This article aims to highlight the main qualities of a leader, but also essential differences between the basic leader and manager characteristics, achieving a Sustainable Business Leadership profile which guarantees a sustainable entrepreneurship model. This study used a complex empirical research on a Romanian complex business leader based on six identified criteria (studied and assessed further to a SBL profile), analysing particular and general relevance of each, thus assuming all as essential in characterizing and promoting a SBL. Following the analysis, it has been stated that the six investigated criteria are defining and relevant to the objective assessment for the quality of a successful business leader. The research defined an improved SBL profile, applicable to any field of activity in any democratically governed country.