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International Symphony Orchestra

170 Christina Street North, Sarnia, ON, Canada N7T 5T9

Office Hours
Monday to Friday  9 am to 4 pm
Tel Canada
519-337-7775   Fax 519-337-1822

United States

International Symphony Orchestra

800 Harker St. Port Huron, MI, 48060

Mailing Address: PO Box 610242 Port Huron, MI, 48061-0242

Office Hours
Monday to Friday  9 am to 4 pm
USA 810-984-8857  Fax 519-337-1822

The International Symphony Orchestra's

65 seasons

would not have been possible without the thousands of hours donated by volunteers, associations, musicians, singers, members, and others. Because of your pandemic support, we were able to continue performing and educating while we were away from the concert hall, resulting in a joyful onstage reunion with our Ontario and Michigan audiences. The ISO will continue to be grateful to all communities, sponsors, and businesses on both sides of the border.