HOCHTIEF AirPort, together with its Irish partner Aer Rianta, holds 40 percent of the stock of Flughafen Hamburg GmbH (FHG). The airport site covers an area of almost six square kilometers, and more than 50 aircraft can be parked on it in parallel.

HOCHTIEF planned, financed, and built Athens International Airport jointly with two partners and the Greek state. The airport was completed in October 2000 after a construction period of only 51 months.