Within Scandinavian working-life discourse, the notion of co-workership has become increasingly prominent. This article explores how the idea of co-workership has been implemented within two organizations and how it has been affected by various factors related to the implementation strategies that were used. Empirical data were collected from one County Council and one for-profit State-Owned Company through interviews with the managers of the co-workership programmes along with general managers and employees at an intensive care unit within the County Council and an Information Technology (IT) unit within the State-Owned Company. The findings indicate that compared to the top-down strategy used by the State-Owned Company, the implementation strategy adopted by the County Council, which was characterized by a high level of participation, local adjustment and integration of the idea of co-workership into daily work routines, resulted in a higher degree of implementation and development of co-workership practices. Finally, the implications of co-workership development work within organizations are discussed.