Related image HotelsCombined, a unit of Booking Holdings, is a hotel metasearch engine founded in 2005, with headquarters in Sydney, Australia. The site operates in over 42 languages, handles 130 different currencies and aggregates more than 2 million deals from hundreds of travel sites and hotel chains. The company employs over 200 staff.
  
 Related image Trivago è un metamotore di ricerca online che confronta prezzi di hotel, B&B, ostelli e altri tipi di strutture.Nato in Germania, appartiene al gruppo Expedia e confronta le tariffe alberghiere di hotel analizzando le fonti web, in particolare le OTA.
Il sistema fornisce anche informazioni in tempo reale sulla disponibilità delle camere consentendone la prenotazione sui siti esterni collegati. Il portale, disponibile anche in versione tablet e mobile, raccoglie inoltre le opinioni dei clienti su alberghi e attrazioni turistiche.

Related imageBooking.com is a travel fare aggregator website and travel metasearch engine for lodging reservations. It is owned and operated by and is the primary revenue source of United States-based Booking Holdings. Booking.com is headquartered in Amsterdam.

The website has more than 29,094,365 listings in 143,172 destinations in 230 countries and territories worldwide. Each day more than 1,550,000 room nights are reserved on the website. The site is available in 43 languages. Their slogan is "Homes, houses and everything in between", although in commercials it is "Booking.com: Booking.yeah".
 
Related imagePriceline.com is an American company and a commercial website for finding discount rates for travel-related purchases such as airline tickets and hotel stays. The company facilitates the provision of travel services from its suppliers to its clients. Priceline.com is headquartered in Norwalk, Connecticut, United States and is wholly owned by Booking Holdings. 

Related imageHotels.com is a website for booking hotel rooms online and by telephone. The company has 85 websites in 34 languages, and lists over 325,000 hotels in approximately 19,000 locations. Its inventory includes hotels and B&Bs, and some condos and other types of commercial lodging.[citation needed] Hotels.com was established in 1991 as the Hotel Reservations Network (HRN). In 2001, it became part of Expedia, Inc. and in 2002, changed its name to Hotels.com. The company is operated by Hotels.com LP, a limited partnership located in Dallas, Texas, in the United States