The airlines constitute the core business segment of the Lufthansa Group. Lufthansa Passenger Airlines, SWISS and Austrian Airlines enjoy an outstanding reputation in the market as quality airlines. The equity investments in Brussels Airlines and SunExpress round off the airline portfolio. In 2013, the airline group defended its leading role in Europe, again recording the greatest number of passengers and the highest revenue of any European airline. The Logistics segment is also a market leader in international airfreight. As well as standard freight, its product portfolio covers express freight and special cargo.