Company lists · Data refreshed November 2026

Top 25 Electrical contractors renewable energy based in the United Kingdom

Name: Electrical contractors renewable energy 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 5,719 companies tracked

RevenueBase identified 5,719 company matches for electrical contractors renewable energy associated with the United Kingdom as of November 2026 and tracks 33,654 professional contacts across them, including 9,713 with verified work emails. London is the largest hub.

This list covers company matches for electrical contractors renewable energy 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

5,719Companies

33,654Contacts tracked

9,713Verified emails

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The 25 largest electrical contractors renewable energy based in the United Kingdom

Ranked by team size

Top 25 of 5,719 company matches for electrical contractors renewable energy 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	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
2	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
3	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
4	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
5	Powersystems	Exact match	Bristol, United KingdomHQ recorded Nov 6, 2026	51-200	129 contacts →
	Exact match “Powered by People.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Project Solar UK	Exact match	Burton On Trent, United KingdomHQ recorded Nov 6, 2026	201-500	125 contacts →
	Exact match “Project Solar UK Ltd are a well-established Renewable Energy company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Glow Green	Exact match	Bournemouth, United KingdomHQ recorded Nov 6, 2026	51-200	125 contacts →
	Exact match “Glow Green is one of the UK's leading installers of Solar Panels, Battery Storage, Heat Pumps, Boilers, AC Units, & EV Chargers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	AES	Exact match	Enfield, United KingdomHQ recorded Nov 6, 2026	201-500	123 contacts →
	Exact match “As renewable energy technology experts, we have the knowledge and skills to help commercial clients switch to a greener, lower cost and more independent energy source.” 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	Correct Contract Services CCS	Exact match	Andover, United KingdomHQ recorded Nov 6, 2026	201-500	120 contacts →
	Exact match “CCS provides professional compliance, energy and retrofit services to the social housing sector.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	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
13	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
14	Belectric UK Member Of Elevion Group	Exact match	Brinkworth, United KingdomHQ recorded Nov 6, 2026	51-200	109 contacts →
	Exact match “BELECTRIC UK is part of BELECTRIC, one of Europe's leading EPC service providers in the development, construction, and operation of solar power plants.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	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
16	Ventus Energy	Exact match	North Shields, United KingdomHQ recorded Nov 6, 2026	51-200	96 contacts →
	Exact match “We are a High Voltage Renewable Energy Engineering Company working on and offshore across the world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	BOXT	Exact match	Leeds, United KingdomHQ recorded Nov 6, 2026	51-200	93 contacts →
	Exact match “We started out as a trailblazing boiler installation company in 2017 – the first to offer everything effortlessly online.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Evergen Solar	Exact match	Maidenhead, United KingdomHQ recorded Nov 6, 2026	51-200	90 contacts →
	Exact match “Fully funded solar solutions specialising in Commercial and Residential Solar with Battery.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	CPS Building Services LTD	Exact match	Cambridge, United KingdomHQ recorded Nov 6, 2026	51-200	87 contacts →
	Exact match “CPS Building Services Ltd are experts in design, installation and maintenance of all mechanical and electrical services including renewables.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Purdy Part Of Sureserve	Exact match	London, United KingdomHQ recorded Nov 6, 2026	201-500	85 contacts →
	Exact match “Who are we?” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	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
22	Energise Energy Solutions	Exact match	Doncaster, United KingdomHQ recorded Nov 6, 2026	201-500	81 contacts →
	Exact match “Specialising in Smart Metering, Isolator Switch Installations & Renewable Energy Solutions Founded in 2018, Energise Energy has been working independently and alongside major…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	United GAS & Power	Exact match	Guiseley, United KingdomHQ recorded Nov 6, 2026	51-200	78 contacts →
	Exact match “UGP is the highest rated business renewable energy supplier.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Alt-Group	Exact match	Worcester, United KingdomHQ recorded Nov 6, 2026	51-200	65 contacts →
	Exact match “Alt-Group is a forward-thinking, renewable energy company; advising on, installing and maintaining excellent renewable systems including Solar PV, EV Charging & Batteries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Midwest Mechanical And Electrical Services LTD	Exact match	Wolverhampton, United KingdomHQ recorded Nov 6, 2026	201-500	65 contacts →
	Exact match “Electrical and Mechanical Contractors.” 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 contractors renewable energy”. 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 5,719 electrical contractors renewable energy based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 9,713 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Electrical contractors renewable energy based in the United Kingdom at a glance

As of Nov 6, 2026

28.9%Verified-email coverage

5.9Average contacts per company

1-10Median size (employees)

6.0%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

3,344

11-50

1,759

51-200

264

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 5,719 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 contractors renewable energy” 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 9,713 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 contractors renewable energy 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 contractors renewable energy”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 5,719 company matches for electrical contractors renewable energy 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?

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

Which city has the most electrical contractors renewable energy?

London leads with 343 company records, followed by Manchester (83) and Nottingham (77).

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 9,713 professional contacts with verified work emails tracked across these 5,719 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.