Company lists · Data refreshed September 2026

Top 25 Network infrastructure contractors based in the United Kingdom

Name: Network infrastructure contractors based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 765 companies tracked

RevenueBase identified 765 company matches for network infrastructure contractors associated with the United Kingdom as of September 2026 and tracks 10,997 professional contacts across them, including 3,809 with verified work emails. London is the largest hub.

This list covers company matches for network infrastructure contractors 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 September 17, 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 17, 2026 How this list was built

765Companies

10,997Contacts tracked

3,809Verified emails

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The 25 largest network infrastructure contractors based in the United Kingdom

Ranked by team size

Top 25 of 765 company matches for network infrastructure contractors based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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	Kelly Group	Exact match	Wembley, United KingdomHQ recorded Sep 17, 2026	1,001-5,000	1,053 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 · Sep 17, 2026 · View company records in RevenueBase
2	WHP Telecoms Limited	Exact match	Warrington, United KingdomHQ recorded Sep 17, 2026	501-1,000	519 contacts →
	Exact match “WHP is one of the UK's leading suppliers of network infrastructure services.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Indigo	Exact match	Magor, United KingdomHQ recorded Sep 17, 2026	201-500	470 contacts →
	Exact match “Indigo engineers a digital future by designing, deploying, and supporting digital infrastructure for network owners and operators.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Morrison Telecom Services	Exact match	Stevenage, United KingdomHQ recorded Sep 17, 2026	501-1,000	339 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 · Sep 17, 2026 · View company records in RevenueBase
5	Magdalene	Exact match	St Ives, United KingdomHQ recorded Sep 17, 2026	201-500	273 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 · Sep 17, 2026 · View company records in RevenueBase
6	John Henry Group	Exact match	Cambridge, United KingdomHQ recorded Sep 17, 2026	201-500	223 contacts →
	Exact match “Founded in 1985, John Henry Group is a leading, national independent integrated services provider providing best in class expertise, enabling our partner clients to deliver…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Viberoptix	Exact match	Coalisland, United KingdomHQ recorded Sep 17, 2026	501-1,000	158 contacts →
	Exact match “Viberoptix delivers frontline services to fibre networks providers across the UK and Ireland.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Beacon Comms	Exact match	Tavistock, United KingdomHQ recorded Sep 17, 2026	201-500	151 contacts →
	Exact match “Beacon Comms is the trading name of Beacon Communication Services Ltd.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Fulcrum Group	Exact match	Sheffield, United KingdomHQ recorded Sep 17, 2026	201-500	145 contacts →
	Exact match “Fulcrum is a leading ICP (Independent Connection Provider) designing and building electricity, gas and water connections and infrastructure for all sizes of residential…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Block Solutions	Exact match	London, United KingdomHQ recorded Sep 17, 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 17, 2026 · View company records in RevenueBase
11	Freshwave	Exact match	London, United KingdomHQ recorded Sep 17, 2026	51-200	134 contacts →
	Exact match “The networks of the future are here.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Cass Worldwide	Exact match	Snitterfield, United KingdomHQ recorded Sep 17, 2026	201-500	134 contacts →
	Exact match “CASS (Cabling and Splicing Services) is a services driven telecommunications specialist business.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Doocey Group	Exact match	Tipton, United KingdomHQ recorded Sep 17, 2026	201-500	105 contacts →
	Exact match “Doocey Group Utility Infrastructure Contractor operating nationally in the construction Industry.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Waldon Telecom	Exact match	West Byfleet, United KingdomHQ recorded Sep 17, 2026	51-200	93 contacts →
	Exact match “Providing high quality, dedicated telecom infrastructure services to Operators across the country.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Linbrooke Services LTD	Exact match	Sheffield, United KingdomHQ recorded Sep 17, 2026	201-500	89 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 · Sep 17, 2026 · View company records in RevenueBase
16	OCU Opals	Exact match	Peterborough, United KingdomHQ recorded Sep 17, 2026	201-500	87 contacts →
	Exact match “In August 2022, Opals Group was acquired by OCU Group.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Switchshop Limited	Exact match	Kimpton, United KingdomHQ recorded Sep 17, 2026	51-200	79 contacts →
	Exact match “Switchshop is a specialist designer, installer and provider of IT network equipment solutions and one of the UK's leading resellers of networking hardware.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Rapid Response Telecoms LTD	Exact match	Barnsley, United KingdomHQ recorded Sep 17, 2026	201-500	79 contacts →
	Exact match “As a family run business for over 30 years, here at Rapid Response Telecoms we take great pride in our services being a tier 1 supplier to many prestigious Alt Nets.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Novo Technologies Limited	Exact match	Irvine, United KingdomHQ recorded Sep 17, 2026	51-200	79 contacts →
	Exact match “Providing World-class Communication Network and Security Infrastructure Solutions Novo Technologies is dedicated to projects excellence, Novo Technologies undertakes end to end…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	ISG Tech	Exact match	Nelson, United KingdomHQ recorded Sep 17, 2026	201-500	76 contacts →
	Exact match “ISG Tech is a market-leading provider of services for the design, deployment and management of enterprise network connectivity with over 35 years of experience.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Installation Technology Limited	Exact match	Reading, United KingdomHQ recorded Sep 17, 2026	51-200	74 contacts →
	Exact match “Installation Technology has over thirty years of experience in providing technical solutions in advanced communication systems.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Sitec Infrastructure Services LTD	Exact match	Waterbeach, United KingdomHQ recorded Sep 17, 2026	51-200	68 contacts →
	Exact match “Sitec Infrastructure Services is a dynamic, delivery-focussed company providing Mobile infrastructure ADC services and Fixed/Fibre E2E network delivery capabilities.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	GCU UK LTD	Exact match	Bellshill, United KingdomHQ recorded Sep 17, 2026	51-200	67 contacts →
	Exact match “Utilities, Telecoms & Civils Infrastructure Delivery \| Safe, Reliable & Scalable Project Delivery Across the UK GCU (UK) Ltd is a specialist contractor delivering utilities…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	AMARO	Exact match	London, United KingdomHQ recorded Sep 17, 2026	51-200	64 contacts →
	Exact match “A Network Rail Principal Contractor and partner of choice for some of the biggest names in rail, we deliver integrated signalling, power, and telecoms solutions throughout the UK…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Leviton Network Solutions Europe	Exact match	Glenrothes, United KingdomHQ recorded Sep 17, 2026	201-500	63 contacts →
	Exact match “Leviton Network Solutions Europe supports commercial and residential networks with high-performance network infrastructure.” Recorded in the RevenueBase company graph · Sep 17, 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 “network infrastructure contractors”. 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 25 of 765 network infrastructure contractors based in the United Kingdom

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Network infrastructure contractors based in the United Kingdom at a glance

As of Sep 17, 2026

34.6%Verified-email coverage

14.4Average contacts per company

11-50Median size (employees)

10.1%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

355

11-50

257

51-200

111

201-500

501-1,000

1,001-5,000

10001+

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 765 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 “network infrastructure contractors” 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 3,809 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 17, 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 “network infrastructure contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many network infrastructure contractors are there based in the United Kingdom?

RevenueBase identified 765 company matches for network infrastructure contractors associated with the 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?

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

Which city has the most network infrastructure contractors?

London leads with 77 company records, followed by Birmingham (15) and Manchester (15).

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 3,809 professional contacts with verified work emails tracked across these 765 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 17, 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.