Company lists · Data refreshed September 2026

Top 25 Data center equipment installation companies based in the United Kingdom

Name: Data center equipment installation 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 7, 2026 208 companies tracked

RevenueBase identified 208 data center equipment installation companies headquartered in the United Kingdom as of September 2026 and tracks 2,498 professional contacts across them, including 1,152 with verified work emails and 122 with mobile numbers. London is the largest hub.

This list covers data center equipment installation companies 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 7, 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 7, 2026 86% judged on-target in blind review

208Companies

2,498Contacts tracked

1,152Verified emails

122Mobile numbers

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The 25 largest data center equipment installation companies based in the United Kingdom

Ranked by team size

Top 25 of 208 data center equipment installation companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 7, 2026. RevenueBase Smart Search rates how each company's information relates to data center equipment installation companies: 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	ONNEC	Partial evidence	London, United KingdomHQ checked Sep 7, 2026	501-1,000	585 contacts →
	“Onnec is a leading partner for IT Infrastructure design, installation and operational support services.” Source: company website · checked Sep 7, 2026
2	Datalec Precision Installations Limited	Strong evidence	Buntingford Herts, United KingdomHQ checked Sep 7, 2026	51-200	178 contacts →
	“OFFICIAL ACCOUNT* Datalec Precision Installations provides world-class data centre design, build, and installation services that leverage unique technical expertise, including…” Source: company website · checked Sep 7, 2026
3	DOWDS	Indirect evidence	Ballymena, United KingdomHQ checked Sep 7, 2026	201-500	164 contacts →
	“With 45+ years in business, Dowds expertise spans the full lifecycle of complex build environments – from initial design and systems integration to final handover and beyond.” Source: company website · checked Sep 7, 2026
4	Twistedpair LTD	Indirect evidence	Portsmouth, United KingdomHQ checked Sep 7, 2026	51-200	83 contacts →
	“Connecting people, places, and possibilities through transformative workplace technology.” Source: company website · checked Sep 7, 2026
5	Future-Tech	Strong evidence	Wokingham, United KingdomHQ checked Sep 7, 2026	51-200	82 contacts →
	“Future-tech is a specialist data centre engineering services provider.” Source: company website · checked Sep 7, 2026
6	Switchshop Limited	Partial evidence	Kimpton, United KingdomHQ checked Sep 7, 2026	51-200	79 contacts →
	“Switchshop is a specialist designer, installer and provider of IT network equipment solutions and one of the UK's leading resellers of networking hardware.” Source: company website · checked Sep 7, 2026
7	IDS Group	Strong evidence	Fleet, United KingdomHQ checked Sep 7, 2026	51-200	56 contacts →
	“IDS Group are a global data centre and colocation specialist providing a variety of services to support our customers around the world from both our UK and Netherlands office…” Source: company website · checked Sep 7, 2026
8	Phoenix Trescray	Strong evidence	London, United KingdomHQ checked Sep 7, 2026	51-200	39 contacts →
	“We are a leading IT installation company offering complete infrastructure solutions within data centre and commercial sectors.” Source: company website · checked Sep 7, 2026
9	Astro Communications LTD	Indirect evidence	Dartford, United KingdomHQ checked Sep 7, 2026	11-50	39 contacts →
	“Astro Communications are experts in solving business challenges through the design, deployment and management of end-to-end communications and networking solutions.” Source: company website · checked Sep 7, 2026
10	Lan2lan	Partial evidence	Leatherhead, United KingdomHQ checked Sep 7, 2026	11-50	39 contacts →
	“LAN2LAN is a specialist systems integration, installation and project management organisation focused on driving technologically innovative solutions that deliver intelligent…” Source: company website · checked Sep 7, 2026
11	Bladeroom Data Centres	Strong evidence	Cheltenham, United KingdomHQ checked Sep 7, 2026	51-200	37 contacts →
	“BladeRoom Data Centres are designed to be globally consistent and deployable anywhere in the world with speed and precision.” Source: company website · checked Sep 7, 2026
12	Excel IT	Indirect evidence	Grays, United KingdomHQ checked Sep 7, 2026	201-500	35 contacts →
	“Excel builds, supports and optimises the IT infrastructure, networks and connectivity which drive global business performance.” Source: company website · checked Sep 7, 2026
13	Talkwire	Partial evidence	Melksham, United KingdomHQ checked Sep 7, 2026	51-200	34 contacts →
	“Experts for Physical IT Installations Nationwide Whether building network cabinets, fitting devices, integrating complex IT systems, or installing professional IT infrastructure…” Source: company website · checked Sep 7, 2026
14	Studionwa	Strong evidence	St Albans, United KingdomHQ checked Sep 7, 2026	11-50	33 contacts →
	“studioNWA is founded on a vast understanding and experience of the data centre design.” Source: company website · checked Sep 7, 2026
15	Infiniti IT Limited	Strong evidence	Witney, United KingdomHQ checked Sep 7, 2026	1-10	29 contacts →
	“INFINITI is a one-stop data centre services provider with an eye for detail and outstanding customer service.” Source: company website · checked Sep 7, 2026
