Company lists · Data refreshed September 2026

Top 25 Carbon project developers worldwide

Name: Carbon project developers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 2,352 companies tracked

RevenueBase identified 2,352 carbon project developers worldwide as of September 2026 and tracks 26,729 professional contacts across them, including 9,920 with verified work emails. The United States is the largest market and London the largest hub.

This list covers carbon project developers 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 project developers 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

2,352Companies

26,729Contacts tracked

9,920Verified emails

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The 25 largest carbon project developers worldwide

Ranked by team size

Top 25 of 2,352 carbon project developers worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to carbon project developers: 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	California Resources Corporation	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,095 contacts →
	Partial evidence “California Resources Corporation (CRC) is an independent energy and carbon management company committed to energy transition.” Source: RevenueBase Database · checked Sep 19, 2026
2	South Pole	Strong evidence	Zurich, SwitzerlandHQ checked Sep 19, 2026	501-1,000	811 contacts →
	Strong evidence “South Pole is the world's leading carbon asset developer and climate consultancy.” Source: RevenueBase Database · checked Sep 19, 2026
3	Energy Solutions	Partial evidence	Oakland, CA, United StatesHQ checked Sep 19, 2026	201-500	772 contacts →
	Partial evidence “Our mission is simple - to combat climate change through market-based, cost-effective energy, carbon, and water management solutions that make big impacts.” Source: RevenueBase Database · checked Sep 19, 2026
4	Cleanmax	Indirect evidence	Mumbai, IndiaHQ checked Sep 19, 2026	201-500	735 contacts →
	Indirect evidence “CleanMax is India’s largest commercial and industrial (“C&I”) renewable energy provider with 3 GW of operational, owned and managed capacity.” Source: RevenueBase Database · checked Sep 19, 2026
5	ACT Group	Indirect evidence	Amsterdam, NetherlandsHQ checked Sep 19, 2026	501-1,000	556 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 Sep 19, 2026
6	Ecosecurities	Indirect evidence	Geneva, SwitzerlandHQ checked Sep 19, 2026	51-200	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 19, 2026
7	Climatepartner	Indirect evidence	München, GermanyHQ checked Sep 19, 2026	501-1,000	376 contacts →
	Indirect evidence “ClimatePartner makes climate action valuable for every company at any stage of their journey.” Source: RevenueBase Database · checked Sep 19, 2026
8	3degrees Group, INC	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 19, 2026	201-500	324 contacts →
	Indirect evidence “3Degrees is a leading global climate solutions provider, pioneer of environmental markets, and Certified B Corporation.” Source: RevenueBase Database · checked Sep 19, 2026
9	SCB Group	Partial evidence	Nyon, SwitzerlandHQ checked Sep 19, 2026	51-200	282 contacts →
	Partial evidence “SCB is a low carbon market leader providing bespoke solutions to help customers achieve their climate goals, carbon neutrality and net-zero commitments.” Source: RevenueBase Database · checked Sep 19, 2026
10	SLB Capturi	Partial evidence	Lysaker, NorwayHQ checked Sep 19, 2026	201-500	243 contacts →
	Partial evidence “At SLB Capturi, we are dedicated to making carbon capture a reality today.” Source: RevenueBase Database · checked Sep 19, 2026
11	WREN	Strong evidence	San Jose, CA, United StatesHQ checked Sep 19, 2026	n/a	240 contacts →
	Strong evidence “Wren Climate, PBC helps you live carbon neutral by accounting for and offsetting your carbon emissions through transparent climate projects.” Source: RevenueBase Database · checked Sep 19, 2026
12	Waycarbon	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 19, 2026	201-500	221 contacts →
	Indirect evidence “WayCarbon is a global company specialized in solutions focused on the transition to a net-zero economy.” Source: RevenueBase Database · checked Sep 19, 2026
13	Nextchem	Indirect evidence	ItalyHQ checked Sep 19, 2026	501-1,000	203 contacts →
	Indirect evidence “NEXTCHEM is MAIRE’s company dedicated to Sustainable Technology Solutions.” Source: RevenueBase Database · checked Sep 19, 2026
14	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
15	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
16	Upenergy	Partial evidence	Kampala, UgandaHQ checked Sep 19, 2026	51-200	168 contacts →
