Joyce M. Ferris

Blue Hill Partners LLC (Blue Hill Partners)is a venture capital subsidiary of Blue Hills Management LLC founded in 2001 by Joyce M Ferris and Alan A. The firm is headquartered at Philadelphia, Pennsylvania.

Princeton Energy Systems, Inc. provides energy engineering, consulting, and project services. The company was founded by David J. Smith in 1999 and is headquartered in Philadelphia, PA.

E3 Og LLC provides services to commercial and retail banks. The company was founded by Sandy Wiggins and is headquartered in Malvern, PA.

Performance Systems Development LLC provides building-efficiency software products. It also offers a comprehensive approach to energy efficiency programs. The firm also offers targeted retrofit energy analysis tool, an energy audit software solution for energy analysis and building modeling; green energy compass that launches and manages an energy efficiency program; and building performance compass that provides commercial and multifamily building owners and portfolio managers a tool for benchmark building performance and tracking on-going energy use. The company was founded by Gregory Thomas in 1998 and is headquartered in Ithaca, NY.

Aircuity, Inc. provides intelligent indoor air monitoring systems. It provides building owners with energy savings through its measurement solutions and by combining real-time sensing and continuous analysis of indoor environments. Its Aircuity Advisor Services is a series of products that provide analysis of the critical environmental parameters in customer's facility and Aircuity Assurance Services. The firm’s services include sensor assurance, reporting, monitoring, and hardware assurance. The company was founded by Gordon P. Sharp, Eric M. Desrochers and David R. Belleville in 2000 and is headquartered in Newton, MA.

Spring Lane Management LLC (Spring Lane Capital) is a private equity firm founded in 2017 by Nikhil Garg, Christian Zabbal and Rob day. The firm is headquartered in Boston, Massachusetts.

Part of Metso Corp., Energy Products of Idaho, Inc. provides energy consulting services. The company is based in Coeur d'Alene, ID. Energy Products of Idaho was acquired by Outotec Oyj on December 30, 2011 for $91.54 million.