Company lists · Data refreshed September 2026

Top 25 Power quality engineering companies based in the United Kingdom

Name: Power quality engineering 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 358 companies tracked

RevenueBase identified 358 company matches for power quality engineering companies associated with the United Kingdom as of September 2026 and tracks 45,069 professional contacts across them, including 9,742 with verified work emails. London is the largest hub.

This list covers company matches for power quality engineering companies 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 September 17, 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 Sep 17, 2026 How this list was built

358Companies

45,069Contacts tracked

9,742Verified emails

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The 25 largest power quality engineering companies based in the United Kingdom

Ranked by team size

Top 25 of 358 company matches for power quality engineering companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	WOOD	Exact match	Aberdeen, United KingdomHQ recorded Sep 17, 2026	10001+	26,949 contacts →
	Exact match “Wood is a global leader in consulting and engineering, delivering critical solutions across energy and materials markets.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Brush Group	Exact match	Loughborough, United KingdomHQ recorded Sep 17, 2026	501-1,000	367 contacts →
	Exact match “We support the global drive to net zero with innovative, engineered solutions that address grid resilience and systems challenges, facilitate electrification of transport and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Actemium UK	Exact match	Birmingham, United KingdomHQ recorded Sep 17, 2026	501-1,000	190 contacts →
	Exact match “At Actemium UK, we are expert electrical, automation and mechanical engineers delivering bespoke engineering solutions across industry, infrastructure and beyond.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Z-Tech Control Systems LTD	Exact match	Swavesey, United KingdomHQ recorded Sep 17, 2026	201-500	156 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Powersystems	Exact match	Bristol, United KingdomHQ recorded Sep 17, 2026	51-200	126 contacts →
	Exact match “Powered by People.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Global Substation Solutions LTD	Exact match	Hebburn, United KingdomHQ recorded Sep 17, 2026	51-200	75 contacts →
	Exact match “Established in 2006, Global Substation Solutions Ltd (GSS) are a dynamic power system engineering company, providing turnkey project services to the UK and international…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	IPEC	Exact match	Manchester, United KingdomHQ recorded Sep 17, 2026	11-50	64 contacts →
	Exact match “IPEC Limited was founded in 1995 with the objective of transferring cutting-edge technology to the power industry by generating a dialogue between academic research, industry, and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	JBA Engineering	Exact match	Wynyard, United KingdomHQ recorded Sep 17, 2026	11-50	63 contacts →
	Exact match “JBA are industry-leading consultants, providing flexible engineering and design solutions, procurement, and construction services.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	ETA Projects LTD	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	62 contacts →
	Exact match “Chosen to deliver, trusted to care - for 30 years we’ve worked with clients across a diverse range of sectors to deliver safe and sustainable engineering solutions that prioritise…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Kelvin Power Member Of Vinci Energies	Exact match	Leicester, United KingdomHQ recorded Sep 17, 2026	51-200	57 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 · Sep 17, 2026 · View company records in RevenueBase
11	Lloyd Morris Electrical LTD	Exact match	Wrexham, United KingdomHQ recorded Sep 17, 2026	51-200	47 contacts →
	Exact match “Lloyd Morris Electrical Limited is a company of Electrical Engineers, specialising in the design, manufacture and installation of Electrical Distribution and Control Systems for…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Whitfield Consulting Services	Exact match	Surbiton, United KingdomHQ recorded Sep 17, 2026	51-200	43 contacts →
	Exact match “At Whitfield Consulting Services we believe infrastructure requires more than just a one-off design.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	JGC Engineering And Technical Services LTD	Exact match	Thurso, United KingdomHQ recorded Sep 17, 2026	51-200	42 contacts →
	Exact match “JGC is one of the UK's leading engineering companies with the breadth and depth of technical expertise to respond to the daily complex challenges of major engineering projects.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Energyline LTD	Exact match	Copgrove, United KingdomHQ recorded Sep 17, 2026	51-200	39 contacts →
	Exact match “Energyline Ltd is a growing multi-disciplinary consultancy specialising in the design, survey, investigation and consenting of power system projects including overhead lines and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	GES Group	Exact match	Ballymena, United KingdomHQ recorded Sep 17, 2026	51-200	38 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Enspec Power LTD	Exact match	St. Helens, United KingdomHQ recorded Sep 17, 2026	11-50	37 contacts →
	Exact match “Hello, we’re Enspec.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	PMK	Exact match	Dungannon, United KingdomHQ recorded Sep 17, 2026	51-200	37 contacts →
	Exact match “PMK has been providing comprehensive electrical engineering services across the UK and Ireland for over 40 years.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	EDS HV Group	Exact match	Haslingden, United KingdomHQ recorded Sep 17, 2026	51-200	37 contacts →
	Exact match “High Voltage Engineering Solutions, from conceptual design, through to installation and O&M.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Integrum Power Engineering	Exact match	Stockport Cheshire, United KingdomHQ recorded Sep 17, 2026	51-200	36 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 · Sep 17, 2026 · View company records in RevenueBase
20	Durkin And Sons Power And Civil Engineers	Exact match	Perivale, United KingdomHQ recorded Sep 17, 2026	51-200	35 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 · Sep 17, 2026 · View company records in RevenueBase
21	Fivefour Engineering Services	Exact match	Theale, United KingdomHQ recorded Sep 17, 2026	51-200	35 contacts →
	Exact match “FiveFour Engineering Service work within the United Kingdom, Central Europe and Scandinavia for clients that have power requirements in either traditional methods of new build or…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Industrial Switchgear Services LTD	Exact match	Hyde, United KingdomHQ recorded Sep 17, 2026	51-200	30 contacts →
	Exact match “ISS Ltd are a HV/LV Power Engineering company operating nationwide, undertaking Turnkey Electrical Distribution Projects and Site Service activities, including installation…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Emissis	Exact match	Stokesley, United KingdomHQ recorded Sep 17, 2026	51-200	29 contacts →
	Exact match “Engineering energy efficiency that pays off.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Enisca	Exact match	Cookstown, United KingdomHQ recorded Sep 17, 2026	51-200	28 contacts →
	Exact match “Enisca is a multi-disciplinary design, engineering and construction business operating in the power and environmental sectors delivering innovative, sustainable and quality…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	3eco LTD	Exact match	Witney, United KingdomHQ recorded Sep 17, 2026	11-50	28 contacts →
	Exact match “3ECO Ltd is a consultancy firm that operates in the electrical and railway sectors.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “power quality engineering companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 358 power quality engineering companies based in the United Kingdom

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Power quality engineering companies based in the United Kingdom at a glance

As of Sep 17, 2026

21.6%Verified-email coverage

125.9Average contacts per company

1-10Median size (employees)

9.5%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

218

11-50

51-200

201-500

501-1,000

10001+

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 358 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 “power quality engineering companies” 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 9,742 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 September 17, 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 “power quality engineering companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many power quality engineering companies are there based in the United Kingdom?

RevenueBase identified 358 company matches for power quality engineering companies associated with the United Kingdom as of September 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?

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

Which city has the most power quality engineering companies?

London leads with 34 company records, followed by Manchester (11) and Aberdeen (8).

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 9,742 professional contacts with verified work emails tracked across these 358 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 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 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.