Company lists · Data refreshed November 2026

Top 25 Commercial electrical services based in the United Kingdom

Name: Commercial 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 4,837 companies tracked

RevenueBase identified 4,837 company matches for commercial electrical services associated with the United Kingdom as of November 2026 and tracks 32,309 professional contacts across them, including 9,129 with verified work emails. London is the largest hub.

This list covers company matches for commercial 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

4,837Companies

32,309Contacts tracked

9,129Verified emails

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The 25 largest commercial electrical services based in the United Kingdom

Ranked by team size

Top 25 of 4,837 company matches for commercial 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	J Brand LTD	Exact match	London, United KingdomHQ recorded Nov 6, 2026	n/a	1,265 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	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
4	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
5	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
6	Irwin M&e	Exact match	Portadown, United KingdomHQ recorded Nov 6, 2026	201-500	148 contacts →
	Exact match “We provide a full range of Mechanical, Electrical, Energy and Renewables installation and maintenance services to clients, across both public and private sectors throughout the UK…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Smith & Byford	Exact match	Cheam, United KingdomHQ recorded Nov 6, 2026	201-500	144 contacts →
	Exact match “Smith & Byford is a family-owned and operated building services company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Cilantro Engineering UK Limited	Exact match	London, United KingdomHQ recorded Nov 6, 2026	201-500	126 contacts →
	Exact match “Cilantro Engineering is a multi-discipline Building Services Contractor offering a vast range of Mechanical and Electrical Design & Installation services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	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
10	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
11	East West Connect LTD	Exact match	Perivale, United KingdomHQ recorded Nov 6, 2026	201-500	117 contacts →
	Exact match “Founded in 1988, we are a family-owned business of passionate engineers who specialise in building services-driven construction projects, undertaking all major works in-house.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	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
13	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
14	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
15	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
16	JCW Energy Services LTD	Exact match	Melbourn, United KingdomHQ recorded Nov 6, 2026	201-500	109 contacts →
	Exact match “JCW Energy Services is a privately held SME business operating in the building services engineering sector throughout the UK.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	DPL Group LTD	Exact match	Ipswich, United KingdomHQ recorded Nov 6, 2026	51-200	102 contacts →
	Exact match “DPL Group consists of multiple divisions, including Mechanical & Electrical Installations, Fire & Security Installations and Renewable Technologies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	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
19	Woodford	Exact match	Loughton, United KingdomHQ recorded Nov 6, 2026	51-200	99 contacts →
	Exact match “Woodford specialise in mechanical and electrical building services for the construction market.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Imtech Engineering Services North	Exact match	Preston, United KingdomHQ recorded Nov 6, 2026	201-500	98 contacts →
	Exact match “Our Engineering Services business stream works across the UK’s built environment via three regional areas of North, Central and London and South.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Grant Walker Engineering	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	92 contacts →
	Exact match “Grant Walker Engineering specialise in the complete installation of Electrical and Mechanical systems across all work sectors including quality office developments, commercial and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Gloster MEP LTD	Exact match	Southwark, United KingdomHQ recorded Nov 6, 2026	51-200	88 contacts →
	Exact match “Gloster MEP Ltd are a dynamic driven Mechanical and Electrical Contractor, well known within the industry for successfully delivering building services solutions to the Central…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	AKD	Exact match	Edinburgh, United KingdomHQ recorded Nov 6, 2026	51-200	82 contacts →
	Exact match “AKD’s clients get quick results, normally leading to reduced costs and gaining an improved service.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Maze Engineering LTD	Exact match	London, United KingdomHQ recorded Nov 6, 2026	11-50	81 contacts →
	Exact match “Maze Engineering was established in 2003 and provides refurbishment, maintenance and fit out mechanical and electrical services in the commercial, industrial, education and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Hutcheon Services LTD	Exact match	Aberdeen, United KingdomHQ recorded Nov 6, 2026	51-200	78 contacts →
	Exact match Recorded description not available. 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 “commercial 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 4,837 commercial electrical services based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 9,129 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Commercial electrical services based in the United Kingdom at a glance

As of Nov 6, 2026

28.3%Verified-email coverage

6.7Average contacts per company

1-10Median size (employees)

7.0%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

2,716

11-50

1,509

51-200

258

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 4,837 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 “commercial 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 9,129 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.

Commercial 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 “commercial electrical services”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 4,837 company matches for commercial 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 commercial electrical services?

London leads with 337 company records, followed by Nottingham (65) and Manchester (64).

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 9,129 professional contacts with verified work emails tracked across these 4,837 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.