Table 2 shows that only 66.6 per cent of the firms that operate in the FVG port system perform transport-related activities, while 34.4 per cent perform industrial, construction, commercial or service activities. These data indicate that ports are not only areas where goods are moved, but have a complex and multi-faceted industrial nature. A finer disaggregation is presented in Table 3, with 12 port, maritime and transport activities and four non-transport-related activities.