Mercantile Marine Pty Ltd was established in 2003, becoming the parent company of both WA Mercantile Services and Griffith WA Services.

WA Mercantile Services was incorporated in Fremantle in 1979, to provide ancillary shipping and marine insurance services to Western Australia. In 1985, WA Mercantile Services squired the company Griffith WA Services, which was the Western Australia franchise from the Internationally recognised Inspection, Marine Surveying and Assay Group, then known as Daniel C Griffith & Co Based in the United Kingdom. Today Mercantile Marine has branches Geraldton, Bunbury and Singapore.