Company lists · Data refreshed October 2026

Top 25 Data center engineering firms based in the United Kingdom

RevenueBase identified 347 company matches for data center engineering firms associated with the United Kingdom as of October 2026 and tracks 10,830 professional contacts across them, including 5,207 with verified work emails. London is the largest hub.

This list covers company matches for data center 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 11, 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 11, 2026 How this list was built
347Companies
10,830Contacts tracked
5,207Verified emails
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The 25 largest data center engineering firms based in the United Kingdom

Ranked by team size
Top 25 of 347 company matches for data center engineering firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 11, 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 matchLondon, United KingdomHQ recorded Oct 11, 20261,001-5,0002,009 contacts →

Exact match

“NTT Global Data Centers is a division of NTT DATA.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Oct 11, 2026501-1,000796 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Oct 11, 2026501-1,000620 contacts →

Exact match

“Onnec is a leading partner for IT Infrastructure design, installation and operational support services.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Oct 11, 2026201-500457 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Oct 11, 2026201-500433 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Oct 11, 2026501-1,000286 contacts →

Exact match

“Over the last 15 years, we have worked in the world's top data centres and commercial facilities, providing quality engineering services.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Oct 11, 2026201-500254 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
8Exact matchManchester, United KingdomHQ recorded Oct 11, 2026201-500239 contacts →

Exact match

“Sudlows is a multi-award winning Critical Infrastructures, Enterprise Services and Facilities Management specialist which provides a full range of technical services for…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Oct 11, 2026201-500196 contacts →

Exact match

“Creative ITC is a global cloud and managed services provider built for complex design, engineering, and business critical IT environments.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
10Exact matchBallymena, United KingdomHQ recorded Oct 11, 2026201-500168 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
11Exact matchWhitstable, United KingdomHQ recorded Oct 11, 202651-200158 contacts →

Exact match

“Recognised by the Financial Times as one of Europe's top 500 fastest-growing companies for three years running, Global Commissioning is the leading authority in data centre…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Oct 11, 2026501-1,000157 contacts →

Exact match

“Pareto Facilities Management.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
13Exact matchCorsham, United KingdomHQ recorded Oct 11, 202651-200133 contacts →

Exact match

“Ark empower businesses to work from anywhere in the world by designing and operating data centres which lead the market in social responsibility.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Oct 11, 202651-200132 contacts →

Exact match

“Deepscale Technologies provide data center, enterprise & managed IT solutions across the globe that enhance how businesses operate.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
15Exact matchReading, United KingdomHQ recorded Oct 11, 202651-200109 contacts →

Exact match

“The founders of MiCiM (Mission Critical Management)[pronounced "My Sim"] created the company with a shared vision: to offer a focused, end-to-end, hands-on project management and…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
16Exact matchBuntingford Herts, United KingdomHQ recorded Oct 11, 202651-200103 contacts →

Exact match

“OFFICIAL ACCOUNT* Datalec Precision Installations provides world-class data centre design, build, and installation services that leverage unique technical expertise, including…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Oct 11, 202651-20095 contacts →

Exact match

“We are Technimove.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
18Exact matchBromsgrove, United KingdomHQ recorded Oct 11, 2026201-50089 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Oct 11, 202651-20086 contacts →

Exact match

“ORM is now Paragon DCX.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
20Exact matchWokingham, United KingdomHQ recorded Oct 11, 202651-20071 contacts →

Exact match

“Future-tech is a specialist data centre engineering services provider.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
21Exact matchStockton-on-tees, United KingdomHQ recorded Oct 11, 202651-20067 contacts →

Exact match

“We would like to share some exciting news – Onyx Group has been acquired by cloud, colocation and managed hosting expert Pulsant, expanding its network to 15 UK-based datacentres.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
22Exact matchFleet, United KingdomHQ recorded Oct 11, 202651-20063 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
23Exact matchMiddlesbrough, United KingdomHQ recorded Oct 11, 202611-5045 contacts →

Exact match

“Durata is the trusted partner your business needs for critical power, legacy optimisation and modular data centre solutions.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Oct 11, 202611-5042 contacts →

Exact match

“Clear are a data center and energy infrastructure talent consultancy specialising in engineering, white collar construction, through to C-Suite on both permanent and contract…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Oct 11, 202651-20041 contacts →

Exact match

“We are a leading IT installation company offering complete infrastructure solutions within data centre and commercial sectors.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase

Showing 25 of 347 data center engineering firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 5,207 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Data center engineering firms based in the United Kingdom at a glance

As of Oct 11, 2026
48.1%Verified-email coverage
31.2Average contacts per company
11-50Median size (employees)
31.4%Largest-city concentration · London
Oct 11, 2026Page data refreshed

Companies by employee count

1-10
159
11-50
117
51-200
46
201-500
11
501-1,000
8
1,001-5,000
5

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 347 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 “data center 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 5,207 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 11, 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.

Data center engineering firms by metro

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 “data center engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many data center engineering firms are there based in the United Kingdom?

RevenueBase identified 347 company matches for data center 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?

NTT Global Data Centers tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most data center engineering firms?

London leads with 109 company records, followed by Manchester (9) and Leeds (7).

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 5,207 professional contacts with verified work emails tracked across these 347 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 11, 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.