Company lists · Data refreshed September 2026

Top 25 Building energy management companies based in the United Kingdom

Name: Building energy management companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 831 companies tracked

RevenueBase identified 831 building energy management companies headquartered in the United Kingdom as of September 2026 and tracks 28,078 professional contacts across them, including 9,941 with verified work emails. London is the largest hub.

This list covers building energy management companies headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 16, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 16, 2026 86% judged on-target in blind review

831Companies

28,078Contacts tracked

9,941Verified emails

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The 25 largest building energy management companies based in the United Kingdom

Ranked by team size

Top 25 of 831 building energy management companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to building energy management companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	British GAS	Indirect evidence	Windsor, United KingdomHQ checked Sep 16, 2026	10001+	9,238 contacts →
	Indirect evidence “Taking care of things.” Source: RevenueBase Database · checked Sep 16, 2026
2	Centrica	Partial evidence	Windsor, United KingdomHQ checked Sep 16, 2026	10001+	4,555 contacts →
	Partial evidence “Centrica is an international energy services and solutions company, founded on a 200-year heritage of serving customers in homes and businesses.” Source: RevenueBase Database · checked Sep 16, 2026
3	Shell Energy	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	1,001-5,000	2,627 contacts →
	Partial evidence “We help businesses manage energy needs, boost efficiency, control costs and achieve decarbonisation goals for a better energy future.” Source: RevenueBase Database · checked Sep 16, 2026
4	Vital Energi Utilities Limited	Indirect evidence	Blackburn, United KingdomHQ checked Sep 16, 2026	501-1,000	709 contacts →
	Indirect evidence “Our 30+ years’ experience have involved us in the creation of major UK district heating networks in areas such as Sheffield, Nottingham and London.” Source: RevenueBase Database · checked Sep 16, 2026
5	KBC A Yokogawa Company	Indirect evidence	Walton-on-thames, United KingdomHQ checked Sep 16, 2026	201-500	658 contacts →
	Indirect evidence “We are passionate about driving sustainable change for our planet.” Source: RevenueBase Database · checked Sep 16, 2026
6	Kaluza	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	501-1,000	595 contacts →
	Partial evidence “Kaluza is the Energy Intelligence Platform, turning energy complexity into seamless coordination.” Source: RevenueBase Database · checked Sep 16, 2026
7	Northern GAS And Power	Partial evidence	Gateshead, United KingdomHQ checked Sep 16, 2026	501-1,000	509 contacts →
	Partial evidence “As leaders in our field, we’re trusted by over businesses to provide a full energy service.” Source: RevenueBase Database · checked Sep 16, 2026
8	BMSI	Strong evidence	Maidenhead, United KingdomHQ checked Sep 16, 2026	201-500	218 contacts →
	Strong evidence “BMSI is the UK’s largest & leading Independent systems integrator of Building Energy Management Systems (BEMS).” Source: RevenueBase Database · checked Sep 16, 2026
9	E.On Control Solutions LTD	Strong evidence	Bury, United KingdomHQ checked Sep 16, 2026	201-500	206 contacts →
	Strong evidence “Who we are » The UK’s leading Energy Management company » Our aim is to increase energy performance within buildings » Deliver energy projects to maximise customer return on…” Source: RevenueBase Database · checked Sep 16, 2026
10	Learnd	Strong evidence	Manchester, United KingdomHQ checked Sep 16, 2026	201-500	196 contacts →
	Strong evidence “learnd was founded in 2020 to disrupt the way buildings operate by providing energy and cost savings at scale - we call this the Power of Many.” Source: RevenueBase Database · checked Sep 16, 2026
11	Abec LTD	Strong evidence	Tewkesbury, United KingdomHQ checked Sep 16, 2026	51-200	175 contacts →
	Strong evidence “ABEC is one of the leading independent Building Management System (BMS) and Electrical Power Monitoring System (EPMS) specialists.” Source: RevenueBase Database · checked Sep 16, 2026
12	CFP Energy	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	201-500	171 contacts →
	Partial evidence “CFP Energy is a leading provider of energy and environmental solutions for industrial and commercial clients.” Source: RevenueBase Database · checked Sep 16, 2026
13	Optimised	Strong evidence	Bristol, United KingdomHQ checked Sep 16, 2026	51-200	142 contacts →
	Strong evidence “Optimised exists to accelerate the shift to a low-carbon future by making energy management work; commercially, operationally and sustainably.” Source: RevenueBase Database · checked Sep 16, 2026
14	Smith & Byford	Partial evidence	Cheam, United KingdomHQ checked Sep 16, 2026	201-500	132 contacts →
	Partial evidence “Smith & Byford is a family-owned and operated building services company.” Source: RevenueBase Database · checked Sep 16, 2026
15	Mitie Energy	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	51-200	125 contacts →
	Partial evidence “Mitie Energy are an award-winning, UK-based energy, utilities and sustainability solutions business.” Source: RevenueBase Database · checked Sep 16, 2026
