Casino, Guichard-Perrachon S.A. is a prominent French multiformat retail group founded in 1898 by Geoffroy Guichard and headquartered in Saint-Étienne. It operates a diverse network of over 10,000 stores, encompassing hypermarkets like Géant Casino, supermarkets under brands such as Casino Supermarchés, Monoprix, Franprix, and Leader Price, as well as convenience outlets including Petit Casino, Spar, Vival, and Sherpa. The company also manages discount stores, e-commerce platforms like Cdiscount, restaurants, and real estate activities. While France remains its core market, it maintains a significant presence in Latin America, particularly Brazil and Colombia, alongside other international operations. Beyond traditional retail, subsidiaries like GreenYellow provide energy services including solar photovoltaic production, and Banque Casino offers retail banking and insurance products. As one of France's leading retailers, Casino, Guichard-Perrachon S.A. plays a key role in the food and non-food distribution sector, innovating since its inception with milestones like the first distributor's brand in 1901 and self-service stores in 1948.