Athens International Airport is not only the world's first BOOT* project in the airport sector but also a prime example of a successful public-private partnership. In February 2024, within the framework of the IPO of the Greek capital's airport, AviAlliance increased its stake to just over 50 percent, making it the airport's majority shareholder. The Hellenic Corporation of Assets & Participations holds 25.6 percent, while just under 24 percent is free float. Already in 2019, the concession was extended by a further 20 years until 2046.

The airport serving the Greek capital, which commenced operations in 2001, has been the frequent recipient of awards: Most recently, Athens International Airport was named the overall winner among all airports and categories at the Routes World 2025 Awards and also received the highest honor in the category of airports with more than 20 million passengers.

With the commissioning of an additional photovoltaic plant with a maximum output of 35.5 MWp and a battery storage system with a capacity of 82 MWh, the airport covers 100 percent of its electricity needs from its own renewable energy production and achieves a net-zero carbon balance. Athens International Airport is thus the first airport in Europe with an energy-autonomous electricity supply based on renewable sources. The total capacity of photovoltaic parks at the airport increases to 51.5 MWp, producing around 88,000 MWh annually, equivalent to the electricity consumption of approximately 22,000 households. Surplus energy is fed into the public grid.