DERPART is a travel-agency franchise network operating under the umbrella of the DERTOUR Group (DER Touristik), the tourism arm of one of Europe's large retail groups. What sets it apart is that it isn't a top-down chain but a partner system in which each franchisee also holds a stake in the network — operators sit on equal footing rather than as mere licensees, while still trading under a nationally known travel brand backed by the DER letters.