Ciutadella is the branding typeface of Hotel.de GmbH. Founded in 2001 and headquartered in Nuremberg, Germany, the company runs internet platforms for booking hotel rooms. It “first offered services exclusively for the German-language market under the domain hotel.de. In 2006, the company began expanding abroad, and the international offerings in the UK, France, Spain and Italy were grouped under hotel.info two years later. Hotel.de AG receives a commission for reservations made via the site. There are also apps for iOS and Android smartphones.” – Wikipedia
Ciutadella is used throughout the identity, from the all-caps logo to the websites which feature the typeface in three weights; Regular, Medium, and Bold.