Company lists · Data refreshed October 2026

Top 25 Energy savings engineering services based in the United Kingdom

Name: Energy savings engineering 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 530 companies tracked

RevenueBase identified 530 company matches for energy savings engineering services associated with the United Kingdom as of October 2026 and tracks 13,263 professional contacts across them, including 4,194 with verified work emails. London is the largest hub.

This list covers company matches for energy savings engineering 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

530Companies

13,263Contacts tracked

4,194Verified emails

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

The 25 largest energy savings engineering services based in the United Kingdom

Ranked by team size

Top 25 of 530 company matches for energy savings engineering 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	Optimised	Exact match	Bristol, United KingdomHQ recorded Oct 25, 2026	51-200	131 contacts →
	Exact match “Optimised exists to accelerate the shift to a low-carbon future by making energy management work; commercially, operationally and sustainably.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
3	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
4	Team Energy Auditing Agency LTD	Exact match	Milton Keynes, United KingdomHQ recorded Oct 25, 2026	51-200	70 contacts →
	Exact match “TEAM is the UK’s leading supplier of carbon and energy management solutions committed to driving the efficiency and sustainability of energy consumption and environmental…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
5	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
6	RYBKA	Exact match	Edinburgh, United KingdomHQ recorded Oct 25, 2026	51-200	62 contacts →
	Exact match “Rybka is a leading Building Services Engineering, Low Carbon and Sustainability Consultancy with a wide geographical spread and a focus on providing commercially viable, energy…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
7	RSP Consulting Engineers	Exact match	Edinburgh, United KingdomHQ recorded Oct 25, 2026	51-200	59 contacts →
	Exact match “RSP Consulting Engineers LLP are leaders in sustainable and low energy building services design.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
8	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
9	Businesswise Solutions	Exact match	Nelson, United KingdomHQ recorded Oct 25, 2026	11-50	56 contacts →
	Exact match “We’re an energy management consultancy specialising in supporting energy-intensive businesses with energy procurement, energy management, and sustainability challenges.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
10	ECBS	Exact match	Hebburn, United KingdomHQ recorded Oct 25, 2026	51-200	54 contacts →
	Exact match “At ECBS we specialise in working with customers to significantly reduce their business utility costs and make the necessary steps towards a greener future.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
11	Powercor LTD	Exact match	Weybridge, United KingdomHQ recorded Oct 25, 2026	51-200	52 contacts →
	Exact match “Since 1998, Powercor have specialised in every aspect of electrical engineering.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
12	Carbonxgen Limited	Exact match	Sandhurst, United KingdomHQ recorded Oct 25, 2026	11-50	49 contacts →
	Exact match “Carbonxgen is a leading consultancy that specialises in solving complex energy and sustainability challenges.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
13	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
14	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
15	Fusion For Business	Exact match	Durham, United KingdomHQ recorded Oct 25, 2026	51-200	44 contacts →
	Exact match “At Fusion For Business, we believe in the value of genuine human connection - people doing business with people they trust.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
16	Everun	Exact match	Belfast, United KingdomHQ recorded Oct 25, 2026	11-50	42 contacts →
	Exact match “As the world is becoming much more energy conscious, businesses everywhere are turning to more sustainable models of energy usage.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
17	Brownlow Utilities	Exact match	Newton-le-willows., United KingdomHQ recorded Oct 25, 2026	11-50	41 contacts →
	Exact match “Brownlow Utilities - the energy and sustainability expert!” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
18	T2o Engineers	Exact match	Newcastle Upon Tyne, United KingdomHQ recorded Oct 25, 2026	11-50	41 contacts →
	Exact match “t2o Engineers are a specialist Mechanical, Electrical and Public Health Consultancy with offices in the UK, UAE and the Sultanate of Oman.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
19	SVM Associates	Exact match	Birmingham, United KingdomHQ recorded Oct 25, 2026	11-50	40 contacts →
	Exact match “If you need a professional consultancy to assist you with your building engineering services needs, then SVM Associates can help.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
20	Evotech Technical Services	Exact match	Elland, United KingdomHQ recorded Oct 25, 2026	51-200	36 contacts →
	Exact match “Evotech Technical Services delivers smarter, more sustainable buildings through innovative M&E solutions, expert engineering, and data-driven performance - helping clients reduce…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
21	Greenlite Group	Exact match	Blackpool, United KingdomHQ recorded Oct 25, 2026	51-200	34 contacts →
	Exact match “We deliver market leading efficient lighting, electrical and energy solutions to businesses across the UK.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
22	CAD 21 LTD	Exact match	Newcastle Upon Tyne, United KingdomHQ recorded Oct 25, 2026	11-50	33 contacts →
	Exact match “CAD 21 are professional design consultants in the field of Building Services Engnerring encompassing the following specialist areas: Air Conditioning Domestic Water Services Power…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
23	FLATT	Exact match	Caterham, United KingdomHQ recorded Oct 25, 2026	51-200	30 contacts →
	Exact match “Our founder, Simon Flatt, started the practice in 2003 to provide sustainable engineering solutions of the highest quality and standard.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
24	Emissis	Exact match	Stokesley, United KingdomHQ recorded Oct 25, 2026	51-200	29 contacts →
	Exact match “Engineering energy efficiency that pays off.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
25	Engineering Power Solutions LTD - EPS	Exact match	Stockton-on-tees, United KingdomHQ recorded Oct 25, 2026	11-50	26 contacts →
	Exact match “Engineering Power Solutions, EPS, is an independent electrical engineering consultancy headquartered in Stockton-on-Tees.” 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 savings engineering 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 530 energy savings engineering services based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 4,194 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Energy savings engineering services based in the United Kingdom at a glance

As of Oct 25, 2026

31.6%Verified-email coverage

25.0Average contacts per company

1-10Median size (employees)

11.5%Largest-city concentration · London

Oct 25, 2026Page data refreshed

Companies by employee count

1-10

325

11-50

170

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 530 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 savings engineering 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 4,194 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.

Energy savings engineering services by metro

Energy savings engineering services in London61

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

How many energy savings engineering services are there based in the United Kingdom?

RevenueBase identified 530 company matches for energy savings engineering 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 savings engineering services?

London leads with 61 company records, followed by Manchester (17) and Bristol (8).

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 4,194 professional contacts with verified work emails tracked across these 530 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.

Ready to reach these companies? Verified emails and direct dials for all 530 energy savings engineering services based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Energy savings engineering services 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.