Mark Lewis, Managing Director

Mark Lewis

Managing Director

Mark Lewis is a Managing Director with responsibility for investment sourcing, execution, and overall fund management. He currently serves on the boards of directors of Electric Power Engineers,, and Power TakeOff, and is a board observer at Aperia Technologies. Mark joined Lime Rock New Energy in 2018 and brings to this role a career in clean and renewable energy portfolio company management and operations, energy transition investing, and strategic energy technology acquisitions. Prior to joining LRNE, Mark served as President of TAE Technologies, Inc., a leading fusion energy technology development company. Previously, Mark served as CEO of ONEnergy, Inc., a diversified energy services company involved in energy retailing, commercial and industrial energy efficiency and distributed solar development.  Prior to ONEnergy, Mark was an investor and a Managing Director and Co-Chair of the Investment Committee at MissionPoint Capital Partners, an environmentally driven investment firm focused on financing the transition to a lower carbon economy. Earlier in his career, Mark served with General Electric in Europe and the US, including three years as the head of Global Business Development at GE Power (now GE Vernova). He was involved in over $15 billion of transactions during his career at GE.  Mark started his career in energy investment banking at Credit Suisse in New York and London. He previously served on the boards of directors of Qmerit, Smart Wires, Trilliant Networks, UpWind Solutions, ONEnergy, and OZZ Clean Energy.

Mark is a graduate of Western University (B.A.) and the Kellogg School of Management at Northwestern University (M.B.A.).