POWER LIMITED is a specialist hydropower company, involved in all aspects of UK hydro.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
25Exact matchCookstown, United KingdomHQ recorded Oct 14, 202611-507 contacts →

Exact match

“LDC Electrics LTD specialise in the design through to commissioning and testing of a wide range of electrical services for a variety of industries such as water, commericial…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase

Showing 25 of 101 hydroelectric power engineering firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 430 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hydroelectric power engineering firms based in the United Kingdom at a glance

As of Oct 14, 2026
19.4%Verified-email coverage
21.9Average contacts per company
1-10Median size (employees)
7.9%Largest-city concentration · London
Oct 14, 2026Page data refreshed

Companies by employee count

1-10
63
11-50
23
51-200
12
201-500
1
5,001-10,000
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 101 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 “hydroelectric power engineering firms” 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 430 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 October 14, 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 “hydroelectric power engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hydroelectric power engineering firms are there based in the United Kingdom?

RevenueBase identified 101 company matches for hydroelectric power engineering firms associated with the United Kingdom as of October 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?

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

Which city has the most hydroelectric power engineering firms?

London leads with 8 company records, followed by Birmingham (3) and Bristol (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 430 professional contacts with verified work emails tracked across these 101 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 October 14, 2026.

Ready to reach these companies? Verified emails and direct dials for all 101 hydroelectric power engineering firms 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.