This paper documents the experiences of a group of parents who came together to form a human service cooperative in their local community to address the needs of their adult children with intellectual and developmental disabilities. Each parent felt that their child's needs were not (or could not be) met by existing providers. Parent leaders who formed the Board of Directors of the human service cooperative were interviewed, and key themes in the emergence and growth of the cooperative were identified. Issues in the development and implementation of innovative services and supports are summarized, and implications for policy, research, and practice are outlined.