Company lists · Data refreshed September 2026

Top 22 Enterprise network infrastructure companies based in London, United Kingdom

Name: Enterprise network infrastructure companies 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 84 companies tracked

RevenueBase identified 84 company matches for enterprise network infrastructure companies associated with London, United Kingdom as of September 2026 and tracks 10,779 professional contacts across them, including 5,016 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for enterprise network infrastructure companies associated with London, 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 September 28, 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 Sep 28, 2026 How this list was built

84Companies

10,779Contacts tracked

5,016Verified emails

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The 22 largest enterprise network infrastructure companies based in London, United Kingdom

Ranked by team size

Top 22 of 84 company matches for enterprise network infrastructure companies based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Colt Technology Services	Exact match	London, United KingdomHQ recorded Sep 28, 2026	5,001-10,000	6,233 contacts →
	Exact match “Colt Technology Services (Colt) is a global digital infrastructure company which creates extraordinary connections to help businesses succeed.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Exponential-E	Exact match	London, United KingdomHQ recorded Sep 28, 2026	501-1,000	667 contacts →
	Exact match “Innovation is at the core of Exponential-e, and has been since our inception in 2002.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Redstone Converged Solutions	Exact match	London, United KingdomHQ recorded Sep 28, 2026	201-500	453 contacts →
	Exact match “Redstone is now part of RedstoneConnect PLC.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	EXA Infrastructure	Exact match	London, United KingdomHQ recorded Sep 28, 2026	201-500	416 contacts →
	Exact match “EXA Infrastructure is an award-winning portfolio company of I Squared Capital and one of the largest dedicated digital infrastructure platforms throughout Europe, connecting North…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Eunetworks	Exact match	London, United KingdomHQ recorded Sep 28, 2026	201-500	362 contacts →
	Exact match “euNetworks (@euNetworks) is a European provider of bandwidth infrastructure services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Vorboss	Exact match	London, United KingdomHQ recorded Sep 28, 2026	201-500	262 contacts →
	Exact match “We’re here to power the ambitions of London enterprises with a dedicated 100Gbps fibre network, managed IT and cybersecurity services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Block Solutions	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	141 contacts →
	Exact match “Block was created for one reason: to empower people and inspire change through technology.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	D-Link Europe	Exact match	London, United KingdomHQ recorded Sep 28, 2026	1,001-5,000	46 contacts →
	Exact match “D-Link helps you connect to more of everything with our innovative approach to computer networking.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Backbone Connect	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	45 contacts →
	Exact match “Backbone Connect is a dynamic technology firm specialising in solving the unique technological challenges of commercial real estate.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Virtual1	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	44 contacts →
	Exact match “At the UK’s most advanced network, we harness innovation, automation and simplicity to provide outstanding wholesale connectivity and cloud services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Borwood	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	43 contacts →
	Exact match “At Borwood, we believe that seamless, always-on communication is the foundation of global business success.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Dacc Europe Limited	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	31 contacts →
	Exact match “DACC Europe is a leading structured cable and network infrastructure provider established in 1996 in Docklands London, enjoying year on year growth and fully manufacturer…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Neutrality Managed Services	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	18 contacts →
	Exact match “Neutrality are a service provider, delivering managed infrastructure services and hybrid connectivity solutions to our global client base.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Prestige Optical LTD	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	16 contacts →
	Exact match “Prestige Optical Ltd is a nation-wide leading provider of high-quality connectivity solutions, specialising in advanced infrastructure and Wifi connectivity.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	GTP Works	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	15 contacts →
	Exact match “GTP Works strives to be the trusted connection to the networked works and is focused on delivering technology that enhances customer experience.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Optinet U.K. Limited	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	14 contacts →
	Exact match “Transforming incredible Network Technologies into amazing Business Solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Airx Your Global Network Partner	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	11 contacts →
	Exact match “AIRX is a leading "Global Network Integrator" offering Network Connectivity and ICT solutions to leading Telecommunications, SD-WAN companies, Technology companies, Managed…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Starfish	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	10 contacts →
	Exact match “Mission: The mission of Starfish is to develop technical expertise and share it openly for the benefit of our community.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	CSL Integration LTD	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	8 contacts →
	Exact match “Who we are - Established in 2004 CSL Integration is a technology solutions Company providing tailored voice, data and video services that add value and improve the way Companies…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Enable Network Services	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	5 contacts →
	Exact match “A team of highly trained network specialists dedicated to engineering the best solutions with state of the art technology.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Coreconnect	Exact match	London, United KingdomHQ recorded Sep 28, 2026	1-10	4 contacts →
	Exact match “Core Connect - Delivering Instant Connectivity Inifi are helping office buildings get instant connectivity.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Datacat Network Solutions	Exact match	London, United KingdomHQ recorded Sep 28, 2026	1-10	4 contacts →
	Exact match “Datacat install B2B network cabling in commercial premises throughout the Greater London area and the SE.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “enterprise network infrastructure companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 22 of 84 enterprise network infrastructure companies based in London, United Kingdom

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Enterprise network infrastructure companies based in London, United Kingdom at a glance

As of Sep 28, 2026

46.5%Verified-email coverage

128.3Average contacts per company

11-50Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 84 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 London, United Kingdom whose business descriptions match “enterprise network infrastructure companies” 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 5,016 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 September 28, 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 “enterprise network infrastructure companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many enterprise network infrastructure companies are there based in London, United Kingdom?

RevenueBase identified 84 company matches for enterprise network infrastructure companies associated with London, United Kingdom as of September 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?

Colt Technology Services tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United Kingdom has the most enterprise network infrastructure companies?

London leads the United Kingdom with 84 company records, followed by Birmingham (11) and Manchester (11).

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 5,016 professional contacts with verified work emails tracked across these 84 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 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 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.