In recent years many scholars have been more and more interested in exploring the association between personal networks and social integration processes for immigrants. The availability of social support networks for immigrants in the country of destination is crucial to modulate the impact of first settlement and to foster social integration. Of course, the effects of social support on social integration depend on the different relational patterns on which personal networks are based and on the type and amount of resources that networks can provide. Here, our particular interest is to explore the association between ego-networks characteristics and social and economic integration processes for immigrants. We focus on two ethnic groups, Sri Lankan and Ukrainian, by using data from a more comprehensive survey on living conditions for immigrants living in Naples. First, we aim to describe and explore the structure of social relationships that immigrants activate in order to obtain different kind of supports. Second, we investigate the main factors that affect the amount and variety of resources embedded in the immigrants’ support networks. Third, we analyse the relationship between the social support patterns embedded in the ego networks and the degree of social and economic immigrants' integration.