16	Critical Facilities Solutions LTD	Strong evidence	Witham, United KingdomHQ checked Sep 7, 2026	51-200	27 contacts →
	“Data Centre Solutions Critical Facilities Solutions (CFS) is a world-class facilities services business with more than 25 years’ experience working in Data Centre and Enterprise…” Source: company website · checked Sep 7, 2026
17	Prism DCS	Strong evidence	Watford, United KingdomHQ checked Sep 7, 2026	51-200	26 contacts →
	“Prism DCS is a data centre solutions provider specialising in the provision of hot & cold aisle containment, server cabinets, and security cages.” Source: company website · checked Sep 7, 2026
18	Deerns UK	Indirect evidence	London, United KingdomHQ checked Sep 7, 2026	501-1,000	24 contacts →
	“An independent mechanical and electrical engineering firm which operates worldwide, Deerns has the capacity to make ideas a reality.” Source: company website · checked Sep 7, 2026
19	Nexus Fusion	Indirect evidence	Milton Keynes, United KingdomHQ checked Sep 7, 2026	11-50	22 contacts →
	“Unveiling the Nexus of Possibilities Since launching in 2016, our mission has been to inspire the best people to transform the way in which our clients do business.” Source: company website · checked Sep 7, 2026
20	DWM Technical Solutions LTD	Indirect evidence	Wilden, United KingdomHQ checked Sep 7, 2026	11-50	20 contacts →
	“DWM Technical Solutions Ltd is an innovative organisation striving to research, design and install cutting edge technology into the networking, audio visual and electrical sectors.” Source: company website · checked Sep 7, 2026
21	APTO	Strong evidence	London, United KingdomHQ checked Sep 7, 2026	11-50	19 contacts →
	“Apto deliver highly customised, built-to-suit data centre capacity to help fast track your entry into high-potential markets that will drive future demand.” Source: company website · checked Sep 7, 2026
22	EDP Europe Limited	Strong evidence	Witham, United KingdomHQ checked Sep 7, 2026	11-50	17 contacts →
	“EDP Europe specialises in the supply of critical infrastructure solutions for the data centre environment.” Source: company website · checked Sep 7, 2026
23	Piran Technologies	Indirect evidence	Redruth, United KingdomHQ checked Sep 7, 2026	11-50	16 contacts →
	“Since 2004, we’ve been helping businesses to reduce costs and become more innovative by designing, implementing and supporting IT systems that improve reliability and increase…” Source: company website · checked Sep 7, 2026
24	Efficiencyit	Strong evidence	Dorking, United KingdomHQ checked Sep 7, 2026	11-50	15 contacts →
	“At EfficiencyIT, our mission is to challenge the status quo of what's achievable versus what's acceptable in data centres, IT, and critical communications environments.” Source: company website · checked Sep 7, 2026
25	The Datek Group	Partial evidence	Slough, United KingdomHQ checked Sep 7, 2026	11-50	15 contacts →
	“The Datek Group Limited is an infrastructure services company specialising in data cabling located in Slough.” Source: company website · checked Sep 7, 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 equipment installation companies. 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 equipment installation companies.
Partial evidence: Its own public description names part of data center equipment installation companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name data center equipment installation companies. 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 208 data center equipment installation companies based in the United Kingdom

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Data center equipment installation companies based in the United Kingdom at a glance

As of Sep 7, 2026

46.1%Verified-email coverage

4.9%Mobile-number coverage

12.0Average contacts per company

1-10Median size (employees)

23.1%Largest-city concentration · London

Sep 7, 2026Page data refreshed

Companies by employee count

1-10

106

11-50

51-200

201-500

501-1,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

1,0390–30

11131–60

061–90

090–180

2180+

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 equipment installation companies, 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 equipment installation companies”. 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 equipment installation companies), 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 equipment installation companies, 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, 1,152 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 7, 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 equipment installation companies by metro

Data center equipment installation companies in London48

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 equipment installation companies, 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 equipment installation companies are there based in the United Kingdom?

RevenueBase identified 208 data center equipment installation companies 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?

ONNEC, headquartered in London, tops this list with the largest team on record.

Which city has the most data center equipment installation companies?

London leads with 48 headquartered companies, followed by Birmingham (4) and London London (3).

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 1,152 verified decision-maker contacts tracked across these 208 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 7, 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.