Company lists · Data refreshed September 2026

Top 23 Electrical maintenance contractors based in London, United Kingdom

Name: Electrical maintenance contractors 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 249 companies tracked

RevenueBase identified 249 electrical maintenance contractors headquartered in London, United Kingdom as of September 2026 and tracks 836 professional contacts across them, including 164 with verified work emails. London is the largest hub.

This list covers electrical maintenance contractors 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

249Companies

836Contacts tracked

164Verified emails

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The 23 largest electrical maintenance contractors based in London, United Kingdom

Ranked by team size

Top 23 of 249 electrical maintenance contractors 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 maintenance 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	Redworx MEP Limited	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	37 contacts →
	Strong evidence “About Us: Established in 2023, Redworx MEP Limited is a dynamic Mechanical and Electrical contractor aiming to make a significant impact in the London market.” Source: RevenueBase Database · checked Sep 16, 2026
2	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
3	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
4	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
5	London Electrical Solutions LTD	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	11 contacts →
	Partial evidence “London Electrical Solutions: Experienced Electricians operating across London Residential & Commercial Electricians serving Greater London London Electrical Solutions is a…” Source: RevenueBase Database · checked Sep 16, 2026
6	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
7	Intrelec LTD	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	9 contacts →
	Strong evidence “Intrelec are NICEIC Approved Mechanical & Electrical Contractors in London providing M&E design, installation and maintenance services to commercial, industrial and residential…” Source: RevenueBase Database · checked Sep 16, 2026
8	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
9	PRO Maintenance Services LTD	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	8 contacts →
	Partial evidence “We, at PRO Maintenance Services Ltd, deliver high-quality, cost-effective solutions to all building maintenance needs.” Source: RevenueBase Database · checked Sep 16, 2026
10	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
11	Newmay Electrical Services LTD	Partial evidence	London, United KingdomHQ checked Sep 16, 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 16, 2026
12	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
13	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
14	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
15	Astoria Fire And Security	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	1-10	5 contacts →
	Strong evidence “Astoria Fire and Security carry out installations and provide maintenance services in the Electrical, Fire Alarm and CCTV industry to commercial, industrial and domestic…” Source: RevenueBase Database · checked Sep 16, 2026
16	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
17	Amber Electrical Services LTD	Indirect evidence	London, United KingdomHQ checked Sep 16, 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 16, 2026
18	LUX Electrical Solutions LTD	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	1-10	5 contacts →
	Partial evidence “Lux Electrical Solutions is a London based electrical partner specialising in compliance, remedials and premium fit outs for property management firms and high end retail brands.” Source: RevenueBase Database · checked Sep 16, 2026
19	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
20	Code Electrical LTD	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	1-10	4 contacts →
	Partial evidence “At Code Electrical, our friendly and reliable domestic and commercial electricians are perfectly suited to carry out any type of electrical work for your business.” Source: RevenueBase Database · checked Sep 16, 2026
21	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
22	MPE Electrical Contractors LTD	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	3 contacts →
	Strong 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 16, 2026
23	Current Phase	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	1-10	3 contacts →
	Partial evidence “Founded in 2014, Current Phase is a family-run electrical company led by Hugo Gantley and Demi Williams-Smith.” 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 maintenance 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 electrical maintenance contractors.
Partial evidence: Its own public description names part of electrical maintenance contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrical maintenance 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 23 of 249 electrical maintenance contractors based in London, United Kingdom

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Electrical maintenance contractors based in London, United Kingdom at a glance

As of Sep 16, 2026

19.6%Verified-email coverage

3.4Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · London

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

173

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 249 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 maintenance 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 London, United Kingdom whose own description of what they do matches “electrical maintenance 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 electrical maintenance 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 electrical maintenance contractors, 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, 164 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 maintenance contractors by metro in the United Kingdom

Electrical maintenance contractors in London249
Electrical maintenance contractors in Bristol45
Electrical maintenance contractors in Manchester44
Electrical maintenance contractors in Nottingham44
Electrical maintenance contractors in Birmingham40
Electrical maintenance contractors in Leicester36
Electrical maintenance contractors in Southampton36
Electrical maintenance contractors in Glasgow34
Electrical maintenance contractors in Sheffield33
Electrical maintenance contractors in Leeds30
Electrical maintenance contractors in Liverpool29
Electrical maintenance contractors in Hull27

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 maintenance 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 electrical maintenance contractors are there based in London, United Kingdom?

RevenueBase identified 249 electrical maintenance contractors 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?

Redworx MEP Limited, headquartered in London, tops this list with the largest team on record.

Which city has the most electrical maintenance contractors?

London leads with 249 headquartered companies, followed by Bristol (45) and Manchester (44).

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 164 verified decision-maker contacts tracked across these 249 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.