Carl Feinberg is a serial entrepreneur, investor, and philanthropist. Carl is the Founder and Managing Partner of Karellen Capital LLC, his family office, and is a Senior Advisor and Principal of Stride Capital LLC. Mr. Feinberg was the Founder and CEO of Relational Architects International (RAI), an enterprise software vendor whose products are part of the fabric of modern commerce, which was acquired by Broadcom. Feinberg also chaired Parker Infrastructure Partners, LLC, which brought to fruition mega projects, like the Tappan Zee and Goethals Bridge replacements and the Port of Miami Tunnel.

Carl is a member of the NYU President's Global Council, the NYU Arts and Science Board, the NYU Langone Chairmans Circle, the KITP Director’s Advisory Cabinet, the McDonald Observatory of the University of Texas, and the Economic Club of NY, and a former member of the Board of Trustees of the Institute for Advanced Study (IAS). Carl has endowed numerous professorships in theoretical physics and innovation. The Rees-Feinberg Chair at the University of Cambridge Center for the Study of Existential Risk (CSER) will be established in 2025 with Carl joining its Advisory Board, and the Carl P. Feinberg Center for Theoretical Physics will be inaugurated in 2026 at NYU. In addition, Carl supports research in the natural sciences at NYU, NYU Langone, Stanford, the University of Texas - Austin, the Center for Study of Existential Risks at the University of Cambridge, and the International Centre for Theoretical Physics (ICTP) in Trieste, Italy.