Company lists · Data refreshed September 2026

Top 25 Electrical maintenance contractors based in the United Kingdom

Name: Electrical maintenance 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 4,002 companies tracked

RevenueBase identified 4,002 electrical maintenance contractors headquartered in the United Kingdom as of September 2026 and tracks 18,380 professional contacts across them, including 4,442 with verified work emails. London is the largest hub.

This list covers electrical maintenance 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

4,002Companies

18,380Contacts tracked

4,442Verified emails

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The 25 largest electrical maintenance contractors based in the United Kingdom

Ranked by team size

Top 25 of 4,002 electrical maintenance 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 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	Quartzelec Limited	Partial evidence	Rugby, United KingdomHQ checked Sep 16, 2026	501-1,000	412 contacts →
	Partial evidence “Quartzelec is a leading independent electrical engineering group delivering solutions and services in both UK and global markets.” Source: RevenueBase Database · checked Sep 16, 2026
2	JKM	Partial evidence	Bedlington, United KingdomHQ checked Sep 16, 2026	201-500	183 contacts →
	Partial evidence “JKM Electricals is a well-established company which has built up a first-class reputation, Through successfully delivering high-quality workmanship.” Source: RevenueBase Database · checked Sep 16, 2026
3	Darke & Taylor LTD	Partial evidence	Oxfordshire, United KingdomHQ checked Sep 16, 2026	51-200	112 contacts →
	Partial evidence “Our mission is to excel in the design, installation and maintenance of the electro-technical systems that connect to create fit for purpose building environments.” Source: RevenueBase Database · checked Sep 16, 2026
4	G & A Barnie Group LTD	Indirect evidence	Inverness, United KingdomHQ checked Sep 16, 2026	201-500	109 contacts →
	Indirect evidence “Premier quality workmanship and personal attention are characteristics of G&A Barnie.” Source: RevenueBase Database · checked Sep 16, 2026
5	Rock Power Connections LTD	Partial evidence	Bromsgrove, United KingdomHQ checked Sep 16, 2026	51-200	105 contacts →
	Partial evidence “Rock Power Connections are experts in electrical connections with a proven track record of quality and safety.” Source: RevenueBase Database · checked Sep 16, 2026
6	MSE LTD	Indirect evidence	Redditch, United KingdomHQ checked Sep 16, 2026	11-50	101 contacts →
	Indirect evidence “MSE are a midlands based building services company and have over 30 years experience in the commercial and industrial environment working with a broad range of clients.” Source: RevenueBase Database · checked Sep 16, 2026
7	DPP LTD	Strong evidence	Southampton, United KingdomHQ checked Sep 16, 2026	201-500	83 contacts →
	Strong evidence “Industry leading Mechanical and Electrical Maintenance Contractor providing essential services to household names within the leisure and retail sectors.” Source: RevenueBase Database · checked Sep 16, 2026
8	AKD	Indirect evidence	Edinburgh, United KingdomHQ checked Sep 16, 2026	51-200	79 contacts →
	Indirect evidence “AKD’s clients get quick results, normally leading to reduced costs and gaining an improved service.” Source: RevenueBase Database · checked Sep 16, 2026
9	Fletcher Moorland	Partial evidence	Stoke On Trent, United KingdomHQ checked Sep 16, 2026	51-200	75 contacts →
	Partial evidence “Fletcher Moorland Ltd, are the experts in repairing, replacing, or upgrading Electric Motors, Pumps, Air Handling Units, Inverter Drives, Servo Motors, HMIs, PCBs, PSUs and more.” Source: RevenueBase Database · checked Sep 16, 2026
10	MKE Engineering Group	Partial evidence	Sittingbourne, United KingdomHQ checked Sep 16, 2026	51-200	63 contacts →
	Partial evidence “MKE Engineering (Mid Kent Electrical) is the largest independent engineering service provider of its kind in the South East, operating from 3 different sites covering Kent…” Source: RevenueBase Database · checked Sep 16, 2026
11	Premier Electrics	Partial evidence	Magherafelt, United KingdomHQ checked Sep 16, 2026	51-200	58 contacts →
	Partial evidence “Premier Electrics have been delivering exciting projects throughout Ireland, UK and Europe since 1993.” Source: RevenueBase Database · checked Sep 16, 2026
12	Orton Group LTD	Strong evidence	Wombourne, United KingdomHQ checked Sep 16, 2026	51-200	56 contacts →
	Strong evidence “01902 894871 Marking its 25th anniversary this year, Orton is a leading provider of electrical, mechanical, installation and maintenance services covering both commercial and…” Source: RevenueBase Database · checked Sep 16, 2026
