Company lists · Data refreshed September 2026

Top 25 Energy consulting firms based in the United Kingdom

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

Compiled by the RevenueBase Data Team Data refreshed Sep 2, 2026 1,470 companies tracked

RevenueBase identified 1,470 energy consulting firms headquartered in the United Kingdom as of September 2026 and tracks 71,647 professional contacts across them, including 19,001 with verified work emails and 7,265 with mobile numbers. London is the largest hub.

This list covers energy consulting firms 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 2, 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 RevenueBase Smart Search rating on every row Refreshed Sep 2, 2026 86% judged on-target in blind review

1,470Companies

71,647Contacts tracked

19,001Verified emails

7,265Mobile numbers

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The 25 largest energy consulting firms based in the United Kingdom

Ranked by team size

Top 25 of 1,470 energy consulting firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 2, 2026. RevenueBase Smart Search rates how each company's information relates to energy consulting firms: 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	WOOD	Strong evidence	Aberdeen, United Kingdom	10001+	27,349 contacts →
	Strong evidence “Wood is a global leader in consulting and engineering, delivering critical solutions across energy and materials markets.” Source: RevenueBase Database · checked Sep 2, 2026
2	British GAS	Indirect evidence	Staines, United Kingdom	10001+	9,287 contacts →
	Indirect evidence “Taking care of things.” Source: RevenueBase Database · checked Sep 2, 2026
3	Shell Energy	Partial evidence	London, United Kingdom	1,001-5,000	2,642 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 2, 2026
4	Dalkia UK	Indirect evidence	Staines-Upon-Thames, United Kingdom	1,001-5,000	1,054 contacts →
	Indirect evidence “Together, we’re delivering technical solutions for a better society and a Net Zero UK.” Source: RevenueBase Database · checked Sep 2, 2026
5	Northern GAS And Power	Partial evidence	Gateshead Gateshead Quays, United Kingdom	501-1,000	505 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 2, 2026
6	Fichtner Consulting Engineers LTD	Indirect evidence	Glasgow, United Kingdom	51-200	418 contacts →
	Indirect evidence “Fichtner is one of the world's leading independent engineering consultancy firms.” Source: RevenueBase Database · checked Sep 2, 2026
7	Genesis	Partial evidence	London, United Kingdom	501-1,000	404 contacts →
	Partial evidence “Genesis is a market-leading advisory company focused on providing high-value technical and advisory services for the energy industry.” Source: RevenueBase Database · checked Sep 2, 2026
8	Doris Group	Partial evidence	Great Yarmouth, United Kingdom	501-1,000	360 contacts →
	Partial evidence “DORIS is a leader in the provision of engineering, advisory, and project management services to the energy industry.” Source: RevenueBase Database · checked Sep 2, 2026
9	Avantis	Partial evidence	London, United Kingdom	501-1,000	206 contacts →
	Partial evidence “Avantis Group, based in the UK, is a global leader in energy and transportation.” Source: RevenueBase Database · checked Sep 2, 2026
10	E.On Control Solutions LTD	Partial evidence	United Kingdom	201-500	205 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 2, 2026
11	Peak Wind	Partial evidence	Scotland, United Kingdom	201-500	185 contacts →
	Partial evidence “PEAK Wind is an independent renewable energy specialist in onshore & offshore wind, delivering advisory, intelligence, operations and asset management services for investors…” Source: RevenueBase Database · checked Sep 2, 2026
12	CFP Energy	Partial evidence	London, United Kingdom	201-500	177 contacts →
	Partial evidence “CFP Energy is a leading provider of energy and environmental solutions for industrial and commercial clients.” Source: RevenueBase Database · checked Sep 2, 2026
13	Consultiv Utilities	Strong evidence	Hebburn, United Kingdom	201-500	156 contacts →
	Strong evidence “At Consultiv Utilities we are leading the way with human-guided, tech-empowered energy and utility solutions for businesses of all sizes.” Source: RevenueBase Database · checked Sep 2, 2026
14	LCP Delta	Partial evidence	Edinburgh, United Kingdom	201-500	136 contacts →
	Partial evidence “We help our clients to invest in and navigate the energy transition.” Source: RevenueBase Database · checked Sep 2, 2026
15	Consultus	Strong evidence	Rochford, United Kingdom	51-200	127 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 2, 2026
