What Canadian banks participate in the medallion stamp program?

In Canada, the Medallion Signature Guarantee program is primarily supported by major banks such as RBC Royal Bank, TD Canada Trust, Scotiabank, and BMO Bank of Montreal. These banks offer the Medallion stamp service to help verify a signer's identity for transactions involving securities. It's important to note that availability may vary by branch, so it's advisable to check with a local branch for specific services.