In Ontario WES is used by most professional associations. A way around that is to get another evaluation from the alliance and become a member from a professional association at a different province and then try to transfer it to Ontario. At the end of the day, membership in a professional association is way more power than any evaluation service report. Technically even in Ontario, professional associations should take any reports from the alliance as this is what the federal government is recognizing. In practice every province has its preferences, in Quebec for example the provincial government only accepts Quebec certificates for provincial government jobs. Foreign credential recognition is complex. Even, some local Universities are not recognized within Canada. Yorkville for example, it is not recognized by all universities as they are a private university which is a strange concept in Canada where most provinces do not allow private universities.