None.
Switzerland and Finland are too far apart for any country to share a border with both of them.
Estonia
And (slightly) Russia
Russia.
Russia
Russia borders Finland.
Russia
Russia borders the eastern border of Finland
Russia borders the eastern border of Finland
Finland
Russia.
Finland shares borders with Russia in East, Norwar in North, Sweden in West and Gulf of Finland in South.
Russia to the East
nigeria
Sweden, Finland and Russia all shares borders to the east of Norway.
Russia or U.S.S.R
Sweden has land borders with Finland and Norway. It also has a connection with Denmark via the Øresund Bridge.