Social networks are commonly seen as a global trend that allows users to search and contact others with similar interests, write a post, reply, like or share content, create groups and organize events. This said, there is much more that can be done to exploit the full potential of social media. In order to improve the business, providing employees, customers and partners the best tools to cooperate and gain value from the whole community, many organizations are taking the matter in their own hands, using Enterprise Social Networks. Close analysis of case studies and comprehensive statistics shows why it is important to pursue this path. At CERN, the European Organization for Nuclear Research, where the number of employees, students and volunteers that everyday work in partnership both on site and through the network reaches the thousands, a new kind of platform has been deployed, able to exploit the social knowledge of the personnel. The thesis will describe the case study of CERN to understand not only why it is essential to become a social organization but also how a social environment can be developed. The last chapters will focus on examining my work on the platform, considering a mobile responsive design, realised to make the environment adapt to any screen size, an integrated resource planning tool, which gives the scientists the mean to easily manage the everyday work on the particle accelerators, and the platform’s Application Programming Interface, which allows anyone with the right credentials to include content from the enterprise social network into a personal or departmental webpage, giving everyone an even easier way to participate.