Andrew Niebler is a business and securities attorney with extensive experience at the intersection of law, finance, and environmental sustainability. He is Co-Founder and General Counsel of Karner Blue Capital, LLC, recognized as the 2023 Environmental Finance IMPACT Asset Manager of the Year for its pioneering biodiversity-focused investment strategies. At Karner Blue, he helped design an innovative research and portfolio construction process centered on publicly-traded companies and worked with a select group of investment advisers to launch Nature Action 100, a global initiative advancing biodiversity and climate action.

Andrew also co-founded and served on the board of a nonprofit promoting humane business practices, and previously served as General Counsel and Senior Vice President of Calvert Investments, Inc., a leader in sustainable and socially responsible investing. Earlier in his career, he practiced corporate and securities law at Cleary Gottlieb Steen & Hamilton LLP and worked as an economist and foreign exchange trader at the Federal Reserve Bank of New York.

He earned his J.D. from Georgetown University Law Center and his A.B. in Economics from Princeton University, and is admitted to practice law in Maryland, New York, and the District of Columbia.