• 31th Annual Iranian Mathematics Conference, Tehran University, Tehran, Iran, August 2000
• 34th Annual Iranian Mathematics Conference, Shahrood University, Shahrood, Iran, August 2003
• McMaster Optimization Day, McMaster University, Hamilton, Ontario, Canada, May 2004
• Workshop on Large Scale Nonlinear and Semidefinite Programming, University of Waterloo, Waterloo, Ontario, Canada, May 2004
• The Mathematics of Information Technology and Complex Systems (MITACS), Halifax, Nova Scotia, Canada, June 2004
• 4th Annual McMaster Optimization Conference: Theory and Applications, (Mopta04), McMaster University, Hamilton, Ontario, Canada, July 2004
• First International Conference on Modeling, Simulation and Applied Optimization (ICMSAO’05), American University of Sharjah, Sharjah, UAE, February 2005
• 36th Annual Iranian Mathematics Conference, Yazd University, Yazd, Iran, September 2005
• Workshop on Semidefinite Programming and its Applications, National University of Singapore, Singapore, Jan. 2006
• Workshop on High Order Methods for Industrial Applications, Event14, CRS4, POLARIS, Pula, Cagliari, Italy, June 2006
• 6th International Congress on Industrial and Applied Mathematics, ICIAM07, Zurich , Switzerland, July 2007
• 22th European Conference on Operational Research (EURO XXII), Prague, Czech Republic, July 2007
• 2th Conference on Optimization Methods & Software and 6th EUROPTWorkshop on Advances in Continuous Optimization (EUROPTOMS), Prague, Czech Republic, July 2007
• 38th Annual Iranian Mathematics Conference, Zanjan, Iran, September 2007
• First Workshop on Optimization and its Applications in Engineering, K.N. Toosi University of Technology, Tehran, Iran, May 2009 (Organizer)
• 40th Annual Iranian Mathematics Conference, Sharif University of Technology, Tehran, Iran, August 2009
• 7th EUROPT Workshop on Advances in Continuous Optimization (EUROPT09), Remagen, Germany, July 2009
• 23th European Conference on Operational Research (EURO XXIII), Bonn, Germany, July 2009
• Second Workshop on Optimization and its Applications, K.N. Toosi University of Technology, Tehran, Iran, May 2010 (Chair)
• Third International Conference of Iranian Operations Research Society, Amirkabir University, Tehran, Iran, May 2010 (Scientific Committee Member)
• 24th Mini Euro Conference (EurOPT2010) on "Continuous Optimization and Information-Based Technologies in the Financial Sector", Izmir, Turkey, June 2010 (Stream Organizer)
• Third Workshop on Optimization and its Applications, K.N. Toosi University of Technology, Tehran, Iran, May 2011 (Chair)
• Fourth International Conference of Iranian Operations Research Society, Guilan University, Rasht, Iran, May 2011 (Scientific Committee Member)
• Workshop on Nonlinear Optimization Algorithms and Industrial Applications-On the occasion of Andrew Conn's 70th birthday, The Fields Institute, Toronto, Ontario, Canada, June 2016
