Women are important actors in smallholder farmer milk production. Therefore, female input in the dairy cooperatives is essential to dairy development in emerging economies. Within dairy value chains, however, their contributions are often not formally acknowledged or rewarded. This article contributes to filling this gap by adopting a multileveled institutional perspective to explore the case of dairy development in the Pangalengan mixed-sex dairy cooperative on West Java, Indonesia. The objective is to add evidence from the dairy development practice in Indonesia to the current agenda for gender and development as well as identify pathways for future research on dairy development that will help it do better in practice. Central to the exploration is a discussion of formal and informal institutions as part of the dynamics of the inequality regimes in dairy cooperatives. Evidence from dairy development practices in the Pangalengan cooperative shows, among others, distinct differences between the participation of male and female target groups in dairy development extension, as well as farm size- and resource-related trends in ‘masculinization’ and ‘feminization’ of the smallholder farmer household. The conclusions contribute to debates on more resilient, thus sustainable working relations in food chains, women’s empowerment, gender equality and social justice in agriculture as well as cooperative studies