Germany

Alfred Wegener Institute for Polar and Marine Research
AWI's research targets are: ocean-ice-atmosphere system, polar and marine communities and geological evolution of the polar and marine oceans.
http://www.awi.de/

Centre for Marine Environmental Sciences (Marum)
MARUM offers the chance to integrate a wide variety of know-how from multiple research disciplines and institutes. Thus the great potential of marine research in the state of Bremen can be exploited to the optimum extent.
http://www.rcom.marum.de/English/

Coastal Research Laboratory - CORELAB
The Coastal Research Laboratory (Corelab) at the Christian Albrechts University of Kiel is a research and teaching unit established to foster research in coastal environments.
http://www.corelab.uni-kiel.de/

GEOMAR Research Center for Marine Geosciences
Department of Marine Environmental Geology
http://www.ifm-geomar.de/index.php?id=1&L=1

The Leibniz Institute of Marine Sciences at the University of Kiel
Research specialties are ocean circulation, climate dynamics, marine biogeochemistry, marine ecology, and ocean floor dynamics. Page includes list of working groups. Located in Germany.
http://www.ifm-geomar.de/index.php?id=home&L=1

Universität Rostock, Institut fuer Ostseeforschung
Baltic Sea Research Institute,Warnemünde.
http://www.io-warnemuende.de/

University of Bremen
Center for Tropical Marine Ecology, ZMT is a research and training institution.
http://www.zmt.uni-bremen.de/

University of Hamburg
Institut für Meereskunde
http://www.ifm.zmaw.de/

University of Oldenburg
Institute for Chemistry and Biology of the Sea.
http://www.icbm.uni-oldenburg.de/index_e.html