Company lists · Data refreshed October 2026

Top 25 Energy efficiency investors based in the United Kingdom

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

Compiled by the RevenueBase Data Team Data refreshed Oct 12, 2026 124 companies tracked

RevenueBase identified 124 company matches for energy efficiency investors associated with the United Kingdom as of October 2026 and tracks 704 professional contacts across them, including 235 with verified work emails. London is the largest hub.

This list covers company matches for energy efficiency investors 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 12, 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 12, 2026 How this list was built

124Companies

704Contacts tracked

235Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest energy efficiency investors based in the United Kingdom

Ranked by team size

Top 25 of 124 company matches for energy efficiency investors based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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	Energy Drive	Exact match	London, United KingdomHQ recorded Oct 12, 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 12, 2026 · View company records in RevenueBase
2	On-Site Energy LTD	Exact match	Liverpool, United KingdomHQ recorded Oct 12, 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 12, 2026 · View company records in RevenueBase
3	Effective Energy Group	Exact match	Worksop, United KingdomHQ recorded Oct 12, 2026	11-50	24 contacts →
	Exact match “Through efficient energy improvements, installations, and innovations, the Effective Energy Group Ltd.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4	Making Energy Greener	Exact match	Southport, United KingdomHQ recorded Oct 12, 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 12, 2026 · View company records in RevenueBase
5	Horizon Energy Infrastructure	Exact match	Salisbury, United KingdomHQ recorded Oct 12, 2026	11-50	18 contacts →
	Exact match “Using our experience, expertise and culture of innovation we deliver tailored funding and partnership solutions to our customers.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6	Energy Gain UK	Exact match	Trafford Park, United KingdomHQ recorded Oct 12, 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 12, 2026 · View company records in RevenueBase
7	Furbnow	Exact match	Birmingham, United KingdomHQ recorded Oct 12, 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 12, 2026 · View company records in RevenueBase
8	ECO Target	Exact match	Barking And Dagenham, United KingdomHQ recorded Oct 12, 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 12, 2026 · View company records in RevenueBase
9	Zerogram	Exact match	London, United KingdomHQ recorded Oct 12, 2026	1-10	14 contacts →
	Exact match “Zerogram is on a mission to make net zero not just possible, but practical.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10	RMS Energy Solutions	Exact match	Coventry, United KingdomHQ recorded Oct 12, 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 12, 2026 · View company records in RevenueBase
11	Carbon Architecture	Exact match	Hampton Hill, United KingdomHQ recorded Oct 12, 2026	11-50	12 contacts →
	Exact match “Carbon Architecture has spent the last twelve years helping energy intensive organisations optimise their processes.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
12	Asteros Advisers	Exact match	London, United KingdomHQ recorded Oct 12, 2026	11-50	11 contacts →
	Exact match “Asteros Advisers is a specialist infrastructure advisory company, with experience supporting clean energy projects from inception to the end of procurement.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13	Zing Energy	Exact match	Cardiff, United KingdomHQ recorded Oct 12, 2026	11-50	11 contacts →
	Exact match “Zing Energy exists to help UK homes and businesses become more energy-efficient.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14	Simply ECO LTD	Exact match	Birmingham, United KingdomHQ recorded Oct 12, 2026	11-50	11 contacts →
	Exact match “Simply Eco Ltd was established to assist people to gain access to Carbon Saving and Efficiency Measures under the government Energy Company Obligation (ECO) and Green Deal Schemes.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15	EPC	Exact match	Chelmsford, United KingdomHQ recorded Oct 12, 2026	11-50	10 contacts →
	Exact match “Here at EPC Improvements we specialise in the design, supply and installation of energy saving solutions to help our customers reduce their energy bills and carbon footprint.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16	Tallarna	Exact match	London, United KingdomHQ recorded Oct 12, 2026	11-50	9 contacts →
	Exact match “Tallarna is a climate tech and finance platform for sustainable impact.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
17	EEH Solutions	Exact match	Harlow, United KingdomHQ recorded Oct 12, 2026	11-50	9 contacts →
	Exact match “Eco Efficient Home Solutions (EEH Solutions) is a trusted provider of energy efficiency and retrofit services, specializing in sustainable solutions that meet the highest industry…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
18	Carbon Saving Group	Exact match	Plymouth, United KingdomHQ recorded Oct 12, 2026	11-50	9 contacts →
	Exact match “Carbon Saving Group provide energy efficient systems to homes and businesses in Devon and Cornwall, helping customers to lower their carbon emissions and save on energy bills.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19	BSSEC	Exact match	Westbury, United KingdomHQ recorded Oct 12, 2026	1-10	9 contacts →
	Exact match “BSSEC are commercial energy efficiency consultants.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20	Green World Solutions	Exact match	Manchester, United KingdomHQ recorded Oct 12, 2026	1-10	7 contacts →
	Exact match “At Green World Solutions our AIM (Audit, Identify, Monitor) is to deliver the most cost effective energy efficiency solutions for your business, with the highest potential returns…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21	Climate Integrated Solutions LTD	Exact match	Croydon, United KingdomHQ recorded Oct 12, 2026	1-10	7 contacts →
	Exact match “Climate Integrated Solutions Ltd have in-house consulting, design and professional project management allowing us to offer a unique turn key solution for clients from a broad…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22	Business Innovation Group	Exact match	Essex, United KingdomHQ recorded Oct 12, 2026	1-10	6 contacts →
	Exact match “At the Business Innovation Group, we help ambitious businesses unlock the funding and investment they need to grow, innovate, and scale.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23	Green Peninsula CO LTD	Exact match	Helston, United KingdomHQ recorded Oct 12, 2026	11-50	6 contacts →
	Exact match “21st century global business faces many challenges.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24	CSR Sustain	Exact match	Bury, United KingdomHQ recorded Oct 12, 2026	11-50	6 contacts →
	Exact match “CSR Sustain provide a comprehensive suite of energy auditing services to optimise asset and operational performance in properties – increasing their asset value, helping…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25	Econest	Exact match	London, United KingdomHQ recorded Oct 12, 2026	1-10	6 contacts →
	Exact match “Econest is an AI-enabled asset manager that sources and purchases energy inefficient properties to retrofit and manage at scale for large investment portfolios.” Recorded in the RevenueBase company graph · Oct 12, 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 investors”. 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 124 energy efficiency investors based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 235 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Energy efficiency investors based in the United Kingdom at a glance

As of Oct 12, 2026

33.4%Verified-email coverage

5.7Average contacts per company

1-10Median size (employees)

22.6%Largest-city concentration · London

Oct 12, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

1,001-5,000

5,001-10,000

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 124 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 investors” 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 235 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 12, 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.

Energy efficiency investors by metro

Energy efficiency investors in London28

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 investors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many energy efficiency investors are there based in the United Kingdom?

RevenueBase identified 124 company matches for energy efficiency investors 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?

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

Which city has the most energy efficiency investors?

London leads with 28 company records, followed by Manchester (7) and Liverpool (4).

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 235 professional contacts with verified work emails tracked across these 124 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 12, 2026.

Ready to reach these companies? Verified emails and direct dials for all 124 energy efficiency investors based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Energy efficiency investors by geography

Browse the directory

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.