16	Trend Control Systems	Strong evidence	Horsham, United KingdomHQ checked Sep 16, 2026	501-1,000	113 contacts →
	Strong evidence “Trend is one of the world's leading Building Energy Management Systems manufacturers, with a worldwide distribution and support network covering over 50 countries.” Source: RevenueBase Database · checked Sep 16, 2026
17	TROO	Partial evidence	Doxford International Business Park, United KingdomHQ checked Sep 16, 2026	51-200	106 contacts →
	Partial evidence “Managing business energy can be overwhelming.” Source: RevenueBase Database · checked Sep 16, 2026
18	Eenergy	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	51-200	98 contacts →
	Partial evidence “eEnergy (AIM: EAAS) is a UK-based Energy-as-a-Service (EaaS) provider, funding and delivering energy-saving and energy-generating solutions across multi-site public sector and…” Source: RevenueBase Database · checked Sep 16, 2026
19	best.energy	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	51-200	97 contacts →
	Partial evidence “Best.Energy is a UK based company specialising in the measurement, control and reduction of energy consumption and costs within the industrial, commercial and public sectors.” Source: RevenueBase Database · checked Sep 16, 2026
20	Laser Energy	Partial evidence	West Malling, United KingdomHQ checked Sep 16, 2026	51-200	93 contacts →
	Partial evidence “At LASER Energy, part of the Commercial Services Group Energy & Environment portfolio, a wholly-owned business unit of Kent County Council, we help public sector organisations…” Source: RevenueBase Database · checked Sep 16, 2026
21	Ignite Energy	Partial evidence	Wantage, United KingdomHQ checked Sep 16, 2026	51-200	88 contacts →
	Partial evidence “Ignite is dedicated to providing large UK multi-site energy users with a full suite of sustainability services.” Source: RevenueBase Database · checked Sep 16, 2026
22	3mse LTD	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	51-200	74 contacts →
	Strong evidence “3MSe Ltd are an experienced provider of turnkey Building Management Systems.” Source: RevenueBase Database · checked Sep 16, 2026
23	Team Energy Auditing Agency LTD	Strong evidence	Milton Keynes, United KingdomHQ checked Sep 16, 2026	51-200	69 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
24	Total Control	Indirect evidence	Tunbridge Wells, United KingdomHQ checked Sep 16, 2026	51-200	68 contacts →
	Indirect evidence “We deliver intelligent, integrated and innovative BMS solutions through our superior customer service, approach and expertise.” Source: RevenueBase Database · checked Sep 16, 2026
25	ECO Approach	Indirect evidence	Beckenham, United KingdomHQ checked Sep 16, 2026	51-200	67 contacts →
	Indirect evidence “We’re a leading nationwide property services company established in 2013.” Source: RevenueBase Database · checked Sep 16, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: building energy management companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names building energy management companies.
Partial evidence: Its own public description names part of building energy management companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name building energy management companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 831 building energy management companies based in the United Kingdom

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Building energy management companies based in the United Kingdom at a glance

As of Sep 16, 2026

35.4%Verified-email coverage

33.8Average contacts per company

1-10Median size (employees)

15.4%Largest-city concentration · London

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

426

11-50

294

51-200

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 831 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among building energy management companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United Kingdom whose own description of what they do matches “building energy management companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names building energy management companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among building energy management companies, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 9,941 across the full list. 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 September 16, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Building energy management companies by metro

Building energy management companies in London128
Building energy management companies in Manchester26

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names building energy management companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many building energy management companies are there based in the United Kingdom?

RevenueBase identified 831 building energy management companies headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

British GAS, headquartered in Windsor, tops this list with the largest team on record.

Which city has the most building energy management companies?

London leads with 128 headquartered companies, followed by Manchester (26) and Bristol (15).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 9,941 verified decision-maker contacts tracked across these 831 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 16, 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 Smart Search, 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.