Citizen science is strongly on the rise, also in Flanders, the Dutch speaking region of Belgium. However, little knowledge is available on who these citizen scientists in Flanders are, why they take part in citizen science projects and how they experience these projects. This information is very valuable for researchers setting up new citizen science projects. Also little knowledge exits on how many researchers know or have experience with citizen science and their motivations and barriers for choosing a citizen science approach for their research. Scivil, the Flemish knowledge centre for Citizen Science, carried out two surveys in 2020 to gain insight in these questions: one among citizen scientists to gain insight in personal characteristics of citizen scientists and motivations to participate in a citizen science project. The other survey was conducted among Flemish scientists, probing their knowledge, experiences, and interest in citizen science. This contribution highlights findings of both surveys and the discussions on these findings during the Poster session of the engaging citizen science conference 2022 in Aarhus, Denmark.