Contact 730 Courtneypark Drive W.Mississauga, OntarioL5W 1L9 Phone: 905-564-8206Fax: 905-564-8210ocsoa@ocsoa.ca Executive-Director John Kostoff Executive Assistant Laura Tonkovic lauratonkovic@ocsoa.ca Ontario Catholic Supervisory Officers' Association Contact Form First Name Last Name Email Address Phone Subject Message Submit