Company lists · Data refreshed September 2026

Top 25 Energy consultancies based in the United Kingdom

RevenueBase identified 4,264 company matches for energy consultancies associated with the United Kingdom as of September 2026 and tracks 106,085 professional contacts across them, including 34,421 with verified work emails. London is the largest hub.

This list covers company matches for energy consultancies associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 SmartSearch · Exact Recorded Sep 21, 2026 How this list was built
4,264Companies
106,085Contacts tracked
34,421Verified emails
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The 25 largest energy consultancies based in the United Kingdom

Ranked by team size
Top 25 of 4,264 company matches for energy consultancies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchAberdeen, United KingdomHQ recorded Sep 21, 202610001+26,949 contacts →

Exact match

“Wood is a global leader in consulting and engineering, delivering critical solutions across energy and materials markets.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchWindsor, United KingdomHQ recorded Sep 21, 202610001+9,238 contacts →

Exact match

“Taking care of things.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchWindsor, United KingdomHQ recorded Sep 21, 202610001+4,555 contacts →

Exact match

“Centrica is an international energy services and solutions company, founded on a 200-year heritage of serving customers in homes and businesses.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 21, 20261,001-5,0002,627 contacts →

Exact match

“We help businesses manage energy needs, boost efficiency, control costs and achieve decarbonisation goals for a better energy future.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 21, 20265,001-10,0001,064 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchOxford, United KingdomHQ recorded Sep 21, 2026501-1,0001,034 contacts →

Exact match

“Established in 2013, Aurora Energy Research is a leading global provider of power market forecasting and analytics for critical investment and financing decisions.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 21, 20261,001-5,0001,007 contacts →

Exact match

“Penspen designs, maintains, and optimises energy infrastructure to improve access to secure and sustainable energy for communities worldwide.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchLeatherhead, United KingdomHQ recorded Sep 21, 2026501-1,000648 contacts →

Exact match

“KBR Consulting is one of the world's foremost engineering consultancies specializing in the hydrocarbon and energy industry.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchChesterton, United KingdomHQ recorded Sep 21, 2026501-1,000589 contacts →

Exact match

“Dalcour Maclaren: delivering land, stakeholder and environmental solutions.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchAberdeen, United KingdomHQ recorded Sep 21, 2026201-500520 contacts →

Exact match

“As a global energy consultancy, we unite our unique and diverse people to share knowledge, innovate and inspire change within the energy industry.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchGateshead, United KingdomHQ recorded Sep 21, 2026501-1,000509 contacts →

Exact match

“As leaders in our field, we’re trusted by over businesses to provide a full energy service.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchCastle Douglas, United KingdomHQ recorded Sep 21, 2026501-1,000500 contacts →

Exact match

“Natural Power is a leading independent consultancy and service provider for the renewable energy sector.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchStockport, United KingdomHQ recorded Sep 21, 202651-200418 contacts →

Exact match

“Fichtner is one of the world's leading independent engineering consultancy firms.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchWesthill, United KingdomHQ recorded Sep 21, 202651-200415 contacts →

Exact match

“Vysus Group is an engineering and technical consultancy, offering specialist asset performance, risk management and project management expertise across complex industrial assets…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 21, 2026501-1,000401 contacts →

Exact match

“Genesis is a market-leading advisory company focused on providing high-value technical and advisory services for the energy industry.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchKirkham, United KingdomHQ recorded Sep 21, 2026501-1,000373 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchWatford, United KingdomHQ recorded Sep 21, 202651-200331 contacts →

Exact match

“Welcome to Corona Energy – a leading independent energy supplier to UK businesses.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 21, 202651-200323 contacts →

Exact match

“As environmental design consultants, building services engineers and lighting designers, we are committed to high performance and sustainable design within the built environment.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchBirmingham, United KingdomHQ recorded Sep 21, 2026201-500317 contacts →

Exact match

“Climate change is without a doubt the greatest challenge we face in these times.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchRedditch, United KingdomHQ recorded Sep 21, 202651-200316 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchNottingham, United KingdomHQ recorded Sep 21, 202651-200273 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchBirmingham, United KingdomHQ recorded Sep 21, 2026501-1,000253 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchCardiff, United KingdomHQ recorded Sep 21, 2026501-1,000213 contacts →

Exact match

“Avantis Group, based in the UK, is a global leader in energy and transportation.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchBury, United KingdomHQ recorded Sep 21, 2026201-500206 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchLytham, United KingdomHQ recorded Sep 21, 2026501-1,000190 contacts →

Exact match

“Inenco Group has been acquired by Sustainable Energy First.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 4,264 energy consultancies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 34,421 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Energy consultancies based in the United Kingdom at a glance

As of Sep 21, 2026
32.4%Verified-email coverage
24.9Average contacts per company
1-10Median size (employees)
19.5%Largest-city concentration · London
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
2,773
11-50
1,097
51-200
265
201-500
49
501-1,000
19
1,001-5,000
14
5,001-10,000
2
10001+
9

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 4,264 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United Kingdom whose business descriptions match “energy consultancies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 34,421 professional contacts with verified work emails across the full matched dataset. 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 21, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “energy consultancies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many energy consultancies are there based in the United Kingdom?

RevenueBase identified 4,264 company matches for energy consultancies associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

WOOD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most energy consultancies?

London leads with 833 company records, followed by Manchester (112) and Glasgow (71).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 34,421 professional contacts with verified work emails tracked across these 4,264 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.

Ready to reach these companies? Verified emails and direct dials for all 4,264 energy consultancies based in the United Kingdom. Start with a free account, no credit card.

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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 SmartSearch, 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.