Jorge Miarnau Montserrat

COMSA Group provides civil engineering and construction services, undertaking such projects as railways, highways, tunnels, buildings, and airports. The firm is based in Barcelona.

Trakcja Polska SA engages in the rail transport infrastructure construction market. The company's activities include modernization of the rail and tram tracks, construction and modernization of the traction networks and their power supply, construction of power engineering systems and remote control systems for traction power supply, the cubature construction for railway infrastructure and general construction industry. Trakcja Polska was founded on July 1, 1969 and is headquartered in Warsaw, Poland.

COMSA Corporación de Infraestructuras SL engages in the provision of engineering and construction services. It mainly operates in the fields of infrastructures and industrial engineering; services and technology; and concessions and renewable energy. Its projects include railway infrastructures, infrastructures civil works, aggregate and precast concrete, engineering, maintenance and services, environment, and machinery. The company was founded in 1891 and is headquartered in Barcelona, Spain.

Part of COMSA Corporación de Infraestructuras SL, Comsa Energías Renovables develops renewable energy. The company is based in Barcelona, Spain.

Iosa Inmuebles SL operates as an investment holding Spanish company.

Part of COMSA Corporación de Infraestructuras SL, Comsa Emte Concesiones SL is a Spanish company specialized in the development and execution of large infrastructures. Committed to continuous improvement, the company implements a management model to enhance the construction process. The parent company, COMSA Corporación, is a group dedicated to infrastructure development and industrial engineering.