| Marco Caccamo | Technical University of Munich (TUM), Germany | October 2024 | 1 year | Sabbatical at the RETIS Lab |
| Yang Tian | Harbin Engineering University, Cina | November 2023 | 15 months | Visiting PhD student |
| Satka Zenepe | Mälardalen University, Sweden | May 2023 | 3 months | Visiting PhD student |
| Eftekhari Moghadam Vahid | Politecnico di Torino | September 2022 | 9 months | Visiting PhD student |
| Sara Alonso Salazar | University of the Basque Country | September 2022 | 3 months | Visiting PhD student |
| Tauã Cabreira | Universidade Federal de Pelotas (UFPel) | 2018 | 6 months | Visiting PhD student |
| Geoffrey Nelissen | CISTER, ISEP, Polytechnic Institute of Porto | 2018 | 1 week | Seminar on cache-related preemption delay |
| Daniel B. De Oliveira | Universidade Federal de Santa Catarina (UFSC) | 2017 | 1 year | Visiting PhD student |
| Martin Stigge | Uppsala University, Sweden | September 2014 | 1 week | Seminars on real-time task models and analysis |
| Lui Sha | Carnagie Mellon University, USA | May 2014 | 3 months | Research and course on healthcare systems |
| Abhilash Thekkilakattil | Malardalen University, Sweden | May 2014 | 2 months | Research on limited preemtive scheduling |
| Luis Almeida | University of Porto, Portugal | January 2014 | 1 week | Course on coordination of mobile nodes |
| Kunal Agrawal | Washington University, USA | April 2014 | 1 week | Research on multiprocessor scheduling |
| Bjorn Brandenburg | Max Planck Institute for Software Systems, Germany | December 2013 | 1 week | Course on multiprocessor synchronization |
| Sverre Hendseth | Norwegian University of Science and Technology | August 2013 | 1 year | Sabbatical at the RETIS Lab |
| Pau Martì | University of Catalonia, Spain | June 2011 | 2 weeks | Course on real-time control |
| Manel Velasco | University of Catalonia, Spain | June 2011 | 2 weeks | Course on real-time control |
| Pau Martì | University of Catalonia, Spain | June 2010 | 2 weeks | Course on real-time control |
| Manel Velasco | University of Catalonia, Spain | June 2010 | 2 weeks | Course on real-time control |
| Karl-Erik Arzen | Lund University, Sweden | June 2009 | 2 weeks | Course on real-time control |
| Lui Sha | University of Illinois at Urbana-Champaign, USA | March 2006 | 2 weeks | Course on Improving Your Research Skills |
| Anton Cervin | Lund University, Sweden | June 2009 | 2 weeks | Course on real-time control |
| John Stankovic | University of Virginia, USA | June 2007 | 1 week | Course on wireless sensor networks |
| Luis Almeida | University of Aveiro, Portugal | April 2003 | 1 month | Course on real-time networks |
| Richard Gerber | University of Maryland, USA | 1999 | 1 year | Sabbatical at the RETIS Lab |
| Gérard Le Lann | INRIA, France | 1998 | 2 weeks | Course on distributed systems |
| Alan Burns | University of York, UK | 1997 | 2 weeks | Course on schedulability analysis |
| John Lehoczky | Carnagie Mellon University, USA | 1996 | 2 weeks | Course on aperiodic server algorithms |
| Lui Sha | Carnagie Mellon University, USA | 1995 | 2 weeks | Course on real-time systems |
| Krithi Ramamritham | University of Massachusetts at Amherst, USA | 1994 | 2 weeks | Course on real-time data bases |
| Herman Kopetz | University of Vienna, Austria | 1994 | 2 weeks | Course on time-triggered real-time systems |
| John Stankovic | University of Massachusetts at Amherst, USA | 1992 | 1 year | Sabbatical at the RETIS Lab |