GapFish is an ISO-certified panel provider based in Berlin. Our EntscheiderClub has over 300,000 participants with different segmentations in Germany, Austria and Switzerland. Among other things, we guarantee the high quality of our panels by using up-to-date participant profiles. We cooperate with the Mediengruppe RTL Deutschland, the SPIEGEL Group, Gemius, Mediakraft, the Austrian Gallup Institute and other renowned partners to offer special panels. Our cookie and tracking panels are the ideal tools to explore the impact of advertising. Among other things, our mobile studies support the targeted research of the buying behavior of the users and the advertisement displayed. In addition, we offer a survey app in the corporate design or in the design of your customer.