Company lists · Data refreshed September 2026

Top 21 Cabling and connectivity companies based in London, United Kingdom

Name: Cabling and connectivity 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 19, 2026 149 companies tracked

RevenueBase identified 149 cabling and connectivity companies headquartered in London, United Kingdom as of September 2026 and tracks 3,806 professional contacts across them, including 1,487 with verified work emails. London is the largest hub.

This list covers cabling and connectivity companies headquartered in London, 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 19, 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 19, 2026 86% judged on-target in blind review

149Companies

3,806Contacts tracked

1,487Verified emails

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The 21 largest cabling and connectivity companies based in London, United Kingdom

Ranked by team size

Top 21 of 149 cabling and connectivity companies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to cabling and connectivity 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	ONNEC	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	501-1,000	585 contacts →
	Indirect evidence “Onnec is a leading partner for IT Infrastructure design, installation and operational support services.” Source: RevenueBase Database · checked Sep 19, 2026
2	Interoute	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	501-1,000	296 contacts →
	Indirect evidence “Interoute is part of EXA Infrastructure, the largest dedicated digital infrastructure platform connecting Europe and North America, and owns kilometres of fibre network across 34…” Source: RevenueBase Database · checked Sep 19, 2026
3	Vorboss	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	262 contacts →
	Indirect evidence “We’re here to power the ambitions of London enterprises with a dedicated 100Gbps fibre network, managed IT and cybersecurity services.” Source: RevenueBase Database · checked Sep 19, 2026
4	LMG Lmgiq.com	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	153 contacts →
	Indirect evidence “For 40 years, LMG has delivered secure, resilient and proven digital infrastructure solutions across the built environment.” Source: RevenueBase Database · checked Sep 19, 2026
5	Eland Cables	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	148 contacts →
	Indirect evidence “Eland Cables is global cable supplier working closely with consultants, contractors and customers to deliver solutions that combine our cables with technical expertise, tailored…” Source: RevenueBase Database · checked Sep 19, 2026
6	The Cabling Group	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	58 contacts →
	Partial evidence “The Cabling Group provides robust and scalable structured cabling solutions, forming the backbone of modern workplace technology.” Source: RevenueBase Database · checked Sep 19, 2026
7	Electranet UK Limited	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	49 contacts →
	Indirect evidence “Electranet’s mission is to be a preferred partner to the public and private sectors, bringing competitively priced, secure and innovative solutions to the market.” Source: RevenueBase Database · checked Sep 19, 2026
8	VDC Trading	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	39 contacts →
	Indirect evidence “Established in 1987 and headquartered in London, VDC Trading is a leading supplier of analogue and digital audio, video and fibre cables to the professional and domestic user.” Source: RevenueBase Database · checked Sep 19, 2026
9	XLCC	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	36 contacts →
	Indirect evidence “XLCC has relaunched and rebranded as Aquora, a Scotland based cable installation and manufacturing business to address the critical demand for high-voltage cable supply in the UK…” Source: RevenueBase Database · checked Sep 19, 2026
10	Dacc Europe Limited	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	31 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
11	Megnet Limited	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	28 contacts →
	Indirect evidence “We are specialist suppliers of compatible fibre optic transceivers and related networking solutions products since 2003.” Source: RevenueBase Database · checked Sep 19, 2026
12	Live Innovative Solutions	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	27 contacts →
	Partial evidence “Live Innovative Solutions (LIS) provide high-performance structured cabling, smart building AV and WIFI solutions, active networks, security systems and technology sourcing and…” Source: RevenueBase Database · checked Sep 19, 2026
13	Rellium	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	26 contacts →
	Partial evidence “Rellium provides general contractors, turnkey ICT companies and companies expanding into ICT with IT support focusing on structured cabling and IT infrastructure services.” Source: RevenueBase Database · checked Sep 19, 2026
14	Infrastructure Design Solutions	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	24 contacts →
	Partial evidence “IDS is a global ICT and security infrastructure design consultancy, specialized in structured cabling design and physical security engineering solutions that meet the highest…” Source: RevenueBase Database · checked Sep 19, 2026
15	Mills LTD	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	23 contacts →
	Indirect evidence “Mills is the largest independently owned family run business in the telecommunications sector and provides the full range of fibre infrastructure products, tools and equipment…” Source: RevenueBase Database · checked Sep 19, 2026
16	Neutrality Managed Services	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	18 contacts →
	Partial evidence “Neutrality are a service provider, delivering managed infrastructure services and hybrid connectivity solutions to our global client base.” Source: RevenueBase Database · checked Sep 19, 2026
17	Project Vision LTD	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	16 contacts →
	Indirect evidence “Project Vision is a multi-award-winning technology services provider specialising in comprehensive IT and business-enabling solutions.” Source: RevenueBase Database · checked Sep 19, 2026
18	Prestige Optical LTD	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	16 contacts →
	Partial evidence “Prestige Optical Ltd is a nation-wide leading provider of high-quality connectivity solutions, specialising in advanced infrastructure and Wifi connectivity.” Source: RevenueBase Database · checked Sep 19, 2026
19	IP River Limited	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	14 contacts →
	Partial evidence “IP River is a UK wholesale ISP and network operator with global reach, the access layer behind the partners who sell connectivity.” Source: RevenueBase Database · checked Sep 19, 2026
20	ART Nett LTD	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	14 contacts →
	Partial evidence “Art Nett Ltd are layer-1 connectivity specialists working to provide endpoint connectivity via copper, fibre optic and radio technologies.” Source: RevenueBase Database · checked Sep 19, 2026
21	Tratos	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	501-1,000	10 contacts →
	Indirect evidence “Innovative cable manufacturer Tratos, is a leader in Electrical, Electronic and Fibre Optic cable technology.” Source: RevenueBase Database · checked Sep 19, 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: cabling and connectivity companies. 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 cabling and connectivity companies.
Partial evidence: Its own public description names part of cabling and connectivity companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cabling and connectivity companies. 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 21 of 149 cabling and connectivity companies based in London, United Kingdom

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Cabling and connectivity companies based in London, United Kingdom at a glance

As of Sep 19, 2026

39.1%Verified-email coverage

25.5Average contacts per company

11-50Median size (employees)

100.0%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 149 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 cabling and connectivity 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 London, United Kingdom whose own description of what they do matches “cabling and connectivity 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 cabling and connectivity 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 cabling and connectivity companies, and records with no verified work email. Companies headquartered outside London 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, 1,487 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 19, 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.

Cabling and connectivity companies by metro in the United Kingdom

Cabling and connectivity companies in London149
Cabling and connectivity companies in Birmingham28
Cabling and connectivity companies in Manchester28

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 cabling and connectivity 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 cabling and connectivity companies are there based in London, United Kingdom?

RevenueBase identified 149 cabling and connectivity companies headquartered in London, 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?

ONNEC, headquartered in London, tops this list with the largest team on record.

Which city has the most cabling and connectivity companies?

London leads with 149 headquartered companies, followed by Birmingham (28) and Manchester (28).

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 1,487 verified decision-maker contacts tracked across these 149 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 19, 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.