Company lists · Data refreshed September 2026

Top 25 Power quality solutions providers based in the United Kingdom

Name: Power quality solutions providers 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 105 companies tracked

RevenueBase identified 105 power quality solutions providers headquartered in the United Kingdom as of September 2026 and tracks 1,430 professional contacts across them, including 445 with verified work emails. London is the largest hub.

This list covers power quality solutions providers 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

105Companies

1,430Contacts tracked

445Verified emails

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The 25 largest power quality solutions providers based in the United Kingdom

Ranked by team size

Top 25 of 105 power quality solutions providers 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 power quality solutions providers: 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	MTL	Indirect evidence	Luton, United KingdomHQ checked Sep 20, 2026	n/a	345 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
2	Dale Power Solutions	Strong evidence	Scarborough, United KingdomHQ checked Sep 20, 2026	201-500	214 contacts →
	Strong evidence “Founded in 1935 Dale Power Solutions Ltd have been providing reliable; secure power solutions for mission critical services & systems throughout the world.” Source: RevenueBase Database · checked Sep 20, 2026
3	Power Control LTD	Partial evidence	Eckington, United KingdomHQ checked Sep 20, 2026	51-200	97 contacts →
	Partial evidence “Power Control Ltd is now proudly part of Legrand, a leading European manufacturer of innovative, reliable, and efficient UPS systems.” Source: RevenueBase Database · checked Sep 20, 2026
4	Yorpower	Indirect evidence	Sherburn In Elmet, United KingdomHQ checked Sep 20, 2026	51-200	93 contacts →
	Indirect evidence “YorPower are multi award winning company with their head office based in the UK.” Source: RevenueBase Database · checked Sep 20, 2026
5	UPS Systems PLC	Strong evidence	Swindon, United KingdomHQ checked Sep 20, 2026	11-50	51 contacts →
	Strong evidence “UPS Systems PLC are the UK’s leading independent supplier of standby power and occupy a unique position in the provision of back-up power solutions to businesses of all sizes.” Source: RevenueBase Database · checked Sep 20, 2026
6	Lewden	Strong evidence	Braintree, United KingdomHQ checked Sep 20, 2026	51-200	38 contacts →
	Strong evidence “Lewden, a subsidiary of Palazzoli S.p.A, offers electrical power distribution solutions for industrial, construction, commercial, domestic and event sectors.” Source: RevenueBase Database · checked Sep 20, 2026
7	Enspec Power LTD	Indirect evidence	St. Helens, United KingdomHQ checked Sep 20, 2026	11-50	37 contacts →
	Indirect evidence “Hello, we’re Enspec.” Source: RevenueBase Database · checked Sep 20, 2026
8	EDS HV Group	Partial evidence	Haslingden, United KingdomHQ checked Sep 20, 2026	51-200	37 contacts →
	Partial evidence “High Voltage Engineering Solutions, from conceptual design, through to installation and O&M.” Source: RevenueBase Database · checked Sep 20, 2026
9	PE Systems LTD	Strong evidence	Wigan, United KingdomHQ checked Sep 20, 2026	51-200	29 contacts →
	Strong evidence “PE Systems are a UK OEM specialising in both AC/DC Power Protection Solutions.” Source: RevenueBase Database · checked Sep 20, 2026
10	BCL Power	Partial evidence	Milton Keynes, United KingdomHQ checked Sep 20, 2026	11-50	21 contacts →
	Partial evidence “Established in 1994, BCL Power was originally a stationary battery maintenance company.” Source: RevenueBase Database · checked Sep 20, 2026
11	Prism Power Group	Partial evidence	Watford, United KingdomHQ checked Sep 20, 2026	11-50	19 contacts →
	Partial evidence “Prism Power Group is a global Switchgear and Critical Power Systems provider based in London, UK.” Source: RevenueBase Database · checked Sep 20, 2026
12	Mercury Power LTD	Partial evidence	Surrey, United KingdomHQ checked Sep 20, 2026	11-50	18 contacts →
	Partial evidence “Mercury Power Limited have an extensive team of experienced industry experts who specialise in all critical power projects.” Source: RevenueBase Database · checked Sep 20, 2026
13	Energyace LTD	Partial evidence	Chorley, United KingdomHQ checked Sep 20, 2026	11-50	18 contacts →
	Partial evidence “EnergyAce are one of the leading manufactures of energy saving systems in the form of Power Factor Correction, Voltage Management Systems, Voltage Optimisation and Voltage…” Source: RevenueBase Database · checked Sep 20, 2026
14	Power Capacitors	Strong evidence	Birmingham, United KingdomHQ checked Sep 20, 2026	11-50	16 contacts →
	Strong evidence “Founded on engineering excellence, continuous innovation and a customer-first approach, we specialise in providing not just products, but complete power quality solutions that…” Source: RevenueBase Database · checked Sep 20, 2026
15	Aylesford Electrical Contractors LTD	Indirect evidence	Maidstone, United KingdomHQ checked Sep 20, 2026	11-50	14 contacts →
	Indirect evidence “Aylesford Electrical is a specialist testing, maintenance and installation provider based in Kent.” Source: RevenueBase Database · checked Sep 20, 2026
