Pre-print, Working paper: This paper analyzes the effect of immigrants' networks on the decision of individual firms to starting exporting to the immigrants' home country. Existing evidence on the trade-creating effect of immigrants show a robust effect, however at the national or regional level. Using French exports at the firm-level to 61 countries, I find that increasing the number of foreign immigrants in the region by 10 % increases the probability that a firm starts exporting to the immigrants' home country by 1.2%. More, the effect of immigrants is enhanced when immigrants are older or more educated. The effect of immigrants also varies among origin countries.