Ernst is a Partner of Blue Bear and helps manage the firm’s investment activities. He has participated on the Boards of Directors of over thirty energy and technology companies, and is currently a director on the boards of Blue Bear portfolio companies Shoreline, Raptor Maps, Datch, EnMass, and Pani.

Ernst is co-founder and Director of Deep Green Solar, a provider of rooftop solar and energy storage solutions to schools and community organizations. He is also an Advisory Board member of Loyola Marymount University’s Master’s Degree program in Entrepreneurship and Sustainable Innovation.

Before Blue Bear, Ernst spent nine years at Riverstone, a leading energy specialist private equity firm with over $40 billion in assets under management covering over 120 companies. His work at Riverstone focused on investment in technology-enabled equipment and services businesses across the energy supply chain, as well as in energy storage and biomass start-up and scale-up operations. Since 2012 Ernst has been an active independent investor in technology-enabled businesses disrupting traditional industries. Previously, he worked in the Mergers & Acquisitions and Industrials teams at Citigroup covering the oil and gas, renewable energy, and transportation sectors. His transaction experience included supporting a public equity offering for a leading hydrogen fuel cell company and strategic review of several energy production and transportation businesses.

Ernst graduated with honors from Georgetown University with a degree in Science, Technology & International Affairs. He received his M.B.A. from Columbia Business School and London Business School through a joint degree program.