Complade est un organisme de certification accrédité par le Conseil canadien des normes pour délivrer les certifications ISO/IEC 27001 et CyberSécurit
Follow same ISO 27001 process (Application - Stage 1 and Stage 2). Get started here
During application pleas mention CSA STAR level 2 requirement.
If you already an ISO 27001 certificated and want to add CSA STAR level 2 - it would depend on the scope.
Depending on your ISO27001 status. Pricing estimate is published here