The demand for sustainable behavior in businesses and on financial markets has become increasingly urgent. Company law is particularly suited to promote both aspects, as it directly addresses companies as key players in the markets. Starting from the premise that a pure shareholder value orientation must be questioned, Anne-Christin Mittwoch examines which legislative instruments are available to promote corporate sustainability. One focus is the analysis of core concepts of corporate law that need to be re-evaluated in the light of the sustainability discourse.