Company lists · Data refreshed September 2026
Top 25 Voluntary carbon credit companies worldwide
RevenueBase identified 627 voluntary carbon credit companies worldwide as of September 2026 and tracks 4,884 professional contacts across them, including 1,554 with verified work emails. The United States is the largest market and London the largest hub.
This list covers voluntary carbon credit companies 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 September 22, 2026. Country and city lists for voluntary carbon credit companies 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.
The 25 largest voluntary carbon credit companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 406 contacts → | ||||
Indirect evidence “EcoSecurities is a global leader in climate solutions, harnessing the power of nature, technology, and finance to accelerate decarbonisation efforts worldwide.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 203 contacts → | ||||
Strong evidence “EKI Energy Services Ltd.(EKI), erstwhile EnKing International in the climate sector globally, is a leading Carbon Credit Developer & Supplier across the globe.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 200 contacts → | ||||
Partial evidence “Anew Climate is a global leader of diverse climate solutions, bringing innovative products and services to the public and private sectors to help reduce or offset their carbon…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 136 contacts → | ||||
Partial evidence “Founded in 2019, Green Carbon develops decarbonization projects together with farmers around the world.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 135 contacts → | ||||
Indirect evidence “Climate Impact Partners is the trusted partner for organizations taking ambitious climate action.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 98 contacts → | ||||
Partial evidence “Bridge Carbon is a London-based carbon project developer committed to building a world-class carbon finance organization that defines the standards for quality, integrity, and…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 78 contacts → | ||||
Partial evidence “Clear is a carbon offset company which aims to provide the best carbon offsets available worldwide.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 75 contacts → | ||||
Partial evidence “Carbonext arose from the desire to make a difference.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 67 contacts → | ||||
Strong evidence “Patch combines technology and carbon markets expertise to help companies build and execute their carbon credit strategies from end to end, channeling capital into critical…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 57 contacts → | ||||
Partial evidence “Carbonfuture is the digital Trust Infrastructure for durable carbon removal.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 51 contacts → | ||||
Strong evidence “The Global Carbon Council (GCC) is the Middle East & North Africa (MENA) region’s first voluntary carbon offsetting program.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 48 contacts → | ||||
Partial evidence “Reduce your carbon footprint with high-quality, nature-based carbon solutions developed by expert foresters, carbon scientists, and land management specialists.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 48 contacts → | ||||
Strong evidence “Revalue creates radically better nature-based carbon credits that avoid, remove, and durably store CO₂.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 47 contacts → | ||||
Indirect evidence “We are a climate-tech enterprise turning climate challenges into opportunities for people and the planet.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 45 contacts → | ||||
Strong evidence “The advent of the voluntary carbon market is the largest opportunity to permanentely alleviate poverty in rural Sub-Saharan Africa.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 44 contacts → | ||||
Partial evidence “Removall is a project developer designing and operating certified, high-integrity and high-impact carbon offset projects that contribute to achieving the Net Zero objective.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 42 contacts → | ||||
Partial evidence “NativState LLC is a forest carbon project development company partnering with small to medium-sized landowners across the southern United States to deliver access to global carbon…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 40 contacts → | ||||
Strong evidence “RenewCred (Net Zero Initiative Private Limited) is a Global South-led carbon credits standard and registry building trust infrastructure for the voluntary carbon market.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 39 contacts → | ||||
Partial evidence “Ostrom Climate is one of North America’s leading providers of carbon management solutions.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 38 contacts → | ||||
Indirect evidence “rePLANET is a purpose-driven company restoring and protecting ecosystems at scale by unlocking private sector finance.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 36 contacts → | ||||
Strong evidence “Savimbo sells fair-trade carbon credits.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 34 contacts → | ||||
Strong evidence “TEM is a leading Asia-Pacific carbon offsetting solutions provider, across voluntary and compliance markets, including being the largest provider of voluntary Australian carbon…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 32 contacts → | ||||
Partial evidence “TASC is a carbon finance and project development company with active projects in Australia, South Africa, and Zambia.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 28 contacts → | ||||
Partial evidence “Finite Carbon is North America's leading forest carbon project developer.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 28 contacts → | ||||
Partial evidence “Carbon Neutral is a profit-for-purpose carbon solutions provider and carbon offset developer.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
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: voluntary carbon credit companies. 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 voluntary carbon credit companies.
- Partial evidence
- Its own public description names part of voluntary carbon credit companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name voluntary carbon credit companies. 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 627 voluntary carbon credit companies worldwide
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Voluntary carbon credit companies worldwide at a glance
As of Sep 22, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 voluntary carbon credit 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.
- Coverage
- Every country. Country and city lists for voluntary carbon credit companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “voluntary carbon credit 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 voluntary carbon credit 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 voluntary carbon credit companies, 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, 1,554 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 22, 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.
Voluntary carbon credit companies by location
6 lists · largest firstEvery Voluntary carbon credit companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Voluntary carbon credit companies based in the United States83
- Voluntary carbon credit companies based in the United Kingdom60
- Voluntary carbon credit companies based in Brazil40
- Voluntary carbon credit companies based in India35
- Voluntary carbon credit companies based in Australia29
- Voluntary carbon credit companies based in Canada26
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 voluntary carbon credit 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 voluntary carbon credit companies are there worldwide?
RevenueBase identified 627 voluntary carbon credit companies worldwide 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?
Ecosecurities, headquartered in Geneva, tops this list with the largest team on record.
Which country has the most voluntary carbon credit companies?
The United States leads with 83 companies, followed by the United Kingdom (60) and Brazil (40). Every voluntary carbon credit companies list by country and city is linked on this page.
Which city has the most voluntary carbon credit companies?
London leads with 40 headquartered companies, followed by Sao Paulo (19) and Singapore (16).
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 1,554 verified decision-maker contacts tracked across these 627 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 22, 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.