16	Tdk-Lambda Emea	Partial evidence	Devon, United KingdomHQ checked Sep 20, 2026	501-1,000	14 contacts →
	Partial evidence “TDK-Lambda, a subsidiary of the TDK Corporation, is a leading global power supply company providing highly reliable power supplies for medical and industrial equipment worldwide.” Source: RevenueBase Database · checked Sep 20, 2026
17	Power Control & Automation Solutions LTD Pcas	Strong evidence	Sheffield, United KingdomHQ checked Sep 20, 2026	11-50	14 contacts →
	Strong evidence “Keeping Power in Your Hands ” At Power Control & Automation Solutions Ltd, we don’t just provide services-we deliver peace of mind.” Source: RevenueBase Database · checked Sep 20, 2026
18	Critical Power Supplies LTD	Strong evidence	Thame, United KingdomHQ checked Sep 20, 2026	11-50	13 contacts →
	Strong evidence “Critical Power Supplies is a leading independent UK multi-brand supplier of critical power and energy solutions including uninterruptible power supplies and standby power…” Source: RevenueBase Database · checked Sep 20, 2026
19	Constant Power Services Limited	Strong evidence	Letchworth Garden City, United KingdomHQ checked Sep 20, 2026	11-50	13 contacts →
	Strong evidence “Since the late 80’s Constant Power Services Ltd has excelled in providing support to businesses seeking quality uninterruptible power supplies, installation, and aftercare.” Source: RevenueBase Database · checked Sep 20, 2026
20	Ashley Edison International LTD	Strong evidence	Guildford, United KingdomHQ checked Sep 20, 2026	51-200	12 contacts →
	Strong evidence “Boldly future-oriented while never losing sight of the past, Ashley-Edison(UK) is a time-tested that delivers trusted power quality solutions to your electrical systems-without…” Source: RevenueBase Database · checked Sep 20, 2026
21	TSE Power	Partial evidence	Canvey Island, United KingdomHQ checked Sep 20, 2026	11-50	12 contacts →
	Partial evidence “Profile TSE has extensive experience in the Uninterruptible Power Supply (UPS) market.” Source: RevenueBase Database · checked Sep 20, 2026
22	Johnson & Phillips	Strong evidence	Newport, United KingdomHQ checked Sep 20, 2026	11-50	11 contacts →
	Strong evidence “Power Distribution System & Solutions Engineers to 66kV Switchboards LV & MV - Power Factor Correction - Transformers Installation, Maintenance, Supply, Repair, Service and…” Source: RevenueBase Database · checked Sep 20, 2026
23	Lucy Electric UK Limited	Indirect evidence	Oxford, United KingdomHQ checked Sep 20, 2026	51-200	11 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
24	Watford Control Instruments LTD	Indirect evidence	Corby, United KingdomHQ checked Sep 20, 2026	11-50	11 contacts →
	Indirect evidence “True World Leadership In Voltage Control and Voltage Optimisation World status is all too easy to claim but Watford Control can offer solid proof.” Source: RevenueBase Database · checked Sep 20, 2026
25	Power Engineering Consultants PLC	Partial evidence	Alderley Edge, United KingdomHQ checked Sep 20, 2026	11-50	11 contacts →
	Partial evidence “Power Engineering Consultants is a consultant and contractor in all aspects of electrical power systems and it works for clients both large and small.” 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: power quality solutions providers. 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 quality solutions providers.
Partial evidence: Its own public description names part of power quality solutions providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name power quality solutions providers. 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 105 power quality solutions providers based in the United Kingdom

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Power quality solutions providers based in the United Kingdom at a glance

As of Sep 20, 2026

31.1%Verified-email coverage

13.6Average contacts per company

11-50Median size (employees)

3.8%Largest-city concentration · London

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 105 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 quality solutions providers, 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 quality solutions providers”. 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 quality solutions providers), 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 quality solutions providers, 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, 445 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 power quality solutions providers, 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 quality solutions providers are there based in the United Kingdom?

RevenueBase identified 105 power quality solutions providers 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?

MTL, headquartered in Luton, tops this list with the largest team on record.

Which city has the most power quality solutions providers?

London leads with 4 headquartered companies, followed by Scarborough (3) and Doncaster (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 445 verified decision-maker contacts tracked across these 105 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.