Company lists · Data refreshed October 2026

Top 25 Energy efficiency program implementation services based in the United Kingdom

Name: Energy efficiency program implementation services based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 25, 2026 379 companies tracked

RevenueBase identified 379 company matches for energy efficiency program implementation services associated with the United Kingdom as of October 2026 and tracks 11,665 professional contacts across them, including 3,449 with verified work emails. London is the largest hub.

This list covers company matches for energy efficiency program implementation 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 October 25, 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 Oct 25, 2026 How this list was built

379Companies

11,665Contacts tracked

3,449Verified emails

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The 25 largest energy efficiency program implementation services based in the United Kingdom

Ranked by team size

Top 25 of 379 company matches for energy efficiency program implementation services based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 25, 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	British GAS	Exact match	Windsor, United KingdomHQ recorded Oct 25, 2026	10001+	9,535 contacts →
	Exact match “Taking care of things.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
2	TROO	Exact match	Doxford International Business Park, United KingdomHQ recorded Oct 25, 2026	51-200	112 contacts →
	Exact match “Managing business energy can be overwhelming.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
3	ECO Logic Partners	Exact match	Team Valley, United KingdomHQ recorded Oct 25, 2026	11-50	63 contacts →
	Exact match “We bring good energy to the table to help you save yours.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
4	Energy Drive	Exact match	London, United KingdomHQ recorded Oct 25, 2026	51-200	59 contacts →
	Exact match “We help heavy industry like steel become more energy efficient through the deployment of intelligent MV motor control via a zero-capex model: guaranteed net savings for the…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
5	Cotswold Energy Group	Exact match	Stonehouse, United KingdomHQ recorded Oct 25, 2026	51-200	47 contacts →
	Exact match “Secure your greener future with renewable energy solutions!” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
6	Cotopaxi LTD	Exact match	White Moss Business Park, United KingdomHQ recorded Oct 25, 2026	11-50	47 contacts →
	Exact match “Cotopaxi Energy is an independent engineering consultancy specialising in utility and carbon reduction.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
7	Cenergist	Exact match	Washington, United KingdomHQ recorded Oct 25, 2026	201-500	40 contacts →
	Exact match “Cenergist is a specialist energy and water efficiency company in the UK and Europe.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
8	On-Site Energy LTD	Exact match	Liverpool, United KingdomHQ recorded Oct 25, 2026	11-50	33 contacts →
	Exact match “On-Site Energy was founded to support energy intensive manufacturers to improve their energy efficiency and achieve their sustainability goals through innovation and an…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
9	Scis Group	Exact match	Fareham, United KingdomHQ recorded Oct 25, 2026	51-200	31 contacts →
	Exact match “Hello.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
10	Ineco Energy	Exact match	Stoneleigh Park, United KingdomHQ recorded Oct 25, 2026	11-50	23 contacts →
	Exact match “Guiding businesses in their clean energy transition, by providing the best energy technology that prioritizes self-sufficiency, economic responsibility, and environmental…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
11	Energy & Technical Services LTD	Exact match	Bristol, United KingdomHQ recorded Oct 25, 2026	11-50	20 contacts →
	Exact match “Energy and Technical Services is an expert in energy consulting and service and has been for 25th years.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
12	Powerhub Solutions	Exact match	Stockport, United KingdomHQ recorded Oct 25, 2026	11-50	20 contacts →
	Exact match “At Powerhub Solutions, we help businesses cut energy waste, lower costs, and reduce carbon, without compromising performance or guest experience.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
13	CT ECO Plus	Exact match	Littlehampton, United KingdomHQ recorded Oct 25, 2026	11-50	19 contacts →
	Exact match “At CT Eco Plus, we deliver trusted, fully turnkey energy efficiency and retrofit solutions across the UK.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
14	Energy Oasis	Exact match	Harrogate, United KingdomHQ recorded Oct 25, 2026	11-50	19 contacts →
	Exact match “Merging energy efficiency and renewable energy technologies to drive cost savings and combat climate change.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
15	Smart Energy Homes	Exact match	Cardiff, United KingdomHQ recorded Oct 25, 2026	51-200	19 contacts →
