Company lists · Data refreshed September 2026

Top 25 5g network installation companies based in the United Kingdom

RevenueBase identified 148 5g network installation companies headquartered in the United Kingdom as of September 2026 and tracks 14,458 professional contacts across them, including 2,888 with verified work emails and 1,019 with mobile numbers. London is the largest hub.

This list covers 5g network installation 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 7, 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 7, 2026 86% judged on-target in blind review
148Companies
14,458Contacts tracked
2,888Verified emails
1,019Mobile numbers
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The 25 largest 5g network installation companies based in the United Kingdom

Ranked by team size
Top 25 of 148 5g network installation companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 7, 2026. RevenueBase Smart Search rates how each company's information relates to 5g network installation 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceReading, United KingdomHQ checked Sep 7, 20261,001-5,0005,121 contacts →

“Three UK is a big network for the little or life-changing connections that make life richer.”

Source: company website · checked Sep 7, 2026
2Partial evidenceLondon, United KingdomHQ checked Sep 7, 2026501-1,0001,319 contacts →

“At Boldyn Networks we unlock the power of an interconnected future.”

Source: company website · checked Sep 7, 2026
3Indirect evidenceWembley, United KingdomHQ checked Sep 7, 20261,001-5,0001,053 contacts →

“Established in 1985 to support the emerging UK cable television market, Kelly Group has diversified to meet the needs of our clients.”

Source: company website · checked Sep 7, 2026
4Indirect evidenceTheale, United KingdomHQ checked Sep 7, 2026201-500300 contacts →

“Welcome to Cornerstone, the leading UK mobile infrastructure services company.”

Source: company website · checked Sep 7, 2026
5Partial evidenceLondon, United KingdomHQ checked Sep 7, 2026501-1,000248 contacts →

“Building on more than seven decades of experience in engineering and technology innovation, Telrad Networks is an award-winning, recognized global leader in wireless…”

Source: company website · checked Sep 7, 2026
6Indirect evidenceTavistock, United KingdomHQ checked Sep 7, 2026201-500151 contacts →

“Beacon Comms is the trading name of Beacon Communication Services Ltd.”

Source: company website · checked Sep 7, 2026
7Partial evidenceLondon, United KingdomHQ checked Sep 7, 202651-200134 contacts →

“The networks of the future are here.”

Source: company website · checked Sep 7, 2026
8Indirect evidenceSnitterfield, United KingdomHQ checked Sep 7, 2026201-500134 contacts →

“CASS (Cabling and Splicing Services) is a services driven telecommunications specialist business.”

Source: company website · checked Sep 7, 2026
9Indirect evidenceStrathclyde Business Park, United KingdomHQ checked Sep 7, 202651-200115 contacts →

“We’re trusted partners in delivering sustainable, long-term infrastructure that powers exceptional mobile connectivity where and when it matters most.”

Source: company website · checked Sep 7, 2026
10Indirect evidenceWest Byfleet, United KingdomHQ checked Sep 7, 202651-20093 contacts →

“Providing high quality, dedicated telecom infrastructure services to Operators across the country.”

Source: company website · checked Sep 7, 2026
11Partial evidenceSheffield, United KingdomHQ checked Sep 7, 2026201-50089 contacts →

“We connect people, technologies and locations, enabling service providers, OEM's and internet service providers to deploy, scale, support and maintain network infrastructure…”

Source: company website · checked Sep 7, 2026
12Partial evidenceIrvine, United KingdomHQ checked Sep 7, 202651-20079 contacts →

“Providing World-class Communication Network and Security Infrastructure Solutions Novo Technologies is dedicated to projects excellence, Novo Technologies undertakes end to end…”

Source: company website · checked Sep 7, 2026
13Partial evidenceWaterbeach, United KingdomHQ checked Sep 7, 202651-20068 contacts →

“Sitec Infrastructure Services is a dynamic, delivery-focussed company providing Mobile infrastructure ADC services and Fixed/Fibre E2E network delivery capabilities.”

