This document provides definitions and examples of social enterprises, mutuals, and co-operatives. It explains that social enterprises aim to fulfill a social purpose through market-based mechanisms. Mutuals are organizations whose members benefit from the mutual's activities. Co-operatives are democratically controlled organizations where members have a say in how profits are used. Examples like The Co-operative Group and credit unions are provided. It is noted that these categories can overlap and that semantics are less important than focusing on outcomes for public services.