Company lists · Data refreshed September 2026

Top 24 Electrical system suppliers based in London, United Kingdom

Name: Electrical system suppliers 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 190 companies tracked

RevenueBase identified 190 electrical system suppliers headquartered in London, United Kingdom as of September 2026 and tracks 836 professional contacts across them, including 190 with verified work emails. London is the largest hub.

This list covers electrical system suppliers 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

190Companies

836Contacts tracked

190Verified emails

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

The 24 largest electrical system suppliers based in London, United Kingdom

Ranked by team size

Top 24 of 190 electrical system suppliers 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 electrical system suppliers: 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	Grant Walker Engineering	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	81 contacts →
	Strong evidence “Grant Walker Engineering specialise in the complete installation of Electrical and Mechanical systems across all work sectors including quality office developments, commercial and…” Source: RevenueBase Database · checked Sep 19, 2026
2	National Lighting	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	42 contacts →
	Partial evidence “National Lighting was founded in 1993 and is committed to offering unbeatable trade prices for all your lighting and electrical needs.” Source: RevenueBase Database · checked Sep 19, 2026
3	ARC Electrical	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	30 contacts →
	Partial evidence “Electrical Contractors and Wholesalers based in Central London and Essex.” Source: RevenueBase Database · checked Sep 19, 2026
4	A&a Electrical LTD	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	17 contacts →
	Indirect evidence “Innovation, Integrity, Quality and Service is in our DNA.” Source: RevenueBase Database · checked Sep 19, 2026
5	Capital Electrical Wholesalers Limited	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	13 contacts →
	Partial evidence “CAPITAL ELECTRICAL WHOLESALERS LIMITED (Dunstable)is a wholesale company based out of 5 Brittany Court, High Street South, Dunstable, Beds, LU6 3HR United Kingdom.” Source: RevenueBase Database · checked Sep 19, 2026
6	Ryness Electrical Supplies	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	13 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
7	Cole Group	Partial evidence	London, United KingdomHQ checked Sep 19, 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 19, 2026
8	Concepto Solutions LTD	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	12 contacts →
	Partial evidence “Concepto AV is an electrical-led technology company delivering high-quality electrical installations across residential and commercial projects in London.” Source: RevenueBase Database · checked Sep 19, 2026
9	SPL Construct LTD	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	12 contacts →
	Partial 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 19, 2026
10	Zeus Electrical Constructions	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	11 contacts →
	Partial evidence “ZEUS is engaged in studies and electrical installations.” Source: RevenueBase Database · checked Sep 19, 2026
11	Jaylow Cables	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	9 contacts →
	Strong evidence “Founded in 1949 by Julius Lobenstein, a refugee from Nazi oppression, Jaylow Supplies has grown from a small electrical wholesale business in North London to a leading name in the…” Source: RevenueBase Database · checked Sep 19, 2026
12	JSJ Smart Homes	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	9 contacts →
	Partial 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 19, 2026
13	Newmay Electrical Services LTD	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	7 contacts →
	Partial evidence “We are pleased to offer our expertise across a comprehensive range of electrical services, including full domestic and commercial installation, full and part rewires, home…” Source: RevenueBase Database · checked Sep 19, 2026
14	R P Bray Electrical Contractors	Partial evidence	London, United KingdomHQ checked Sep 19, 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 19, 2026
15	Total Electric Solutions LTD	Partial evidence	London, United KingdomHQ checked Sep 19, 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 19, 2026
16	Ghir Electrical Supplies LTD	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	6 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
17	Vezo Energy	Partial evidence	London, United KingdomHQ checked Sep 19, 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 19, 2026
18	Amber Electrical Services LTD	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	5 contacts →
	Indirect evidence “As a successful, progressive company, we continually strive to identify project risks, manage agreed performance levels and optimise cost/revenue budgets for all our clients.” Source: RevenueBase Database · checked Sep 19, 2026
19	Eightcube Solutions	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	4 contacts →
	Partial evidence “EIGHTCUBE, based in London, is a fast-growing and ambitious electrical design and build business delivering high quality projects for both domestic and commercial properties and…” Source: RevenueBase Database · checked Sep 19, 2026
20	Group B Electrical Wholesale	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	4 contacts →
	Partial evidence “Hello, We’re Group B Electrical, your friendly and highly knowledgeable independent wholesaler serving large electrical contractors, property developers, hotel chains, government…” Source: RevenueBase Database · checked Sep 19, 2026
21	MPE Electrical Contractors LTD	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	3 contacts →
	Partial evidence “MPE Electrical Contractors are a London /Kent based company specialising in all aspects of electrical installation within the residential, commercial and industrial sectors.” Source: RevenueBase Database · checked Sep 19, 2026
22	Lockesleys	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
23	TNS Electrical Solutions	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	2 contacts →
	Indirect evidence “TNS Solutions is a company that is continually flourishing, due to our efficient and friendly service which can be attested to by our positive reviews online.” Source: RevenueBase Database · checked Sep 19, 2026
24	Electrical4less	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	2 contacts →
	Partial evidence “Welcome to Electrical4Less Ltd.” 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: electrical system suppliers. 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 system suppliers.
Partial evidence: Its own public description names part of electrical system suppliers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrical system suppliers. 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 24 of 190 electrical system suppliers based in London, United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 190 reachable decision-makers.

Free signup · no credit card

View the full list →

Electrical system suppliers based in London, United Kingdom at a glance

As of Sep 19, 2026

22.7%Verified-email coverage

4.4Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

127

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 190 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 system suppliers, 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 system suppliers”. 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 system suppliers), 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 system suppliers, 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, 190 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.

Electrical system suppliers by metro in the United Kingdom

Electrical system suppliers in London190
Electrical system suppliers in Manchester50
Electrical system suppliers in Birmingham39
Electrical system suppliers in Leeds38
Electrical system suppliers in Nottingham36
Electrical system suppliers in Sheffield35
Electrical system suppliers in Glasgow32
Electrical system suppliers in Southampton29
Electrical system suppliers in Hull28
Electrical system suppliers in Leicester28
Electrical system suppliers in Bristol26
Electrical system suppliers in Liverpool25

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 system suppliers, 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 system suppliers are there based in London, United Kingdom?

RevenueBase identified 190 electrical system suppliers 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?

Grant Walker Engineering, headquartered in London, tops this list with the largest team on record.

Which city has the most electrical system suppliers?

London leads with 190 headquartered companies, followed by Manchester (50) and Birmingham (39).

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 190 verified decision-maker contacts tracked across these 190 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.

Ready to reach these companies? Verified emails and direct dials for all 190 electrical system suppliers based in London, United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Electrical system suppliers by geography

Browse the directory

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.