The Collective Efficacy in Action: Community Growing Community (CG) at Generation Pledge (GP) program is a 12-month plan designed to support cohort members of the CGC to advance the mission of GP. GP is a not-for-profit services organization with a unique mission: to act as a trusted advisor to inheritors of material wealth who are inspired to make considerable donations of their resources toward creating a better world – in other words, GP helps inheritors navigate the complexities of making an impact. The CGC comprises a subset of GP members who are interested in further advancing the vision and mission of GP through the CGC. The 12-month program utilizes the positive psychology construct of collective efficacy as its theory of change model and the program comprises two sections that build upon each other: i) the activation planning phase and ii) the activation phase. The activation planning phase guides members through a process to prepare an individualized, written activation plan that members can leverage and execute against during the activation phase. The program comprises 12 monthly meetings, each with a specific agenda including positive interventions tailored for improving collective efficacy, a workbook to guide members in documenting the activation plan, along with related support materials to guide GP in its curation of the meetings.