Company lists · Data refreshed September 2026

Top 25 Emissions management consulting firms based in London, United Kingdom

Name: Emissions management consulting firms based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 366 companies tracked

RevenueBase identified 366 emissions management consulting firms headquartered in London, United Kingdom as of September 2026 and tracks 17,864 professional contacts across them, including 9,667 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers emissions management consulting firms headquartered in London, 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 28, 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 28, 2026 86% judged on-target in blind review

366Companies

17,864Contacts tracked

9,667Verified emails

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The 25 largest emissions management consulting firms based in London, United Kingdom

Ranked by team size

Top 25 of 366 emissions management consulting firms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to emissions management 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	ERM	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	5,001-10,000	9,119 contacts →
	Indirect evidence “Sustainability is our business.” Source: RevenueBase Database · checked Sep 28, 2026
2	SLR Consulting	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	3,848 contacts →
	Indirect evidence “SLR is a committed partner in our clients’ sustainability journeys.” Source: RevenueBase Database · checked Sep 28, 2026
3	Anthesis Group	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	894 contacts →
	Indirect evidence “Anthesis guides clients to sustainable performance.” Source: RevenueBase Database · checked Sep 28, 2026
4	Ricardo PLC	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
5	CFP Energy	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	171 contacts →
	Indirect evidence “CFP Energy is a leading provider of energy and environmental solutions for industrial and commercial clients.” Source: RevenueBase Database · checked Sep 28, 2026
6	Evora Global	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	148 contacts →
	Indirect evidence “EVORA is an award-winning global sustainability consultancy and software provider supporting real asset investors, owners, and operators.” Source: RevenueBase Database · checked Sep 28, 2026
7	ZTP	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
8	Longevity Partners	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	115 contacts →
	Indirect evidence “Longevity Partners is a multidisciplinary energy and sustainability consultancy.” Source: RevenueBase Database · checked Sep 28, 2026
9	Greengage Environmental LTD	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	93 contacts →
	Indirect evidence “Greengage is an independent sustainability and environmental consultancy known for providing bespoke advice and working in partnership with our clients and multi-disciplinary…” Source: RevenueBase Database · checked Sep 28, 2026
10	Sustainable Advantage	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	89 contacts →
	Indirect evidence “Sustainable Advantage partners with Private Equity funds and businesses across the UK, France, and wider Europe.” Source: RevenueBase Database · checked Sep 28, 2026
11	Alfa Energy An Edison Energy Company	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	88 contacts →
	Indirect evidence “Alfa Energy Group (an Edison Energy company) is an international energy, sustainability and technology consultant partner with 200 employees over four international locations.” Source: RevenueBase Database · checked Sep 28, 2026
12	FLAG	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	84 contacts →
	Indirect evidence “We're a global sustainability agency, providing strategy, communications and reporting support to the world’s leading brands.” Source: RevenueBase Database · checked Sep 28, 2026
13	Xynteo	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	70 contacts →
	Indirect evidence “Xynteo is a boutique advisory firm, based in Europe and India, on a mission to help global organisations and investors accelerate sustainable impact and value creation.” Source: RevenueBase Database · checked Sep 28, 2026
14	Ecoact Part Of Schneider Electric	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	69 contacts →
	Indirect evidence “EcoAct is now SE Advisory Services.” Source: RevenueBase Database · checked Sep 28, 2026
15	Action Sustainability	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	62 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
16	Advantage Utilities LTD	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	50 contacts →
	Indirect evidence “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”…” Source: RevenueBase Database · checked Sep 28, 2026
17	Circle Development	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	45 contacts →
	Indirect evidence “Circle are Carbon, Project, Cost and Quality experts.” Source: RevenueBase Database · checked Sep 28, 2026
18	Eight Versa	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	42 contacts →
	Indirect evidence “At Eight Versa, we deliver a new direction for a balanced future.” Source: RevenueBase Database · checked Sep 28, 2026
19	Carbonchain	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	42 contacts →
	Partial evidence “CarbonChain's platform enables companies to track, report and reduce their supply chain emissions, covering the most carbon-intensive industries (metals and mining, agriculture…” Source: RevenueBase Database · checked Sep 28, 2026
20	Karbonwise	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	42 contacts →
	Indirect evidence “KarbonWise is a sustainability solutions company that helps businesses take climate action with confidence and clarity.” Source: RevenueBase Database · checked Sep 28, 2026
21	Envision	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	34 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
22	LEAFR	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	n/a	34 contacts →
	Indirect evidence “Leafr is reshaping the sustainability team of the future: faster, leaner, and focused on real progress.” Source: RevenueBase Database · checked Sep 28, 2026
23	Ikano Insight	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	33 contacts →
	Indirect evidence “Ikano Insight helps businesses turn ambition into action.” Source: RevenueBase Database · checked Sep 28, 2026
24	Robertsbridge	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	29 contacts →
	Indirect evidence “Robertsbridge advises major companies as they navigate the increasingly complex intersection of sustainability, climate, nature, and geopolitics.” Source: RevenueBase Database · checked Sep 28, 2026
25	SB CO	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	27 contacts →
	Indirect evidence “SB+CO is a sustainability consultancy that advises companies on strategy, sustainability activation and integration, ESG, stakeholder engagement and communications – and…” Source: RevenueBase Database · checked Sep 28, 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: emissions management 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 emissions management consulting firms.
Partial evidence: Its own public description names part of emissions management consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name emissions management 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 366 emissions management consulting firms based in London, United Kingdom

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Emissions management consulting firms based in London, United Kingdom at a glance

As of Sep 28, 2026

54.1%Verified-email coverage

48.8Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

249

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 366 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 emissions management 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 London, United Kingdom whose own description of what they do matches “emissions management 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 emissions management 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 emissions management consulting firms, and records with no verified work email. Companies headquartered outside London 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, 9,667 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 28, 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.

Emissions management consulting firms by metro in the United Kingdom

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 emissions management 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 emissions management consulting firms are there based in London, United Kingdom?

RevenueBase identified 366 emissions management consulting firms headquartered in London, 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?

ERM, headquartered in London, tops this list with the largest team on record.

Which city in the United Kingdom has the most emissions management consulting firms?

London leads the United Kingdom with 366 headquartered companies, followed by Manchester (35) and Bristol (30).

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 9,667 verified decision-maker contacts tracked across these 366 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 28, 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.