The researchers below were distinguished invited speakers at previous DoCEIS conferences. We are indebted to them for their contribution to heighten the conference level.

2017
	Prof. Ari-Veikko Anttiroiko University of Tampere Finland
	Prof. Hans Schaffers Saxion University of Applied Sciences Netherlands		Prof. Paulo Leitão Polytechnic Institute of Bragança Portugal
2016
	Prof. Michael Henshaw Loughborough University United Kingdom
	Prof. António Granado Nova University of Lisbon Portugal		Prof. Eric Monmasson University of Cergy-Pontoise France
2015
	Prof. Kouhei Ohnishi Keio University Japan		Prof. Luís Barruncho CGI Portugal
	Prof. Javad Jassbi Portugal		Dr. Thomas Bangermann ifak e. V. Magdeburg Germany
2014
	Dr. Fabrizio Sestini European Commission Belgium		Prof. Valeriy Vyatkin Lulea University of Technology Sweden
	Prof. Eduardo Maldonado University of Porto / Portuguese NCPs Coordinator Portugal		Dr. Duncan Botting Global Smart Tranformation Limited United Kingdom
2013
	Prof. Paulo Pinho Nova School of Business / UNL		Prof. Paulo Verissimo FC / UL
	Dr. Armando Walter Colombo Schneider Electric- Fr		Dr. Ricardo Saldanha SisCog - Sistemas Cognitivos
2012
	Prof. Okyay Kaynak Bogazici University Turkey		Prof. Washington Mio Florida State University, Tallahassee, USA
	Eng. Délio Almeida Critical Software Portugal		Eng. Nuno Lourenço Clarke Model Co Portugal
2011
	Dr. Erastos Filos European Commission Belgium		Prof. Teresa Correia de Barros IST Portugal
	Eng. António Aires Messias EDP Distribuição - Energia, S.A. Portugal		Prof. Yudel Rodrigo Gómez Díaz Universidad Central "Marta Abreu" Cuba
2010
	Prof. Eugénio Oliveira University of Porto Portugal		Prof. Jorge Dias University of Coimbra & Institute Pedro Nunes Portugal
	Prof. Mauro Onori Royal Institute of Technology Sweden		Prof. António Câmara New University of Lisbon & YDREAMS Portugal