Rothsay, a division of Darling Ingredients Inc., has its main office in Guelph, Ontario with roots in the Canadian rendering industry extending over 50 years. Today, Rothsay operates in Canada with over 500 employees, providing essential services for the efficient and environmentally responsible management of collecting, processing and recycling edible and inedible animal by-products. Rothsay, like Darling Ingredients, is committed to environmental sustainability, superior quality and excellent customer service.Rothsay engages in a rigorous, fact based and all-encompassing approach to business leadership and breakthrough improvement called Six Sigma. Based on "doing the right things right the first time," Six Sigma is focused on minimizing waste throughout the entire value chain. By listening to the Voice of the Customer and applying a comprehensive set of business tools, Six Sigma helps Rothsay to continuously improve all products and processes. Six Sigma improves overall process efficiency and performance while ensuring that the end product exceeds the expectations of the customer.Rothsay, part of the Darling Ingredients Inc. family, is committed to environmental advocacy. We place great importance on educating our local communities about sustainability. Rothsay also supports numerous environmental educational programs, local sports teams, charitable organizations, and community events.Recycling in its truest form, the rendering process transforms inedible animal by-products, such as meat scraps, fat and bone into valuable, nutrient rich finished goods. Rendering is a necessary service for the agriculture and food industries and plays an important role in ensuring that animal by-products are disposed of safely.