
Carbontribe is a climate tech startup focused on creating a sustainable world through innovative carbon finance solutions. Their patent-pending software leverages AI, blockchain, and Web3 technologies to digitize and verify carbon reduction projects, making participation accessible for individuals and businesses alike. By transforming environmental efforts into Carbon Removal Digital Assets (CRDAs), Carbontribe aims to streamline the carbon economy and ensure transparency and trust in carbon credits. Their diverse range of sustainability projects includes reforestation, mangrove restoration, and agricultural emissions reduction, positioning them as a leader in the emerging nature tech sector.

Carbontribe is a climate tech startup focused on creating a sustainable world through innovative carbon finance solutions. Their patent-pending software leverages AI, blockchain, and Web3 technologies to digitize and verify carbon reduction projects, making participation accessible for individuals and businesses alike. By transforming environmental efforts into Carbon Removal Digital Assets (CRDAs), Carbontribe aims to streamline the carbon economy and ensure transparency and trust in carbon credits. Their diverse range of sustainability projects includes reforestation, mangrove restoration, and agricultural emissions reduction, positioning them as a leader in the emerging nature tech sector.
What they do: AI + Web3 software that issues verifiable Carbon Removal Digital Assets and automates MRV for nature-based projects
Founded: 2023 (Tallinn, Estonia)
Founders / leadership: Keiichiro (Kay) Yano (Co‑Founder & CEO); Yuki Katoh (Co‑Founder & CTO)
Funding signal: Early VC (~€100k Jan 2024) and a Techstars‑led convertible note (announced Sep 10, 2024)
Nature‑based carbon removal, carbon finance, MRV automation
2023
Blockchain and Crypto
€100000
Dealroom lists an Early VC round of €100k dated January 2024
Convertible note announced/closed Sep 10, 2024; Techstars listed as lead/participating investor
Company announced a strategic investment from Greenway Grid Global (TEPCO group CVC)
“Techstars (accelerator / lead on convertible note) and strategic investment from Greenway Grid Global”