In this research, we analyze the influence of the number of partners on joint venture survival. Our findings show that the higher the number of partners, the lower the probability of survival. However, for older joint ventures, a high number of partner increases the probability of survival. By considering this age effect, we propose to conciliate predictions from a transaction cost perspective, that suppose a negative influence of the number of partners on survival, and predictions from a relational view, that suppose a positive influence related to the combination of multiple resources.