This paper carries out a bibliographical review of the evolution of the individual level research, the new individual approaches and analyzes possible methods for the extension of entrepreneurship research to the organizational level. We also discuss about the suitability of the resource based view and network approaches. We review the management theories and paradigms which are capable of incorporating and linking individual and organizational level studies to the external context where entrepreneurs compete and seek opportunities. In this sense we refer to the resource based view and the network theory as they have been deemed the most adequate to incorporate micro level theories through a convergence of concepts, rather than by a combination or confrontation of ideas. The linking concepts of the individual and firm level theories are presented as an evolution of entrepreneurship research in a specific direction, showing the common ideas shared in the convergent point.