Howarth Winterbrook Ltd is based in Leiston on the Suffolk coast and has been manufacturing and trading grain and feed ingredients since 1974. Whether you are a fortune 500, global veterinary pharmaceutical manufacturer looking for an assured carrier with reliability, traceability and guaranteed supply. Or a regional pet food manufacturer looking for niche ingredients at competitive prices, then Howarth Winterbrook can help. Due to our industry leading infrastructure we can source and supply the ingredients and commodities needed to further your business. Contract Manufacturing, Supply Chain Management, Commodity Trading and Commodity Sourcing around the globe are the core parts of our business.