Company lists · Data refreshed September 2026

Top 25 Data center management consultants based in London, United Kingdom

Name: Data center management consultants based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 317 companies tracked

RevenueBase identified 317 data center management consultants headquartered in London, United Kingdom as of September 2026 and tracks 9,353 professional contacts across them, including 4,529 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers data center management consultants headquartered in London, 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 28, 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 28, 2026 86% judged on-target in blind review

317Companies

9,353Contacts tracked

4,529Verified emails

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The 25 largest data center management consultants based in London, United Kingdom

Ranked by team size

Top 25 of 317 data center management consultants based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to data center management consultants: 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	NTT Global Data Centers	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	1,842 contacts →
	Strong evidence “NTT Global Data Centers is a division of NTT DATA.” Source: RevenueBase Database · checked Sep 28, 2026
2	Delta Capita	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	976 contacts →
	Indirect evidence “Delta Capita is a leading global Capital Markets consulting, managed services, and technology provider with a unique combination of experience in financial services and capability…” Source: RevenueBase Database · checked Sep 28, 2026
3	RED Engineering Design	Strong evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
4	ONNEC	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
5	Colt Data Centre Services	Strong evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
6	Zenzero	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	501-1,000	401 contacts →
	Indirect evidence “We believe successful businesses are underpinned by quality IT infrastructure.” Source: RevenueBase Database · checked Sep 28, 2026
7	Cartesian	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	302 contacts →
	Indirect evidence “Cartesian is a specialist consulting firm focused on the global telecommunications, media, and technology industries and is now part of Bounteous, an AI services firm helping…” Source: RevenueBase Database · checked Sep 28, 2026
8	Smart Managed Solutions	Strong evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
9	Datacenterdynamics	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	245 contacts →
	Indirect evidence “Empowering individuals who plan, build, operate, and supply digital infrastructure to make informed decisions faster.” Source: RevenueBase Database · checked Sep 28, 2026
10	Wanstor	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	227 contacts →
	Indirect evidence “Wanstor: Experience First \| AI Fluent \| Secure by Default Wanstor is a trusted Managed IT Services company that helps ambitious organisations leverage technology to achieve better…” Source: RevenueBase Database · checked Sep 28, 2026
11	Creative ITC	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	173 contacts →
	Indirect evidence “Creative ITC is a global cloud and managed services provider built for complex design, engineering, and business critical IT environments.” Source: RevenueBase Database · checked Sep 28, 2026
12	Deepscale Technologies LTD	Strong evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
13	ZTP	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	115 contacts →
	Indirect evidence “At ZTP, we’re committed to accelerating the transition to a more sustainable future by reducing the negative impact of human activity on our planet - ecologically, financially…” Source: RevenueBase Database · checked Sep 28, 2026
14	CJC LTD	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	99 contacts →
	Strong evidence “Founded in CJC is the leading independent market data technology consultancy and services firm.” Source: RevenueBase Database · checked Sep 28, 2026
15	Sysgroup	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	89 contacts →
	Partial evidence “SysGroup is the services leader for realising AI transformation, as an award-winning managed IT services, cloud hosting, and IT consultancy provider.” Source: RevenueBase Database · checked Sep 28, 2026
16	Alfa Energy An Edison Energy Company	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	88 contacts →
	Partial evidence “Alfa Energy Group (an Edison Energy company) is an international energy, sustainability and technology consultant partner with 200 employees over four international locations.” Source: RevenueBase Database · checked Sep 28, 2026
17	Technimove	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	87 contacts →
	Indirect evidence “We are Technimove.” Source: RevenueBase Database · checked Sep 28, 2026
18	ORM	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	82 contacts →
	Indirect evidence “ORM is now Paragon DCX.” Source: RevenueBase Database · checked Sep 28, 2026
19	Cloudscouts	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	49 contacts →
	Partial evidence “Experts in architecting, building, and supporting Enterprise Performance Management, Business Intelligence, Analytical, and Technology solutions.” Source: RevenueBase Database · checked Sep 28, 2026
20	TH NK	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	n/a	41 contacts →
	Indirect evidence “You can now find us over at EPAM Continuum.” Source: RevenueBase Database · checked Sep 28, 2026
21	CLEAR	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	36 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
22	Tiberone	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	33 contacts →
	Indirect evidence “At Tiberone, we specialize in solving corporate IT problems by designing, building, and supporting solutions that drive results.” Source: RevenueBase Database · checked Sep 28, 2026
23	B-612 Remote Hands & Eyes Support	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	33 contacts →
	Strong evidence “Trusted Partner of Your Network Infrastructure Managing network infrastructure in Data-Centres on behalf of a wide range of colocation users since 2009, B-612 offers a…” Source: RevenueBase Database · checked Sep 28, 2026
24	MIX Consultancy LTD	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	32 contacts →
	Strong evidence “MiX is an independent consultancy specialising in IT Infrastructure, Communication, Data Centre, Audio Visual, Physical Security & SMART Buildings Technology Solutions.” Source: RevenueBase Database · checked Sep 28, 2026
25	Stablelogic	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	32 contacts →
	Partial evidence “StableLogic is a technology consultancy specialising in customer contact, networking, software development and cloud expertise.” Source: RevenueBase Database · checked Sep 28, 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 management consultants. 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 management consultants.
Partial evidence: Its own public description names part of data center management consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name data center management consultants. 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 317 data center management consultants based in London, United Kingdom

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Data center management consultants based in London, United Kingdom at a glance

As of Sep 28, 2026

48.4%Verified-email coverage

29.5Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

180

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 317 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 management consultants, 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 London, United Kingdom whose own description of what they do matches “data center management consultants”. 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 management consultants), 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 management consultants, and records with no verified work email. Companies headquartered outside London 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, 4,529 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 28, 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 data center management consultants, 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 management consultants are there based in London, United Kingdom?

RevenueBase identified 317 data center management consultants headquartered in London, 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?

NTT Global Data Centers, headquartered in London, tops this list with the largest team on record.

Which city in the United Kingdom has the most data center management consultants?

London leads the United Kingdom with 317 headquartered companies, followed by Manchester (24) and Bristol (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 4,529 verified decision-maker contacts tracked across these 317 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 28, 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.