Company lists · Data refreshed September 2026

Top 23 Electrical contractors for telecom based in London, United Kingdom

Name: Electrical contractors for telecom based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 224 companies tracked

RevenueBase identified 224 electrical contractors for telecom headquartered in London, United Kingdom as of September 2026 and tracks 2,149 professional contacts across them, including 243 with verified work emails. London is the largest hub.

This list covers electrical contractors for telecom 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 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

224Companies

2,149Contacts tracked

243Verified emails

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The 23 largest electrical contractors for telecom based in London, United Kingdom

Ranked by team size

Top 23 of 224 electrical contractors for telecom based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to electrical contractors for telecom: 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	J Brand LTD	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	n/a	1,245 contacts →
	Partial evidence “Originally set up in 1933 by Joseph Brand as an electrical contracting and repair business in Margaret Street W1, the company today still operates today with the same guiding…” Source: RevenueBase Database · checked Sep 16, 2026
2	Dacc Europe Limited	Indirect evidence	London, United KingdomHQ checked Sep 16, 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 16, 2026
3	ARC Electrical	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	1-10	30 contacts →
	Strong evidence “Electrical Contractors and Wholesalers based in Central London and Essex.” Source: RevenueBase Database · checked Sep 16, 2026
4	Infrastructure Design Solutions	Indirect evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	24 contacts →
	Indirect 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 16, 2026
5	Niblock Electrical Services	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	22 contacts →
	Strong evidence “Niblock Electrical Services are a M&E contractor based in South East London.” Source: RevenueBase Database · checked Sep 16, 2026
6	Dennis Johns Service Group	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	51-200	20 contacts →
	Partial evidence “The Dennis Johns Service Group is a forward thinking group of companies providing, Electrical, CCTV and Access Control, installation and maintenance contracting services.” Source: RevenueBase Database · checked Sep 16, 2026
7	Cole Group	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	12 contacts →
	Partial evidence “At COLE Group, we specialize in delivering outstanding electrical solutions for both new build and refurbishment projects.” Source: RevenueBase Database · checked Sep 16, 2026
8	Rederic LTD	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	12 contacts →
	Partial evidence “Here at Rederic, we leverage our wealth of industry knowledge and expertise to provide efficient, personalised solutions for all mechanical & electrical, audiovisual, data…” Source: RevenueBase Database · checked Sep 16, 2026
9	SPL Construct LTD	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	12 contacts →
	Strong evidence “As fully qualified, time served electrical contractors, we have a wealth of knowledge in the electrical industry, predominantly carrying out a wide range of services from design…” Source: RevenueBase Database · checked Sep 16, 2026
10	TNS Electrical Contractors LTD	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	11 contacts →
	Strong evidence “We are TNS Electrical Contractors Ltd and based in East London with over 15 years of experience in the electrical industry.” Source: RevenueBase Database · checked Sep 16, 2026
11	NM Cabling Solutions	Indirect evidence	London, United KingdomHQ checked Sep 16, 2026	1-10	9 contacts →
	Indirect evidence “NM Cabling are a leading data cabling installer assisting IT, Technology, Value Added Re-sellers and Telephone Systems Companies in the London, South and surrounding areas with a…” Source: RevenueBase Database · checked Sep 16, 2026
12	JSJ Smart Homes	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	1-10	9 contacts →
	Strong evidence “JSJ Smart Homes was formed as a specialised contractor in the field of domestic installations, covering all aspects of electrical installs, such as home automation and data…” Source: RevenueBase Database · checked Sep 16, 2026
13	Tyford	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	8 contacts →
	Partial evidence “Tyford is an M&E contractor with over 20 years experience.” Source: RevenueBase Database · checked Sep 16, 2026
14	Propertyrun Electrical Contractors	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	7 contacts →
	Strong evidence “PropertyRun Contracts Ltd are approved electrical contractors, that provide a full range of services all over London.” Source: RevenueBase Database · checked Sep 16, 2026
15	R P Bray Electrical Contractors	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	51-200	6 contacts →
	Partial evidence “R P Bray carry out electrical installation works to domestic, commercial and industrial projects, complete with design and testing facilities, specializing in the hotel, leisure…” Source: RevenueBase Database · checked Sep 16, 2026
16	Total Electric Solutions LTD	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	6 contacts →
	Partial evidence “Established in 2006, Total Electric Solutions Ltd provides a complete electrical package from the design & tendering process through to the final installation & after care.” Source: RevenueBase Database · checked Sep 16, 2026
17	Harrison HOW LTD	Indirect evidence	London, United KingdomHQ checked Sep 16, 2026	1-10	6 contacts →
	Indirect evidence “Harrison How Limited are situated in the heart of London and have been serving clients since 1939.” Source: RevenueBase Database · checked Sep 16, 2026
18	Vezo Energy	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	5 contacts →
	Partial evidence “Vezo Energy delivers professional electrical, construction and facilities services for offices, leisure facilities, hospitals, property managers, commercial properties and luxury…” Source: RevenueBase Database · checked Sep 16, 2026
19	Titan Civils LTD	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	1-10	5 contacts →
	Partial evidence “What we do: Telecommunications builds: MicroCells, SmallCells, Meter boxes, Cabinets Pre Installation services: Trenching, Ducting, Manholes, Water, Sewerage Streetworks: Meter…” Source: RevenueBase Database · checked Sep 16, 2026
20	SES Electrical Contractors UK LTD	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	1-10	5 contacts →
	Partial evidence “Fire Safety & Electrical Compliance for London Buildings SES designs, installs, tests and maintains fire alarm, emergency lighting and life-safety systems, alongside electrical…” Source: RevenueBase Database · checked Sep 16, 2026
21	NZ Solutions LTD	Indirect evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	4 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
22	Datacat Network Solutions	Indirect evidence	London, United KingdomHQ checked Sep 16, 2026	1-10	4 contacts →
	Indirect evidence “Datacat install B2B network cabling in commercial premises throughout the Greater London area and the SE.” Source: RevenueBase Database · checked Sep 16, 2026
23	Bextec Electrical Services LTD	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	1-10	4 contacts →
	Partial evidence “Bextec Electrical are a London based company operating in the commercial and residential sectors of the electrical industry.” 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: electrical contractors for telecom. 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 electrical contractors for telecom.
Partial evidence: Its own public description names part of electrical contractors for telecom, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrical contractors for telecom. 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 23 of 224 electrical contractors for telecom based in London, United Kingdom

