Bus operating companies

Arriva Ltd. is a British multinational public transport company headquartered in Sunderland, England.

Eurolines is a brand of intercity bus service owned by an international non-profit organisation formed under Belgian law. While several bus operators have used the Eurolines branding in the past, the only operator that still uses the branding is UAB Kautra, which operates service between Lithuania and Estonia, Latvia, Ukraine, Belarus, and Poland.

Keolis is a French transportation company that operates public transport systems all over the world. It manages bus, rapid transit, tram, coach networks, rental bikes, car parks, water taxi, cable car, trolleybus, and funicular services. Based in Paris, France, the company is 70% owned by SNCF and 30% owned by the Caisse de dépôt et placement du Québec.

Ecolines is a brand of intercity bus service in Central and Eastern Europe, with operations by several carriers. Ecolines has a fleet of over 200 buses, with international routes primarily served by single-and double-decker coaches manufactured by MAN Truck & Bus, Neoplan and Setra.

Flibco, also known as Flibco.com or Flibtravel International, is a public transportation company that manages short-medium distance bus lines to airports especially in Europe. Flibco is part of Sales-Lentz Group (SLG). It is known in Germany, Belgium, Luxembourg, the Netherlands, Hungary, Italy and the United Kingdom.