Sakis is a co-founder and the CEO of RGS. Sakis has extensive experience in developing ESG strategies for investors and companies, having previously co-founded KKS Advisors, a leading advisory firm helping clients on innovative solutions to more sustainable business models and communities. He has been a senior advisor on ESG integration to organizations around the world, having accrued significant experience in building new ESG datasets and developing measurement frameworks. He also serves as a Senior Advisor to Dupont Sustainable Solutions. Sakis holds a PhD in material science and engineering from Imperial College London.