Company lists · Data refreshed September 2026

Top 25 Carbon credit trading companies worldwide

Name: Carbon credit trading companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 794 companies tracked

RevenueBase identified 794 carbon credit trading companies worldwide as of September 2026 and tracks 6,674 professional contacts across them, including 2,315 with verified work emails. The United States is the largest market and London the largest hub.

This list covers carbon credit trading 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 19, 2026. Country and city lists for carbon credit trading 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review

794Companies

6,674Contacts tracked

2,315Verified emails

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The 25 largest carbon credit trading companies worldwide

Ranked by team size

Top 25 of 794 carbon credit trading companies worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to carbon credit trading 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	STX Group	Partial evidence	Amsterdam, NetherlandsHQ checked Sep 19, 2026	501-1,000	502 contacts →
	Partial evidence “STX Group is a leading global firm in environmental commodities trading and climate finance.” Source: RevenueBase Database · checked Sep 19, 2026
2	EKI Energy Services LTD Enking International	Strong evidence	Indore, IndiaHQ checked Sep 19, 2026	201-500	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 19, 2026
3	Anew Climate	Partial evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	201-500	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 19, 2026
4	Levelten Energy	Indirect evidence	Seattle, United StatesHQ checked Sep 19, 2026	51-200	149 contacts →
	Indirect evidence “LevelTen Energy is the leading provider of transaction infrastructure for the clean energy transition, connecting buyers, sellers, and financiers through dynamic marketplaces…” Source: RevenueBase Database · checked Sep 19, 2026
5	Green Carbon INC	Partial evidence	千代田区, JapanHQ checked Sep 19, 2026	51-200	136 contacts →
	Partial evidence “Founded in 2019, Green Carbon develops decarbonization projects together with farmers around the world.” Source: RevenueBase Database · checked Sep 19, 2026
6	Climate Impact Partners	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	135 contacts →
	Indirect evidence “Climate Impact Partners is the trusted partner for organizations taking ambitious climate action.” Source: RevenueBase Database · checked Sep 19, 2026
7	Vertis Environmental Finance	Partial evidence	Budapest, HungaryHQ checked Sep 19, 2026	51-200	103 contacts →
	Partial evidence “Founded in 1998, Vertis was a pioneer in carbon markets, helping companies finance emissions reduction.” Source: RevenueBase Database · checked Sep 19, 2026
8	CLEAR	Partial evidence	United KingdomHQ checked Sep 19, 2026	n/a	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 19, 2026
9	SAMI	Indirect evidence	Paris, FranceHQ checked Sep 19, 2026	51-200	76 contacts →
	Indirect evidence “Sami: Smart.” Source: RevenueBase Database · checked Sep 19, 2026
10	Carbonext	Partial evidence	São Paulo, BrazilHQ checked Sep 19, 2026	51-200	75 contacts →
	Partial evidence “Carbonext arose from the desire to make a difference.” Source: RevenueBase Database · checked Sep 19, 2026
11	IETA	Indirect evidence	SwitzerlandHQ checked Sep 19, 2026	11-50	73 contacts →
	Indirect evidence “MAKING NET ZERO POSSIBLE.” Source: RevenueBase Database · checked Sep 19, 2026
12	PATCH	Strong evidence	San Francisco, United StatesHQ checked Sep 19, 2026	51-200	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 19, 2026
13	Infinite Environmental Solutions Limited Climate Change & Sustainability	Strong evidence	Indore, IndiaHQ checked Sep 19, 2026	51-200	66 contacts →
	Strong evidence “Infinite Solutions is a Global Leading Carbon Credit Consultancy and Carbon Credit Trading company that has been formed with a vision to provide quality services leading to…” Source: RevenueBase Database · checked Sep 19, 2026
14	Clearblue Markets	Partial evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	51-200	66 contacts →
	Partial evidence “ClearBlue empowers clients to take action, manage risk and realize value in the carbon markets via technology-enabled solutions.” Source: RevenueBase Database · checked Sep 19, 2026
15	Climate Impact X	Strong evidence	SingaporeHQ checked Sep 19, 2026	51-200	59 contacts →
	Strong evidence “Climate Impact X (CIX) is a leading exchange in the environmental markets that manages the trading, supply and demand of carbon credits and renewable energy certificates.” Source: RevenueBase Database · checked Sep 19, 2026
