Company lists · Data refreshed November 2026

Top 25 Industrial electrical contractors based in the United Kingdom

Name: Industrial electrical contractors 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 6,082 companies tracked

RevenueBase identified 6,082 company matches for industrial electrical contractors associated with the United Kingdom as of November 2026 and tracks 43,391 professional contacts across them, including 13,244 with verified work emails. London is the largest hub.

This list covers company matches for industrial electrical contractors 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

6,082Companies

43,391Contacts tracked

13,244Verified emails

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The 25 largest industrial electrical contractors based in the United Kingdom

Ranked by team size

Top 25 of 6,082 company matches for industrial electrical contractors 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	Freedom	Exact match	Leeds, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	740 contacts →
	Exact match “Freedom is a leading provider of facilities and power engineering services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	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
5	Balfour Beatty Kilpatrick	Exact match	Glasgow, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	503 contacts →
	Exact match “As a leading mechanical & electrical engineering provider, we design, install and maintain the complex systems and technologies that underpin the UK’s national infrastructure and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	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
7	Engenda Group	Exact match	Runcorn, United KingdomHQ recorded Nov 6, 2026	501-1,000	325 contacts →
	Exact match “Engenda Group enhances the traditional supply of engineering services to deliver essential, value adding mechanical, electrical and instrumentation solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Rainham Industrial Services LTD	Exact match	Essex, United KingdomHQ recorded Nov 6, 2026	501-1,000	275 contacts →
	Exact match “Rainham provides specialist industrial services that support the installation, maintenance, refurbishment, decommissioning and replacement of large industrial plants and building…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Actemium UK	Exact match	Birmingham, United KingdomHQ recorded Nov 6, 2026	501-1,000	226 contacts →
	Exact match “At Actemium UK, we are expert electrical, automation and mechanical engineers delivering bespoke engineering solutions across industry, infrastructure and beyond.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Dron & Dickson	Exact match	Stirling, United KingdomHQ recorded Nov 6, 2026	201-500	225 contacts →
	Exact match “Dron & Dickson are specialists in integrated supply, installation and maintenance of harsh & hazardous area electrical equipment.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	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
12	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
13	Kempston Controls	Exact match	Rushden, United KingdomHQ recorded Nov 6, 2026	201-500	146 contacts →
	Exact match “Kempston Controls is a leader in distributing electrical and mechanical industrial control and automation components.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	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
15	Z-Tech Control Systems LTD	Exact match	Swavesey, United KingdomHQ recorded Nov 6, 2026	201-500	144 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	DPS Group	Exact match	Glenrothes, United KingdomHQ recorded Nov 6, 2026	51-200	142 contacts →
	Exact match “Shaping the future, together.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Cema LTD	Exact match	Nottingham, United KingdomHQ recorded Nov 6, 2026	201-500	136 contacts →
	Exact match “CEMA was founded in 1987 in Nottingham, and has quickly grown to become one of the leading electrical engineering companies in the United Kingdom, specialising in understanding…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	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
19	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
20	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
21	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
22	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
23	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
24	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
25	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

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 “industrial electrical contractors”. 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 6,082 industrial electrical contractors based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 13,244 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Industrial electrical contractors based in the United Kingdom at a glance

As of Nov 6, 2026

30.5%Verified-email coverage

7.1Average contacts per company

1-10Median size (employees)

6.2%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

3,453

11-50

1,837

51-200

331

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 6,082 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 “industrial electrical contractors” 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 13,244 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.

Industrial electrical contractors 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 “industrial electrical contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many industrial electrical contractors are there based in the United Kingdom?

RevenueBase identified 6,082 company matches for industrial electrical contractors 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 industrial electrical contractors?

London leads with 378 company records, followed by Manchester (85) and Nottingham (76).

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 13,244 professional contacts with verified work emails tracked across these 6,082 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.