16	Tritility	Partial evidence	Jarrow, United Kingdom	51-200	122 contacts →
	Partial evidence “Tritility is a UK business energy consultancy helping organisations reduce energy and overhead costs through smarter electricity, gas and water procurement.” Source: RevenueBase Database · checked Sep 2, 2026
17	The Green Energy Advice Bureau	Partial evidence	Sunderland, United Kingdom	51-200	98 contacts →
	Partial evidence “The Green Energy Advice Bureau are a leading independent award-winning UK commercial energy consultancy.” Source: RevenueBase Database · checked Sep 2, 2026
18	Haven Power	Indirect evidence	Ipswich, United Kingdom	201-500	98 contacts →
	Indirect evidence “Haven Power is rebranding as Drax and we’ll soon be retiring this account.” Source: RevenueBase Database · checked Sep 2, 2026
19	Sustainable Advantage	Indirect evidence	London, United Kingdom	51-200	88 contacts →
	Indirect evidence “Sustainable Advantage partners with Private Equity funds and businesses across the UK, France, and wider Europe.” Source: RevenueBase Database · checked Sep 2, 2026
20	Team Energy Auditing Agency LTD	Partial evidence	Milton Keynes, United Kingdom	51-200	70 contacts →
	Partial 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 2, 2026
21	Omnia Projects	Partial evidence	Northallerton, United Kingdom	51-200	67 contacts →
	Partial evidence “Omnia Projects are an Engineering Consultancy providing multidisciplinary expertise for energy projects providing a complete service from feasibility and concept development…” Source: RevenueBase Database · checked Sep 2, 2026
22	Direct Business Solutions	Partial evidence	Houghton Le Spring, United Kingdom	51-200	66 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 2, 2026
23	Cenergist	Partial evidence	Washington, United Kingdom	201-500	63 contacts →
	Partial evidence “Cenergist is a specialist energy and water efficiency company in the UK and Europe.” Source: RevenueBase Database · checked Sep 2, 2026
24	BFY Group	Indirect evidence	Nottingham, United Kingdom	51-200	62 contacts →
	Indirect evidence “BFY Group is one of the UK's Leading Management Consultancies, recognised by the Financial Times.” Source: RevenueBase Database · checked Sep 2, 2026
25	RSP Consulting Engineers	Strong evidence	Aberdeen, United Kingdom	51-200	60 contacts →
	Strong evidence “RSP Consulting Engineers LLP are leaders in sustainable and low energy building services design.” Source: RevenueBase Database · checked Sep 2, 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: energy consulting firms. 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 energy consulting firms.
Partial evidence: Its own public description names part of energy consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy consulting firms. 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 1,470 energy consulting firms based in the United Kingdom

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Energy consulting firms based in the United Kingdom at a glance

As of Sep 2, 2026

26.5%Verified-email coverage

10.1%Mobile-number coverage

48.7Average contacts per company

1-10Median size (employees)

18.6%Largest-city concentration · London

Sep 2, 2026Page data refreshed

Companies by employee count

1-10

902

11-50

424

51-200

201-500

501-1,000

1,001-5,000

10001+

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 energy consulting firms, 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 “energy consulting firms”. 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 energy consulting firms), 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 energy consulting firms, 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, 19,001 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 2, 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.

Energy consulting firms 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 energy consulting firms, 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 energy consulting firms are there based in the United Kingdom?

RevenueBase identified 1,470 energy consulting firms 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?

WOOD, headquartered in Aberdeen, tops this list with the largest team on record.

Which city has the most energy consulting firms?

London leads with 273 headquartered companies, followed by Manchester (38) and Glasgow (25).

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 19,001 verified decision-maker contacts tracked across these 1,470 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 2, 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.