- Emilio Carrizosa, Universidad de Seville, Spain – January 2016 and April 2016.
- William Johnson, NASA, USA – June 2016.
- Andrew Conn, IBM T.J. Watson Research Center, NY, USA – April 2015 and March 2016.
- Fabien Bastin, Univérsité de Montréal, CIRRELT, Canada – January-May 2015.
- Francois Soumis, École Polytechnique de Montréal, GERAD, Canada – December 2014.
- Charles Audet, École Polytechnique de Montréal, GERAD, Canada – June 2014.
- Laureano F. Escudero, Universidad Rey Juan Carlos, Mostoles (Madrid), Spain – February 2014.
- Pierre Hansen, HEC Montréal, GERAD, Canada – December 2013.
ATOMIC sponsored conferences
ATOMIC partially supported the first scientific days of the French working group on Mathematical Programming (premières journées scientifiques du GT Programmation Mathématique du GDR RO) 18-19 June 2014.
- Annual meeting: 15 December 2015
- Annual meeting: 15 May 2014
- Kick off meeting: 14-15 March 2013