Loblaw Companies Limited is a Canadian food retailer that encompasses 22 brands, including Loblaws, No Frills, Real Canadian Superstore, and Shoppers Drug Mart. The company was founded in 1919 by Theodore Loblaw and J. Milton Cork. Loblaw Companies Limited is the largest food retailer in Canada, with over 1,050 corporate and franchised stores across the country. The company also operates a loyalty program called PC Optimum, which allows customers to earn points on purchases that can be redeemed for discounts on future purchases.