Fritz Hansen, Royal Copenhagen, Georg Jensen and Poul Kjærholm, Børge Mogensen, PH and more...
Arne Jakobsen
Hans Wegner
Kaare Klint
Finn Juhl
Hay
Kaj Franck
Poul Henningsen
Verner Panton
Børge Mogensen
Kay Bojesen
Kaspar Salto
Georg Jensen, Arne Jacobsen, Bang and Olufsen,
I'm afraid my knowledge only goes as far as IKEA, Lego and Lurpak! I'm have seen shops selling Scandinavian furnishings, but I can't remember the individual brand names.