Mac’s Convenience Stores Inc. – Sarnia-49 Finch Dr. Convenience store. Contact Info Phone: 519-337-2756 Location 49 Finch Drive Sarnia, ON N7S 5C6 View Map Mailing Address: 49 Finch Drive, Sarnia, ON, P/T Employees: 3 F/T Employees: 2 Key Contact: Geoff Smith NAICS Code: 44512 - Convenience stores Site Selector Map: View location