Peer-reviewed, three-phase approach incorporating program, methodology and project-level analysis of greenhouse gas risks
Three pillar project-level analysis of quality that evaluates greenhouse gas risks, environmental and social risks and SDG impact claims with unmatched depth
Find quality through unmatched depth and breadth of coverage
Largest number of rated carbon credit types, from nature to
technology-based projects
The most carbon projects rated of any carbon credit ratings agency
at over 500, and counting
We bring awareness to high impact, emerging credit types
800+
GHG ratings
350+
SDG ratings
20+
Project types rated
Featured report
The State of Quality and Pricing in the VCM, 2025
Quality and confidence are necessary to turn the VCM into a thriving market that delivers large-scale, impactful climate action. So how is the market doing in its effort to course correct?
Get insights and analytics only carbon insiders can provide
Tailored, unbiased research from carbon market professionals
Research analysts with first-hand experience in countries where projects happen
Independent oversight panels of leading scientists, academics and carbon accounting and methodology experts
Leading companies choose us
‘We value Calyx’s rigorous, evidence-first approach to ratings and exceptional client service.’
‘Understanding the integrity and impact of carbon projects can be challenging. The ratings and reports of Calyx Global are a great supplement to our own due diligence process. We value the expertise that the Calyx Global team brings.’
‘The rich expertise and experience of the team at Calyx Global has helped us understand projects not only from a scientific perspective, but also with assessed evidence of co-benefit impact.’
‘Their service allows us to compare ratings across a wide range of carbon credits.’
How we help
Sustainability teams
Our methodical vintage-level evaluation of over 800 emission
reduction and removal claims, over 350 Sustainable Development Goal
contribution claims and environmental and social risks allows you to
easily find reliable carbon credits that bring you and your
stakeholders confidence.
Traders and brokers
Calyx Global analytics, ratings and research are here to help you
discover hidden opportunities that deliver real value for your
business, your clients and the planet.
Carbon marketplaces and exchanges
Our carbon credit ratings can help you find and showcase
high-quality supply, and offer users a richer decision-making
experience when you display them on your platform.
Our exceptionally demanding review process together with research
and carbon market insights will ensure you have the information you
need to make sound decisions that safeguard the value of your
portfolio and the bottom line.
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Research and analytics to stay on top of the market
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