Cadagua, a Ferrovial company
Civil EngineeringBasque Country, Spain201-500 Employees
Cadagua, a Ferrovial company, operates in civil engineering with a focus on the design, construction, and operation of water treatment facilities. With nearly five decades of experience, it has completed more than 400 projects across industrial facilities and urban environments, addressing water supply, environmental protection, and pollution prevention. Based in Bilbao, Basque Country, the firm is a mid-sized player in the water infrastructure sector. In February 2026, Ferrovial announced a collaboration with Cadagua that forms a joint venture intended to combine Ferrovial's local expertise with Cadagua's international experience to streamline design, construction, and operating efficiency.