Company lists · Data refreshed September 2026

Top 25 Industrial energy services based in the United Kingdom

Name: Industrial energy services based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 637 companies tracked

RevenueBase identified 637 industrial energy services headquartered in the United Kingdom as of September 2026 and tracks 27,165 professional contacts across them, including 8,892 with verified work emails. London is the largest hub.

This list covers industrial energy services 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 17, 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 17, 2026 86% judged on-target in blind review

637Companies

27,165Contacts tracked

8,892Verified emails

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The 25 largest industrial energy services based in the United Kingdom

Ranked by team size

Top 25 of 637 industrial energy services based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to industrial energy services: 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 17, 2026	10001+	9,238 contacts →
	Indirect evidence “Taking care of things.” Source: RevenueBase Database · checked Sep 17, 2026
2	Centrica	Partial evidence	Windsor, United KingdomHQ checked Sep 17, 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 17, 2026
3	Shell Energy	Partial evidence	London, United KingdomHQ checked Sep 17, 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 17, 2026
4	Dalkia UK	Partial evidence	London, United KingdomHQ checked Sep 17, 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 17, 2026
5	Northern GAS And Power	Partial evidence	Gateshead, United KingdomHQ checked Sep 17, 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 17, 2026
6	EIC Partnership	Partial evidence	Redditch, United KingdomHQ checked Sep 17, 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 17, 2026
7	YU Energy	Partial evidence	Nottingham, United KingdomHQ checked Sep 17, 2026	51-200	273 contacts →
	Partial evidence “Yü Energy was built with a mission to shake up the UK business energy market, offering businesses innovative energy solutions that help save time and money.” Source: RevenueBase Database · checked Sep 17, 2026
8	E.On Control Solutions LTD	Partial evidence	Bury, United KingdomHQ checked Sep 17, 2026	201-500	206 contacts →
	Partial 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 17, 2026
9	CFP Energy	Strong evidence	London, United KingdomHQ checked Sep 17, 2026	201-500	171 contacts →
	Strong evidence “CFP Energy is a leading provider of energy and environmental solutions for industrial and commercial clients.” Source: RevenueBase Database · checked Sep 17, 2026
10	Optimised	Partial evidence	Bristol, United KingdomHQ checked Sep 17, 2026	51-200	142 contacts →
	Partial 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 17, 2026
11	Mitie Energy	Partial evidence	London, United KingdomHQ checked Sep 17, 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 17, 2026
12	AMBER	Partial evidence	Cardiff, United KingdomHQ checked Sep 17, 2026	51-200	124 contacts →
	Partial evidence “We are an award-winning energy consultancy and certified B Corp™.” Source: RevenueBase Database · checked Sep 17, 2026
13	Alderley	Partial evidence	Wotton-under-edge, United KingdomHQ checked Sep 17, 2026	201-500	123 contacts →
	Partial evidence “Alderley is the integrated solutions provider for the global energy industry.” Source: RevenueBase Database · checked Sep 17, 2026
14	ZTP	Indirect evidence	London, United KingdomHQ checked Sep 17, 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 17, 2026
15	TROO	Partial evidence	Doxford International Business Park, United KingdomHQ checked Sep 17, 2026	51-200	106 contacts →
	Partial evidence “Managing business energy can be overwhelming.” Source: RevenueBase Database · checked Sep 17, 2026
16	Eenergy	Partial evidence	London, United KingdomHQ checked Sep 17, 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 17, 2026
17	best.energy	Strong evidence	London, United KingdomHQ checked Sep 17, 2026	51-200	97 contacts →
	Strong 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 17, 2026
18	Haven Power	Indirect evidence	Ipswich, United KingdomHQ checked Sep 17, 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 17, 2026
19	Byworth Boilers Limited	Partial evidence	Keighley, United KingdomHQ checked Sep 17, 2026	51-200	96 contacts →
	Partial evidence “Your industrial boiler is at the heart of your operations.” Source: RevenueBase Database · checked Sep 17, 2026
20	Laser Energy	Partial evidence	West Malling, United KingdomHQ checked Sep 17, 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 17, 2026
21	Spirax Sarco UK And Ireland	Indirect evidence	Cheltenham, United KingdomHQ checked Sep 17, 2026	1,001-5,000	92 contacts →
	Indirect evidence “Why are we here?” Source: RevenueBase Database · checked Sep 17, 2026
22	The Green Energy Advice Bureau	Partial evidence	Sunderland, United KingdomHQ checked Sep 17, 2026	51-200	90 contacts →
	Partial evidence “The Green Energy Advice Bureau are a leading independent award-winning UK commercial energy consultancy.” Source: RevenueBase Database · checked Sep 17, 2026
23	PJD Mechanical Engineering	Partial evidence	Doncaster, United KingdomHQ checked Sep 17, 2026	51-200	86 contacts →
	Partial evidence “PJD Mechanical Engineering Ltd Ltd has worked with a number of leading clients, operators and technology companies throughout the UK energy sector for over 30 years.” Source: RevenueBase Database · checked Sep 17, 2026
24	Direct Business Solutions	Partial evidence	Houghton Le Spring, United KingdomHQ checked Sep 17, 2026	51-200	67 contacts →
	Partial evidence “As one of the largest energy consultancies in the UK, Direct Business Solutions can take the hassle out of business utilities with comprehensive utility management services.” Source: RevenueBase Database · checked Sep 17, 2026
25	ECO Logic Partners	Partial evidence	Team Valley, United KingdomHQ checked Sep 17, 2026	11-50	66 contacts →
	Partial evidence “We bring good energy to the table to help you save yours.” Source: RevenueBase Database · checked Sep 17, 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: industrial energy services. 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 industrial energy services.
Partial evidence: Its own public description names part of industrial energy services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial energy services. 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 637 industrial energy services based in the United Kingdom

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Industrial energy services based in the United Kingdom at a glance

As of Sep 17, 2026

32.7%Verified-email coverage

42.6Average contacts per company

1-10Median size (employees)

12.4%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

345

11-50

212

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 637 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 industrial energy services, 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 “industrial energy services”. 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 industrial energy services), 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 industrial energy services, 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, 8,892 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 17, 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.

Industrial energy services by metro

Industrial energy services in London79

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 industrial energy services, 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 industrial energy services are there based in the United Kingdom?

RevenueBase identified 637 industrial energy services 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 industrial energy services?

London leads with 79 headquartered companies, followed by Manchester (19) and Bristol (11).

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 8,892 verified decision-maker contacts tracked across these 637 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 17, 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.