Abstract
This article reports the results of an empirical study on the relationship between models of single- and multi-stakeholder governance and the competitive advantages of social enterprises (SEs). The results of the research show that SEs with models of multi-stakeholder governance perform functions which are different from those of single-stakeholder SEs. If contracting-out is to be managed efficiently and effectively, these differences must borne in mind and valorized according to the specific objectives of service outsourcing processes.