ASIM
Arbeitsgemeinschaft Simulation, http://www.asim-gi.org/.

BULSIM
Bulgarian Modeling and Simulation Association, http://www.bulsim.org/.
BULSIM is a non-profit organization for public benefit, dedicated to spreading and recognition of the modeling and simulation «culture» in Bulgaria. It was founded by experts from Bulgarian Academic institutions, Bulgarian universities, Government organziations and representatives from IT companies with long standing experience in Modeling & Simulations.

CASS
Chinese Association for System Simulation, http://www.china-simulation.com/.
CASS has a membership of over 5000 in China and abroad, and holds more than 20 conferences on simulation, modeling and computing every year.

CEA
CEA is the Spanish Society on Automation and Control and it is the national member of IFAC in Spain, http://www.ceautomatica.es/en/portal.

CEA SMSG
Spanish Modelling and Simulation Group, http://www.ceautomatica.es/en/og/modelado-y-simulacion/presentacion.

CROSSIM
Croatian Society for Simulation Modelling, http://www.eurosim.info/index.php?id=10.
CROSSIM was founded on 28 March 1992. The Society is an affiliate of SCS since 1994 and a full member of EUROSIM since 1997.

CSSS
Czech and Slovak Simulation Society, http://www.fit.vutbr.cz/CSSS/.
CSSS has about 150 members in 2 groups connected to the Czech and Slovak national scientific and technical societies (Czech Society for Applied Cybernetics and Informatics, Slovak Society for Applied Cybernetics and Informatics - SSAKI). The main objectives of the society are: development of education and training in the field of modelling and simulation, organising professional workshops and conferences, disseminating information about modelling and simulation activities in Europe to its members, informing the members about publishing in the field of modelling and simulation. CSSS is a full member of EUROSIM since 1992.

DBSS
The Dutch Benelux Simulation Society, http://www.dutchbss.org/.
DBSS was founded in July 1986 in order to create an organization of simulation professionals within the Dutch language area. DBSS is a member of EUROSIM.

EUROSIM
Federation of European simulation societies, http://www.eurosim.info/.

FRANCOSIM
Société Francophone de Simulation (Belgium, France), http://www.eurosim.info/index.php?id=13.
FRANCOSIM was founded on 1991.

HSS
Hungarian Simulation Society, http://www.eurosim.info/.
HSS has been founded in 1981. HSS is a member of EUROSIM.

IFAC
International Federation of Automatic Control, a multinational federation of organizations representing the engineering and scientific societies concerned with automatic control, http://www.ifac-control.org/.

IM & LACS
International Mediterranean & Latin American Council of Simulation, http://www.i-m-cs.org/.

ISCS
Italian Society for Computer Simulation, http://www.eurosim.info/index.php?id=15.
ISCS was established in 1984, is a member of EUROSIM Federation.

JSST
Japan Society for Simulation Technology, http://www.jsst.jp/.
JSST was established under its present name in 1981. It was originally created as the Society of Analog Technology of Japan in 1961 by about 150 engineers and scientists. The establishment of the Society was therefore originally intended to form a forum for the exchange of the information about the analog computer technology and its applications. The JSST is the registered society, recognized by the Science Council of Japan. There are about 450 active members including the corporate and student members. The JSST publishes the quarterly journal. The JSST provides International Conference on Simulation Technology. The JSST has an agreement with EUROSIM to strengthen the relation. The JSST is now a cooperating society for IMACS. The JSST has a close contact with Korean Simulation Society, and Chinese Association for System Simulation.

KSS
Korea Society for Simulation, http://www.simulation.or.kr/.

LIOPHANT
The Liophant Simulation, http://www.liophant.org/.

LSS
The Latvian Simulation Society, http://www.itl.rtu.lv/imb/index.php?lang=en&id=11.
LSS has been founded in 1990. LSS is a member of EUROSIM.

MSSANZ
The Modelling and Simulation Society of Australia and New Zealand Inc., http://www.mssanz.org.au/.
MSSANZ aims to promote, develop and assist in the study of all areas of modelling and simulation. The Society was formed in 1974 as the Simulation Society of Australia Inc. (SSA), to become the Modelling and Simulation Society of Australia (MSSA) in 1991. In 1997, it expanded to include New Zealand as MSSANZ Inc. It is an affiliate of the International Association for Mathematics and Computers in Simulation, and the Society for Computer Simulation. The Society has more than 1,000 members from 50 countries, including Australia, Canada, China, France, Germany, Japan, New Zealand, the Netherlands, South Africa, Spain, Switzerland, the United Kingdom and the United States.

M&SNet
The McLeod Modeling and Simulation Network is a consortium of co-operating independent organizations active in professionalism, research, education, and knowledge dissemination in the modeling and simulation (M&S) domain, http://www.m-s-net.org/.
It was established in 2003 by the Society for Modeling and Simulation International (SCS). The M&SNet aims to provide an organizational structure that will serve to integrate and enrich, within its organizations, modeling and simulation activities throughout the world. The M&SNet provides a framework within which organizations interested in M&S can interact, share expertise, and work on problems of common interest. Any organization active in M&S professionalism, research, education, or knowledge dissemination, whether in academia, industry, or government, may apply.

PSCS
The Polish Society for Computer Simulation, http://www.ptsk.pl/.

ROMSIM
The Romanian Modelling and Simulation Society, http://romsim.ici.ro/.
ROMSIM has been founded in 1990. ROMSIM currently has about 100 members from Romania and Republic of Moldavia.

RSSD
Russian society of system dynamics, http://sysdynamics.ru/.

SCS
The Society for Modeling & Simulation International, http://www.scs.org/.
The Society for Modeling & Simulation International (SCS) was established in 1952 as a nonprofit, volunteer-driven corporation called. SCS publishes the «SIMULATION: Transactions of The Society for Modeling and Simulation International» and the «Journal of Defense Modeling and Simulation magazines». SCS Office:Vista, CA, USA.

SDS
System Dynamics Society, http://simulation.su/static/sysdynamics-main.html.

SIMS
Scandinavian Simulation Society (Denmark, Finland, Norway, Sweden and Iceland), http://www.scansims.org/.
The SIMS history goes back to 1959. SIMS practical matters are taken care of by the SIMS board consisting of two representatives from each Nordic country. Iceland will be represented by one board member. SIMS is organised as federation of regional societies. There are FinSim (Finnish Simulation Forum), DKSIM (Dansk Simuleringsforening) and NFA (Norsk Forening for Automatisering).

SLOSIM
Slovenian Society for Simulation and Modelling, http://www.slosim.si/.
SLOSIM was established in 1994 and became the full member of EUROSIM in 1996. Currently it has 76 members from both Slovenian universities, institutes, and industry.

UKSIM
United Kingdom Simulation Society, http://www.uksim.org.uk/.

WSA
Worldwide Simulation Alliance, http://www.simulationalliance.com/.