Between 2010 and 2021, the percentage increase of Romanian nationals in Switzerland reached 295.1%, a trend likely to continue. Additionally, Romania is the second largest beneficiary of Swiss cohesion funding. It shouldn’t be surprising, therefore, that understanding diasporas and migrant communities is the first step towards evidence-based policymaking in Switzerland. But whom to engage and how? Andra-Lucia Martinescu and Catalina Moisescu explored this question in their policy brief by using the case study of the Romanian diaspora in Switzerland.