The enterprise frey hydrodynamics was founded in 1997 by Oceanographer Dr. Helmut Frey. Before establishing the enterprise, Dr. Helmut Frey worked for over twelve years very successfully on high scientific level within the scope of several research projects at the Bundesamt für Seeschiffahrt und Hydrographie (BSH) Hamburg, at the Institut für Meereskunde (IfM) of the University of Hamburg, and at the Max-Planck-Institut für Meteorologie (MPI) Hamburg. frey hydrodynamics makes this high scientific level into its standard: in our oppinion, quality is equivalent to efficiency. In particular, measures in fields of environmental protection, waters protection, and coastal protection require high-qualified decision assistances. frey hydrodynamics provides the following services: Simulation of hydrothermodynamic processes in running waters, inland waters, estuaries, and oceanic waters.   Theoretic development and application-related realization of hydrothermodynamic simulation models.   Scientific expert advice and consulting in subjects of hydrodynamics and waters physics and related fields.   Management and co-ordination of scientific projects.   Management, processing, analysis, evaluation, and presentation of scientific data.   Software development for scientific tasks.