Former members
- Geneviève Arboit, PhD student, Université du Québec à Rimouski, previously MSc student, Université de Montréal (supervisor: David Lafrenière)
- David Berardo, PhD student, previously MSc student at Université McGill (supervisor: Andrew Cumming)
- Sandie Bouchard, Former PhD student at Université de Montréal, supervisor: René Doyon
- Simon Coudé, previously PhD student at Université de Montréal, (supervisor: Pierre Bastien)
- Claire Guimond, previously MSc student, McGill University (supervisor: Nicolas Cowan)
- Olivier Hernandez, iREx Founding member, former iREx Coordinator, former Director of operations of the Observatoire du Mont-Mégantic, now Director at the Planétarium Rio Tinto
- Robert Lamontagne, iREx Founding member, former Director of the Observatoire du Mont-Mégantic
- Olivier Roy-Loubier, previously MSc student at Université de Montréal, supervisor: René Doyon
- Joel Schwartz, previously postdoctoral researcher, Université McGill
- Holly Sheets, previously Trottier post-doctoral fellow at McGill University
- Lauren Weiss, previously Trottier post-doctoral fellow at Université de Montréal
- Julien Rameau, previously post-doctoral researcher at Université de Montréal