The foundation of Nanolytics was motivated from an increasing demand for competent analytical services for small particles. Colloidal systems are gaining increasing importance in industrial production; various applications are already in existence or will be introduced into the market in the near future. Nevertheless, in many companies there is an unsatisfied demand for external assistance concerning the specific analytical problems that arise when dealing with very small particles. Furthermore, Analytical Ultracentrifugation (Nanolytics’ core competence) is a classical, gold standard method for protein characterization.