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The State of the Carbon Developer Ecosystem 2021

Published: 22 Dec 2021
Last updated: 30 Nov 2023

For the latest Carbon Developer Ecosystem Report (from January 2023) click here.

Sample of the developer ecosystem showing the concentration of nature-based country-specific projects
Photo credits: Abatable Carbon Developer Ecosystem Report 2021

About this report

We have published the first-ever report analysing the state of the carbon project developer ecosystem.

With increasing pressure on corporations to show climate action, the voluntary carbon market (VCM) demand is expected to grow x5-10 over the next ten years and x10-30 by 2050 from 95 million metric tons of CO2 equivalent (MtCO2e) in 2020, according to Trove Research[1].

We believe understanding the state of the carbon project developer ecosystem and its level of maturity can inform supply-side views on the market's ability to deliver on the integrity claims and volumes needed, as well as shed light on the developers actively contributing expertise and know-how to the growth of this market.

We have analysed aggregate data across project developers which report to the four major registries – Verra's Verified Carbon Standard (VCS), Gold Standard (GS), Climate Action Reserve (CAR) and the American Carbon Registry (ACR). Data is from the Berkeley Carbon Trading Project and includes proprietary data from Abatable. Key observations are based on conversations with over 50 project developers.

Unlike other research reports that prefer a project- or registry-specific profiling, this report seeks to lay out key developer-level observations and better understand supply-side implications for the VCM.

Why focus on carbon project developers?

Fulfilling the promise of the Paris Agreement will require the adoption of more ambitious emission reduction initiatives, as well as increased private and public commitments to be developing carbon offsetting projects as a way to neutralise the roughly 30% hard-to-abate emissions globally[2]. It is increasingly clear that well-designed voluntary carbon markets can help achieve this goal. Carbon project developers play a central role in the voluntary carbon market (VCM) and are key to delivering its success.

They source and initiate carbon offsetting projects around the world; they bring implementation partners and finance together, they work with carbon credit standards and verification bodies, they bear financial risks of carbon projects and work with a network of distributors and retailers to deliver auditable carbon offsetting claims in corporations' climate action programs.

Diagram of the place of carbon project developers in the carbon offsetting ecosystem
Photo credits: Abatable Carbon Developer Ecosystem Report 2021

Download the repot

Visit the report download page to get the full document.

Key observations on the state of the carbon developer ecosystem

The carbon project developer ecosystem remains hyper-localised and highly concentrated by volume into a few carbon developers, with a long tail of small and mid-sized developers operating smaller carbon portfolios.

The top 20 developers by number (out of 1382) account for over one third (39%) of total volumes issued to date, and the top 5 are responsible for 15% of all issuances. 97% of developers have experience developing carbon projects only in one country, with very few global and regional operators. The developer market includes operators predominantly in India, the United States, China and Turkey with little projects being developed in Europe, despite many active offset buyers in the region. Intermediaries and capital providers have started forming partnerships with large developers or are considering acquiring carbon development platforms to internalise carbon project experience and accelerate carbon credit supply formation across regional and global portfolios. This trend may result in increased market consolidation with smaller carbon credit developers risking being overlooked by market participants.

Developers with experience developing avoided carbon emissions projects, such as renewable energy and industrial efficiency, dominate by number relative to nature-based.

A large number of developers was formed as a result of carbon finance incentives provided under the Clean Development Mechanism (CDM) during the period 2005-13 and before the market price collapsed for CDM credits, which have left developers with legacy avoidance portfolios questioned by buyers for poor quality criteria. Recent supply shifts see developers leverage carbon project development and verification expertise into nature-based projects in response to buyers' preferences for such projects. Lack of expertise in implementing more complex nature-based projects may result in developers' taking higher project development risks (e.g. biological growth uncertainty, fire and other natural climate risks) relative to the legacy, industrial-based projects.

Few nature-based avoidance developers may continue to lead by issuances due to high entry barriers.

Most issuances are concentrated into a few large operators of large-scale avoided conversion and REDD+ projects (mainly in the Global South) or improved forest management projects (mainly in the United States). The latter continue to partner with large U.S. timberland funds to develop projects under state carbon programs (e.g. California’s Compliance Offsets Program under the state cap-and-trade system). Buyer preferences are increasingly pushing developers towards nature-based solutions and removal credits, but in the absence of new market entrants, the market risks failing to meet short-term demand for removals, with potential pricing implications. Developers are equally focused on expanding large-scale nature-based avoidance carbon credits, which are estimated to be contributing significantly to supply in the next decade; however, those projects are jurisdictionally more complex to implement and may present higher barriers to entry.

About the Author

Maria Eugenia Filmanovic is Co-Founder of Abatable, a VC-backed startup building a carbon procurement platform connecting investors, corporates and project developers in the voluntary carbon market. She previously worked as a Vice President at Goldman Sachs and advised large corporates and institutional investors on nature-based carbon removal and impact investment portfolios.

About Abatable

Abatable is a carbon procurement platform for carbon project developers, corporates and investors. Our platform connects project developers to corporates and capital providers interested in long-term carbon offtake agreements. As operators in the voluntary carbon market, we have developed an understanding of the carbon project developer ecosystem, with key observations summarized in this report.

If you have any questions about this report, have any feedback for us, or would like to enquire about a partnership, please get in touch.


[1] Trove Research (2021). “Future Demand, Supply and Prices for Voluntary Carbon Credits – Keeping the Balance”.

[2] Energy Transitions Commission (2018). “Mission Possible: Reaching Net-Zero Carbon Emissions from Harder-To-Abate Sectors by Mid-Century”.

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