Company lists · Data refreshed September 2026

Top 25 Sustainability software companies based in London, United Kingdom

Name: Sustainability software companies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 13, 2026 197 companies tracked

RevenueBase identified 197 company matches for sustainability software companies associated with London, United Kingdom as of September 2026 and tracks 12,649 professional contacts across them, including 6,279 with verified work emails and 2,073 with mobile numbers. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for sustainability software companies 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 September 13, 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 13, 2026 How this list was built

197Companies

12,649Contacts tracked

6,279Verified emails

2,073Mobile numbers

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The 25 largest sustainability software companies based in London, United Kingdom

Ranked by team size

Top 25 of 197 company matches for sustainability software companies based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 13, 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 Sep 13, 2026	5,001-10,000	9,119 contacts →
	Exact match “Sustainability is our business.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
2	Ecoonline	Exact match	London, United KingdomHQ recorded Sep 13, 2026	501-1,000	620 contacts →
	Exact match “EcoOnline delivers uncomplicated environment, health and safety (EHS), chemical management and ESG/sustainability technology solutions to forward-thinking leaders.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
3	SEDEX	Exact match	London, United KingdomHQ recorded Sep 13, 2026	201-500	427 contacts →
	Exact match “Sedex is a global technology company that specialises in data, insights and professional services to empower supply chain sustainability.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
4	ESG Book	Exact match	London, United KingdomHQ recorded Sep 13, 2026	201-500	212 contacts →
	Exact match “ESG Book and EthiFinance have merged!” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
5	ACRE	Exact match	London, United KingdomHQ recorded Sep 13, 2026	51-200	158 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 · Sep 13, 2026 · View company records in RevenueBase
6	Evora Global	Exact match	London, United KingdomHQ recorded Sep 13, 2026	51-200	148 contacts →
	Exact match “EVORA is an award-winning global sustainability consultancy and software provider supporting real asset investors, owners, and operators.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
7	Updapt	Exact match	London, United KingdomHQ recorded Sep 13, 2026	51-200	123 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
8	ZTP	Exact match	London, United KingdomHQ recorded Sep 13, 2026	51-200	115 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 · Sep 13, 2026 · View company records in RevenueBase
9	Ecolibrium	Exact match	London, United KingdomHQ recorded Sep 13, 2026	51-200	109 contacts →
	Exact match “Ecolibrium is a sustainability tech company that empowers people to make better decisions based on proven data-driven ML algorithms through continuous monitoring, analysis and…” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
10	Alfa Energy An Edison Energy Company	Exact match	London, United KingdomHQ recorded Sep 13, 2026	201-500	88 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 · Sep 13, 2026 · View company records in RevenueBase
11	FLAG	Exact match	London, United KingdomHQ recorded Sep 13, 2026	51-200	84 contacts →
	Exact match “We're a global sustainability agency, providing strategy, communications and reporting support to the world’s leading brands.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
12	Altruistiq	Exact match	London, United KingdomHQ recorded Sep 13, 2026	51-200	83 contacts →
	Exact match “Altruistiq is a leading Sustainability Intelligence platform trusted by companies across the agriculture value chain.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
13	Ecoact Part Of Schneider Electric	Exact match	London, United KingdomHQ recorded Sep 13, 2026	201-500	69 contacts →
	Exact match “EcoAct is now SE Advisory Services.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
14	Action Sustainability	Exact match	London, United KingdomHQ recorded Sep 13, 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 · Sep 13, 2026 · View company records in RevenueBase
15	Zevero	Exact match	London, United KingdomHQ recorded Sep 13, 2026	51-200	45 contacts →
	Exact match “Zevero is a leading carbon management platform that empowers organisations to measure, reduce, and report their carbon emissions with precision and efficiency.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
16	Minviro	Exact match	London, United KingdomHQ recorded Sep 13, 2026	11-50	43 contacts →
	Exact match “Minviro is a global leader in Life Cycle Assessment (LCA) services, offering software, consultancy, research, and database solutions to companies driving the energy transition.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
17	Eight Versa	Exact match	London, United KingdomHQ recorded Sep 13, 2026	51-200	42 contacts →
	Exact match “At Eight Versa, we deliver a new direction for a balanced future.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
18	Carbonchain	Exact match	London, United KingdomHQ recorded Sep 13, 2026	11-50	42 contacts →
	Exact match “CarbonChain's platform enables companies to track, report and reduce their supply chain emissions, covering the most carbon-intensive industries (metals and mining, agriculture…” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
19	Karbonwise	Exact match	London, United KingdomHQ recorded Sep 13, 2026	11-50	42 contacts →
	Exact match “KarbonWise is a sustainability solutions company that helps businesses take climate action with confidence and clarity.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
20	Natcap	Exact match	London, United KingdomHQ recorded Sep 13, 2026	11-50	35 contacts →
	Exact match “Natcap is the world's leading nature intelligence provider, helping global companies measure, report, and act on nature and biodiversity risks and opportunities.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
21	Ikano Insight	Exact match	London, United KingdomHQ recorded Sep 13, 2026	11-50	33 contacts →
	Exact match “Ikano Insight helps businesses turn ambition into action.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
22	Minimum	Exact match	London, United KingdomHQ recorded Sep 13, 2026	11-50	29 contacts →
	Exact match “Minimum is the leading carbon accounting software for enterprise companies.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
23	SB CO	Exact match	London, United KingdomHQ recorded Sep 13, 2026	11-50	27 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 · Sep 13, 2026 · View company records in RevenueBase
24	Canbury	Exact match	London, United KingdomHQ recorded Sep 13, 2026	11-50	24 contacts →
	Exact match “We use the latest technologies to provide our clients with a full service of sustainability support - from source data through to client reporting.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
25	Carbonquota	Exact match	London, United KingdomHQ recorded Sep 13, 2026	11-50	24 contacts →
	Exact match “We are trusted experts in carbon measurement and reduction, specialising in packaging and print manufacturing, media and logistics sectors.” Recorded in the RevenueBase company graph · Sep 13, 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 “sustainability software companies”. 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 197 sustainability software companies based in London, United Kingdom

See the full list, filter by size, metro and specialty, and access 6,279 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Sustainability software companies based in London, United Kingdom at a glance

As of Sep 13, 2026

49.6%Verified-email coverage

16.4%Mobile-number coverage

64.2Average contacts per company

1-10Median size (employees)

Sep 13, 2026Page data refreshed

Companies by employee count

1-10

121

11-50

51-200

201-500

501-1,000

5,001-10,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 15.0d

5,0180–30

1,18631–60

2961–90

090–180

46180+

Company record updated

Median 63.5d

00–30

6,01731–60

4,88961–90

1,13490–180

609180+

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 “sustainability software companies” 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 6,279 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 13, 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 “sustainability software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many sustainability software companies are there based in London, United Kingdom?

RevenueBase identified 197 company matches for sustainability software companies associated with London, 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?

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 sustainability software companies?

London leads the United Kingdom with 197 company records, followed by Manchester (21) and Edinburgh (11).

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 6,279 professional contacts with verified work emails tracked across these 197 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 13, 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.