Biesterfeld Speciality Chemicals / Organic Intemediates The combination of our detailed knowledge of the market and the innovative products developed by our partners enable us to offer our customers a product range that meets the latest market requirements, coupled with services ranging from qualified technical advice to the development of special solutions for the individual customer. A large proportion of our business is transacted on an exclusive basis and is covered by secrecy agreements. We not only guarantee the flow of goods, we encourage and coordinate the flow of information between customers and suppliers.