All students at HEC Montréal are represented by a student association:
- Certificate program students are represented by the AEPC (in French only);
- BBA and preparatory year students are represented by the AEHEC (in French only);
- Graduate students (enrolled in short diploma (DESS), MSc, and PhD programs) are represented by the AECS;
- MBA students are represented by the AEMBA.
HEC Montréal students contribute to their associations through their fees. The amount of these contributions is determined by each student association at its annual general meeting.