Social entrepreneurship is analysed in different context and different viewpoints. The analysis still is vital and needed to be fulfilled in theoretical conceptual level becauseof different perceptions exist and scientific discussion in the theme still has unclear areas. In this paper it is just briefly emphasised some social entrepreneurship aspects that are important in developing research on synergy of social entrepreneurship, influence in different regions and environments. Especially the results could be applicable to such countries as Lithuania or Ukraine. The deeper analysis is social entrepreneurship stressing its importance for reducing poverty and social exclusion in the regions and countries could be important for economic and social development seeking for synergy of business and public sectors