Mareile is German nationality who was the founder of the Reiselust travel company in Kiel Germany. She is the coordinator of Belmont adventure Pvt. Ltd. of Nepal in Germany. She has been conducting different kind of tour management including air ticketing all over the world in reasonable cost beside that she organizes tour, trekking and mountaineering program in Nepal. Mareile has been involved in various social welfare programmes in Nepal since 2004.