This article aims to address the reconfiguration of the exercise of power and governance by new international actors. Initially, the power is identified in both conflictual relations as in consensual, presenting him with a bifronte categorization: power on and power to. Still, it is the conceptual shift that involves governance, showing that the authority may be exercised independently of the will of States, presenting it as governance with and without government. Finally, it is shown that the new players, especially non-governmental organizations and transnational corporations exert significant role in the political landscape of contemporary international society, whose national borders have every day lost importance.