Background: Today’s business environment is characterized by high competitiveness and fast-changing markets. Moreover, useful knowledge and expertise cannot only be found within a company but also outside the organizational boundaries. Therefore, a shift from closed and internal R&D processes to open and collaborative innovations with external sources can be noted in order to stay competitive. Purpose: The concept of open innovation is well researched by various scholars in the context of large organizations and SMEs. However, the link to family firms is often missing and under researched. Resulting of the importance of the “how” component in family firm research, it is interesting to see how family firms actually implement the concep...