Company lists · Data refreshed September 2026

Top 25 Fiber optic infrastructure contractors based in the United Kingdom

Name: Fiber optic 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 16, 2026 738 companies tracked

RevenueBase identified 738 fiber optic infrastructure contractors headquartered in the United Kingdom as of September 2026 and tracks 10,529 professional contacts across them, including 3,211 with verified work emails. London is the largest hub.

This list covers fiber optic infrastructure contractors 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 16, 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 16, 2026 86% judged on-target in blind review

738Companies

10,529Contacts tracked

3,211Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest fiber optic infrastructure contractors based in the United Kingdom

Ranked by team size

Top 25 of 738 fiber optic infrastructure contractors based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to fiber optic infrastructure contractors: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Kelly Group	Indirect evidence	Wembley, United KingdomHQ checked Sep 16, 2026	1,001-5,000	1,053 contacts →
	Indirect evidence “Established in 1985 to support the emerging UK cable television market, Kelly Group has diversified to meet the needs of our clients.” Source: RevenueBase Database · checked Sep 16, 2026
2	WHP Telecoms Limited	Partial evidence	Warrington, United KingdomHQ checked Sep 16, 2026	501-1,000	519 contacts →
	Partial evidence “WHP is one of the UK's leading suppliers of network infrastructure services.” Source: RevenueBase Database · checked Sep 16, 2026
3	Indigo	Partial evidence	Magor, United KingdomHQ checked Sep 16, 2026	201-500	470 contacts →
	Partial evidence “Indigo engineers a digital future by designing, deploying, and supporting digital infrastructure for network owners and operators.” Source: RevenueBase Database · checked Sep 16, 2026
4	Global Marine	Indirect evidence	Chelmsford, United KingdomHQ checked Sep 16, 2026	501-1,000	339 contacts →
	Indirect evidence “Global Marine is part of the Global Marine Group, and is a market leader in subsea cable installation and maintenance solutions to the telecoms and oil & gas sectors.” Source: RevenueBase Database · checked Sep 16, 2026
5	Emtelle	Indirect evidence	Hawick, United KingdomHQ checked Sep 16, 2026	501-1,000	330 contacts →
	Indirect evidence “With 40 years of experience, Emtelle's competitive strength lies in strong technological capabilities, in relentless research and development, and in people whose dedication and…” Source: RevenueBase Database · checked Sep 16, 2026
6	Magdalene	Indirect evidence	St Ives, United KingdomHQ checked Sep 16, 2026	201-500	273 contacts →
	Indirect evidence “Magdalene provides comprehensive independent solutions which address the individual needs of our customers throughout the Telecommunications Industry.” Source: RevenueBase Database · checked Sep 16, 2026
7	Viberoptix	Indirect evidence	Coalisland, United KingdomHQ checked Sep 16, 2026	501-1,000	158 contacts →
	Indirect evidence “Viberoptix delivers frontline services to fibre networks providers across the UK and Ireland.” Source: RevenueBase Database · checked Sep 16, 2026
8	Beacon Comms	Indirect evidence	Tavistock, United KingdomHQ checked Sep 16, 2026	201-500	151 contacts →
	Indirect evidence “Beacon Comms is the trading name of Beacon Communication Services Ltd.” Source: RevenueBase Database · checked Sep 16, 2026
9	Nano Fibre UK Limited	Indirect evidence	Bradford, United KingdomHQ checked Sep 16, 2026	201-500	138 contacts →
	Indirect evidence “Welcome to Nano Fibre UK!” Source: RevenueBase Database · checked Sep 16, 2026
10	Cass Worldwide	Indirect evidence	Snitterfield, United KingdomHQ checked Sep 16, 2026	201-500	134 contacts →
	Indirect evidence “CASS (Cabling and Splicing Services) is a services driven telecommunications specialist business.” Source: RevenueBase Database · checked Sep 16, 2026
11	Freedom Fibre	Indirect evidence	Irlam, United KingdomHQ checked Sep 16, 2026	51-200	124 contacts →
	Indirect evidence “As a UK fibre network provider, we believe that high-speed broadband should be available for everyone.” Source: RevenueBase Database · checked Sep 16, 2026
12	Waldon Telecom	Partial evidence	West Byfleet, United KingdomHQ checked Sep 16, 2026	51-200	93 contacts →
	Partial evidence “Providing high quality, dedicated telecom infrastructure services to Operators across the country.” Source: RevenueBase Database · checked Sep 16, 2026
13	Linbrooke Services LTD	Partial evidence	Sheffield, United KingdomHQ checked Sep 16, 2026	201-500	89 contacts →
	Partial evidence “We connect people, technologies and locations, enabling service providers, OEM's and internet service providers to deploy, scale, support and maintain network infrastructure…” Source: RevenueBase Database · checked Sep 16, 2026
14	OCU Opals	Indirect evidence	Peterborough, United KingdomHQ checked Sep 16, 2026	201-500	87 contacts →
	Indirect evidence “In August 2022, Opals Group was acquired by OCU Group.” Source: RevenueBase Database · checked Sep 16, 2026
15	Rapid Response Telecoms LTD	Indirect evidence	Barnsley, United KingdomHQ checked Sep 16, 2026	201-500	79 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 16, 2026
16	Novo Technologies Limited	Partial evidence	Irvine, United KingdomHQ checked Sep 16, 2026	51-200	79 contacts →
	Partial evidence “Providing World-class Communication Network and Security Infrastructure Solutions Novo Technologies is dedicated to projects excellence, Novo Technologies undertakes end to end…” Source: RevenueBase Database · checked Sep 16, 2026
17	ISG Tech	Indirect evidence	Nelson, United KingdomHQ checked Sep 16, 2026	201-500	76 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 16, 2026
18	Installation Technology Limited	Indirect evidence	Reading, United KingdomHQ checked Sep 16, 2026	51-200	74 contacts →
	Indirect evidence “Installation Technology has over thirty years of experience in providing technical solutions in advanced communication systems.” Source: RevenueBase Database · checked Sep 16, 2026
19	Global Marine Group	Indirect evidence	Chelmsford, United KingdomHQ checked Sep 16, 2026	51-200	70 contacts →
	Indirect evidence “The Global Marine Group is a leading independent provider of submarine cable solutions offering a broad range of services including consultancy, installation and maintenance…” Source: RevenueBase Database · checked Sep 16, 2026
20	Lightning Fibre	Indirect evidence	Polegate, United KingdomHQ checked Sep 16, 2026	51-200	68 contacts →
	Indirect evidence “We're Lightning Fibre, a multi-award-winning, community-focused Full Fibre Hyperfast network operator and internet service provider based in the South East of England.” Source: RevenueBase Database · checked Sep 16, 2026
21	Sitec Infrastructure Services LTD	Partial evidence	Waterbeach, United KingdomHQ checked Sep 16, 2026	51-200	68 contacts →
	Partial evidence “Sitec Infrastructure Services is a dynamic, delivery-focussed company providing Mobile infrastructure ADC services and Fixed/Fibre E2E network delivery capabilities.” Source: RevenueBase Database · checked Sep 16, 2026
22	CCN Communications	Partial evidence	Lee On The Solent, United KingdomHQ checked Sep 16, 2026	201-500	65 contacts →
	Partial evidence “Building the fibre infrastructure to light up and digitise, towns, villages and cities across the South; enabling emerging technology to thrive within the Fourth Industrial…” Source: RevenueBase Database · checked Sep 16, 2026
23	VEA Telecoms	Indirect evidence	Bracknell, United KingdomHQ checked Sep 16, 2026	51-200	63 contacts →
	Indirect evidence “VEA Telecoms is a trading name of Vea Group LTD \| Your Trusted Network Partner We deliver fast, reliable, and full turnkey telecom solutions to UK network providers.” Source: RevenueBase Database · checked Sep 16, 2026
24	Kcom Wholesale	Indirect evidence	Hull, United KingdomHQ checked Sep 16, 2026	501-1,000	61 contacts →
	Indirect evidence “KCOM has been a driver of innovation in the telecoms industry for more than a century; pushing the boundaries and pioneering new technology from our earliest days as a local phone…” Source: RevenueBase Database · checked Sep 16, 2026
25	Splicegroup	Indirect evidence	Drighlington, United KingdomHQ checked Sep 16, 2026	51-200	59 contacts →
	Indirect evidence “We are a leading provider of Fibre Management Products and Services.” Source: RevenueBase Database · checked Sep 16, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: fiber optic infrastructure contractors. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names fiber optic infrastructure contractors.
Partial evidence: Its own public description names part of fiber optic infrastructure contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name fiber optic infrastructure contractors. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 738 fiber optic infrastructure contractors based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 3,211 reachable decision-makers.

