From an academic perspective, the role of communication in company management remains a topic of intense debate. However, by delving deeper into the issue from a strategic point of view one can see that hardly any empirical analysis comparable to other management realities can be found. The aim of this study is to analyse the structure and activity of the communications departments in the three leading companies in the Spanish telecommunications sector: Telefonica, Vodafone and Orange. For that purpose, a qualitative methodology was used based on questionnaires and interviews. Among the results, some of the indicators point to the complexity of the organization of the communications department, the importance of representation and participation by this department on senior management of the company, and the influence of communication on interdepartmental coordination.