Funds that focus on impact investing have enjoyed dramatic growth in recent years, with 69 percent having been launched since 2009, compared with just 13 percent before 2006, according to a study released this week by the Global Impact Investing Network.

Seventy-two percent of funds in the study are currently open, and only 8 percent are marked completed or closed, according to the study, which analyzed data from 310 impact investment funds that self-report information to the ImpactBase platform.