Diederik has been a recognized leader in sustainable business for more than 20 years. He joined BSR following a distinguished career, including several leadership roles as President, Europe at Glass Lewis & Co; EVP at Morningstar Sustainalytics; and Chair of US Social Investment Forum (US SIF). He currently serves as Chair of the Board at Knology, a nonprofit focused on knowledge and learning.
Throughout his career, Diederik has innovated and scaled organizations, serving in both client and member-centric roles, building the tools and capabilities that help investors and companies align their decisions with governance and sustainability priorities.
Prior to joining BSR, as President, Europe at Glass Lewis, Diederik oversaw the firm’s climate buildout and European business. In this role, he set up and launched Climate Intelligence, which uses human-centric AI to support analyst evaluations of corporate transition strategies and their execution.
Before joining Glass Lewis, as Founder and Principal at &values, Diederik partnered with leadership teams to navigate the complexities of sustainability and climate, regulatory shifts, and the use of AI. He also served as Managing Director of Corporate and Climate Solutions at Morningstar Sustainalytics, where he oversaw rapid growth and geographic expansion, and built out Sustainalytics' corporate solutions and climate offerings business.
Diederik has been a frequent speaker and lecturer at institutions including Yale University, Columbia University, and Bard College. His work has appeared in publications such as the Harvard Law School Forum on Corporate Governance and the Journal of Business Ethics.