Ontario Corporation Number (OCN) - Organizations that incorporate under Ontario legislation are assigned a corporation number at the time they are incorporated. Your corporation number is on your organization�s Certificate of Incorporation (or Letters Patent)

A company key is required to access your Ontario Business Registry profile and make filings under the business statutes. Corporations created on or after October 19, 2021 will receive the company key as part of their registration. A company key consists of a unique series of digits and/or characters. It is provided to the official email, or registered office or other business address, as applicable, for a corporation under the business statutes. You can request a company key from the Ontario government at https://www.appmybizaccount.gov.on.ca/onbis/companykey/?lang=en