Austrian Society of Operations Research
The Österreichische Gesellschaft für Operations Research (OeGOR) (Austrian Society of Operations Research) is the professional non-profit society for the scientific field of Operations Research in Aus
Polish Operational and Systems Research Society
The Polish Operational and Systems Research Society, POSRS (in Polish: Polskie Towarzystwo Badań Operacyjnych i Systemowych, PTBOiS) is the Polish scientific, scholarly and professional non-profit soc
Finnish Operations Research Society
The Finnish Operations Research Society (FORS) (in Finnish, Suomen Operaatiotutkimusseura ry) is a professional non-profit society for the scientific field of Operations Research in Finland. The socie
German Operations Research Society
The Gesellschaft für Operations Research (GOR) is the professional non-profit society for the scientific field of Operations Research in Germany. The society is a member of the European umbrella organ
Hellenic Operational Research Society
The Hellenic Operational Research Society (HELORS) is the official non-profit society for the scientific field of Operations Research in Greece. The society is a member of the European umbrella organi
Belgian Society for Operations Research
The Belgian Society for Operations Research (ORBEL) is the professional non-profit society for the scientific field of Operations Research in Belgium. The society is recognized by the International Fe
Operations Research Society of South Africa
The Operations Research Society of South Africa (ORSSA) (Afrikaans: Die Operasionele Navorsingsvereniging van Suid-Afrika (ONSA)) is the national, professional body tasked with furthering the interest
Hungarian Operations Research Society
The Hungarian Operations Research Society (HORS) is the professional non-profit society for the scientific field of Operations Research in Hungary. The society is recognized by the International Feder
Italian Operations Research Society
The Associazione Italiana di Ricerca Operativa (AIRO) – Optimization and Decision Sciences – is the professional non-profit society for the scientific field of Operations Research in Italy. The societ
Croatian Operational Research Society
The Croatian Operational Research Society (CRORS) is the professional non-profit society for the scientific field of Operations Research in Croatia. Its main mission is to promote operational research
Spanish Statistics and Operations Research Society
The Sociedad de Estadística e Investigación Operativa (SEIO, Statistics and Operations Research Society) is the professional non-profit society for the scientific fields of Statistics and Operations R
Military Operations Research Society
The Military Operations Research Society (MORS) is a society for professionals active within defense applications of operations research (OR) in the United States. Memberships include analysts, resear
Mathematical Optimization Society
The Mathematical Optimization Society (MOS), known as the Mathematical Programming Society until 2010, is an international association of researchers active in optimization. The MOS encourages the res
Swedish Operations Research Association
The Swedish Operations Research Association (SOAF; in Swedish: Svenska Operationsanalysföreningen) is a professional non-profit association for the promotion and dissemination of the scientific field