Social problem solving has been regarded as the major trigger of entrepreneurial opportunity in new venture development. This is because social problems are all over the world which range from extreme poverty, hunger, poor sanitation, poor education, unemployment, violence, crime and drug abuse. Hence, social entrepreneurs make significant and diverse contributions to their communities by adopting business models to offer creative solutions to complex and persistent social problems. This study investigated how robust pro activeness influences social entrepreneurship venture creation with the moderating role of social networks. The study employed a descriptive survey with quantitative approach. A total number of 243 questionnaires were administered to owners of community based organizations (CBOs) drawn from Kampala district-Uganda. Analysis of data involved the use of statistical package for social sciences (SPSS version 22.0). Hypotheses were tested using hierarchical regression. Results revealed that there is a significant and positive relationship between pro activeness and social entrepreneurial venture creation. Also social networks and social entrepreneurial venture creation were positively related. Finally, there was an interaction between proactiveness and social networks which was also a significant predictor of social entrepreneurial venture creation of CBOs.Like any other research; this study is limited in the following ways. Since only a single research methodological approach was employed, future research could undertake a mixed approach and triangulate to validate the current findings. Further, a longitudinal approach should be employed to study personal initiative-social venture creation trends among CBOs over the years. Finally, factors identified in influencing social venture creation may not be sufficient enough in explaining the phenomenon. Based on the results, there are other factors that may contribute in explaining social venture creation of CBOs that were not part of this study.