Yes, Suncor has unionized positions. Several reviews specifically mention that certain roles are unionized, highlighting aspects such as good pay and the challenges of forced overtime associated with union work. For example, one employee notes, "Great pay. This is a union position as well," indicating that union representation is present in at least some job categories within the company.
Overall, while not every position at Suncor may be unionized, it's clear that union representation plays a role in certain roles, particularly in terms of compensation and working conditions.