Company lists · Data refreshed August 2026

Top 25 City carbon accounting software providers worldwide

RevenueBase identified 769 city carbon accounting software providers worldwide as of August 2026 and tracks 11,033 professional contacts across them, including 4,587 with verified work emails and 1,157 with mobile numbers. The United Kingdom is the largest market and London the largest hub.

This list covers city carbon accounting software providers worldwide, 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 August 31, 2026. Country and city lists for city carbon accounting software providers follow the table.

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 RevenueBase Smart Search rating on every row Refreshed Aug 31, 2026 86% judged on-target in blind review
769Companies
11,033Contacts tracked
4,587Verified emails
1,157Mobile numbers
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The 25 largest city carbon accounting software providers worldwide

Ranked by team size
Top 25 of 769 city carbon accounting software providers worldwide, ranked by team size, largest first. Data refreshed Aug 31, 2026. RevenueBase Smart Search rates how each company's information relates to city carbon accounting software providers: 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 evidenceAmsterdam, NetherlandsHQ checked Aug 31, 2026501-1,000556 contacts →

Indirect evidence

“As the leading environmental solutions partner for organizations globally, ACT helps its partners meet increasing environmental action and disclosure expectations from regulators…”

Source: RevenueBase Database · checked Aug 31, 2026
2Indirect evidenceSan Francisco, CA, US201-500537 contacts →

Indirect evidence

“Watershed is the enterprise sustainability platform.”

Source: RevenueBase Database · checked Aug 31, 2026
3Indirect evidenceAachen, DE501-1,000363 contacts →

Indirect evidence

“KISTERS specialises in the collection, processing and reporting of environmental data from around the world, creating innovative and data-driven solutions that harness the power…”

Source: RevenueBase Database · checked Aug 31, 2026
4Indirect evidenceParis, FR51-200308 contacts →

Indirect evidence

“Greenly is on a mission to democratize access to science-backed climate intelligence, transforming sustainability from a compliance burden into a strategic competitive advantage.”

Source: RevenueBase Database · checked Aug 31, 2026
5Partial evidenceMalmö, SwedenHQ checked Aug 31, 2026201-500306 contacts →

Partial evidence

“Position Green is a sustainability data reporting and management platform that combines software capabilities with expert advisory services to revolutionize the way businesses…”

Source: RevenueBase Database · checked Aug 31, 2026
6Indirect evidenceBelo Horizonte, BR201-500219 contacts →

Indirect evidence

“WayCarbon is a global company specialized in solutions focused on the transition to a net-zero economy.”

Source: RevenueBase Database · checked Aug 31, 2026
7Partial evidenceLondon, GB51-200191 contacts →

Partial evidence

“Investing in carbon projects is essential to tackling climate change.”

Source: RevenueBase Database · checked Aug 31, 2026
8Indirect evidenceMontpellier, FR51-200188 contacts →

Indirect evidence

“Sweep is the enterprise sustainability data management platform trusted by the world’s leading companies and financial institutions.”

Source: RevenueBase Database · checked Aug 31, 2026
9Partial evidenceNew York City, US51-200171 contacts →

Partial evidence

Carbon Direct is a trusted energy and climate solutions company that combines world-class scientific expertise, technical rigor, and market insights to help clients achieve their…”

Source: RevenueBase Database · checked Aug 31, 2026
10Partial evidenceMontreal, QC, CA51-200151 contacts →

Partial evidence

“Novisto is the sustainability data management and reporting software of choice for global enterprises.”

Source: RevenueBase Database · checked Aug 31, 2026
11Indirect evidenceHamburg, DE51-200146 contacts →

Indirect evidence

“iPoint empowers companies to collect, analyze and report all necessary data to assess the environmental, social, and economic impacts of their products and related processes…”

Source: RevenueBase Database · checked Aug 31, 2026
12Strong evidenceLondon, GB51-200136 contacts →

Strong evidence

“Normative provides science-based carbon accounting software and tailored advice from net-zero experts, enabling companies to reduce their carbon footprints.”

Source: RevenueBase Database · checked Aug 31, 2026
13Partial evidenceDenver, CO, US51-200136 contacts →

Partial evidence

“Touchstone IQ is a leading-edge building energy management software & services company.”

Source: RevenueBase Database · checked Aug 31, 2026
14Indirect evidenceAhmedabad, IndiaHQ checked Aug 31, 202651-200120 contacts →

Indirect evidence

“Oizom is an Environmental Solution Company.”

