Company lists · Data refreshed September 2026

Top 25 Net zero compliance software companies based in London, United Kingdom

RevenueBase identified 152 net zero compliance software companies headquartered in London, United Kingdom as of September 2026 and tracks 3,176 professional contacts across them, including 1,416 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers net zero compliance software companies 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 29, 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 29, 2026 86% judged on-target in blind review
152Companies
3,176Contacts tracked
1,416Verified emails
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The 25 largest net zero compliance software companies based in London, United Kingdom

Ranked by team size
Top 25 of 152 net zero compliance software companies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to net zero compliance software companies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLondon, United KingdomHQ checked Sep 29, 2026501-1,000620 contacts →

Indirect 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 29, 2026
2Indirect evidenceLondon, United KingdomHQ checked Sep 29, 2026201-500427 contacts →

Indirect 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 29, 2026
3Indirect evidenceLondon, United KingdomHQ checked Sep 29, 2026201-500212 contacts →

Indirect evidence

“ESG Book and EthiFinance have merged!”

Source: RevenueBase Database · checked Sep 29, 2026
4Partial evidenceLondon, United KingdomHQ checked Sep 29, 202651-200148 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 29, 2026
5Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202651-200123 contacts →

Indirect 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 29, 2026
6Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202651-200115 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 29, 2026
7Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202651-200109 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 29, 2026
8Indirect evidenceLondon, United KingdomHQ checked Sep 29, 2026201-50088 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 29, 2026
9Strong evidenceLondon, United KingdomHQ checked Sep 29, 202651-20069 contacts →

Strong evidence

“Planet Mark is a sustainability certification and net zero provider for organisations and the built environment.”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceLondon, United KingdomHQ checked Sep 29, 2026201-50069 contacts →

Indirect evidence

“EcoAct is now SE Advisory Services.”

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidenceLondon, United KingdomHQ checked Sep 29, 20265,001-10,00066 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 29, 2026
12Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-5063 contacts →

Indirect evidence

“Climate Connect Digital (CCD) is a climate-tech company with Digital Monitoring Reporting Verification products in carbon markets.”

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202651-20045 contacts →

Indirect evidence

“Zevero is a leading carbon management platform that empowers organisations to measure, reduce, and report their carbon emissions with precision and efficiency.”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202651-20044 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 29, 2026
15Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-5042 contacts →

Indirect 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 29, 2026
16Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-5042 contacts →

Indirect evidence

“KarbonWise is a sustainability solutions company that helps businesses take climate action with confidence and clarity.”

Source: RevenueBase Database · checked Sep 29, 2026
17Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202651-20039 contacts →

Indirect evidence

“Faradai provides multi-agent AI & analytics platform to accelerate decarbonization.”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-5033 contacts →

Indirect evidence

“Ikano Insight helps businesses turn ambition into action.”

Source: RevenueBase Database · checked Sep 29, 2026
19Partial evidenceLondon, United KingdomHQ checked Sep 29, 202611-5029 contacts →

Partial evidence

“Minimum is the leading carbon accounting software for enterprise companies.”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-5024 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 29, 2026
21Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-5022 contacts →

Indirect 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 29, 2026
22Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-5022 contacts →

Indirect evidence

“Finboot’s technology provides green supply chain management for the world's largest capital-intensive manufacturing companies.”

Source: RevenueBase Database · checked Sep 29, 2026
23Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-5021 contacts →

Indirect evidence

“Greenpixie delivers highly granular, auditable data on cloud and AI usage, breaking down emissions, energy, and cost by service, region, and resource.”

Source: RevenueBase Database · checked Sep 29, 2026
24Strong evidenceLondon, United KingdomHQ checked Sep 29, 20261-1020 contacts →

Strong evidence

“Your Net Zero Journey, Simplified on One Platform.”

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-5017 contacts →

Indirect 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 29, 2026

Showing 25 of 152 net zero compliance software companies based in London, United Kingdom

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Net zero compliance software companies based in London, United Kingdom at a glance

As of Sep 29, 2026
44.6%Verified-email coverage
20.9Average contacts per company
1-10Median size (employees)
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
81
11-50
48
51-200
16
201-500
5
501-1,000
1
5,001-10,000
1

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 152 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 net zero compliance software companies, 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 “net zero compliance software companies”. 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 net zero compliance software companies), 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 net zero compliance software companies, 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, 1,416 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 29, 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 net zero compliance software companies, 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 net zero compliance software companies are there based in London, United Kingdom?

RevenueBase identified 152 net zero compliance software companies 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 net zero compliance software companies?

London leads the United Kingdom with 152 headquartered companies, followed by Manchester (12) and Edinburgh (7).

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 1,416 verified decision-maker contacts tracked across these 152 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 29, 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.