Company lists · Data refreshed September 2026

Top 25 Enterprise sustainability platforms based in London, United Kingdom

Name: Enterprise sustainability platforms 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 182 companies tracked

RevenueBase identified 182 enterprise sustainability platforms headquartered in London, United Kingdom as of September 2026 and tracks 2,881 professional contacts across them, including 1,337 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers enterprise sustainability platforms 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

182Companies

2,881Contacts tracked

1,337Verified emails

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The 25 largest enterprise sustainability platforms based in London, United Kingdom

Ranked by team size

Top 25 of 182 enterprise sustainability platforms 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 enterprise sustainability platforms: 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	Ecoonline	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	501-1,000	620 contacts →
	Partial evidence “EcoOnline delivers uncomplicated environment, health and safety (EHS), chemical management and ESG/sustainability technology solutions to forward-thinking leaders.” Source: RevenueBase Database · checked Sep 28, 2026
2	SEDEX	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	427 contacts →
	Partial evidence “Sedex is a global technology company that specialises in data, insights and professional services to empower supply chain sustainability.” Source: RevenueBase Database · checked Sep 28, 2026
3	ESG Book	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	212 contacts →
	Indirect evidence “ESG Book and EthiFinance have merged!” Source: RevenueBase Database · checked Sep 28, 2026
4	Evora Global	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	148 contacts →
	Partial 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
5	Updapt	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	123 contacts →
	Partial evidence “We are a new age technology driven company, providing comprehensive SaaS based ESG (Environmental, Social & Governance) solutions to address end to end sustainability needs of…” Source: RevenueBase Database · checked Sep 28, 2026
6	Altruistiq	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	83 contacts →
	Strong evidence “Altruistiq is a leading Sustainability Intelligence platform trusted by companies across the agriculture value chain.” Source: RevenueBase Database · checked Sep 28, 2026
7	ERM Libryo	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	5,001-10,000	66 contacts →
	Indirect evidence “ERM Libryo is a trusted and pioneering part of ERM’s suite of digital solutions, designed to help organizations navigate complex regulatory landscapes and operational challenges…” Source: RevenueBase Database · checked Sep 28, 2026
8	Action Sustainability	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	62 contacts →
	Partial 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
9	Diginex Nasdaq Dgnx	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	44 contacts →
	Indirect evidence “With its suite of solutions, Diginex Ltd unifies carbon accountability, ESG regulatory reporting, human rights due diligence, supply chain risk, worker voice, and ESG investor…” Source: RevenueBase Database · checked Sep 28, 2026
10	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
11	Karbonwise	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	42 contacts →
	Partial evidence “KarbonWise is a sustainability solutions company that helps businesses take climate action with confidence and clarity.” Source: RevenueBase Database · checked Sep 28, 2026
12	Natcap	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	35 contacts →
	Indirect evidence “Natcap is the world's leading nature intelligence provider, helping global companies measure, report, and act on nature and biodiversity risks and opportunities.” Source: RevenueBase Database · checked Sep 28, 2026
13	Sustainable Markets Initiative	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	35 contacts →
	Indirect evidence “The Sustainable Markets Initiative (SMI) was launched in 2020 by His Majesty King Charles then The Prince of Wales, to accelerate a sustainable future by putting Nature, People…” Source: RevenueBase Database · checked Sep 28, 2026
14	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
15	Minimum	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	29 contacts →
	Partial evidence “Minimum is the leading carbon accounting software for enterprise companies.” Source: RevenueBase Database · checked Sep 28, 2026
16	SB CO	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	27 contacts →
	Partial 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
17	Carbonquota	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	24 contacts →
	Indirect evidence “We are trusted experts in carbon measurement and reduction, specialising in packaging and print manufacturing, media and logistics sectors.” Source: RevenueBase Database · checked Sep 28, 2026
18	Supply Chain Sustainability School UK	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	23 contacts →
	Partial evidence “Launched in 2012, the School is a multi award winning initiative which represents a common approach to addressing sustainability within our supply chains.” Source: RevenueBase Database · checked Sep 28, 2026
19	RIO	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	22 contacts →
	Strong evidence “Rio is an AI-powered sustainability management platform helping global businesses and governmental organisations to understand and improve their environmental and social impact.” Source: RevenueBase Database · checked Sep 28, 2026
20	ETOSO	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	20 contacts →
	Indirect evidence “Etoso is a British software company providing access to the largest source of verified ESG data.” Source: RevenueBase Database · checked Sep 28, 2026
21	KEY ESG	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	17 contacts →
	Strong evidence “KEY ESG is the platform where sustainability teams and their business colleagues collect, validate, analyse, and report ESG data in one place and connect it to the decisions that…” Source: RevenueBase Database · checked Sep 28, 2026
22	Gardenia Technologies	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	17 contacts →
	Partial evidence “Gardenia Technologies builds platforms that streamline the gathering, analysis, and reporting of corporate data.” Source: RevenueBase Database · checked Sep 28, 2026
23	Neuerenergy	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	15 contacts →
	Partial evidence “NeuerEnergy SaaS platform streamlines your Net Zero journey.” Source: RevenueBase Database · checked Sep 28, 2026
24	Climatise	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	15 contacts →
	Strong evidence “Climatise is a carbon accounting platform that simplifies and streamlines sustainability reporting.” Source: RevenueBase Database · checked Sep 28, 2026
25	Unibloom B Corp	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	15 contacts →
	Indirect evidence “Most companies still run sustainable procurement and climate transition work in Excel, PowerPoints, and manual workshops.” 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: enterprise sustainability platforms. 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 enterprise sustainability platforms.
Partial evidence: Its own public description names part of enterprise sustainability platforms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name enterprise sustainability platforms. 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 182 enterprise sustainability platforms based in London, United Kingdom

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Enterprise sustainability platforms based in London, United Kingdom at a glance

As of Sep 28, 2026

46.4%Verified-email coverage

15.8Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

110

11-50

51-200

201-500

501-1,000

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 182 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 enterprise sustainability platforms, 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 “enterprise sustainability platforms”. 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 enterprise sustainability platforms), 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 enterprise sustainability platforms, 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, 1,337 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.

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 enterprise sustainability platforms, 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 enterprise sustainability platforms are there based in London, United Kingdom?

RevenueBase identified 182 enterprise sustainability platforms 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?

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

Which city in the United Kingdom has the most enterprise sustainability platforms?

London leads the United Kingdom with 182 headquartered companies, followed by Manchester (16) and Edinburgh (8).

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 1,337 verified decision-maker contacts tracked across these 182 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.