Contact If you are a human and are seeing this field, please leave it blank. First Name Last Name Email Your Message Mailing Address:P.O. Box 760361500 Upper Middle Road WestOakville, Ontario, L6M 3H5Phone: 1-877-532-6787 (OPUS)Email: mail@oakvillechamber.orgOakville Chamber Orchestra is a registered Canadian charityRegistration Number: 88967 4222 RR0001.