Source: company website · checked Sep 7, 2026
14Indirect evidenceLymington, United KingdomHQ checked Sep 7, 202651-20065 contacts →

“Shared Access is an independent wireless telecommunications infrastructure company.”

Source: company website · checked Sep 7, 2026
15Indirect evidenceLondon, United KingdomHQ checked Sep 7, 202651-20057 contacts →

“Radiocoms Systems Limited is a mature communications company of some 50 years and is now the UK’s leading independent communications supplier specialising in the design…”

Source: company website · checked Sep 7, 2026
16Indirect evidenceFarnborough, United KingdomHQ checked Sep 7, 202651-20054 contacts →

“At UK Connect, we specialise in advanced wireless connectivity solutions.”

Source: company website · checked Sep 7, 2026
17Partial evidenceCambridge, United KingdomHQ checked Sep 7, 202651-20053 contacts →

“Ranplan Wireless pioneer software solutions that help perfect the design, optimisation and automation of in-building and urban outdoor wireless networks.”

Source: company website · checked Sep 7, 2026
18Indirect evidenceDerby, United KingdomHQ checked Sep 7, 202651-20051 contacts →

“Fortitude Nicsa Global (FNG) is a leading provider of comprehensive IT services, supporting businesses in over 160 countries with innovative, 24/7 solutions.”

Source: company website · checked Sep 7, 2026
19Indirect evidenceSarratt, United KingdomHQ checked Sep 7, 202651-20044 contacts →

“KMCO Group is the partner company for KMCO Services and KMCO Converged IP Services.”

Source: company website · checked Sep 7, 2026
20Indirect evidenceSidcup, United KingdomHQ checked Sep 7, 202651-20040 contacts →

“KNTC builds infrastructure for telecoms to deliver next generation access and connectivity for voice and data communication services on behalf of consumers and businesses.”

Source: company website · checked Sep 7, 2026
21Indirect evidenceCroydon, United KingdomHQ checked Sep 7, 202651-20033 contacts →

“Founded by Wayne East in 2009, TDA Telecoms has been driving telecom transformation for over a decade.”

Source: company website · checked Sep 7, 2026
22Indirect evidenceEgham, United KingdomHQ checked Sep 7, 202611-5032 contacts →

“Experts in cellular wireless services for mobile operators, neutral host providers and property owners for businesses, commercial property and public buildings.”

Source: company website · checked Sep 7, 2026
23Indirect evidenceLoughborough, United KingdomHQ checked Sep 7, 202611-5024 contacts →

“Telecommunications company delivering full turn key solutions to our clients.”

Source: company website · checked Sep 7, 2026
24Partial evidenceCarnforth, United KingdomHQ checked Sep 7, 202611-5024 contacts →

“LARS Communications can provide all your radio infrastructure requirements from planning and design through to installation and commissioning.”

Source: company website · checked Sep 7, 2026
25Partial evidenceCheltenham, United KingdomHQ checked Sep 7, 202611-5024 contacts →

“Projex Cellular is an experienced, professional team committed to providing innovative products and turnkey project services to Mobile Network Operators, delivering all aspects of…”

Source: company website · checked Sep 7, 2026

Showing 25 of 148 5g network installation companies based in the United Kingdom

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5g network installation companies based in the United Kingdom at a glance

As of Sep 7, 2026
20.0%Verified-email coverage
7.0%Mobile-number coverage
97.7Average contacts per company
11-50Median size (employees)
12.8%Largest-city concentration · London
Sep 7, 2026Page data refreshed

Companies by employee count

1-10
61
11-50
49
51-200
24
201-500
7
501-1,000
3
1,001-5,000
3
10001+
1

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 5g network installation 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 “5g network installation 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 5g network installation 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 5g network installation 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, 2,888 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 7, 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 5g network installation 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 5g network installation companies are there based in the United Kingdom?

RevenueBase identified 148 5g network installation 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?

Three UK, headquartered in Reading, tops this list with the largest team on record.

Which city has the most 5g network installation companies?

London leads with 19 headquartered companies, followed by Reading (7) and Cambridge (5).

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 2,888 verified decision-maker contacts tracked across these 148 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 7, 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.