Company lists · Data refreshed November 2026

Top 24 Electromechanical contractors based in the United Kingdom

Name: Electromechanical 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 9,348 companies tracked

RevenueBase identified 9,348 company matches for electromechanical contractors associated with the United Kingdom as of November 2026 and tracks 75,502 professional contacts across them, including 23,826 with verified work emails. London is the largest hub.

This list covers company matches for electromechanical 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

9,348Companies

75,502Contacts tracked

23,826Verified emails

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The 24 largest electromechanical contractors based in the United Kingdom

Ranked by team size

Top 24 of 9,348 company matches for electromechanical 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	Crown House Technologies	Exact match	Dartford, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	650 contacts →
	Exact match “Part of the Laing O’Rourke Group, and founded on more than 200 years of experience, we are a leading construction and infrastructure technology services provider, supplying a…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	FES Group	Exact match	Stirling, United KingdomHQ recorded Nov 6, 2026	501-1,000	629 contacts →
	Exact match “The FES Group is one of the largest independent technical services companies in the UK over 60 years of experience providing building services solutions to a wide range of…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	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
6	Imtech	Exact match	Staines-upon-thames, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	517 contacts →
	Exact match “Imtech has rebranded to Dalkia UK.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	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
8	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
9	City Building Engineering Services Cbes	Exact match	Glasgow, United KingdomHQ recorded Nov 6, 2026	501-1,000	380 contacts →
	Exact match “City Building Engineering Services is a construction and engineering company providing constructive solutions within a variety of sectors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Briggs & Forrester Group	Exact match	Northampton, United KingdomHQ recorded Nov 6, 2026	501-1,000	352 contacts →
	Exact match “The Briggs & Forrester Group is an award winning building services specialist and is one of the industry’s largest independent contractors with an annual turnover in excess of…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Space Engineering Services LTD	Exact match	Bristol, United KingdomHQ recorded Nov 6, 2026	201-500	325 contacts →
	Exact match “Space Engineering Services is the UK’s leading provider of refrigeration, heating, ventilation and air conditioning services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Gratte Brothers Group	Exact match	London, United KingdomHQ recorded Nov 6, 2026	501-1,000	268 contacts →
	Exact match “Gratte Brothers Group is a leading independent provider of comprehensive building services, renowned for exceptional quality.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	ESG	Exact match	Romford, United KingdomHQ recorded Nov 6, 2026	201-500	252 contacts →
	Exact match “Essex Services Group (ESG) is a multi-disciplined MEP company founded in 1975, beginning as an electrical services contractor.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	JCA Engineering	Exact match	Stevenage, United KingdomHQ recorded Nov 6, 2026	201-500	241 contacts →
	Exact match “JCA is a multi-faceted engineering services and construction business.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	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
16	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
17	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
18	Lancer Scott LTD	Exact match	Bristol, United KingdomHQ recorded Nov 6, 2026	51-200	224 contacts →
	Exact match “THE CONSTRUCTION PEOPLE - At Lancer Scott we care about what we do and the people we work with.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	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
20	Eric Wright Water LTD	Exact match	Preston, United KingdomHQ recorded Nov 6, 2026	201-500	198 contacts →
	Exact match “Eric Wright Water Ltd (part of the Eric Wright Group) is a multi-disciplinary engineering and construction company working in the water and wastewater industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	BJF Group	Exact match	Sandling, United KingdomHQ recorded Nov 6, 2026	201-500	194 contacts →
	Exact match “BJF Group is a diverse building solutions company comprised of six complementary divisions; Facilities Management, Construction, Mechanical & Electrical, Project Services, MEP…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Carter Synergy	Exact match	Birmingham, United KingdomHQ recorded Nov 6, 2026	201-500	191 contacts →
	Exact match “Carter Synergy is a nation-wide provider of refrigeration, mechanical, electrical and other core building services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	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
24	Bridges	Exact match	Midsomer Norton, United KingdomHQ recorded Nov 6, 2026	201-500	179 contacts →
	Exact match “Featured on the Sunday Times Best Place to Work 2024, Bridges’ team share the understanding that we measure our performance by client satisfaction.” 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 “electromechanical 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 24 of 9,348 electromechanical contractors based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 23,826 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Electromechanical contractors based in the United Kingdom at a glance

As of Nov 6, 2026

31.6%Verified-email coverage

8.1Average contacts per company

1-10Median size (employees)

6.9%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

5,051

11-50

2,966

51-200

638

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 9,348 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 “electromechanical 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 23,826 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.

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

How many electromechanical contractors are there based in the United Kingdom?

RevenueBase identified 9,348 company matches for electromechanical 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 electromechanical contractors?

London leads with 647 company records, followed by Manchester (134) and Nottingham (116).

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 23,826 professional contacts with verified work emails tracked across these 9,348 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.