Particle Metrix was founded in 2004 by the chemist Margret Böck and physicist Dr. Hanno Wachernig in Meerbusch near Dusseldorf. They both have many years of experience in the analysis of various micro- and nanoparticles. During the first two years, the company focused on counseling work for the particle characterization business. In 2006, Particle Metrix started developing its own nanoparticle analyzers. Today, Particle Metrix's know-how comprises the development, production and sale of particle analysis devices using nanoparticle tracking technology. The company headquarter is nowadays located in Inning am Ammersee at the gates of Munich, and in addition to the administration and development department, also includes production as well as the service and support center. An experienced team of electrical engineers, chemists, biologists and physicists is available to the customer to competently answer all possible questions. In addition to the large area of technical nanoparticles (e.g. colloidal and macromolecular solutions, emulsions, dispersions or nanobubbles), bio-medical and clinical applications play a central role for Particle Metrix. The company has specialized in the characterization of extracellular vesicles, exosomes, liposomes and viruses, using both scatter and fluorescence-based methods. The focus of interest is on determining the size and concentration as well as measuring zeta potential of particles in the nanometer scale.