RG Line Oy Ab is a Finnish shipping company founded in 2001 that operates a ferry line between Vaasa, Finland and Umeå, Sweden.The company was founded in 2001 by well known Rabbe Grönblom, just months after Silja Line had put their traffic on Kvarken / Merenkurkku to an end because of a decision in the EU to stop taxfree sales on travels between member states.