Hotels.com
Online accommodation booking service offering hotel reservations worldwide.
United States
European Options
HomeToGo
Germany
German vacation rental search engine aggregating listings from multiple providers.
TUI
Germany
German multinational travel and tourism company offering holiday packages, hotels, and cruises.
Trivago
Germany
German hotel and travel search engine helping users compare accommodation prices worldwide.
Apollo
Sweden
Nordic travel agency specializing in vacation packages, flights, and hotels.
Booking.com
Netherlands
Dutch online travel agency specializing in hotel and accommodation bookings.