The purpose of this research is to find out the role of social entrepreneurship to promote social welfare of the community and what is the most effective way to do that This research used Neuro-Research method, which was a mixed method between qualitative method (exploration) and quantitative survey method (explanatory and confirmatory). The survey involved 50 presidents of foundations from all over Jakarta and 30 other participants. Content validity was determined via focus group discussion and construct validity using RASCH MODEL approach. The results indicated that the foundations which practised social entrepreneurship tended to be more innovative than those who did not. However, it was difficult to determine the social spirit and social mission of the foundations.