Company lists · Data refreshed November 2026

Top 25 Electrical services based in the United Kingdom

Name: Electrical services based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 7,984 companies tracked

RevenueBase identified 7,984 company matches for electrical services associated with the United Kingdom as of November 2026 and tracks 44,642 professional contacts across them, including 12,460 with verified work emails. London is the largest hub.

This list covers company matches for electrical services associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built

7,984Companies

44,642Contacts tracked

12,460Verified emails

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The 25 largest electrical services based in the United Kingdom

Ranked by team size

Top 25 of 7,984 company matches for electrical services based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	MJ Quinn	Exact match	Prescot, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	1,373 contacts →
	Exact match “At MJ Quinn we believe in creating great connections, with our customers, our people and our world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Dodd Group	Exact match	Telford, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	564 contacts →
	Exact match “Dodd Group was formed in 1947 in Shropshire and has remained a privately owned family business.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Quartzelec Limited	Exact match	Rugby, United KingdomHQ recorded Nov 6, 2026	501-1,000	456 contacts →
	Exact match “Quartzelec is a leading independent electrical engineering group delivering solutions and services in both UK and global markets.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Brush Group	Exact match	Loughborough, United KingdomHQ recorded Nov 6, 2026	501-1,000	229 contacts →
	Exact match “We support the global drive to net zero with innovative, engineered solutions that address grid resilience and systems challenges, facilitate electrification of transport and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	JKM	Exact match	Bedlington, United KingdomHQ recorded Nov 6, 2026	201-500	203 contacts →
	Exact match “JKM Electricals is a well-established company which has built up a first-class reputation, Through successfully delivering high-quality workmanship.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	T Brown Group	Exact match	Leatherhead, United KingdomHQ recorded Nov 6, 2026	501-1,000	187 contacts →
	Exact match “T Brown Group was formed on the 1st April 1971.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Gough & Kelly	Exact match	Leeds, United KingdomHQ recorded Nov 6, 2026	51-200	184 contacts →
	Exact match “A premier provider of security products and services across England, Gough & Kelly was formed in 1988 to influence and inspire the security and electrical marketplace by providing…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Omega RED Group	Exact match	Nottingham, United KingdomHQ recorded Nov 6, 2026	201-500	173 contacts →
	Exact match “Our customers made us the UK market leader in electrical earthing systems and lightning protection systems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Aspect	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	154 contacts →
	Exact match “Founded in 2004, Aspect combines expertise and innovation to deliver professional property care across London and the South East.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	MCS	Exact match	Bristol, United KingdomHQ recorded Nov 6, 2026	51-200	152 contacts →
	Exact match “MCS Ltd are specialist building services engineers covering all aspects of commercial and industrial building services and infrastructure engineering across varying market sectors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Guardian Electrical Compliance LTD	Exact match	Sheffield, United KingdomHQ recorded Nov 6, 2026	51-200	147 contacts →
	Exact match “Founded in 2010, Guardian Electrical Compliance Ltd have become the market leaders in terms of Duty Holder guidance, technical & legislative support, site delivery and after sales…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	RGE Services	Exact match	London, United KingdomHQ recorded Nov 6, 2026	201-500	127 contacts →
	Exact match “We’ve been providing fire and electrical compliance services for over 30 years, supporting clients across London and the Southeast with our locally based engineers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	AF Switchgear	Exact match	Sutton-in-ashfield, United KingdomHQ recorded Nov 6, 2026	201-500	125 contacts →
	Exact match “AF Switchgear is one of the UK's largest switchgear manufacturers and set the standard for LV Switchgear and Power Distribution.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	TES Group	Exact match	Cookstown, United KingdomHQ recorded Nov 6, 2026	51-200	123 contacts →
	Exact match “TES are Mechanical & Electrical Specialists, working to the highest standard of engineering excellence.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Darke & Taylor LTD	Exact match	Oxfordshire, United KingdomHQ recorded Nov 6, 2026	51-200	122 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	G & A Barnie Group LTD	Exact match	Inverness, United KingdomHQ recorded Nov 6, 2026	201-500	120 contacts →
	Exact match “Premier quality workmanship and personal attention are characteristics of G&A Barnie.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Watkins	Exact match	Ramsgate, United KingdomHQ recorded Nov 6, 2026	51-200	118 contacts →
	Exact match “For over 60 years, Watkins has been a leading provider of Mechanical, Electrical and Plumbing services in London and SE England.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Stothers M&e LTD	Exact match	Belfast, United KingdomHQ recorded Nov 6, 2026	51-200	116 contacts →
	Exact match “Founded in 1957, Stothers (M&E) Ltd is a national market leader in the provision of Mechanical and Electrical Building Services and Contract Maintenance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Asee Group	Exact match	Newry, United KingdomHQ recorded Nov 6, 2026	51-200	115 contacts →
	Exact match “ASEE Group is a leader in mechanical and electrical engineering, specialising in generator integration and full-service installations for 45+ years.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	LJJ LTD	Exact match	Stockton On Tees, United KingdomHQ recorded Nov 6, 2026	201-500	111 contacts →
	Exact match “LJJ formed in 2001 as a private limited company and is a multi-disciplined organisation capable of completing major mechanical, electrical and public health service contracts in a…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Rock Power Connections LTD	Exact match	Bromsgrove, United KingdomHQ recorded Nov 6, 2026	51-200	110 contacts →
	Exact match “Rock Power Connections are experts in electrical connections with a proven track record of quality and safety.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Oakray Limited	Exact match	Enfield, United KingdomHQ recorded Nov 6, 2026	201-500	110 contacts →
	Exact match “Oakray was established in 1979 and we are very proud of our long heritage.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Sinewave	Exact match	Swindon, United KingdomHQ recorded Nov 6, 2026	51-200	109 contacts →
	Exact match “Sinewave are a specialist engineering company who provide High and Low voltage electrical services across the UK.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	MSE LTD	Exact match	Redditch, United KingdomHQ recorded Nov 6, 2026	11-50	102 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Sureserve Compliance Fire	Exact match	Horsham, United KingdomHQ recorded Nov 6, 2026	501-1,000	95 contacts →
	Exact match “With over 35 Years expertise, Sureserve Compliance Fire is an Industry leading business excelling in delivering Fire and Electrical compliance and testing services to housing…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “electrical services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 7,984 electrical services based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 12,460 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Electrical services based in the United Kingdom at a glance

As of Nov 6, 2026

27.9%Verified-email coverage

5.6Average contacts per company

1-10Median size (employees)

6.3%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

4,779

11-50

2,222

51-200

367

201-500

501-1,000

1,001-5,000

10001+

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 7,984 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United Kingdom whose business descriptions match “electrical services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 12,460 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Electrical services by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “electrical services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many electrical services are there based in the United Kingdom?

RevenueBase identified 7,984 company matches for electrical services associated with the United Kingdom as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

MJ Quinn tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most electrical services?

London leads with 503 company records, followed by Manchester (107) and Bristol (97).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 12,460 professional contacts with verified work emails tracked across these 7,984 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.