Under the Business Names Act of Ontario, the following business types must register:
- sole proprietorships (one owner) carrying on business under a name other than the individual’s full name
- partnerships carrying on business under a firm name other than the full names of the partners
- corporations carrying on business under a name other than their corporate name
- an existing general partnership or limited partnership registering a business name different from the registered firm name
- limited liability partnerships
- extra-provincial limited liability partnerships; and
- extra-provincial limited liability companies