This study examines the impact of different degrees of organizational coupling among the members of innovation alliance project networks on the commercial performance of collaborative innovations. Specifically, we study how type of innovation (modular vs. architectural innovation) moderates this relationship. Using data from 664 product innovation networks from five different industries in the United States, we find that the degree of organizational coupling among innovation network members significantly affects the commercial performance of collaborative innovations and that the type of innovation has a significant moderating effect. More specifically, the impact on commercial innovation performance of organizational coupling is positive for modular innovations and negative for architectural innovations.