This special issue of Service Science is devoted to investigating collaborative multiactor value creation in service innovation. Collaboration is an intrinsic technical characteristic of service. It has generated an abundant literature in economics and management science. Paradoxically, this fundamentally cooperative nature of service production fades and is much less explored when it comes to the issue of innovation in services. This underestimation of collaboration in the dynamics of innovation is closely linked to the underestimation, until recently, of innovation in services itself.