**Abstract**

This chapter illustrates the case of the Spanish company *Telefónica* SA, a world leader in the telecommunication industry. The main research question is to understand if social responsibility can play a main role in an uncertain scenario. Or better, understand how Corporate Social Responsibility (CSR) can be organized, managed, and measured to be considered a sustainable choice detached from any greenwashing policy. In terms of the socioeconomic environment with the combination of external social and economic conditions that influence the operation and preformation of an organization, the company should be a system not only capable of generating profits but at the same time contributing to society and environmental protection, integrating social responsibility as a strategic investment in the framework of their competitive strategy, in their management tools and their operations. The analysis of this case study aims to offer a model of CSR analysis and measurement tools such as the social report for managers who will have to face the important challenges of sustainable growth in compliance with the 2030 Agenda and SDGs paradigm (Sustainable Development Goals).

**Keywords:** corporate social responsibility, sustainability reporting, social report , business ethics, environmental, social, and corporate governance
