The Bina Mina Village Unit Cooperative is an active cooperative in East Lampung Regency that was founded in 1975, but it has never been evaluated as successful using a tripartite approach, therefore the cooperative has no idea how successful its management. The goal of this research is to examine cooperative success from three perspectives (tripartite), namely cooperative success as a corporate entity, cooperative success in contributing to development, and cooperative success in delivering community benefits. The study employed a case study approach, which included direct interviews with five cooperative administrators and the completion of a questionnaire. The information was quantitatively examined using the 2015 Cooperative Rating Guidelines, which included five areas of cooperative institutions: business, finance, community benefits, and member benefits. The findings of this study show that cooperatives are successful as well-qualified commercial entities, contribute to well-qualified development, and provide benefits to non-qualified members.