Company lists · Data refreshed November 2026

Top 25 Telecom colocation providers based in the United Kingdom

RevenueBase identified 72 company matches for telecom colocation providers associated with the United Kingdom as of November 2026 and tracks 9,498 professional contacts across them, including 5,354 with verified work emails. London is the largest hub.

This list covers company matches for telecom colocation providers 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 November 6, 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 Nov 6, 2026 How this list was built
72Companies
9,498Contacts tracked
5,354Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest telecom colocation providers based in the United Kingdom

Ranked by team size
Top 25 of 72 company matches for telecom colocation providers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 Nov 6, 20261,001-5,0002,070 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Nov 6, 2026201-500436 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 · Nov 6, 2026 · View company records in RevenueBase
3Exact matchDundee, United KingdomHQ recorded Nov 6, 202651-20082 contacts →

Exact match

“Brightsolid is expert in all things colocation, cloud and cyber security.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchStockton-on-tees, United KingdomHQ recorded Nov 6, 202651-20070 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 · Nov 6, 2026 · View company records in RevenueBase
5Exact matchFleet, United KingdomHQ recorded Nov 6, 202651-20068 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 · Nov 6, 2026 · View company records in RevenueBase
6Exact matchHamilton, United KingdomHQ recorded Nov 6, 202611-5033 contacts →

Exact match

“Asanti is a colocation data centre provider, created by a team who have a wealth of industry experience designing, deploying and managing data centres.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchHampshire, United KingdomHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“Datum delivers service-enhanced colocation from its network of sustainable, carrier neutral data centres which provide a platform for digital transformation offering flexible…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSutton Coldfield, United KingdomHQ recorded Nov 6, 202611-5027 contacts →

Exact match

“Workspace Technology Ltd provide expertly engineered Mission Critical Infrastructure, Rack Colocation Hosting and Maintenance & Support Services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchCrossways Business Park, United KingdomHQ recorded Nov 6, 202651-20025 contacts →

Exact match

“At Custodian we’re dedicated to setting a new standard in dynamic, multi-site colocation services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchWelwyn Garden City, United KingdomHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“Coreix is a managed hosting, colocation and network services provider which offers secure, agile, scalable and robust hosting solutions to clients in varying sectors including…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchPortsmouth, United KingdomHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“We focus on the quality of our service, infrastructure, and most importantly, the support of our customers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchCoventry, United KingdomHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“UK Servers is a provider of high speed dedicated servers, colocation, cloud solutions and high availability cloud internet services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchManchester, United KingdomHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“From our purpose-built and highly secure UK data centre, we deliver exceptional services including dedicated server hosting, colocation, and cloud hosting.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchManchester, United KingdomHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“An independent, Manchester based Data Centre operator, delivering a unique range of data centre, colocation and connectivity solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchCanning Town, United KingdomHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“We are Netwise, one of London's leading independent data centre operators.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchStevenage, United KingdomHQ recorded Nov 6, 202651-20010 contacts →

Exact match

“ServerChoice provides flexible colocation and connectivity services from our world-class data centres, bringing 100% uptime to your business.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchManchester, United KingdomHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Teledata UK Ltd provides high-quality colocation space and data centre solutions within our privately owned, operated and managed Manchester data centre, the ft "Delta House".”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Our Vision: To be the data centre partner our customers trust, the team they rely on, and the company our people are proud to be part of - delivering perfection through expertise…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMilton Keynes, United KingdomHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Host-IT (an nLighten company) have been providing business class colocation and hosting services for 20+ years via ISO27001 accredited data centres in Milton Keynes, Birmingham…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchFarnborough, United KingdomHQ recorded Nov 6, 202611-508 contacts →

Exact match

“With over 25 year pedigree in Data Centre hosting and connectivity and having won some 17 nominations and awards, Datanet is an established leader in providing sustainable racks…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchSheffield, United KingdomHQ recorded Nov 6, 20261-107 contacts →

Exact match

“ABOUT HA HOSTING Home of The Sheffield Data Centre.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-506 contacts →

Exact match

“vXtream is a leading independent UK provider of cloud and data centre services, with seven global points of presence.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-106 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchManchester, United KingdomHQ recorded Nov 6, 202611-504 contacts →

Exact match

“ITILITY is a leading UK-based managed hosting and co-location service provider with a fully-owned purpose built data centre.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchReading Berkshire, United KingdomHQ recorded Nov 6, 202611-504 contacts →

Exact match

“We deliver high quality, bespoke services through a network of 20 facilities across the UK.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 72 telecom colocation providers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 5,354 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Telecom colocation providers based in the United Kingdom at a glance

As of Nov 6, 2026
56.4%Verified-email coverage
131.9Average contacts per company
11-50Median size (employees)
27.8%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
17
11-50
40
51-200
6
201-500
2
501-1,000
1
1,001-5,000
3

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 72 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 “telecom colocation providers” 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 5,354 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 November 6, 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.

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 “telecom colocation providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many telecom colocation providers are there based in the United Kingdom?

RevenueBase identified 72 company matches for telecom colocation providers associated with the United Kingdom as of November 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 telecom colocation providers?

London leads with 20 company records, followed by Manchester (6) and Sheffield (3).

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 5,354 professional contacts with verified work emails tracked across these 72 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 November 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 72 telecom colocation providers based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

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.