Kay runs Carbontribe Labs, a startup that develops dMRV (digital Measure, Report and Verification) and ReFi (Regenerative Finance) platform powered by satellite imagery and Computer Vision for faster, simple carbon credit generation. It also accelerates monitoring and prediction of carbon sequestration to ensure the quality of carbon credit. Prior to Carbontribe Labs, he used to manage an open innovation platform and web3 projects as an entrepreneur in Germany and Estonia. Prior to moving to Berlin in 2015, he was based in Tokyo, worked for Google, where he was responsible for the sales and partnership strategy of cloud computing services for the enterprise market. He holds an MBA from IE Business School.