Christian Zabbal

Rob Day

Nikhil Garg

Mike Bishop


Gordon Fyfe

Rob m. Day, Partner

Rob Day is a Partner with Black Coral Capital, based in Boston. He has been a cleantech private equity investor since 2004, and acts or has served as a Director, Observer and advisory board member to multiple companies in the energy tech and related sectors, currently including Digital Lumens, Next Step Living, Noesis Energy and Powerit Solutions.

Rob serves as the Chairman of the Cleantech Open – Northeast Region. Rob was previously a co-founder of the Renewable Energy Business Network, a non-profit organization which was acquired in 2009 by the Clean Economy Network. Since 2005 he has also authored the website Cleantech Investing, which currently appears on  

Formerly a consultant with Bain & Company, Rob has worked with companies and evaluated private equity transactions in the energy/utilities, telecom, IT, medical/pharmaceutical, and retail industries. Earlier in his career, Rob was a member of the World Resources Institute's Sustainable Enterprise Program, where he co-authored the report The Next Bottom Line: Making
Sustainable Development Tangible

Rob received his MBA at the Kellogg Graduate School of Management (Northwestern University), and his BA at Swarthmore College.