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Contact the Ontario Securities Commission

You can call 1-877-785-1555 or email us: [email protected]

Please note that OSC staff will not respond to abusive or offensive written communications, and will terminate abusive or offensive telephone calls.


1-877-785-1555 (Toll-free)
416-593-8314 (Local)
1-866-827-1295 (TTY)


[email protected]

Online form

You can also use our online form to contact us if you have a question, complaint or tip. You can submit this form anonymously, although your contact information will help us if we need to follow up with you.


416-593-8122 (Fax)

Hours of operation

8:30 am to 5:00 pm
Monday to Friday
Closed on Statutory Holidays

Mailing address 

20 Queen Street West
20th Floor
Toronto ON, M5H 3S8
(Deliveries on the 22nd floor)

Support for market participants

Contact our expert staff for inquiries or assistance related to: 

  • understanding your registration requirements
  • regulatory filings and forms 
  • reporting insider electronic filings
  • fees

We are also able to provide NRD information and employment notices.

Support for investors

Contact our expert staff who can provide you with assistance with your questions or to discuss:

  • complaints or concerns about a company, individual or investment product
  • suspected investment fraud or scams
  • checking the registration of a firm or individual

Capital Markets Tribunal support

The independent Capital Markets Tribunal is a division within the Ontario Securities Commission established by the Securities Commission Act, 2021. For information related to Tribunal hearings, the Litigation Assistance Program and Duty Counsel Program, or other Tribunal matters, contact the Capital Markets Tribunal.

Other ways to contact the OSC


Please email your media inquiry, including your deadline and organization, to: [email protected]. Visit our media resources page for more information.


Visit our news room for the latest news and events, and subscribe to receive OSC email alerts.  


We encourage individuals to come forward with information about possible violations of Ontario securities law that have occurred, are ongoing, or are about to occur such as insider trading, fraud, misleading financial statements or trading-related misconduct. Learn more about the Whistleblower program.


The Innovation Office engages with fintech businesses, assists them in navigating the requirements and strives to keep regulation in step with digital innovation. Request support from the Innovation Office.


The Ontario Securities Commission (OSC) manages its procurement process in accordance with its Procurement and Contract Management Policy and applicable government agency requirements. These requirements include the Management Board of Cabinet Procurement Directive, applicable to OSC in part as an “Other Included Entity”, and relevant trade agreements, such as the Canadian Free Trade Agreement (CFTA). To learn more, visit Supply Chain Ontario and Doing Business in Ontario on the Government of Ontario website.

The OSC publicly tenders most of its requirements for goods and services. We post our requests for proposals and other solicitation documents through the Ontario Tenders Portal

For more information on doing business with the OSC, please contact the Manager, Procurement at [email protected].


Confirmation of current or previous employment can be made by contacting our Human Resources branch: [email protected].


If you wish to serve court materials on the Commission related to the Creditors’ Companies Arrangement Act, please use the [email protected] email address for the service list unless otherwise advised by the OSC. 

If you wish to serve court materials on the Chief Executive Officer in order to initiate an appeal of a Commission decision under section 9 of the Securities Act or an appeal of a Tribunal decision under section 10 of the Securities Act, please use the [email protected] email address, unless there is already counsel involved in the underlying matter, in which case, please serve that counsel directly.

For questions related to service of court documents, you may also email [email protected]

Please note that this is a shared inbox administered by the General Counsel’s Office.

Service commitment

The OSC is committed to accountability and transparency in the way in which it delivers services to the public. When you deal with the OSC, you can expect service from knowledgeable and professional staff in keeping with our service commitment to you.

Accessibility assistance

If you require information or public documentation in an accessible format, or want to provide feedback using specialized adaptive communications devices, qualified OSC inquiries officers are available, please call us at 1-877-785-1555 or 1-866-827-1295 (TTY), or email us. For further information, please consult our accessibility policies and multi-year accessibility plan.