European Working Group on Multicriteria Decision Aid - Presentation, newsletter archive and professional contacts.

INFORMS College on Simulation - A section of INFORMS. Contains college information, its newsletter, list of conferences & workshops, and simulation information and links.

International Society on Multiple Criteria Decision Making - Develop, test, evaluate and apply methodologies for solving multiple criteria decision making problems.

GMCDM - Spanish Group interested in Multi-Criteria Decision Making Problems.

ISDG: The International Society of Dynamic Games - Promotes interactions among researchers interested in the theory and applications of dynamic games. Newsletter, journals, meetings.

INFORMS Decision Analysis Society - Membership information, newsletter archive, meetings.

ISSMO: International Society for Structural and Multidisciplinary Optimization - One of the aims of ISSMO is to bring together researchers and practitioners in the field of structural optimization, including multidisciplinary aspects.

Military Operations Research Society - Serves the U.S. Department of Defense analytic community. Symposia, publications, awards, membership information.

The National Security Decision Making GameSociety for Judgment and Decision Making Home Page - An interdisciplinary academic organization dedicated to the study of normative, descriptive, and prescriptive theories of decision.

Society for Medical Decision Making - Promoting rational and systematic approaches to decision making that will improve the health and clinical care of individuals and assist health policy formation.

Society for Risk Analysis - Menmbership information, newsletter and journal, jobs and other resources.

Mathematical Programming Society - The Mathematical Programming Society is an international organization dedicated to the support and development of the applications, computational methods, and theory of mathematical programming in its widest sense.