Gustav Heess GmbH is a leading supplier and manufacturer of vegetable oils and fats for the cosmetic, pharmaceutical and food industry. Our quality management system has been certified according to DIN EN ISO 9001. An onsite laboratory certified in accordance with DIN EN ISO/IEC 17025 performs dependable analysis of our raw materials. Our daughter company and production facility in the U.S., Caloy, has become the world’s biggest producer of conventional and organic Almond and Walnut Oil.