The paper provides a detailed overview of literature related to the motives of population emigration, the effects of emigration on the labor market and sustainable economic growth. There are described forms of support to Croatian emigrants who seek to facilitate the return of Croatian emigrants to their homeland and to invest in the Croatian economy. A research was carried out in which the interview method was used to collect the data needed to solve the underlying issue of work, i.e. what are the possibilities of achieving sustainable economic growth with the help of immigrants. Croatian emigrants and immigrants-returnees were interviewed for the purpose of gathering information on the experiences of immigrants in investing in the Croatian economy. There are presented the examples of good practice of migrant influence on the economy of the country of origin. After analyzing the collected data, it was concluded that Croatian emigrants were not satisfied with the support provided to them by the Republic of Croatia and with the help of immigrants' organizations to return to their homeland. It is proposed to create a base that will link immigrants and entrepreneurial people in Croatia who have ideas but seek investors. This could easily be found by investors, emigrants could track how their resources are utilized, and they would also see the concrete impact of the emigrants on the economy in Croatia.