NYC-based startup Sustain Exchange, LLC has secured $2m in seed funding to support its mission of creating positive change in transactions that align with the 17 UN Sustainable Development Goals (SDGs). The funding round was led by Jeff Hallstead. The company's platform, SustainAble Exchange, enables members to generate EnAble Tokens in transactions that promote sustainability and support the SDGs. The tokens are securely validated, stored and valued within the platform, and member companies can integrate with a digital wallet available on consumers' mobile devices. Transactions are recorded on the blockchain through a member portal, ensuring transparent and immutable tracking of sustainable actions.