Semel Oy provides mobile information systems and software in Finland and internationally. The company also provides system and software integration services in demanding mobile system ventures. Semel Oy has subsidiaries in Sweden (Halda AB www.halda.se) and Estonia. The company was founded in 1971 and is headquartered in Vantaa, Finland. Semel Oy is the leading information system provider for the taxi business in the Nordic countries. The company is a member of the international KGK Group.