Calyx Global
Calyx Global is a ratings agency known for conservative, human-expert assessments that score credits on both a GHG (climate integrity) axis and an SDG (sustainable development) axis.
Calyx GlobalInside Calyx Global
Calyx rates credits along two distinct axes, a GHG rating for climate integrity and an SDG rating for sustainable-development contribution, an approach well matched to nature-based projects with community co-benefits.
In January 2025 it moved to an AAA to D scale grouped into three tiers, and by 2026 held more than 1,000 GHG and 500 SDG ratings.
Its ratings are now delivered on the Bloomberg Terminal alongside project, pricing and market data following a January 2026 collaboration.
How Straatos integrates Calyx Global
A downstream ratings consumer whose SDG axis maps directly onto Straatos benefit-sharing evidence.
Surface dual ratings
Display the GHG and SDG ratings side by side in the project record so buyers see climate and community quality together.
Evidence the SDG axis
Feed Witness community-monitoring and benefit-sharing records that substantiate the sustainable-development claims Calyx assesses.
Conservative cross-check
Use Calyx as an independent, conservative second opinion alongside other agencies to corroborate a project’s standing.
Recent developments
- Jan 2026Ratings began delivery on the Bloomberg Terminal via a collaboration with Bloomberg.
- Jan 2025Moved to an AAA to D rating scale grouped into three integrity tiers.
Run Calyx Global inside Straatos
See how a project running on Straatos puts Calyx Global to work alongside every other source: field, satellite and community.