Certificate of Authorization Directory
This directory (an addendum to The Roll of Public Accountants of Ontario) contains a listing of all professional corporations that currently hold a Certificate of Authorization (COA) or have held a COA within the last 5 years. The COA is required by a professional corporation to practice public accounting in Ontario. Pursuant to Bylaw s. 13.4.3, CPA Ontario may exempt a member or professional corporation from having their contact information being made available to the public where CPA Ontario is of the opinion that there are legitimate concerns surrounding a member’s personal security.
Please note that firms that are not a professional corporation do not require a COA to practice public accounting and, therefore, this listing does not include all firms entitled to practice public accounting.
This directory does not include a listing of members who hold or have held a Public Accounting Licence (PAL). For that directory, please see the Public Accounting Licence (Individual) page.
For more information, including past or current disciplinary information (if any), click on the Firm’s name.
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The information in this directory was prepared on .
Use of this directory is subject to the website's Terms and Conditions of Use in addition to the following:
- CPA Ontario makes no representations or warranties as to the accuracy, reliability, accessibility or completeness of any of the information contained therein.
- This directory contains both current and former certificate holders. That a professional corporation is listed does not guarantee it has a current and valid Certificate of Authorization, or that it is a registered firm with CPA Ontario. The directory may take some time to reflect certain regulatory updates. To confirm the status of a professional corporation, obtain historical status information, or to inquire about a firm not listed in the directory, please contact customer service.