Siegbert Mattheis, based in Berlin, DE, is currently a CEO at Travel Appetizer, bringing experience from previous roles at Selbstständig, Mattheis. Werbeagentur GmbH, eat! berlin – Das Feinschmeckerfestival and www.ambiente-mediterran.de. Siegbert Mattheis holds a 1987 - 1991 Diplom-Designer @ HdK (jetzt Udk) Berlin. With a robust skill set that includes Social Media Marketing, Marketingstrategie, Marketing, Social Media, Projektmanagement and more, Siegbert Mattheis contributes valuable insights to the industry. Siegbert Mattheis has 1 email on RocketReach.