• American Mathematical Society
• AIP, The American Institute of Physics
  
• Association of Christians in the Mathematical Sciences
• Association for Symbolic Logic
• Association for Women in Mathematics
• Australian Mathematical Society
• Belgian Mathematical Society
• Belgisch Wiskundig Genootschap
• Berliner Mathematische Gesellschaf
• Bulgarian Academy of Sciences
• Canadian Mathematical Society
• CIRM , Mathematics and Mathematicians in France.
• Los Alamos National Laboratory CNLS, Center for Nonlinear Studies.
• Central Oklahoma Association of Teachers of Mathematics (COATM)
• Consiglio Nazionale delle Ricerche
• The Computing Research Association (CRA)
• Danish Mathematical Society
• Deutsche Mathematiker-Vereinigung (DMV)
• DIMACS, The Center for Discrete Mathematics and Theoretical Computer Science
• Edinburgh Mathematical Society
• European Mathematical Society (EMS)
• European Research Consortium for Informatics and Mathematics (ERCIM)
• European Women in Mathematics (EWM)
• Euro-Math-Job, listings from the European Mathematical Society
• Fields Inst The Fields Institute for Research in Mathematical Sciences
• Hong Kong Mathematical Society
• Illinois State Academy of Science
• Institute of Mathematics and its Applications (Southend, England)
• International Linear Algebra Society
• International Mathematical Union (IMU)
• International Society of Dynamic Games
• International Association of Mathematical Physics
• IAS, The Institute for Advanced Study (Princeton).
• ICTP Trieste
• IHES Institut des Hautes Etudes Scientifiques
• IMA The Institute for Mathematics and its Applications (Minneapolis).
• IMU, International Mathematical Union.
• Kappa Mu Epsilon
• London Mathematical Society
• MAA, Mathematical Association of America
• Mathematische Gesellschaft in Hamburg
• Mathematical Institute of the Hungarian Academy of Sciences
• Mathematisches Forschungsinstitut Oberwolfach
• Max-Planck-Institut-fur Mathematik (Bonn)
• MSRI, Mathematical Sciences Research Institute (Berkeley).
• National Academy of Sciences
• National Academy of Sciences of Armenia Institute of Mathematics
• National Association of Mathematicians (USA)
• National Science Foundation
• NSF Science and Technology Information System (STIS)
• New Zealand Mathematical Society
• Die Österreichische Akademie der Wissenschaften
• Pi Mu Epsilon
• Real Sociedad Matematica EspaÒola
• Russian Academy of Sciences, Department of Mathematics
• Russian Academy of Sciences, IPS, Mathematical Branch
• St. Petersburg Mathematical Society
• SociÈtÈ MathÈmatique de Belgique
• Society for Industrial and Applied Mathematics
• SIAM's Undergraduate Page
• Société de Mathématiques Appliquées & Industrielles
• Sociedad de Matemática de Chile
• Société Mathématique de France
• Swiss Mathematical Society
• Schweizerische Mathematische Gesellschaft
• SociÈtÈ MathÈmatique Suisse
• SIGACT, the Special Interest Group on Algorithms and Computation Theory
• SIAM The Society for Industrial & Applied Mathematics.
• ESI Erwin Schrodinger International Institute for Mathematical Physics (Vienna)
• Steklov Mathematical Institute
• Turkish Mathematical Society
• Union Matematica de America Latina y el Caribe
• Unione Matematica Italiana

AMA American Mathematical Society "The American Mathematical Society was founded in 1888 to further mathematical research and scholarship. The Society currently has approximately 30,000 members throughout the United States and around the world. It fulfills its mission through programs that promote mathematical research, increase the awareness of the value of mathematics to society, and foster excellence in mathematics education.

IEEE Computer Society
"With nearly 100,000 members, the IEEE Computer Society is the world's leading organization of computer professionals. "

MAA, Mathematical Association of America
"The Mathematical Association of America (MAA) is the world's largest organization devoted to the interests of collegiate mathematics. .."

DIMACS, The Center for Discrete Mathematics and Theoretical Computer Science "The Center for Discrete Mathematics and Theoretical Computer Science (DIMACS) is a collaborative effort of Rutgers and Princeton Universities, AT&T Labs - Research, Bell Labs, Telcordia Technologies (formerly Bellcore) and NEC Research Institute and their scientific personnel, as well as their colleagues nationwide, working together to play a national leadership role in the development, application and dissemination of discrete mathematics (dm) and theoretical computer science (tcs) by ...."