About Us

Welcome to Katwijk Chemie, a trusted producer of Active Pharmaceutical Ingredients (APIs) and Fine chemicals, located in Katwijk, The Netherlands.

For more than 100 years, we have supplied our customers with high quality products manufactured in our own plant, supported by personal and flexible service. Our global network of sales partners provides our customers with convenient local contacts world-wide.

Our major products are Active Pharmaceutical Ingredients (APIs) for Regulated markets. Among our APIs is a range of products used in human drugs to treat epilepsy. We also produce a number of fine chemicals for various industrial uses. In addition we are involved in the development and contract manufacturing of products on an exclusive and confidential basis.

Your benefits with Katwijk Chemie

  • More than 100 years of reliability
  • High and consistent product quality
  • All products manufactured in our plant in The Netherlands under cGMP
  • Quick and accurate quality support; US FDA inspected since 1976
  • Compliant with highest European HSE standards
  • Medium-sized, agile and flexible
  • Family-owned and fully independent


All our products are manufactured under cGMP conditions in our plant in Katwijk. Our plant is regularly inspected by the US and European authorities (since 1976 and 2003, respectively). We also receive some 20 audits each year from our pharmaceutical customers.


We regularly exhibit at CPhI Worldwide (Europe), and we attend the DCAT week (New York City, USA) and Chemspec (Europe). We look forward to meeting you there!