Company lists · Data refreshed September 2026

Top 25 Facilities energy management consultants based in the United Kingdom

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 982 companies tracked

RevenueBase identified 982 facilities energy management consultants headquartered in the United Kingdom as of September 2026 and tracks 25,171 professional contacts across them, including 9,337 with verified work emails. London is the largest hub.

This list covers facilities energy management consultants 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 28, 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 28, 2026 86% judged on-target in blind review

982Companies

25,171Contacts tracked

9,337Verified emails

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The 25 largest facilities energy management consultants based in the United Kingdom

Ranked by team size

Top 25 of 982 facilities energy management consultants based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to facilities energy management consultants: 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 28, 2026	10001+	9,238 contacts →
	Indirect evidence “Taking care of things.” Source: RevenueBase Database · checked Sep 28, 2026
2	Shell Energy	Partial evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
3	Dalkia UK	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	5,001-10,000	1,064 contacts →
	Partial evidence “Together, we’re delivering technical solutions for a better society and an Electric Britain Dalkia is one of the UK’s leading technical and energy services providers at the…” Source: RevenueBase Database · checked Sep 28, 2026
4	Penspen	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	1,007 contacts →
	Partial evidence “Penspen designs, maintains, and optimises energy infrastructure to improve access to secure and sustainable energy for communities worldwide.” Source: RevenueBase Database · checked Sep 28, 2026
5	Emcor UK	Strong evidence	Surrey, United KingdomHQ checked Sep 28, 2026	1,001-5,000	909 contacts →
	Strong evidence “At EMCOR UK, we revolutionise facilities management by combining our unique engineering heritage and innovation capability.” Source: RevenueBase Database · checked Sep 28, 2026
6	EIC Partnership	Partial evidence	Redditch, United KingdomHQ checked Sep 28, 2026	51-200	316 contacts →
	Partial evidence “EIC Partnership: A Legacy of Expertise, A Commitment to Sustainability With origins dating back to 1975, EIC has cultivated nearly 50 years of distinguished service in energy and…” Source: RevenueBase Database · checked Sep 28, 2026
7	E.On Control Solutions LTD	Strong evidence	Bury, United KingdomHQ checked Sep 28, 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 28, 2026
8	CFP Energy	Partial evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
9	Consultiv Utilities	Partial evidence	Hebburn, United KingdomHQ checked Sep 28, 2026	201-500	159 contacts →
	Partial evidence “At Consultiv Utilities, we help organisations to take control of their energy strategy and support them in navigating the complexities of energy, with confidence.” Source: RevenueBase Database · checked Sep 28, 2026
10	Artic Building Services	Strong evidence	Dartford, United KingdomHQ checked Sep 28, 2026	201-500	145 contacts →
	Strong evidence “Delivering bespoke Facilities Management services for over 25 years.” Source: RevenueBase Database · checked Sep 28, 2026
11	Optimised	Strong evidence	Bristol, United KingdomHQ checked Sep 28, 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 28, 2026
12	Consultus	Strong evidence	Leicester, United KingdomHQ checked Sep 28, 2026	51-200	129 contacts →
	Strong evidence “Recognised as the Consultancy of the Year in 2021 by Energy Live News, Consultus delivers world-class consulting, buying and management services for Business Energy and Business…” Source: RevenueBase Database · checked Sep 28, 2026
13	Mitie Energy	Partial evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
14	AMBER	Strong evidence	Cardiff, United KingdomHQ checked Sep 28, 2026	51-200	124 contacts →
	Strong evidence “We are an award-winning energy consultancy and certified B Corp™.” Source: RevenueBase Database · checked Sep 28, 2026
15	ZTP	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	115 contacts →
	Indirect evidence “At ZTP, we’re committed to accelerating the transition to a more sustainable future by reducing the negative impact of human activity on our planet - ecologically, financially…” Source: RevenueBase Database · checked Sep 28, 2026
16	Longevity Partners	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	115 contacts →
	Strong evidence “Longevity Partners is a multidisciplinary energy and sustainability consultancy.” Source: RevenueBase Database · checked Sep 28, 2026
17	Corrigenda	Strong evidence	Fareham, United KingdomHQ checked Sep 28, 2026	51-200	111 contacts →
	Strong evidence “The Corrigenda team provides a national and regional Specialist Integrated Facilities Service to our clients, alongside the asset management, energy management, capital projects…” Source: RevenueBase Database · checked Sep 28, 2026
18	TROO	Partial evidence	Doxford International Business Park, United KingdomHQ checked Sep 28, 2026	51-200	106 contacts →
	Partial evidence “Managing business energy can be overwhelming.” Source: RevenueBase Database · checked Sep 28, 2026
19	Haven Power	Indirect evidence	Ipswich, United KingdomHQ checked Sep 28, 2026	201-500	97 contacts →
	Indirect evidence “Haven Power is rebranding as Drax and we’ll soon be retiring this account.” Source: RevenueBase Database · checked Sep 28, 2026
20	Katoni Engineering	Partial evidence	Aberdeen, United KingdomHQ checked Sep 28, 2026	51-200	90 contacts →
	Partial evidence “Katoni provides consulting, engineering, optimisation and emissions reduction support for the Energy Sector.” Source: RevenueBase Database · checked Sep 28, 2026
21	The Green Energy Advice Bureau	Strong evidence	Sunderland, United KingdomHQ checked Sep 28, 2026	51-200	90 contacts →
	Strong evidence “The Green Energy Advice Bureau are a leading independent award-winning UK commercial energy consultancy.” Source: RevenueBase Database · checked Sep 28, 2026
22	Sustainable Advantage	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	89 contacts →
	Indirect evidence “Sustainable Advantage partners with Private Equity funds and businesses across the UK, France, and wider Europe.” Source: RevenueBase Database · checked Sep 28, 2026
23	Ignite Energy	Partial evidence	Wantage, United KingdomHQ checked Sep 28, 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 28, 2026
24	Alfa Energy An Edison Energy Company	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	88 contacts →
	Strong evidence “Alfa Energy Group (an Edison Energy company) is an international energy, sustainability and technology consultant partner with 200 employees over four international locations.” Source: RevenueBase Database · checked Sep 28, 2026
25	clearvue.business	Partial evidence	Gateshead, United KingdomHQ checked Sep 28, 2026	51-200	81 contacts →
	Partial evidence “We enable businesses to succeed in the environmental components of their ESG strategies through comprehensive net zero consulting services and ground-breaking carbon and energy…” Source: RevenueBase Database · checked Sep 28, 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: facilities energy management consultants. 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 facilities energy management consultants.
Partial evidence: Its own public description names part of facilities energy management consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name facilities energy management consultants. 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 982 facilities energy management consultants based in the United Kingdom

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Facilities energy management consultants based in the United Kingdom at a glance

As of Sep 28, 2026

37.1%Verified-email coverage

25.6Average contacts per company

1-10Median size (employees)

13.7%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

575

11-50

304

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 982 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 facilities energy management consultants, 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 “facilities energy management consultants”. 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 facilities energy management consultants), 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 facilities energy management consultants, 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, 9,337 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 28, 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.

Facilities energy management consultants by metro

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 facilities energy management consultants, 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 facilities energy management consultants are there based in the United Kingdom?

RevenueBase identified 982 facilities energy management consultants 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 facilities energy management consultants?

London leads with 135 headquartered companies, followed by Manchester (29) 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 9,337 verified decision-maker contacts tracked across these 982 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 28, 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.