Company lists · Data refreshed September 2026

Top 25 Data center power infrastructure specialists based in the United Kingdom

Name: Data center power infrastructure specialists based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 532 companies tracked

RevenueBase identified 532 data center power infrastructure specialists headquartered in the United Kingdom as of September 2026 and tracks 11,107 professional contacts across them, including 4,878 with verified work emails. London is the largest hub.

This list covers data center power infrastructure specialists 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 19, 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 19, 2026 86% judged on-target in blind review

532Companies

11,107Contacts tracked

4,878Verified emails

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The 25 largest data center power infrastructure specialists based in the United Kingdom

Ranked by team size

Top 25 of 532 data center power infrastructure specialists based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to data center power infrastructure specialists: 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	RED Engineering Design	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	501-1,000	785 contacts →
	Strong evidence “RED Engineering Design, a company of Tractebel, is a global engineering consultancy specialising in the design of complex, mission-critical Data Centre and digital infrastructure…” Source: RevenueBase Database · checked Sep 19, 2026
2	ONNEC	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	501-1,000	585 contacts →
	Partial evidence “Onnec is a leading partner for IT Infrastructure design, installation and operational support services.” Source: RevenueBase Database · checked Sep 19, 2026
3	Colt Data Centre Services	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	415 contacts →
	Strong evidence “At Colt Data Centre Services, we aspire to our customers’ success, ensuring your growth is supported by the best infrastructure solution for your business’ unique vision.” Source: RevenueBase Database · checked Sep 19, 2026
4	Global Switch	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	405 contacts →
	Strong evidence “Global Switch owns and operates sq ft sq m) of exceptional large-scale, multi customer, carrier and cloud neutral data centre space across Europe and Asia-Pacific.” Source: RevenueBase Database · checked Sep 19, 2026
5	Avk-Seg	Strong evidence	Maidenhead, United KingdomHQ checked Sep 19, 2026	201-500	272 contacts →
	Strong evidence “AVK is the largest and fastest-growing supplier of innovative power solutions for data centres, AI infrastructure and leading organisations in the UK and Europe.” Source: RevenueBase Database · checked Sep 19, 2026
6	Smart Managed Solutions	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	501-1,000	259 contacts →
	Strong evidence “Over the last 15 years, we have worked in the world's top data centres and commercial facilities, providing quality engineering services.” Source: RevenueBase Database · checked Sep 19, 2026
7	Datacenterdynamics	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	245 contacts →
	Partial evidence “Empowering individuals who plan, build, operate, and supply digital infrastructure to make informed decisions faster.” Source: RevenueBase Database · checked Sep 19, 2026
8	Virtus Data Centres	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	237 contacts →
	Strong evidence “VIRTUS Data Centres (VIRTUS) is a trusted global leader in the data centre industry and the UK’s leading data centre company, committed to delivering reliable, resilient and…” Source: RevenueBase Database · checked Sep 19, 2026
9	Sudlows	Strong evidence	Manchester, United KingdomHQ checked Sep 19, 2026	201-500	228 contacts →
	Strong evidence “Sudlows is a multi-award winning Critical Infrastructures, Enterprise Services and Facilities Management specialist which provides a full range of technical services for…” Source: RevenueBase Database · checked Sep 19, 2026
10	Dale Power Solutions	Partial evidence	Scarborough, United KingdomHQ checked Sep 19, 2026	201-500	214 contacts →
	Partial 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 19, 2026
11	Datalec Precision Installations Limited	Strong evidence	Buntingford Herts, United KingdomHQ checked Sep 19, 2026	51-200	178 contacts →
	Strong evidence “OFFICIAL ACCOUNT* Datalec Precision Installations provides world-class data centre design, build, and installation services that leverage unique technical expertise, including…” Source: RevenueBase Database · checked Sep 19, 2026
12	WB Power Services LTD	Partial evidence	Heanor, United KingdomHQ checked Sep 19, 2026	51-200	168 contacts →
	Partial evidence “WB Power Services Ltd (now proudly part of Rehlko) provide critical power services to some of the UK’s most important businesses and organisations, ensuring essential services are…” Source: RevenueBase Database · checked Sep 19, 2026
13	Asee Group	Partial evidence	Newry, United KingdomHQ checked Sep 19, 2026	51-200	151 contacts →
	Partial evidence “ASEE Group is a leader in mechanical and electrical engineering, specialising in generator integration and full-service installations for 45+ years.” Source: RevenueBase Database · checked Sep 19, 2026
14	Finning Power & Energy	Partial evidence	Cannock, United KingdomHQ checked Sep 19, 2026	1,001-5,000	141 contacts →