Free signup · no credit card

View the full list →

Fiber optic infrastructure contractors based in the United Kingdom at a glance

As of Sep 16, 2026

30.5%Verified-email coverage

14.3Average contacts per company

11-50Median size (employees)

10.6%Largest-city concentration · London

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

345

11-50

255

51-200

101

201-500

501-1,000

1,001-5,000

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 738 companies.

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 fiber optic infrastructure contractors, 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 “fiber optic infrastructure contractors”. 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 fiber optic infrastructure contractors), 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 fiber optic infrastructure contractors, 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, 3,211 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 16, 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.

Fiber optic infrastructure contractors by metro

Fiber optic infrastructure contractors in London78

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 fiber optic infrastructure contractors, 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 fiber optic infrastructure contractors are there based in the United Kingdom?

RevenueBase identified 738 fiber optic infrastructure contractors 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?

Kelly Group, headquartered in Wembley, tops this list with the largest team on record.

Which city has the most fiber optic infrastructure contractors?

London leads with 78 headquartered companies, followed by Birmingham (17) and Bristol (15).

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 3,211 verified decision-maker contacts tracked across these 738 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 16, 2026.

Ready to reach these companies? Verified emails and direct dials for all 738 fiber optic infrastructure contractors based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Fiber optic infrastructure contractors by geography

Browse the directory

Browse: Companies home · All United Kingdom lists · All Fiber optic infrastructure contractors lists · New 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 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.