Sacyr S.A. operates through three core business divisions: Concessions, Engineering & Infrastructure, and Water/Services. The Concessions division is the primary driver of the company's profitability, managing a diversified portfolio of long-term infrastructure assets such as highways, transport hubs, and healthcare facilities. The Engineering & Infrastructure segment undertakes civil engineering and building construction projects, supporting both its own concessions and third-party clients. Additionally, the company provides environmental services and manages integrated water cycles, including desalination plants. Sacyr has transitioned toward a predominantly concession-led business model, generating the vast majority of its EBITDA from these long-term assets while maintaining a robust construction backlog.