The following people have confirmed their attendance at Sage Days 53:
- Jennifer Balakrishnan (University of Oxford)
- Jamie Beacom (University of Oxford)
- Amnon Besser (Ben Gurion University)
- Charles Bouillaguet (Laboratoire d'Informatique CNRS Lille)
- Volker Braun (University of Oxford)
- Wouter Castryck (KU Leuven)
- Rob de Jeu (Vrije Universiteit Amsterdam)
- Martin Dickson (University of Bristol)
- Burcin Erocal (Heidelberg University)
- Francois Escriva (Vrije Universiteit Amsterdam)
- Jean-Pierre Flori (ANSSI)
- Xevi Guitart (Essen)
- Mike Hansen (University of Brighton)
- Shaun Harker (Rutgers University)
- David Harvey (University of New South Wales)
- Andrea Karlova (Charles University)
- Kiran Kedlaya (University of California, San Diego)
- Jan Keitel (LMU Munich)
- Simon King (Friedrich Schiller University Jena)
- Abhinav Kumar (MIT)
- Alan Lauder (University of Oxford)
- Zhentao (Victor) Lu (University of Oxford)
- Steffen Mueller (Hamburg)
- Andrey Novoseltsev (University of Alberta)
- Dima Pasechnik (University of Oxford)
- Adriana Salerno (Bates College)
- Drew Sutherland (MIT)
- Jan Tuitman (KU Leuven)
- John Voight (Dartmouth College)
- Ursula Whitcher (University of Wisconsin, Eau Claire)