French farm machinery cooperatives (Cuma) are confronted with greater diversity in production systems. Little studied, the question of diversity in agricultural collectives is central to questioning the evolution and sustainability of cooperatives within their territory. Is it possible to work together with a diversity of systems and associated values? This work provides answers to this question through the analysis of two Cuma from the Tarn Region (France), which are characterized by a high degree of social and technical diversity. Agricultural diversity is expressed in different ways in the two cooperatives, depending on types of production, management methods and farm sizes. We find that members don't consider the experienced diversity as a threat for the collective, sometimes it is even perceived as a strength for the cooperative.