Broadly speaking, Corporate Social Responsibility (CSR) is an umbrella term referring to business practices that:

Are carried out for social or environmental purposes; Are voluntary as not prescribed by law. In addition, many definitions of CSR distinguish it from philanthropy, emphasizing that CSR is generally related to the firm’s core business and contributing to its profitability. CSR, so understood, can be conceptualized as a set of practices integrating social, environmental and profit-related considerations.

The ISO 26000 norm, one of the most widely adopted CSR standards, explicitly links CSR with Sustainable Development, by defining it as “the responsibility of an organization for the impacts of its activities on society and environment, through transparent and ethical behavior that contributes to sustainable development