Service hydrographique et océanographique de la marine (Hydrographic and Oceanographic Service of the Navy, SHOM), France

The Naval Hydrographic and Oceanographic Service (SHOM) is a French public establishment dedicated to hydrography and oceanography. It provides essential services such as producing nautical charts, tide tables, and other navigational aids to ensure maritime safety. SHOM also conducts research and surveys to support naval operations and contribute to scientific knowledge. Its mission includes ensuring safe navigation, supporting national defense, and promoting the sustainable use of marine resources.