Company lists · Data refreshed September 2026

Top 25 Data center facilities management companies based in the United Kingdom

Name: Data center facilities management 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 19, 2026 585 companies tracked

RevenueBase identified 585 data center facilities management companies headquartered in the United Kingdom as of September 2026 and tracks 37,107 professional contacts across them, including 9,772 with verified work emails. London is the largest hub.

This list covers data center facilities management 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 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

585Companies

37,107Contacts tracked

9,772Verified emails

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The 25 largest data center facilities management companies based in the United Kingdom

Ranked by team size

Top 25 of 585 data center facilities management companies 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 facilities management 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	MITIE	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	10001+	13,908 contacts →
	Strong evidence “Founded in 1987, Mitie is the UK’s leading facilities management and professional services company.” Source: RevenueBase Database · checked Sep 19, 2026
2	OCS	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	10001+	7,982 contacts →
	Indirect evidence “Customers across all sectors depend on secure, optimised environments that enable end users to achieve their goals and purpose.” Source: RevenueBase Database · checked Sep 19, 2026
3	City Facilities Management Holdings LTD	Strong evidence	Glasgow, United KingdomHQ checked Sep 19, 2026	10001+	1,571 contacts →
	Strong evidence “Inspired to make a positive change to the facilities management industry, Willie and Susan Haughey established City Refrigeration Holdings (UK) Ltd in 1985.” Source: RevenueBase Database · checked Sep 19, 2026
4	Arcus FM	Strong evidence	Upminster, United KingdomHQ checked Sep 19, 2026	1,001-5,000	1,023 contacts →
	Strong evidence “Arcus FM is an award-winning full-service facilities management company self-delivering over 80% of our services across the UK.” Source: RevenueBase Database · checked Sep 19, 2026
5	Emcor UK	Strong evidence	Surrey, United KingdomHQ checked Sep 19, 2026	1,001-5,000	909 contacts →
	Strong evidence “At EMCOR UK, we revolutionise facilities management by combining our unique engineering heritage and innovation capability.” Source: RevenueBase Database · checked Sep 19, 2026
6	ONNEC	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	501-1,000	585 contacts →
	Indirect evidence “Onnec is a leading partner for IT Infrastructure design, installation and operational support services.” Source: RevenueBase Database · checked Sep 19, 2026
7	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
8	Vertas Group Limited	Strong evidence	Ipswich, United KingdomHQ checked Sep 19, 2026	1,001-5,000	359 contacts →
	Strong evidence “At Vertas Group, we are passionate about creating sustainable and innovative solutions in facilities management.” Source: RevenueBase Database · checked Sep 19, 2026
9	Aspire Defence Services Limited	Indirect evidence	Tidworth, United KingdomHQ checked Sep 19, 2026	501-1,000	324 contacts →
	Indirect evidence “In July 2016 we celebrated our first ten years delivering fully serviced, new and refurbished working and living accommodation to the Army at Tidworth, Bulford, Larkhill…” Source: RevenueBase Database · checked Sep 19, 2026
10	Inviron Rebranded To Dalkia UK	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	501-1,000	312 contacts →
	Indirect evidence “Exciting news - we have rebranded to Dalkia in the UK.” Source: RevenueBase Database · checked Sep 19, 2026
11	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
12	14forty	Strong evidence	Rednal, United KingdomHQ checked Sep 19, 2026	1,001-5,000	254 contacts →
	Strong evidence “Integrated facilities management services with a purpose.” Source: RevenueBase Database · checked Sep 19, 2026
13	Anabas	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	501-1,000	243 contacts →
	Strong evidence “Anabas is a dedicated facilities management company specialising in exceptional service delivery for our clients operating in corporate workplaces.” Source: RevenueBase Database · checked Sep 19, 2026
14	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
15	Tenon FM UK	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1,001-5,000	207 contacts →
	Indirect evidence “Tenon FM is one of the fastest growing FM providers in the world – not just the UK.” Source: RevenueBase Database · checked Sep 19, 2026
16	Excellerate Services UK & Ireland	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	5,001-10,000	194 contacts →
	Partial evidence “Excellerate Services I Where Better Begins At the centre of everything we do is a simple idea: every space we touch, we leave better than before.” Source: RevenueBase Database · checked Sep 19, 2026
17	The Westgrove Group	Strong evidence	Warrington, United KingdomHQ checked Sep 19, 2026	1,001-5,000	182 contacts →
	Strong evidence “At The Westgrove Group, we specialise in delivering comprehensive facilities management services tailored to meet the dynamic needs of our diverse clients.” Source: RevenueBase Database · checked Sep 19, 2026
18	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
19	Pareto Facilities Management LTD	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	501-1,000	150 contacts →
	Strong evidence “Pareto Facilities Management.” Source: RevenueBase Database · checked Sep 19, 2026
20	Artic Building Services	Strong evidence	Dartford, United KingdomHQ checked Sep 19, 2026	201-500	145 contacts →
	Strong evidence “Delivering bespoke Facilities Management services for over 25 years.” Source: RevenueBase Database · checked Sep 19, 2026
21	Premier Support Services Group	Indirect evidence	Birmingham, United KingdomHQ checked Sep 19, 2026	1,001-5,000	142 contacts →
	Indirect evidence “Premier Support Services is a national company delivering a wide range of hard and soft services.” Source: RevenueBase Database · checked Sep 19, 2026
22	Deepscale Technologies LTD	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	141 contacts →
	Strong evidence “Deepscale Technologies provide data center, enterprise & managed IT solutions across the globe that enhance how businesses operate.” Source: RevenueBase Database · checked Sep 19, 2026
23	Phosters	Strong evidence	Kidderminster, United KingdomHQ checked Sep 19, 2026	1,001-5,000	137 contacts →
	Strong evidence “Phosters are a national facilities management provider, offering Total FM services and outsourced services, with capabilities covering operational, technical, commercial…” Source: RevenueBase Database · checked Sep 19, 2026
24	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
25	Evolve Facility Services LTD	Strong evidence	Widnes, United KingdomHQ checked Sep 19, 2026	501-1,000	129 contacts →
	Strong evidence “Evolve Facility Services is a professional repairs, maintenance and facilities management company that is a commercial subsidiary of Riverside Group.” 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 facilities management 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 facilities management companies.
Partial evidence: Its own public description names part of data center facilities management 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 facilities management 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 585 data center facilities management companies based in the United Kingdom

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Data center facilities management companies based in the United Kingdom at a glance

As of Sep 19, 2026

26.3%Verified-email coverage

63.4Average contacts per company

11-50Median size (employees)

20.3%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

212

11-50

202

51-200

100

201-500

501-1,000

1,001-5,000

5,001-10,000

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 585 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 facilities management 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 facilities management 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 facilities management 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 facilities management 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, 9,772 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 facilities management companies by metro

Data center facilities management companies in London119

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 facilities management 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 facilities management companies are there based in the United Kingdom?

RevenueBase identified 585 data center facilities management 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?

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

Which city has the most data center facilities management companies?

London leads with 119 headquartered companies, followed by Birmingham (19) and Manchester (14).

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 9,772 verified decision-maker contacts tracked across these 585 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.