13	Midwest Mechanical And Electrical Services LTD	Strong evidence	Wolverhampton, United KingdomHQ checked Sep 16, 2026	201-500	55 contacts →
	Strong evidence “Electrical and Mechanical Contractors.” Source: RevenueBase Database · checked Sep 16, 2026
14	Pitts Wilson Limited	Partial evidence	Bradford, United KingdomHQ checked Sep 16, 2026	51-200	55 contacts →
	Partial evidence “Mechanical & Electrical Design and Installation company specialising in Commercial, Retail, Industrial and Leisure Projects.” Source: RevenueBase Database · checked Sep 16, 2026
15	The Wiggett Group LTD	Partial evidence	Brentwood, United KingdomHQ checked Sep 16, 2026	201-500	51 contacts →
	Partial evidence “Wiggett Electrical has gone from strength to strength.” Source: RevenueBase Database · checked Sep 16, 2026
16	NES	Partial evidence	Inverness, United KingdomHQ checked Sep 16, 2026	11-50	51 contacts →
	Partial evidence “NES is an Industrial and Commercial Electrical Engineering and Contracting business, based in the North and North East of Scotland.” Source: RevenueBase Database · checked Sep 16, 2026
17	Edmund Services	Partial evidence	Upminster, United KingdomHQ checked Sep 16, 2026	51-200	47 contacts →
	Partial evidence “M&E Maintenance & Installation Service Provider” Source: RevenueBase Database · checked Sep 16, 2026
18	SOL Services	Partial evidence	Milton Keynes, United KingdomHQ checked Sep 16, 2026	51-200	46 contacts →
	Partial evidence “Based in Milton Keynes, SOL Services which was established in 2003, provide quality and reliable services in all aspects of commercial electrical installation and commercial…” Source: RevenueBase Database · checked Sep 16, 2026
19	The Seaking Group	Partial evidence	Birkenhead, United KingdomHQ checked Sep 16, 2026	51-200	46 contacts →
	Partial evidence “The SeaKing Group offers specialist electrical engineering services to the marine, industrial, commercial, military and offshore sectors.” Source: RevenueBase Database · checked Sep 16, 2026
20	Fixatex LTD	Partial evidence	Hertford, United KingdomHQ checked Sep 16, 2026	51-200	46 contacts →
	Partial evidence “Electrical & Fire Protection Services, Domestic & Commercial.” Source: RevenueBase Database · checked Sep 16, 2026
21	CD Engineering Services Limited	Indirect evidence	Stockton-on-tees, United KingdomHQ checked Sep 16, 2026	11-50	43 contacts →
	Indirect evidence “Welcome to the CD Engineering Services Ltd.” Source: RevenueBase Database · checked Sep 16, 2026
22	Electriql	Strong evidence	Thatcham, United KingdomHQ checked Sep 16, 2026	51-200	43 contacts →
	Strong evidence “ElectriQL leads the way in lighting maintenance, LED installation and electrical compliance testing.” Source: RevenueBase Database · checked Sep 16, 2026
23	NRT Group	Partial evidence	Banstead, United KingdomHQ checked Sep 16, 2026	51-200	42 contacts →
	Partial evidence “Our aim is to be the first choice for electrical and engineering installations.” Source: RevenueBase Database · checked Sep 16, 2026
24	JGF Electrical	Indirect evidence	Dartford, United KingdomHQ checked Sep 16, 2026	11-50	42 contacts →
	Indirect evidence “Commercial Properties Commercial projects benefit from the time we invest in team training to deliver excellent industry standards throughout.” Source: RevenueBase Database · checked Sep 16, 2026
25	John Wright Electrical & Mechanical Services Limited	Partial evidence	Dunnington, United KingdomHQ checked Sep 16, 2026	51-200	41 contacts →
	Partial evidence “Based in York, North Yorkshire, John Wright Electrical & Mechanical Service's skilled & dedicated team have been front and centre of the company's growth over the past 30 years.” 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 25 of 4,002 electrical maintenance contractors based in the United Kingdom

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Electrical maintenance contractors based in the United Kingdom at a glance

As of Sep 16, 2026

24.2%Verified-email coverage

4.6Average contacts per company

1-10Median size (employees)

6.2%Largest-city concentration · London

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

2,594

11-50

1,139

51-200

151

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 4,002 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 the 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 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, 4,442 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

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 the United Kingdom?

RevenueBase identified 4,002 electrical maintenance 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?

Quartzelec Limited, headquartered in Rugby, 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 4,442 verified decision-maker contacts tracked across these 4,002 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.