In order to register a company, and in many cases a business name, sole proprietorship or partnership in Canada you will be required to either provide a NUANS name search report or a name search report specific to that province.

These name search reports allow the government to ensure the name has not been taken by another business.  Most provinces and territories take name granting extremely serious, as you should, because of the ability to market your business not only across Canada but across the World with the help of the internet.  Having a distinct and descriptive name is very important.