The code for Collaboration @ scale
The code for Collaboration @ scale
Our mission
CodeGreen builds digital infrastructure to enable collaborative solutions to global challenges. Entrusted by the UN, governmental bodies, and the private sector, we engineer decentralized systems that enable data sovereignty and privacy, while ensuring immutable trust, security, and stability. While our initial efforts focus on facilitating collaborative action on climate, our core technologies have been designed to bridge the digital divide and foster a level playing field to advance global prosperity.
Solving the data trilemma facilitates collaboration at scale


Provable Records & Auditability
Immutable trust enables efficient collaboration in mission critical settings by holding all parties accountable to each other and to authorities.

Selective Sharing & Permissioning
Fine-grained access control functionality increases willingness to collaborate by protecting sensitive information and business edge.

Regulatory Compliance
Decentralized KYC and data sovereignty align with the EU GDPR and proactively achieve the widespread intentions of international regulators.

Inclusivity & Equity
Decreasing the reliance on centralized parties encourages inclusive participation and distributes generated value more evenly.
OUR LEADERSHIP


Schrasing Tong
Co-Founder & COO
Schrasing is a member of the Decentralized Information Group at MIT and one of the co-founders of Hashgreen. He is an experienced solution architect and product manager who transforms business insights into technical solutions to foster scalable and inclusive ecosystems.
Neil Cohn
Co-Founder & CEO
Neil is a blockchain and sustainable finance expert who was instrumental in developing the early markets for carbon and renewable energy. Neil’s recent innovations have been collaborations with the World Bank, Costa Rica, and the IFC on foundational infrastructures for climate finance, with a goal of accelerating the transition to a more equitable global economy.
Dr. Harry Hsu
Co-Founder & CTO
Harry is a MIT computer scientist, former Physics Olympiad Winner, and the brains behind Hashgreen. He possesses deep technical expertise in blockchain technology, AI/ML, and industrial-grade software systems and a passion for leveraging them to solve complex business challenges. Harry played a pivotal role in designing core systems for tokenized carbon asset lifecycles for the World Bank.
Schrasing Tong
Co-Founder & COO
Schrasing is a member of the Decentralized Information Group at MIT and one of the co-founders of Hashgreen. He is an experienced solution architect and product manager who transforms business insights into technical solutions to foster scalable and inclusive ecosystems.
Neil Cohn
Co-Founder & CEO
Neil is a blockchain and sustainable finance expert who was instrumental in developing the early markets for carbon and renewable energy. Neil’s recent innovations have been collaborations with the World Bank, Costa Rica, and the IFC on foundational infrastructures for climate finance, with a goal of accelerating the transition to a more equitable global economy.
Dr. Harry Hsu
Co-Founder & CTO
Harry is a MIT computer scientist, former Physics Olympiad Winner, and the brains behind Hashgreen. He possesses deep technical expertise in blockchain technology, AI/ML, and industrial-grade software systems and a passion for leveraging them to solve complex business challenges. Harry played a pivotal role in designing core systems for tokenized carbon asset lifecycles for the World Bank.
WHO WE WORK WITH











