There is a lot of industry (factories) and commerce (buying and selling) in Melbourne. Many of Australia's largest companies and many large companies from other countries work there. It is home to Australia's largest seaport. There are a number of universities (the University of Melbourne, Monash University, Deakin University, Victoria University, La Trobe University, RMIT University, Swinburne University and the Australian Catholic University). Much of A ustralia's automotive (car) industry is there, for example the engine maker "Holden", and "Ford" and "Toyota" car builders, Although all three of these companies have announced plans to move their manufacturing plants overseas with Ford already shutting down its manufacturing plant in Broadmeadows.