Company lists · Data refreshed September 2026

Top 25 Energy consultants based in the United Kingdom

Name: Energy 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 15, 2026 3,260 companies tracked

RevenueBase identified 3,260 energy consultants headquartered in the United Kingdom as of September 2026 and tracks 100,800 professional contacts across them, including 36,018 with verified work emails. London is the largest hub.

This list covers energy 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 15, 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 15, 2026 86% judged on-target in blind review

3,260Companies

100,800Contacts tracked

36,018Verified emails

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The 25 largest energy consultants based in the United Kingdom

Ranked by team size

Top 25 of 3,260 energy consultants based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 15, 2026. RevenueBase Smart Search rates how each company's information relates to energy 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	WOOD	Partial evidence	Aberdeen, United KingdomHQ checked Sep 15, 2026	10001+	26,949 contacts →
	Partial evidence “Wood is a global leader in consulting and engineering, delivering critical solutions across energy and materials markets.” Source: RevenueBase Database · checked Sep 15, 2026
2	Atkins	Indirect evidence	Epsom, United KingdomHQ checked Sep 15, 2026	10001+	9,297 contacts →
	Indirect evidence “Atkins is now AtkinsRéalis.” Source: RevenueBase Database · checked Sep 15, 2026
3	British GAS	Indirect evidence	Windsor, United KingdomHQ checked Sep 15, 2026	10001+	9,238 contacts →
	Indirect evidence “Taking care of things.” Source: RevenueBase Database · checked Sep 15, 2026
4	ERM	Indirect evidence	London, United KingdomHQ checked Sep 15, 2026	5,001-10,000	9,119 contacts →
	Indirect evidence “Sustainability is our business.” Source: RevenueBase Database · checked Sep 15, 2026
5	Centrica	Partial evidence	Windsor, United KingdomHQ checked Sep 15, 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 15, 2026
6	Shell Energy	Partial evidence	London, United KingdomHQ checked Sep 15, 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 15, 2026
7	Faithful Gould	Indirect evidence	London, United KingdomHQ checked Sep 15, 2026	1,001-5,000	1,194 contacts →
	Indirect evidence “Faithful+Gould is now AtkinsRéalis.” Source: RevenueBase Database · checked Sep 15, 2026
8	Dalkia UK	Partial evidence	London, United KingdomHQ checked Sep 15, 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 15, 2026
9	Aurora Energy Research	Partial evidence	Oxford, United KingdomHQ checked Sep 15, 2026	501-1,000	1,034 contacts →
	Partial evidence “Established in 2013, Aurora Energy Research is a leading global provider of power market forecasting and analytics for critical investment and financing decisions.” Source: RevenueBase Database · checked Sep 15, 2026
10	Penspen	Partial evidence	London, United KingdomHQ checked Sep 15, 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 15, 2026
11	Ricardo PLC	Indirect evidence	London, United KingdomHQ checked Sep 15, 2026	1,001-5,000	670 contacts →
	Indirect evidence “Click the 'Follow' button and explore careers at Ricardo on our 'Jobs' and 'Life' tabs and at careers.ricardo.com.” Source: RevenueBase Database · checked Sep 15, 2026
12	KBR Granherne	Strong evidence	Leatherhead, United KingdomHQ checked Sep 15, 2026	501-1,000	648 contacts →
	Strong evidence “KBR Consulting is one of the world's foremost engineering consultancies specializing in the hydrocarbon and energy industry.” Source: RevenueBase Database · checked Sep 15, 2026
13	XODUS	Strong evidence	Aberdeen, United KingdomHQ checked Sep 15, 2026	201-500	520 contacts →
	Strong evidence “As a global energy consultancy, we unite our unique and diverse people to share knowledge, innovate and inspire change within the energy industry.” Source: RevenueBase Database · checked Sep 15, 2026
14	Northern GAS And Power	Partial evidence	Gateshead, United KingdomHQ checked Sep 15, 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 15, 2026
15	Natural Power	Strong evidence	Castle Douglas, United KingdomHQ checked Sep 15, 2026	501-1,000	500 contacts →
	Strong evidence “Natural Power is a leading independent consultancy and service provider for the renewable energy sector.” Source: RevenueBase Database · checked Sep 15, 2026
16	Fichtner Consulting Engineers LTD	Partial evidence	Stockport, United KingdomHQ checked Sep 15, 2026	51-200	418 contacts →
	Partial evidence “Fichtner is one of the world's leading independent engineering consultancy firms.” Source: RevenueBase Database · checked Sep 15, 2026
17	Vysus Group	Partial evidence	Westhill, United KingdomHQ checked Sep 15, 2026	51-200	415 contacts →
	Partial evidence “Vysus Group is an engineering and technical consultancy, offering specialist asset performance, risk management and project management expertise across complex industrial assets…” Source: RevenueBase Database · checked Sep 15, 2026
18	Genesis	Partial evidence	London, United KingdomHQ checked Sep 15, 2026	501-1,000	401 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 15, 2026
19	Inspired PLC	Partial evidence	Kirkham, United KingdomHQ checked Sep 15, 2026	501-1,000	373 contacts →
	Partial evidence “Inspired PLC is a leading technology-enabled provider of energy and sustainability solutions that allow UK and Irish businesses to transition to net-zero carbon and manage their…” Source: RevenueBase Database · checked Sep 15, 2026
20	Hydrock, NOW Stantec	Strong evidence	Almondsbury, United KingdomHQ checked Sep 15, 2026	501-1,000	352 contacts →
	Strong evidence “Hydrock now Stantec is an integrated engineering design, energy and sustainability consultancy.” Source: RevenueBase Database · checked Sep 15, 2026
21	Atelier TEN	Partial evidence	London, United KingdomHQ checked Sep 15, 2026	51-200	323 contacts →
	Partial evidence “As environmental design consultants, building services engineers and lighting designers, we are committed to high performance and sustainable design within the built environment.” Source: RevenueBase Database · checked Sep 15, 2026
22	EIC Partnership	Partial evidence	Redditch, United KingdomHQ checked Sep 15, 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 15, 2026
23	YU Energy	Partial evidence	Nottingham, United KingdomHQ checked Sep 15, 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 15, 2026
24	Wardell Armstrong LLP NOW SLR	Indirect evidence	Birmingham, United KingdomHQ checked Sep 15, 2026	501-1,000	253 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 15, 2026
25	Intec Energy Solutions	Partial evidence	London, United KingdomHQ checked Sep 15, 2026	501-1,000	242 contacts →
	Partial evidence “INTEC Energy Solutions delivers best-in-class services in Engineering, Procurement, Construction (EPC), Battery Energy Storage Systems (BESS), Manufacturing, Project Development…” Source: RevenueBase Database · checked Sep 15, 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 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 energy consultants.
Partial evidence: Its own public description names part of energy consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy 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 3,260 energy consultants based in the United Kingdom

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Energy consultants based in the United Kingdom at a glance

As of Sep 15, 2026

35.7%Verified-email coverage

30.9Average contacts per company

1-10Median size (employees)

21.2%Largest-city concentration · London

Sep 15, 2026Page data refreshed

Companies by employee count

1-10

2,137

11-50

841

51-200

185

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 3,260 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 energy 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 “energy 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 energy 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 energy 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, 36,018 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 15, 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 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 energy 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 energy consultants are there based in the United Kingdom?

RevenueBase identified 3,260 energy 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?

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

Which city has the most energy consultants?

London leads with 690 headquartered companies, followed by Manchester (87) and Aberdeen (57).

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 36,018 verified decision-maker contacts tracked across these 3,260 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 15, 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.