Ocean science is an important science and the problems it addresses are too big for any single country acting alone. The United Kingdom has a long tradition as a pioneer in marine science with some of the best capabilities in the world and the CNO is one of the world's leading oceanographic institutions. It provides the UK with the national capabilities needed to become a leading global player, as well as to lead and participate in international cooperations.

The CNO undertakes world-leading research in large-scale oceanography and technological innovation in ocean measurement. It works with government and businesses to turn cutting-edge science and technology into advice and applications. The CNO supports the British scientific community based in universities and smaller research institutes with irreplaceable scientific facilities, research infrastructure and data resources, allowing the United Kingdom to fully exploit the potential and diversity of its scientific talents in oceanography.