Patsky is the new CEO at Trillium Asset Mgmt.

Trillium Asset Management Corp., a firm with offices in Boston that focuses on "responsible and sustainable investing," said that Matthew Patsky has joined the firm as chief executive.

"His selection is the culmination of a comprehensive executive search, to help Trillium carry forward the vision and legacy established by Joan Bavaria, Trillium’s founder and an SRI pioneer, who passed away in 2008," the firm said in a press release; SRI stands for socially responsible investing.

Patsky has been actively involved in that space for 25 years, Trillium noted. Most recently, he was at Winslow Management Company in Boston, where he served as director of research, chairman of the investment committee, and portfolio manager for the Green Solutions Strategy and the Winslow Green Solutions Fund, Trillium said.

Trillium manages about $900 million in assets for institutional and individual clients. (Globe Staff)