Cintra’s parent company, Grupo Ferrovial (www.ferrovial.com) is also publicly traded. Ferrovial was founded in 1952 and has a market capitalization of approximately $6.7 billion. Ferrovial has 49,000 employees in 12 countries, including the US, Canada, UK, Australia, Ireland, Poland, Portugal, Italy, and Chile. Other significant investments of Ferrovial are in the Bristol and Belfast (UK) and Sydney (Australia) airports. Ferrovial, through its subsidiary Amey (UK) is also involved in the maintenance and management of the London Subway.

[quoted from "Cintra/Zachry Team Fact Sheet," 11 Mar 2005]