Douglass Winthrop


Our team works hard to foster a culture of unwavering commitment to putting our clients’ interests first.

Daniel R. Abbasi

Managing Director

Dan is a Managing Director at Douglass Winthrop Advisors, LLC, where he oversees the firm’s Environment Strategy. Dan’s background at the intersection of business and the environment spans leadership roles in investing, manufacturing, academia, the non-profit sector and the federal government.

Prior to joining DWA, Dan was a Director at cleantech private equity firm MissionPoint Capital Partners. He co-founded and later served as CEO of Flowcastings GmbH, an innovative manufacturing company enabling efficiency gains in the power and aviation sectors. He also held strategy and operating positions in two Fortune 500 media companies.

Dan served as an appointee at the U.S. Environmental Protection Agency, where he played a key role in launching public/private partnerships to invest in environmental technologies. He was later appointed to the advisory committee of the U.S. National Climate Assessment.

Dan won an Emmy Award as Executive Producer of the Showtime TV series, Years of Living Dangerously, which communicated climate change impacts and solutions to a U.S. and global audience. Most recently, Dan was appointed a Senior Fellow at Conservation International, where he developed a platform for evaluating corporate sustainability with philanthropic support from the Hewlett Foundation and ClimateWorks Foundation. He was Associate Dean at the Yale School of Forestry and Environmental Studies. He serves on the board of the Institute of Transportation and Development Policy.

Dan received his AB, magna cum laude, from Harvard College in 1986 and his MBA in 1998 from Harvard Business School. He also received an MA and PhD from Stanford University.