SINCE 2002

• Member of the program committee for BLAST 2017, held at Vanderbilt University, August 14-18, 2017.
• Member of the program committee for Logic, Algebra and Truth Degrees 2016, held in Kruger National Park Game Reserve in South Africa, June 27-July 1, 2016.
• Organizer for the workshop Ordered Algebras and Logic, held at Vanderbilt University, February 6-7, 2016.
• Organizer for the workshop Ordered Algebras and Logic, held at Vanderbilt University, March 28-29, 2015.
• Organizer for the workshop Ordered Algebras and Logic, held at Vanderbilt University, February 22-23, 2014.
• Chair of the organizing committee TACL 2013 (the International Conference on Topology, Algebra and Categories in Logic), held in Nashville, USA, July 28-August 1, 2013.
• Member of the steering committee for the 9th Panhellenic Logic Symposium, held in Athens,  Greece, July 15-19, 2013.
• Member of the program committee for the 3rd installment of the international conference Logic, Algebra and Truth Degrees 2012, held in Kanazawa, Japan, September 10-14, 2012.
• Member of the program committee for the 11th Trends in Logic International Conference — Advances in Philosophical Logic, held at Ruhr University, Bochum, Germany, June 3-June 5, 2012.
• Member of the program committee TACL 2011 (the international conference on Topology, Algebra and Categories in Logic), held in Marseille, France, July 25-30, 2011.
• Member of the organizing committee of the Second International Conference on Order, Algebras and Logics, held at Jagiellonian University, Krakow, Poland, June 6-10, 2011.
• Member of the scientific committee for the 8th Panhellenic Logic Symposium, held in Ioannina, Greece, July 4-8, 2010.
• Chair of the organizing committee for the Shanks workshop Algebra and Proof Theory, amplified by Frames and Category Theory, held at Vanderbilt University, March 11-13, 2011.
• Co-chair of the organizing committee for the workshop Algebra and Substructural Logics – take four, held at the Research Center of Integrated Science at JAIST, Japan, June 8-10, 2010.
• Member of the scientific committee for the Studia Logica conference Trends in Logic VIII, Lattice-Ordered Groups and MV-Algebras: Interaction and Impact on Algebras of Logic, held in Buenos Aires, Argentina, October 13-15, 2010.
• Chair of the scientific committee for the 7th Panhellenic Logic Symposium, held in Patras Greece, July 15-19, 2009.
• Member of the scientific committee for the international conference Residuated Structures: Algebra and Logic, held in Buenos Aires, Argentina, April 16-19, 2008.
• Co-chair of the organizing committee for the international workshop Proof Theory and Algebra, held at Vanderbilt University, March 6-8, 2008.
• Co-chair of the organizing committee for the International Conference on Order, Algebra, and Logics, held at Vanderbilt University, June 12-16, 2007.
• Member of the scientific committee for the International Symposium on Ordered Structures in Many-Valued Logic, held in Massa Lubrense, Italy, May 29-June 1, 2006.
• Organizer of the Workshop on Algebra and Logic, held at Vanderbilt University, March 7-8, 2006.
• Member of the international program committee of the Conference on Algebraic and Topological Methods in Non-Classical Logics II, held in Barcelona, Spain, June 15-18, 2005.
• Member of the organizing committee of the Conference on Residuated Structures and Multi-valued Logic, held at the University of Patras, Greece, June 2 – 5, 2004.
• Member of the organizing committee and Co-chair of the Conference on Ordered Algebraic Structures, held at Vanderbilt University, March 7-9, 2003.
• Member of the organizing committee of the International Conference on Modern Algebra, held at Vanderbilt University, May 21-24, 2002.