This document provides information on several Canadian organizations involved in social impact measurement and social return on investment (SROI). It describes a meetup group in the Greater Toronto Area for those interested in social impact measurement and SROI. It also provides details on SIAA Canada, which is a network that offers training in impact analysis, the SROI Network Canada, which connects SROI practitioners through methodology calls and accreditation training, and the Canadian Evaluation Society, which has local chapters that provide professional development workshops. It concludes by mentioning an upcoming session at the Centre for Social Innovation to discuss questions about social impact analysis.