Company lists · Data refreshed October 2026

Top 25 Corporate energy sustainability advisors based in London, United Kingdom

Name: Corporate energy sustainability advisors based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 10, 2026 349 companies tracked

RevenueBase identified 349 company matches for corporate energy sustainability advisors associated with London, United Kingdom as of October 2026 and tracks 17,188 professional contacts across them, including 8,941 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for corporate energy sustainability advisors associated with London, 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 October 10, 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 Oct 10, 2026 How this list was built

349Companies

17,188Contacts tracked

8,941Verified emails

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The 25 largest corporate energy sustainability advisors based in London, United Kingdom

Ranked by team size

Top 25 of 349 company matches for corporate energy sustainability advisors based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 10, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	ERM	Exact match	London, United KingdomHQ recorded Oct 10, 2026	5,001-10,000	9,532 contacts →
	Exact match “Sustainability is our business.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
2	SLR Consulting	Exact match	London, United KingdomHQ recorded Oct 10, 2026	1,001-5,000	4,083 contacts →
	Exact match “SLR is a committed partner in our clients’ sustainability journeys.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
3	Atelier TEN	Exact match	London, United KingdomHQ recorded Oct 10, 2026	51-200	311 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 · Oct 10, 2026 · View company records in RevenueBase
4	CFP Energy	Exact match	London, United KingdomHQ recorded Oct 10, 2026	201-500	173 contacts →
	Exact match “CFP Energy is a leading provider of energy and environmental solutions for industrial and commercial clients.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
5	ACRE	Exact match	London, United KingdomHQ recorded Oct 10, 2026	51-200	152 contacts →
	Exact match “Acre is the global market leader for sustainability executive search and recruitment services, exclusively focused on integrating sustainability and catalysing positive change…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
6	ZTP	Exact match	London, United KingdomHQ recorded Oct 10, 2026	51-200	128 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
7	Longevity Partners	Exact match	London, United KingdomHQ recorded Oct 10, 2026	51-200	128 contacts →
	Exact match “Longevity Partners is a multidisciplinary energy and sustainability consultancy.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
8	Mitie Energy	Exact match	London, United KingdomHQ recorded Oct 10, 2026	51-200	126 contacts →
	Exact match “Mitie Energy are an award-winning, UK-based energy, utilities and sustainability solutions business.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
9	Greengage Environmental LTD	Exact match	London, United KingdomHQ recorded Oct 10, 2026	51-200	95 contacts →
	Exact match “Greengage is an independent sustainability and environmental consultancy known for providing bespoke advice and working in partnership with our clients and multi-disciplinary…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
10	Sustainable Advantage	Exact match	London, United KingdomHQ recorded Oct 10, 2026	51-200	86 contacts →
	Exact match “Sustainable Advantage partners with Private Equity funds and businesses across the UK, France, and wider Europe.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
11	Alfa Energy An Edison Energy Company	Exact match	London, United KingdomHQ recorded Oct 10, 2026	201-500	83 contacts →
	Exact match “Alfa Energy Group (an Edison Energy company) is an international energy, sustainability and technology consultant partner with 200 employees over four international locations.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
12	FLAG	Exact match	London, United KingdomHQ recorded Oct 10, 2026	51-200	75 contacts →
	Exact match “We’re a global corporate reporting, communications and sustainability agency helping world leading brands deliver ambitious strategies, credible disclosures and meaningful…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
13	Action Sustainability	Exact match	London, United KingdomHQ recorded Oct 10, 2026	51-200	62 contacts →
	Exact match “Recognised for its commitment to employees with a sought-after Best Companies “One To Watch” industry standard, Action Sustainability offers a 3-in-1 solution through…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
14	Advantage Utilities LTD	Exact match	London, United KingdomHQ recorded Oct 10, 2026	11-50	53 contacts →
	Exact match “Advantage Utilities mission is to provide customers with a “One-Stop-Shop” for all their energy needs – with Market Leading Data/Expertise and Unrivalled “Drop Everything”…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
15	Engage Consulting	Exact match	London, United KingdomHQ recorded Oct 10, 2026	11-50	51 contacts →
	Exact match “Energy Industry Experts We are subject matter experts in the energy sector.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
16	Ecoact Part Of Schneider Electric	Exact match	London, United KingdomHQ recorded Oct 10, 2026	201-500	49 contacts →
	Exact match “EcoAct is now SE Advisory Services.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
17	ETUDE	Exact match	London, United KingdomHQ recorded Oct 10, 2026	11-50	48 contacts →
	Exact match “We are a team of sustainability engineers passionate about creating buildings with a positive impact on the environment and the community.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
18	AVA Energy	Exact match	London, United KingdomHQ recorded Oct 10, 2026	11-50	47 contacts →
	Exact match “AVA Energy – Powering Energy Talent.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
19	Eight Versa	Exact match	London, United KingdomHQ recorded Oct 10, 2026	51-200	40 contacts →
	Exact match “At Eight Versa, we deliver a new direction for a balanced future.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
20	Envision	Exact match	London, United KingdomHQ recorded Oct 10, 2026	11-50	33 contacts →
	Exact match “Envision is a specialist sustainability, energy and net zero design consultancy offering strategic and technical advice within the built environment and to businesses wishing to…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
21	Syzygy	Exact match	London, United KingdomHQ recorded Oct 10, 2026	11-50	33 contacts →
	Exact match “Founded in 2010, Syzygy is the leading specialist low carbon technology consultancy for the real estate sector.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
22	Etasca	Exact match	London, United KingdomHQ recorded Oct 10, 2026	11-50	32 contacts →
	Exact match “The energy transition is gaining momentum but needs to accelerate to meet the challenges posed by the climate emergency.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
23	Opus Corporate Finance LLP	Exact match	London, United KingdomHQ recorded Oct 10, 2026	11-50	28 contacts →
	Exact match “Opus is an independent corporate finance advisor focused on the energy transition and sustainable economy.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
24	SB CO	Exact match	London, United KingdomHQ recorded Oct 10, 2026	11-50	28 contacts →
	Exact match “SB+CO is a sustainability consultancy that advises companies on strategy, sustainability activation and integration, ESG, stakeholder engagement and communications – and…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
25	Energex	Exact match	London, United KingdomHQ recorded Oct 10, 2026	11-50	27 contacts →
	Exact match “Energex is a specialist commercial advisory practice serving the energy sector.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “corporate energy sustainability advisors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 349 corporate energy sustainability advisors based in London, United Kingdom

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Corporate energy sustainability advisors based in London, United Kingdom at a glance

As of Oct 10, 2026

52.0%Verified-email coverage

49.2Average contacts per company

1-10Median size (employees)

Oct 10, 2026Page data refreshed

Companies by employee count

1-10

235

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 349 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 London, United Kingdom whose business descriptions match “corporate energy sustainability advisors” 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 8,941 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 October 10, 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.

Corporate energy sustainability advisors by metro in the United Kingdom

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 “corporate energy sustainability advisors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many corporate energy sustainability advisors are there based in London, United Kingdom?

RevenueBase identified 349 company matches for corporate energy sustainability advisors associated with London, United Kingdom as of October 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?

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

Which city in the United Kingdom has the most corporate energy sustainability advisors?

London leads the United Kingdom with 349 company records, followed by Manchester (37) and Bristol (31).

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 8,941 professional contacts with verified work emails tracked across these 349 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 October 10, 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 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.