	Partial evidence “UpEnergy builds high-quality decarbonization projects that improve lives.” Source: RevenueBase Database · checked Sep 19, 2026
17	Cenergi SEA	Partial evidence	Shah Alam, MalaysiaHQ checked Sep 19, 2026	201-500	168 contacts →
	Partial evidence “Incorporated in 2013, Cenergi SEA Berhad and its group of companies is a premier sustainable energy solutions company specializing in reducing carbon footprint through investment…” Source: RevenueBase Database · checked Sep 19, 2026
18	Earthood	Partial evidence	Gurgaon, IndiaHQ checked Sep 19, 2026	51-200	140 contacts →
	Partial evidence “Earthood is a pioneering force in the carbon offset verification industry with a reputation as an internationally acclaimed auditing & certification firm, providing strategic…” Source: RevenueBase Database · checked Sep 19, 2026
19	Green Carbon INC	Strong evidence	千代田区, JapanHQ checked Sep 19, 2026	51-200	136 contacts →
	Strong evidence “Founded in 2019, Green Carbon develops decarbonization projects together with farmers around the world.” Source: RevenueBase Database · checked Sep 19, 2026
20	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
21	VNV	Strong evidence	Bangalore, IndiaHQ checked Sep 19, 2026	51-200	106 contacts →
	Strong evidence “Value Network Ventures (VNV) is a leading global project developer at the intersection of carbon finance and climate adaptation.” Source: RevenueBase Database · checked Sep 19, 2026
22	Carboncure Technologies	Partial evidence	Dartmouth, NS, CanadaHQ checked Sep 19, 2026	51-200	100 contacts →
	Partial evidence “Concrete That Matters: CarbonCure Technologies is on a mission to empower cement and concrete producers with technologies and strategies to achieve the industry's net zero…” Source: RevenueBase Database · checked Sep 19, 2026
23	Blackstone Energy Services INC	Partial evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	51-200	98 contacts →
	Partial evidence “Blackstone Energy is an energy transition company that delivers responsible energy and carbon management.” Source: RevenueBase Database · checked Sep 19, 2026
24	Bridge Carbon	Strong evidence	United StatesHQ checked Sep 19, 2026	201-500	98 contacts →
	Strong 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 19, 2026
25	Fortera	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 19, 2026	51-200	96 contacts →
	Indirect evidence “Fortera is a pioneering green cement manufacturer with production in Redding, California.” 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 project developers. 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 project developers.
Partial evidence: Its own public description names part of carbon project developers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name carbon project developers. 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 2,352 carbon project developers worldwide

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Carbon project developers worldwide at a glance

As of Sep 19, 2026

37.1%Verified-email coverage

11.4Average contacts per company

1-10Median size (employees)

5.2%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

1,471

11-50

725

51-200

125

201-500

501-1,000

1,001-5,000

10001+

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 project developers, 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 project developers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “carbon project developers”. 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 project developers), 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 project developers, 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, 9,920 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 project developers by location

14 lists · largest first

Every Carbon project developers 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 project developers, 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 project developers are there worldwide?

RevenueBase identified 2,352 carbon project developers 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?

California Resources Corporation, headquartered in Los Angeles, tops this list with the largest team on record.

Which country has the most carbon project developers?

The United States leads with 266 companies, followed by the United Kingdom (257) and India (150). Every carbon project developers list by country and city is linked on this page.

Which city has the most carbon project developers?

London leads with 123 headquartered companies, followed by Singapore (53) and Sao Paulo (48).

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 9,920 verified decision-maker contacts tracked across these 2,352 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.