Company lists · Data refreshed November 2026

Top 25 Telecommunications system integrators based in the United Kingdom

RevenueBase identified 1,358 company matches for telecommunications system integrators associated with the United Kingdom as of November 2026 and tracks 30,674 professional contacts across them, including 10,936 with verified work emails. London is the largest hub.

This list covers company matches for telecommunications system integrators 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
1,358Companies
30,674Contacts tracked
10,936Verified emails
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The 25 largest telecommunications system integrators based in the United Kingdom

Ranked by team size
Top 25 of 1,358 company matches for telecommunications system integrators 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 matchMarlow, United KingdomHQ recorded Nov 6, 20261,001-5,0003,073 contacts →

Exact match

“Softcat is a leading provider of IT infrastructure to corporate and public sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Nov 6, 20261,001-5,0001,631 contacts →

Exact match

“Gamma Communications is a leading provider of technology-based communication solutions across Europe.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchWembley, United KingdomHQ recorded Nov 6, 20261,001-5,0001,204 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchShoreham By Sea, United KingdomHQ recorded Nov 6, 20261,001-5,0001,084 contacts →

Exact match

“Welcome to Focus Group.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchHull, United KingdomHQ recorded Nov 6, 20261,001-5,000969 contacts →

Exact match

“KCOM designs and delivers communications and integration services across the UK.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Nov 6, 2026501-1,000681 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 · Nov 6, 2026 · View company records in RevenueBase
7Exact matchWarrington, United KingdomHQ recorded Nov 6, 2026501-1,000555 contacts →

Exact match

“WHP is one of the UK's leading suppliers of network infrastructure services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Nov 6, 2026201-500457 contacts →

Exact match

“Redstone is now part of RedstoneConnect PLC.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchDerby, United KingdomHQ recorded Nov 6, 2026501-1,000421 contacts →

Exact match

“Comex is an established major strategic partner of choice within the telecommunication sector, across the United Kingdom and Ireland, offering an end to end solution.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchExeter, United KingdomHQ recorded Nov 6, 2026501-1,000389 contacts →

Exact match

“Trinity’s mission statement is simple - to provide high quality design, installation, commissioning and long term after care of Fire Detection, Fire Suppression, Life Safety and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Nov 6, 2026201-500370 contacts →

Exact match

“Maintel is a communications managed services provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchBradford, United KingdomHQ recorded Nov 6, 2026501-1,000352 contacts →

Exact match

“Kings Secure Technologies (KST) is a high-end, enterprise-level systems integrator.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchStevenage, United KingdomHQ recorded Nov 6, 2026501-1,000306 contacts →

Exact match

“Morrison Telecom Services is focused on the design, build and maintenance of telecom infrastructure for key clients in the fixed telecom market.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchMiddlesbrough, United KingdomHQ recorded Nov 6, 2026201-500280 contacts →

Exact match

“Map Group (UK) is one of the leading independent providers of professional technology services to the UK communications sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSt Ives, United KingdomHQ recorded Nov 6, 2026201-500278 contacts →

Exact match

“Magdalene provides comprehensive independent solutions which address the individual needs of our customers throughout the Telecommunications Industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchPortsmouth, United KingdomHQ recorded Nov 6, 2026201-500211 contacts →

Exact match

“Aerial Direct are an award-winning, UK-based, managed communications expert.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBasingstoke, United KingdomHQ recorded Nov 6, 2026501-1,000209 contacts →

Exact match

“Bringing people and technology together since 1965, SCG encompasses a variety of subsidiary businesses that all have a strong entrepreneurial spirit.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchManchester, United KingdomHQ recorded Nov 6, 2026201-500186 contacts →

Exact match

“Nimans is the largest Telecommunications distributor in the UK.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchTavistock, United KingdomHQ recorded Nov 6, 2026201-500164 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBury, United KingdomHQ recorded Nov 6, 202651-200164 contacts →

Exact match

“Our expertise spans consultancy, sales, installation and maintenance services across the communication spectrum, from unified comms systems and hardware, CX solutions and cloud…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchSheffield, United KingdomHQ recorded Nov 6, 2026201-500164 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchChalfont St Peter, United KingdomHQ recorded Nov 6, 202651-200149 contacts →

Exact match

“Frontline Security Solutions is a global electronic security integrator specialising in Access Control, CCTV, Intruder and Intercom systems that protect people, property and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchHitchin, United KingdomHQ recorded Nov 6, 202651-200138 contacts →

Exact match

“Modern Networks helps commercial property owners and managing agents turn buildings into high-performing, tenant-ready assets.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchChippenham, United KingdomHQ recorded Nov 6, 202651-200130 contacts →

Exact match

“Part of the Exponential-e Group, Vysiion provides innovative edge to core IT and telecommunications product and solutions, supported by an agile, proactive, and responsive…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchHampton-in-arden, United KingdomHQ recorded Nov 6, 202651-200122 contacts →

Exact match

“We provide communication solutions and IT business services to businesses, big and small, to help your business grow.”

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

Showing 25 of 1,358 telecommunications system integrators based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 10,936 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Telecommunications system integrators based in the United Kingdom at a glance

As of Nov 6, 2026
35.7%Verified-email coverage
22.6Average contacts per company
11-50Median size (employees)
12.8%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
649
11-50
483
51-200
143
201-500
21
501-1,000
15
1,001-5,000
13
5,001-10,000
1
10001+
2

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 1,358 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 “telecommunications system integrators” 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 10,936 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 “telecommunications system integrators”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many telecommunications system integrators are there based in the United Kingdom?

RevenueBase identified 1,358 company matches for telecommunications system integrators 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?

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

Which city has the most telecommunications system integrators?

London leads with 174 company records, followed by Birmingham (29) and Manchester (25).

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 10,936 professional contacts with verified work emails tracked across these 1,358 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.

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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.