Charter schools are founded on principles of autonomy, accountability, and parent and family choice. Charter school authorizers occupy a unique space at the nexus of these ideas, which allows them to take an active role to drive change to improve access and equity in schools. This chapter describes how one charter school authorizer planned for and implemented a successful diversity, equity, and inclusion initiative. The case study specifically outlines the approach of the Colorado Charter School Institute (CSI) in implementing equity audits to leverage data to build relationships and supports. Though the concept of analyzing equity data is not novel, the partnership approach employed by CSI to support, rather than evaluate, schools is uncommon. This approach has led to improvements in student outcomes and an increase in equity across the portfolio and can be applied by practitioners across many contexts, including district schools, nonprofits, and corporations seeking to improve both access and equity for diverse populations.