Mark Hartney

Mark Hartney is a Principal at Breakthrough Energy Ventures based in Lisbon, Portugal. At the climate technology venture capital firm, which was founded by Bill Gates and a coalition of private investors in 2015, he operates as an investment principal and dedicated company builder. He identifies and supports entrepreneurs developing clean energy and emissions reduction technologies across multiple sectors, including mobility, agriculture, the built environment, and manufacturing. Prior to his current position, Hartney gained relevant industry experience working at Powerhouse, an innovation firm and venture fund dedicated to clean energy and mobility startups. His daily work involves guiding portfolio companies through various stages of corporate growth, from early technological discovery to large-scale commercial deployment. Hartney currently focuses his efforts on financing and scaling early-stage enterprises that address global greenhouse gas emissions through advanced engineering and materials.