Mission Restaurant Supply, online at missionrs.com, save money on hot items when shopping on Mission Restaurant Supply when applying our coupons, promo codes during checkout. Trust us, these coupons are good. Make the best of our Mission Restaurant Supply promo codes to get $10 OFF. All discounts are totally free to use. MissionRS.com your restaurant supply store to save on all your commercial kitchen supplies and equipment! Mission Restaurant Supply, based in San Antonio, Texas, began as Mission Ice Equipment Company when it was acquired in March of 1988 by the Lewis Family. At the time, the company was strictly an ice machine sales and leasing operation serving South Central Texas. Today, the company is still owned and operated by the Lewis family, but the business has grown into a full-service restaurant equipment and supply dealer.