About
Diederik Timmer
Diederik Timmer is the President of Climate Solutions at Glass Lewis, where he is leading the development of an innovative climate research and data offering. This new product will integrate AI-driven ratings with expert analysis to provide comprehensive climate insights tailored to the needs of corporates, investors, and banks. Under his leadership, Glass Lewis Climate Solutions is positioning itself at the forefront of climate strategy assessments, leveraging technology and deep sector expertise to drive informed decision-making.
Before joining Glass Lewis, Diederik was a key executive at Sustainalytics, where he played a pivotal role in transforming the firm into a global leader in ESG ratings and research. As Head of Global Sales and Client Management, he drove market expansion and strengthened relationships with institutional investors, contributing to the company's significant growth and its acquisition by Morningstar in 2020. He later oversaw the Corporate Solutions team, expanding services for corporate issuers, and led the Climate Solutions team, where he was responsible for developing Sustainalytics’ climate-focused product suite.
Diederik serves on the board of Knology, a nonprofit research organization focused on applied social science. He also served as Chair of US SIF for seven years, leading the organization’s efforts to advance sustainable investing in the United States. A frequent speaker on sustainable investing, corporate climate strategy, and the role of AI in climate evaluations, Diederik is a recognized thought leader in the field.
