Company lists · Data refreshed November 2026

Top 25 Electrical infrastructure contractors based in the United Kingdom

Name: Electrical infrastructure 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 4,395 companies tracked

RevenueBase identified 4,395 company matches for electrical infrastructure contractors associated with the United Kingdom as of November 2026 and tracks 37,381 professional contacts across them, including 11,286 with verified work emails. London is the largest hub.

This list covers company matches for electrical infrastructure 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

4,395Companies

37,381Contacts tracked

11,286Verified emails

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The 25 largest electrical infrastructure contractors based in the United Kingdom

Ranked by team size

Top 25 of 4,395 company matches for electrical infrastructure 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	Murphy	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	3,366 contacts →
	Exact match “Murphy is a leading international, multi-disciplined engineering and construction company founded in 1951 that improves life by delivering world-class infrastructure.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Kelly Group	Exact match	Wembley, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	1,204 contacts →
	Exact match “Established in 1985 to support the emerging UK cable television market, Kelly Group has diversified to meet the needs of our clients.” 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	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	Clarkson Evans LTD	Exact match	Gloucester, United KingdomHQ recorded Nov 6, 2026	501-1,000	360 contacts →
	Exact match “With over 850 staff, we are one of the UK’s leading electrical contractors and solar PV installers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	SPL Powerlines Uk&i	Exact match	Coatbridge, United KingdomHQ recorded Nov 6, 2026	501-1,000	337 contacts →
	Exact match “SPL Powerlines UK & I is a leading multi-disciplinary infrastructure specialist, offering end-to-end delivery across both rail and energy sectors with capabilities that set us…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Enerveo	Exact match	Birmingham, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	332 contacts →
	Exact match “Enerveo is a multi-disciplinary contracting business, with the skills and expertise to deliver complex projects in complex environments across a number of different service lines.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	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
9	IQA Elecnor	Exact match	Glasgow, United KingdomHQ recorded Nov 6, 2026	201-500	204 contacts →
	Exact match “IQA lead the way in designing, building, maintaining, and upgrading electrical utility networks, telecommunication networks, EVCP and electrical infrastructure for both the public…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	PN Daly Limited	Exact match	Rochdale, United KingdomHQ recorded Nov 6, 2026	501-1,000	198 contacts →
	Exact match “P.N.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	MSF	Exact match	Podington, United KingdomHQ recorded Nov 6, 2026	201-500	190 contacts →
	Exact match “MSF is a nationwide highways contractor specialising in lighting, electrical, signage, civils, technology, and commercial EV.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Wingate Electrical PLC	Exact match	Basingstoke, United KingdomHQ recorded Nov 6, 2026	201-500	185 contacts →
	Exact match “Wingate Electrical Plc are the leading provider of Temporary Site Construction Services throughout the UK and within mainland Europe operating from offices in Basingstoke…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	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
14	Aptus Utilities LTD	Exact match	Bolton, United KingdomHQ recorded Nov 6, 2026	201-500	152 contacts →
	Exact match “Aptus Utilities is a leading multi-utility connections provider delivering electric, water, gas, EV Charging and street lighting design and installation services throughout the UK.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Batt Cables Worldwide	Exact match	Erith, United KingdomHQ recorded Nov 6, 2026	201-500	149 contacts →
	Exact match “Batt Cables has been a trusted name in cable distribution since 1952.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Fulcrum Group	Exact match	Sheffield, United KingdomHQ recorded Nov 6, 2026	201-500	146 contacts →
	Exact match “Fulcrum is a leading ICP (Independent Connection Provider) designing and building electricity, gas and water connections and infrastructure for all sizes of residential…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	S&r Construction LTD	Exact match	Brierley Hill, United KingdomHQ recorded Nov 6, 2026	201-500	139 contacts →
	Exact match “S&R Construction was founded in 1998 with a view to providing affordable, sustainable gas, water and electric mains and utility installation services for a broad range of clients.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Swann Engineering Group LTD	Exact match	Braintree, United KingdomHQ recorded Nov 6, 2026	51-200	128 contacts →
	Exact match “About Swann Engineering Group Founded in 1974, Swann Engineering Group specializes in delivering turnkey solutions for complex engineering challenges.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Doocey Group	Exact match	Tipton, United KingdomHQ recorded Nov 6, 2026	201-500	127 contacts →
	Exact match “Doocey Group Utility Infrastructure Contractor operating nationally in the construction Industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	WB Power Services LTD	Exact match	Heanor, United KingdomHQ recorded Nov 6, 2026	51-200	124 contacts →
	Exact match “WB Power Services Ltd (now proudly part of Rehlko) provide critical power services to some of the UK’s most important businesses and organisations, ensuring essential services are…” 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	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
23	Excalon LTD	Exact match	Salford, United KingdomHQ recorded Nov 6, 2026	201-500	114 contacts →
	Exact match “Excalon is one of the Britain’s leading UK Electrical Utility Service Providers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	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
25	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

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 infrastructure 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 4,395 electrical infrastructure contractors based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 11,286 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Electrical infrastructure contractors based in the United Kingdom at a glance

As of Nov 6, 2026

30.2%Verified-email coverage

8.5Average contacts per company

1-10Median size (employees)

6.1%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

2,383

11-50

1,436

51-200

261

201-500

501-1,000

1,001-5,000

5,001-10,000

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 4,395 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 infrastructure 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 11,286 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 infrastructure 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 “electrical infrastructure contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 4,395 company matches for electrical infrastructure 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?

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

Which city has the most electrical infrastructure contractors?

London leads with 266 company records, followed by Manchester (78) and Bristol (55).

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 11,286 professional contacts with verified work emails tracked across these 4,395 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.