abstract:The Society for Underwater Technology (SUT) is an international learned society of marine technology with headquarters in London, England that was founded in 1966. There are branches in Aberdeen (Scotland), Houston (USA), Rio de Janeiro (Brazil), Newcastle (England), Perth (Australia), Melbourne (Australia), Kuala Lumpur (Malaysia), Nigeria (Lagos), Norway (Bergen), and China (Beijing), and new branches in development in Egypt, India, Nova Scotia, and London.