Map for Subway, Inc. - GNS Corporate Office Search | Advanced Search | New Members | Coupons and Discounts | All Categories Restaurants, Food & Beverages >> Restaurants Subway, Inc. - GNS Corporate Office 800 Ellis Road, AMG Building, Suite 111Norton Shores, MI 49441 | directions 231-799-4888 | fax: 1-866-388-6707 Visit Site If you would like to see your business here, contact us today to get listed!