	Exact match “Making your home more energy efficient the smart way!” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
16	Making Energy Greener	Exact match	Southport, United KingdomHQ recorded Oct 25, 2026	51-200	18 contacts →
	Exact match “With over 20 years of experience in the energy services sector, Making Energy Greener are committed to transforming our community's homes with innovative energy-saving products…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
17	Energy Gain UK	Exact match	Trafford Park, United KingdomHQ recorded Oct 25, 2026	11-50	17 contacts →
	Exact match “Energy Gain UK consults, designs, executes, maintains and arranges funding for energy efficiency projects within the UK and global marketplace.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
18	Furbnow	Exact match	Birmingham, United KingdomHQ recorded Oct 25, 2026	11-50	16 contacts →
	Exact match “Furbnow is the complete solution for planning and delivering home energy projects.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
19	Surefire Management Services	Exact match	Bletchley, United KingdomHQ recorded Oct 25, 2026	1-10	16 contacts →
	Exact match “SMS procurement services are designed to bring genuine efficiencies to your work programmes without sacrificing the level of choice and compliance you expect.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
20	EEC Energy Efficiency Consultants	Exact match	Coventry, United KingdomHQ recorded Oct 25, 2026	11-50	14 contacts →
	Exact match “With over 14 years’ working in the industry, EEC has a proven track record that has established the business as one of the UK's leading Energy Assessment provider.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
21	ECO Target	Exact match	Barking And Dagenham, United KingdomHQ recorded Oct 25, 2026	11-50	14 contacts →
	Exact match “Welcome to Eco Target – we are energy specialists based in London and our aim is to help our customers save money on energy bills and reduce carbon footprint.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
22	RMS Energy Solutions	Exact match	Coventry, United KingdomHQ recorded Oct 25, 2026	11-50	14 contacts →
	Exact match “Providing domestic energy efficiency solutions to save our customers money and save the environment.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
23	DJB Installs	Exact match	Doncaster, United KingdomHQ recorded Oct 25, 2026	11-50	13 contacts →
	Exact match “We are a highly skilled, independent installation company based in Doncaster, South Yorkshire.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
24	LCS Energy LTD	Exact match	Kimbolton, United KingdomHQ recorded Oct 25, 2026	11-50	13 contacts →
	Exact match “At LCS Energy, we support your business with energy efficient solutions, providing you with a sustainable future and reducing your carbon impact on the environment.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
25	Euro Energy Group	Exact match	Accrington, United KingdomHQ recorded Oct 25, 2026	11-50	13 contacts →
	Exact match “From our humble beginnings in the heart of Lancashire, to becoming one of the UK’s most trusted retrofit advisors and installers, we are fully licensed, accredited and meet all…” Recorded in the RevenueBase company graph · Oct 25, 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 “energy efficiency program implementation 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 379 energy efficiency program implementation services based in the United Kingdom

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Energy efficiency program implementation services based in the United Kingdom at a glance

As of Oct 25, 2026

29.6%Verified-email coverage

30.8Average contacts per company

1-10Median size (employees)

14.5%Largest-city concentration · London

Oct 25, 2026Page data refreshed

Companies by employee count

1-10

228

11-50

123

51-200

201-500

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 379 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 “energy efficiency program implementation 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 3,449 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 October 25, 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.

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 “energy efficiency program implementation services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many energy efficiency program implementation services are there based in the United Kingdom?

RevenueBase identified 379 company matches for energy efficiency program implementation services associated with the United Kingdom as of October 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?

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

Which city has the most energy efficiency program implementation services?

London leads with 55 company records, followed by Manchester (15) and Bristol (7).

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 3,449 professional contacts with verified work emails tracked across these 379 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 October 25, 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.