Hellenic Mathematical Society was created in 1918.
Hellenic Philotelic Society was created in 1925.
Hellenic Society for Systemic Studies was created in 2003.
Society for the Promotion of Hellenic Studies was created in 1879.
Norwegian Mathematical Society was created in 1918.
Danish Mathematical Society was created in 1873.
Moscow Mathematical Society was created in 1864.
Edinburgh Mathematical Society was created in 1883.
Mathematical Society of Japan was created in 1877.
Cyprus Mathematical Society was created in 1983.
Indian Mathematical Society was created in 1907.
Portuguese Mathematical Society was created in 1940.
Swiss Mathematical Society was created in 1910.