Information Note of the workshop Advancing Entrepreneurship and Start-up Initiatives for Sustainable Chemistry: Learning from Case Studies, organized by UN Environment and the International Sustainable Chemistry Collaborative Center (ISC3), hosted by the Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ), in partnership with the United Nations Industrial Development Organization (UNIDO), the German Chemical Society, the Freie Universität Berlin and the United Nations Institute for Training and Research (UNITAR).