Alphabetical List of Mathematical Societies

Belarus Academy of Sciences
Belgium Academy of Sciences
Belgium Mathematical Society
Berlin Academy of Science
Bolyai Mathematical Society
Brazilian Mathematical Society
Bulgarian Academy of Sciences
Bulgarian Statistical Society
Bulgarian Mathematicians Union

Canadian Royal Society
Canadian Statistical Society
Canadian Mathematical Society
Catalan Society for Physics, Chemistry & Maths
Catalan Mathematical Society
Chilian Mathematical Society
Chinese Mathematical Society
Columbian Mathematical Society
Czech Academy of Sciences
Czech Mathematicians & Physicists Union

Danish Academy of Sciences
Danish Mathematical Society
Dutch Mathematical Society

Edinburgh Mathematical Society
Estonian Statistical Society
Estonian Mathematical Society
European Mathematical Society

Finnish Academy of Sciences
Finnish Statistical Society
Finnish Mathematical Society
French Mathematical Society

German Society for Applied Maths & Mechanics
German Academy of Scientists Leopoldina
German Statistical Society
German Mathematical Society
Göttingen Academy of Sciences
Göttingen Mathematical Society

Hamburg Mathematical Society
Hellenic Mathematical Society
Hong Kong Mathematical Society
Hungarian Academy of Sciences

Icelandic Mathematical Society
Imperial Academy of Sciences
International Mathematical Union
Indian Academy of Sciences
Indian Mathematical Society
Irish Academy
Irish Mathematical Society
Italian Mathematical Union
Italian National Academy of Sciences

Jagiellonian University Maths Society
János Bolyai Mathematical Society
Japanese Association of Math Sciences
Japanese Mathematical Society

Kaiser Wilhelm Society (Munich)
Kazan Physico-mathematical Society
Kharkov Mathematical Society
Korean Statistical Society
Korean Mathematical Society

Mathematical Association of America
Malaysian Mathematical Society
Max_Planck Society for the Advancement of Science
Mexican Mathematical Society
Moscow Mathematical Society

National Academy of Sciences (United States)
New York Academy of Sciences
New York Mathematical Society
New Zealand Mathematical Society
Norwegian Academy of Science & Letters
Norwegian Mathematical Society

Palermo Mathematical Circle
Paris Academy of Sciences
Petrograd Physico-Mathematical Society
Philippines Mathematical Society
Plato's Academy
Polish Academy of Sciences
Polish Mathematical Society
Portuguese Mathematical Society

Quebec Mathematical Association

Ramanujan Mathematical Society
Romanian Mathematical Society
Royal Astronomical Society
Royal Belgium Academy of Sciences
Royal Danish Academy of Sciences
Royal Irish Academy
Royal Statistical Society
Royal Society (London)
Royal Society of Canada
Royal Society of Edinburgh
Royal Swedish Academy of Sciences
Russian Academy of Sciences

Scientific Research Society of Zurich
Serbian Society of Mathematicians & Physicists
Serbian Academy of Sciences
Slovak Academy of Sciences
Slovak Mathematicians & Physicists Union
Slovenian Society of Mathematicians, Physicists & Astronomers
Société de Mathématique Appliquées et Industrielle
Society for Industrial and Applied Mathematics (SIAM)
South African Mathematical Society
Spanish Academy of Sciences
Spitalfields Mathematical Society (London)
St Petersburg Academy of Sciences
St Petersburg Mathematical Society
Statistical Royal Society
Swedish Academy of Sciences
Swedish Mathematical Society
Swiss Academy of Natural Science
Swiss Mathematical Society
Swiss Statistical Society

Trinity College Dublin Mathematical Society
Tokyo Mathematical Association
Tokyo Mathematical Society
Turin Mathematical Society
Turkish Mathematical Society

Ukrainian Academy of Sciences
Union of Bulgarian Mathematicians
Union of Czech Mathematicians & Physicists
USSR Academy of Sciences

Vietnamese Mathematical Society

Warsaw Scientific Society

Zurich Scientific Research Society

1. University of Waterloo
   
2. Penn State University
   
3. European Mathematical Society list