Newmarket, East Gwillimbury and surrounding areas in York Region. Supplies/Services Newmarket, East Gwillimbury and surrounding areas in York Region. Supplies/Services Search | Advanced Search | New Members | Coupons and Discounts | All Categories Sort alphabetically by... Name City Wilson Music Services _ P.O. Box 4025Newmarket, ON L3Y 0C8 Mr. Jeff Wilson (905) 853-5082 Learn More | Visit Site | View on Google Maps SONATICO _ Toronto, ON Paul Mark (416) 404-2877 THE GLOBAL MUSIC EDUCATION HUB WITH INTERACTIVE VIDEO CONFERENCING Learn More | Visit Site If your business isn't here, contact us today to get listed!