This thesis contributes to the lacking scientific literature on the motivational values of social entrepreneurs, as well as to the newly arising literature on New Business Models. Through interviews with multiple support organizations, social entrepreneurs’ main motivational values are derived and mapped, then visualized within the Schwartz structure of human motivational value types. Furthermore, the main external actors involved with social entrepreneurship are presented, as well as the most common issues encountered among social entrepreneurs when scaling up their enterprises. By connecting these issues to the motivational value types of both social entrepreneurs and actors, the main (motivational and practical) issues currently hindering social entrepreneurs from scaling up are discovered. The development of New Business Models is believed to be potentially boosted through more practical experience with social entrepreneurs’ hybrid financing and business models. This thesis therefore concludes with multiple constructive, generalizable advices to address these issues and thereby stimulate social entrepreneurship.