Switzerland
Swiss graphic design is famous and contagious, having been exported to America via the Yale/Basel Summer School. And of course across Europe too, even though the Swiss are reluctant to join the surrounding neighbors.
Designers

Anton Stankowski
1906 - 1998

Paul Klee
1879 - 1940

Paul Talman
1932 - 1987

Emmy Hennings
1885 - 1948

Celestino Piatti
1922 - 2007

Gunta Stölzl
1897 - 1983

Jan Tschichold
1902 - 1974

Johannes Itten
1888 - 1967

Rosmarie Tissi
1937 -

Max Bill
1908 - 1994

April Greiman
1948 -

Siegfried Odermatt
1926 - 2017

Emil Ruder
1914 - 1970

Armin Hofmann
1920 - 2020

Anna Monika Jost
1944 -

Maja Allenbach
1907 - 2002

Wolfgang Weingart
1942 - 2021