When competition was introduced, the local companies, e.g. Helsinki Telephone, formed the alliance Puhelinyhtiöt -- Finnet Group (previously called TeleGroup) -- to compete with the former government national carrier Sonera (Tele for short).
The independent, second GSM carrier Radiolinja is partly owned by Finnish investors and partly by regional telecomms.
Telia bought 75% of third carrier Telivo in August 1996 (news). Telivo has the third (DCS-only) Finnish DCS1800 license. It is very likely that Telia, which likes to define its home-market as the Baltic area, will try to win DCS licenses in Denmark and Norway too; the aim being to create a pan-Nordic mobile network.