DEDICATED TO OUR 

CLIENTS' SUSTAINABILITY

OUR LEADERSHIP

OUR TEAM LEADERS

Stan Tolstunov

Vice President, Solar

Dave Hermantin

Vice President, Engineering

Eileen Quigley

Director, Client Sustainability

James Holton

Director, Operations

Brian DiBiase

Director, Field Operations

Mike Richter

President

Rob Krugel

Co-CEO

Konstantin Braun

Co-CEO

Mark Liston

Chief Sales Officer

Steven Berkenfeld

Chief Strategy Officer

OUR MISSION

We make buildings perform better

Our mission is to help our clients dramatically reduce their reliance on fossil fuels through a comprehensive approach to both energy efficiency and clean energy resources.  Our team is driven by a sincere desire to improve our clients' bottom line. We lead with our intellectual capital and invest our financial capital to accelerate the transition to a clean energy future.