- S1: Differential operators in mathematical physics (Konstantin Pankrashkin, Marcello Serri)
- S2: Harmonic analysis on groups and manifolds (Jordy van Velthoven, Tommaso Bruno and Effie Papageorgiou)
- S3: Linear systems and control theory (Hannes Gernandt, Nathanael Skrepek)
- S4: Matrix theory and linear algebra I (Hugo Woerdeman, André Ran)
- S5: Matrix theory and linear algebra II, in honour of Rien Kaashoek (Hugo Woerdeman, André Ran)
- S6: Moment problems and applications (Raul Curto, Aljaz Zalar)
- S7: Multivariable operator theory (Sanne ter Horst, Rongwei Yang and Joe Ball)
- S8: Non-commutative function theory and free analysis (Rob Martin and Michael Jury)
- S9: Noncommutative geometry (Sophie Zeegers, Shirly Gefen and Suvrajit Bhattacharjee)
- S10: Numerical ranges and spectral sets (Ryan O'Loughlin, Ilya Spitkovsky, Michal Wojtylak)
- S11: Open problems in harmonic analysis (Gianmarco Brocchi, Giuseppe Negro)
- S12: Operator learning and functional representation (Francesca Bartolucci, Christoph Brune, José A. Iglesias and Marcello Carioni)
- S13: Operator semigroups and related operators (Karsten Kruse, José Bonet);
- S14: Operator theory and hypercomplex analysis (Antonino de Martino, Milton Ferreira and Dmitrii Legatiuk)
- S15: Operator theory on function spaces (Jani Virtanen, Carlo Bellavita)
- S16: Operator theory on function spaces, in honour of Nikolai Vasilevski (Jani Virtanen, Carlo Bellavita)
- S17: Positivity and dynamical systems (Onno van Gaans, Sahiba Arora)
- S18: Quantum information theory (Jurij Volčič, Marc-Olivier Renou)
- S19: Session in honour of Harry Dym (Bill Helton and David Kimsey)
- S20: Spaces of analytic functions (Nikolaos Chalmoukis, Michael Hartz)
- S21: Spectral theory, in honour of Heinz Langer (Christiane Tretter, Carsten Trunk)
- S23: Advanced matrix techniques in the numerical solution of differential equations (Matania Ben-Artzi, Paola Boito, Yuli Eidelman)
- S22: Open session: Operator Theory and its Applications (Philip Preussler, Jens de Vries, Hans Zwart)
