DER Deutsches Reisebüro Derpart Dertour Jahn Reisen ITS Meiers Weltreisen ADAC Reisen Travelix Lti hotels Club Calimera Cooee Kuoni Helvetic Tours
ITS Coop Travel Billa Reisen Koning Aap Prijsvrij Apollo Exim Holding
Touristik der REWE Group