The main difference between a co-operative corporation and a regular corporation in Ontario is the way they are owned and governed. Co-operative corporations are owned and controlled by their members, who each have an equal say in how the business is run, regardless of the amount of money they have invested. Regular corporations, on the other hand, are typically owned by shareholders who vote based on the number of shares they hold. Co-operative corporations also follow a set of guiding principles, such as voluntary and open membership, democratic member control, and concern for community, that regular corporations do not necessarily follow.