Finavia Oyj, formerly the Finnish Civil Aviation Administration, is the public limited company responsible for maintaining and developing Finland's airport network. Finavia manages and develops 20 airports around the country, 18 of which primarily serve commercial flights and 2 of which focus solely on military and general aviation. Finavia is owned by the Finnish Government. Finavia's headquarters are located on the grounds of Helsinki Airport. Kimmo Mäki started as Finavia's CEO January 1, 2018. The Prime Minister's Office is responsible for Finavia's ownership steering and oversight. In 2019, 26 million passengers used Finavia's airports, with Helsinki Airport, Finavia's main airport, constituting 21.9 million of those. Helsinki Airport is an important transfer hub in Northern Europe, especially for Asian transfer passengers. Operations Finavia's customers are airlines, other operators in the sector, as well as passengers. Finavia's main business units are Helsinki Airport and the airport network in Finland. Finavia's daughter companies are Lentoasemakiinteistöt Oyj, a real estate company and Airpro Oy, a company providing ground services for airports and airlines. Finavia's main services for airlines and passengers are: Airports: airport services, maintenance of runways and terminals, ramp handling and security check services. Real estate operations (through Lentoasemakiinteistöt Oyj): Leasing commercial premises at the airports and in their vicinity. Ground services and security check services for air traffic (through Airpro Oy). Finavia used to also take care of Finland's air navigation, which was separated as its own business for Air Navigation Services Finland in the beginning of April, 2017 Network The airport network supported and developed by Finavia is composed of 20 airports in Finland. Finavia's largest civilian airport by number of passengers is Helsinki Airport (18.9 million passengers in 2017). Finavia maintains 20 airports in Finland: Helsinki Airport Oulu Airport Rovaniemi Airport Turku Airport Vaasa Airport Kittilä Airport Tampere Airport Kuopio Airport Ivalo Airport Joensuu Airport Jyväskylä Airport Kajaani Airport Kokkola-Pietarsaari Airport Mariehamn Airport Savonlinna Airport Pori Airport Kemi-Tornio Airport Kuusamo Airport Halli Airport Utti Airport Snow removal Finavia's airports are recognized for their snow removal capacity and expertise on dealing with harsh snow conditions at airports. Finavia invests especially in the 24/7 availability of winter weather and airfield maintenance. The unusually large snowfalls in the winter of 2010–2011 in Europe brought chaos to many airports in Central Europe, with many airports shutting down temporarily. Despite these snowfalls, Finavia's airports remained operational throughout the entire winter. Finavia and Helsinki Airport's snow