Almost 90% of the pet food sales in the UK are from three parent companies. These are Mars, Nestle and Colgate-Palmolive. They are responsible for dog food brands such as Pedigree (Mars), Royal Canin (Mars), Bakers (Nestle) and Hills Prescription Diets (Colgate-Palmolive) who’s large sacks of kibble are piled in supermarkets and veterinary practices.