Aerial view of forest and agricultural land

Make confident carbon project investments

Our pre-verification assessments apply our rating frameworks to evaluate project risks and deliver a rating outlook

Gain clarity on project risks, before you commit

Identify risks and opportunities early, so you can prioritize the most promising carbon projects and avoid costly surprises.

Risk level

Red flags

Information gaps

Trusted by leading buyers and project investors

"Calyx Global's deep expertise in GHG integrity and safeguards gives us confidence in our nature-based solutions project evaluations. They help us identify quality opportunities and navigate risks from the very beginning of the development process."

Phillip Goodman

Director, Carbon Removal Portfolio at Microsoft

"The assessments gave us a perspective of the communal relations, things happening on the ground that we wouldn't have otherwise seen."

Jacob Bourgeois

Head of Operations Strategy and Innovation

Choose the level of diligence that's right for you

Get just the red flags or dive deep with a full assessment and rating outlook. You can focus on GHG integrity, or expand to cover SDG impact and environmental and social risks.

Red Flag Review

An initial screening that helps you decide whether to proceed with further diligence.

• Flags material concerns that could undermine quality
• Identifies critical information gaps to clarify before proceeding
• Provides the full possible rating range, so you know the best- and worst-case outcomes
• Ensures your resources are focused on the most promising projects

Rating Assessment

A comprehensive analysis that provides confidence in a final investment decision.

• Gives you a thorough view of project quality across all criteria used in our rating frameworks
• Provides a rating outlook (the most likely rating range) and explains the factors behind it
• Helps you structure stronger contracts with developers by clarifying important quality requirements
• Highlights upside and downside risks – including GHG integrity and environmental and social risks – that could shift project quality

Designed for buyers and investors

Pre-verification assessments are built for forward buyers and investors who need clarity and confidence before committing capital. To safeguard our independence, we do not sell these assessments to project developers.

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Risk assessment visualization showing red flags, information gaps, and preliminary risk level