	Partial evidence “Finning Power & Energy is a division of Finning, the sole dealer for Caterpillar in the UK & Ireland.” Source: RevenueBase Database · checked Sep 19, 2026
15	BCS Consultancy	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	132 contacts →
	Strong evidence “Bringing data centre projects to life on time and budget.” Source: RevenueBase Database · checked Sep 19, 2026
16	ARK Data Centres	Strong evidence	Corsham, United KingdomHQ checked Sep 19, 2026	51-200	125 contacts →
	Strong evidence “Ark empower businesses to work from anywhere in the world by designing and operating data centres which lead the market in social responsibility.” Source: RevenueBase Database · checked Sep 19, 2026
17	ADE Power	Partial evidence	Pontefract, United KingdomHQ checked Sep 19, 2026	201-500	125 contacts →
	Partial evidence “ADE Power have over 25 years of experience at the forefront of the design, manufacture, and fit-out of precision engineered acoustic and modular enclosures for the packaging of…” Source: RevenueBase Database · checked Sep 19, 2026
18	Darke & Taylor LTD	Indirect evidence	Oxfordshire, United KingdomHQ checked Sep 19, 2026	51-200	112 contacts →
	Indirect evidence “Our mission is to excel in the design, installation and maintenance of the electro-technical systems that connect to create fit for purpose building environments.” Source: RevenueBase Database · checked Sep 19, 2026
19	Power Control LTD	Partial evidence	Eckington, United KingdomHQ checked Sep 19, 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 19, 2026
20	Riello UPS LTD	Partial evidence	Wrexham, United KingdomHQ checked Sep 19, 2026	51-200	95 contacts →
	Partial evidence “Riello UPS Ltd is a leader in the manufacture of uninterruptible power supplies (UPS) from 400 VA to 6.4 MVA and standby generators from 8 kVA to 2.5 MVA.” Source: RevenueBase Database · checked Sep 19, 2026
21	Yorpower	Indirect evidence	Sherburn In Elmet, United KingdomHQ checked Sep 19, 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 19, 2026
22	Excool	Strong evidence	Bromsgrove, United KingdomHQ checked Sep 19, 2026	201-500	90 contacts →
	Strong evidence “Established in 2010, Excool has consistently led the industry in designing, developing, and delivering unique energy-efficient cooling solutions for data centers across the globe.” Source: RevenueBase Database · checked Sep 19, 2026
23	Technimove	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	87 contacts →
	Indirect evidence “We are Technimove.” Source: RevenueBase Database · checked Sep 19, 2026
24	Shenton Group	Partial evidence	Andover, United KingdomHQ checked Sep 19, 2026	51-200	85 contacts →
	Partial evidence “The UK's leading Technical Experts in Standby Power, Uninterruptible Power Supplies and Combined Heat & Power Systems.” Source: RevenueBase Database · checked Sep 19, 2026
25	Future-Tech	Strong evidence	Wokingham, United KingdomHQ checked Sep 19, 2026	51-200	82 contacts →
	Strong evidence “Future-tech is a specialist data centre engineering services provider.” Source: RevenueBase Database · checked Sep 19, 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: data center power infrastructure specialists. 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 data center power infrastructure specialists.
Partial evidence: Its own public description names part of data center power infrastructure specialists, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name data center power infrastructure specialists. 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 532 data center power infrastructure specialists based in the United Kingdom

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Data center power infrastructure specialists based in the United Kingdom at a glance

As of Sep 19, 2026

43.9%Verified-email coverage

20.9Average contacts per company

11-50Median size (employees)

19.7%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

205

11-50

217

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 532 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 data center power infrastructure specialists, 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 “data center power infrastructure specialists”. 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 data center power infrastructure specialists), 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 data center power infrastructure specialists, 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, 4,878 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 19, 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.

Data center power infrastructure specialists by metro

Data center power infrastructure specialists in London105

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 data center power infrastructure specialists, 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 data center power infrastructure specialists are there based in the United Kingdom?

RevenueBase identified 532 data center power infrastructure specialists 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?

RED Engineering Design, headquartered in London, tops this list with the largest team on record.

Which city has the most data center power infrastructure specialists?

London leads with 105 headquartered companies, followed by Manchester (12) and Nottingham (8).

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 4,878 verified decision-maker contacts tracked across these 532 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 19, 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.