16	Carbonfuture	Partial evidence	Freiburg, GermanyHQ checked Sep 19, 2026	11-50	57 contacts →
	Partial evidence “Carbonfuture is the digital Trust Infrastructure for durable carbon removal.” Source: RevenueBase Database · checked Sep 19, 2026
17	Sinai Carbon Management	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 19, 2026	51-200	56 contacts →
	Indirect evidence “SINAI Technologies Inc.” Source: RevenueBase Database · checked Sep 19, 2026
18	Emergent	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	11-50	50 contacts →
	Indirect evidence “Emergent is a non-profit dedicated to accelerating the speed and scale of forest conservation to combat the climate crisis.” Source: RevenueBase Database · checked Sep 19, 2026
19	Calyx Global	Strong evidence	Leadville, CO, United StatesHQ checked Sep 19, 2026	11-50	47 contacts →
	Strong evidence “Calyx Global is the trusted carbon credit ratings platform that helps organizations buy and invest in carbon credits with confidence.” Source: RevenueBase Database · checked Sep 19, 2026
20	Abatable	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	45 contacts →
	Strong evidence “Abatable is a leading provider of carbon credit procurement, intelligence, and advisory solutions.” Source: RevenueBase Database · checked Sep 19, 2026
21	Removall Carbon	Partial evidence	Paris, FranceHQ checked Sep 19, 2026	11-50	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 19, 2026
22	Sustainiam	Strong evidence	Noida, IndiaHQ checked Sep 19, 2026	51-200	43 contacts →
	Strong evidence “Sustainiam, established in 2023, is revolutionizing the fight against climate change with innovative carbon emission tracking, certificate issuance, and trading services.” Source: RevenueBase Database · checked Sep 19, 2026
23	Carbonchain	Partial evidence	London, United KingdomHQ checked Sep 19, 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 19, 2026
24	Rubicon Carbon	Partial evidence	Marina Del Rey, CA, United StatesHQ checked Sep 19, 2026	11-50	41 contacts →
	Partial evidence “Rubicon Carbon is a next-generation carbon solutions provider.” Source: RevenueBase Database · checked Sep 19, 2026
25	Renewcred	Strong evidence	Bengaluru East, IndiaHQ checked Sep 19, 2026	11-50	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 19, 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: carbon credit trading 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 carbon credit trading companies.
Partial evidence: Its own public description names part of carbon credit trading companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name carbon credit trading 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 794 carbon credit trading companies worldwide

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Carbon credit trading companies worldwide at a glance

As of Sep 19, 2026

34.7%Verified-email coverage

8.4Average contacts per company

1-10Median size (employees)

5.9%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

506

11-50

241

51-200

201-500

501-1,000

1,001-5,000

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 carbon credit trading 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 carbon credit trading companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “carbon credit trading 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 carbon credit trading 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 carbon credit trading 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, 2,315 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 19, 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.

Carbon credit trading companies by location

6 lists · largest first

Every Carbon credit trading companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 carbon credit trading 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 carbon credit trading companies are there worldwide?

RevenueBase identified 794 carbon credit trading 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?

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

Which country has the most carbon credit trading companies?

The United States leads with 98 companies, followed by the United Kingdom (72) and Brazil (59). Every carbon credit trading companies list by country and city is linked on this page.

Which city has the most carbon credit trading companies?

London leads with 47 headquartered companies, followed by Sao Paulo (25) and Singapore (25).

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 2,315 verified decision-maker contacts tracked across these 794 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 19, 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.