Management Team

Thomas M. Zarrella

President and CEO

Thomas Zarrella was appointed President and CEO in July 2010. Prior to SustainX, from 2004 to 2009 he held leadership roles at GT Solar International, where he joined as President and COO and was made CEO in 2006. There he grew annual revenues from $9 million to $544 million, culminating in a successful IPO in 2008. Before GT Solar, Zarrella headed Schott Solar AG's U.S. manufacturing operations, where he was instrumental in transforming the R&D-oriented company into a full-scale manufacturer of photovoltaic products. Zarrella previously directed manufacturing and North American operations for Instron Corporation, and also held management positions at companies including Revere Corporation, Sprague Meter (Textron, Inc.), and Sikorsky Aircraft (United Technologies). Zarrella holds a Bachelor of Science in mechanical engineering from the University of Connecticut and an MBA from the University of Bridgeport.

Dax Kepshire

Vice President and General Manager

As Vice President and General Manager, Dax Kepshire, Ph.D. is responsible for managing SustainX’s day-to-day operations and is an active participant in developing the company's strategic direction. In 2007, while pursuing a doctorate at Dartmouth’s Thayer School of Engineering, he co-founded SustainX and served as its president until 2010. During that time, Dr. Kepshire secured a total of $11 million in Series A and non-dilutive funding, assembled the core engineering team, forged relationships with strategic partners, and positioned the company as a leader in compressed air energy storage. Prior to founding SustainX, his primary focus at Thayer was on medical device engineering; most notably the development of technologies for image-guided neurosurgery and small-animal molecular imaging. Dr. Kepshire holds a B.S. from Elizabethtown College and M.S. and Ph.D. degrees from the Thayer School of Engineering.