Frito-Lay Canada is the country's largest snack food manufacturer, a division of PepsiCo, producing iconic brands like Lay's, Doritos, Cheetos, Tostitos, Ruffles, and Smartfood, using Canadian potatoes and corn where possible, with manufacturing plants across Canada including in Ontario, Quebec, Alberta, and Nova Scotia. They focus on delivering popular salty snacks while emphasizing food safety and sustainability in their operations, making them a significant player in the Canadian food industry.