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Electrical contractors for telecom based in London, United Kingdom at a glance

As of Sep 16, 2026

11.3%Verified-email coverage

9.6Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · London

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

150

11-50

51-200

201-500

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 224 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 electrical contractors for telecom, 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 “electrical contractors for telecom”. 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 electrical contractors for telecom), 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 electrical contractors for telecom, 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, 243 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.

Electrical contractors for telecom by metro in the United Kingdom

Electrical contractors for telecom in London224
Electrical contractors for telecom in Manchester46
Electrical contractors for telecom in Birmingham45
Electrical contractors for telecom in Nottingham43
Electrical contractors for telecom in Glasgow41
Electrical contractors for telecom in Bristol38
Electrical contractors for telecom in Southampton34
Electrical contractors for telecom in Leicester31
Electrical contractors for telecom in Leeds30
Electrical contractors for telecom in Sheffield29
Electrical contractors for telecom in Liverpool27
Electrical contractors for telecom in Northampton27

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 electrical contractors for telecom, 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 electrical contractors for telecom are there based in London, United Kingdom?

RevenueBase identified 224 electrical contractors for telecom 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?

J Brand LTD, headquartered in London, tops this list with the largest team on record.

Which city has the most electrical contractors for telecom?

London leads with 224 headquartered companies, followed by Manchester (46) and Birmingham (45).

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 243 verified decision-maker contacts tracked across these 224 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.

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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.