Neil Renninger, Angel Investor

Neil Renninger is founder and CEO of Ample Carbon, a climate-tech company repurposing coal power plants for biologically mediated direct air capture (BECCS/BiCRS) using purpose-grown crops, aiming to unlock gigaton-scale carbon removals while supporting rural communities. He also serves as a senior advisor to McKinsey & Company’s sustainability practice, and sits on the boards of CarbonBuilt and Ripple Foods. His career spans entrepreneurship, climate technology, and sustainable innovation, with a focus on carbon removal, food systems, and scaling solutions for environmental impact. As an angel investor, Renninger has supported Carba, a seed-stage company developing advanced carbon removal technologies designed to accelerate scalable, cost-effective climate solutions, contributing to its $6M funding round.