Source: RevenueBase Database · checked Aug 31, 2026
15Strong evidenceMunich, DE51-200115 contacts →

Strong evidence

“Plan A, a Diginex Company, is Europe’s leading provider of corporate carbon accounting and decarbonisation software, enabling companies to turn emissions intelligence into…”

Source: RevenueBase Database · checked Aug 31, 2026
16Indirect evidenceParis, FR11-50109 contacts →

Indirect evidence

“Eco CO2 se positionne sur le marché de l'environnement et du développement durable.”

Source: RevenueBase Database · checked Aug 31, 2026
17Indirect evidenceSan Mateo, CA, US51-200101 contacts →

Indirect evidence

“Pulsora is a sustainability management platform that helps businesses simplify and consolidate complex ESG operations, processes, and data in one centralized hub.”

Source: RevenueBase Database · checked Aug 31, 2026
18Partial evidenceMountain View, CA, US51-20094 contacts →

Partial evidence

“Locus Technologies is the only scientist-driven software company at the nexus of analytical and field data management, Environmental, Health, and Safety (EHS) compliance, and…”

Source: RevenueBase Database · checked Aug 31, 2026
19Partial evidenceParis, FR11-5091 contacts →

Partial evidence

Carbonable’s platform enables organizations to drive intelligent, scalable, and trustworthy climate contributions.”

Source: RevenueBase Database · checked Aug 31, 2026
20Indirect evidenceChicago, IL, US51-20082 contacts →

Indirect evidence

“We live and work in Berlin.”

Source: RevenueBase Database · checked Aug 31, 2026
21Partial evidenceBad Vilbel, DE51-20077 contacts →

Partial evidence

“With 25 years of experience, First Climate is a leading global provider of carbon management and green energy services for hundreds of corporate and public sector clients.”

Source: RevenueBase Database · checked Aug 31, 2026
22Partial evidenceSan Sebastián De Los Reyes, SpainHQ checked Aug 31, 202651-20077 contacts →

Partial evidence

“Hi, we’re Sygris, Spain’s leader in sustainability consulting and ESG software.”

Source: RevenueBase Database · checked Aug 31, 2026
23Partial evidenceBerlin, DE51-20075 contacts →

Partial evidence

carbmee helps companies with complex supply chains to seamlessly collect, analyze, and report emissions data across all three scopes of the Greenhouse Gas (GHG) Protocol…”

Source: RevenueBase Database · checked Aug 31, 2026
24Partial evidenceMunchen, DE51-20072 contacts →

Partial evidence

“VERSO ist Sustainability-Software-Pionier und Full-Service-Anbieter für die Nachhaltige Transformation im Mittelstand.”

Source: RevenueBase Database · checked Aug 31, 2026
25Partial evidenceMilton Keynes, GB51-20070 contacts →

Partial evidence

“TEAM is the UK’s leading supplier of carbon and energy management solutions committed to driving the efficiency and sustainability of energy consumption and environmental…”

Source: RevenueBase Database · checked Aug 31, 2026

Showing 25 of 769 city carbon accounting software providers worldwide

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City carbon accounting software providers worldwide at a glance

As of Aug 31, 2026
41.6%Verified-email coverage
10.5%Mobile-number coverage
14.3Average contacts per company
1-10Median size (employees)
9.9%Largest-city concentration · London
Aug 31, 2026Page data refreshed

Companies by employee count

1-10
436
11-50
267
51-200
52
201-500
5
501-1,000
3
1,001-5,000
3
5,001-10,000
1

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 city carbon accounting software providers, 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.
Coverage
12 countries, largest first: the United Kingdom, the United States, Germany, India, Canada, France, Australia, Brazil, Türkiye, Sweden and 2 more. Country and city lists for city carbon accounting software providers are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “city carbon accounting software providers”. 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 city carbon accounting software providers), 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 city carbon accounting software providers, and records with no verified work email.
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, 4,587 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 between August 31, 2026 and September 14, 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.

City carbon accounting software providers by location

14 lists · largest first

Every City carbon accounting software providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 city carbon accounting software providers, 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 city carbon accounting software providers are there worldwide?

RevenueBase identified 769 city carbon accounting software providers worldwide as of August 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?

ACT Group, headquartered in Amsterdam, tops this list with the largest team on record.

Which country has the most city carbon accounting software providers?

The United Kingdom leads with 161 companies, followed by the United States (157) and Germany (85). Every city carbon accounting software providers list by country and city is linked on this page.

Which city has the most city carbon accounting software providers?

London leads with 76 headquartered companies, followed by Paris (25) and Berlin (21).

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 4,587 verified decision-maker contacts tracked across these 769 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled from the company graph between August 31, 2026 and September 14, 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.