
Booking.com is an online travel agency for lodging reservations. It is owned and operated by and is the primary revenue source of United States-based Booking Holdings and is headquartered in Amsterdam.

Bravofly.com is an online travel agency owned by the Lastminute.com Group. It is available in 14 languages. It has offices in Chiasso, Switzerland, where it has its operational headquarters, and in Madrid, Spain.

Busbud is a travel website specializing in intercity bus tickets.

BYHOURS is a Spanish company and first hotelmicrostays booking platform where hotels can be booked by the hour. Guests can decide the time of arrival and pay for the time they need.

EaseMyTrip is an Indian online travel company founded in 2008 by Nishant Pitti, Rikant Pitti, and Prashant Pitti. Headquartered in New Delhi, the company provides hotel bookings, air tickets, holiday packages, bus bookings, and white-label services. EaseMyTrip has overseas offices in Singapore, Dubai, Maldives, and Bangkok.

Expedia Group, Inc. is an American online travel shopping company for consumer and small business travel. Its websites, which are primarily travel fare aggregators and travel metasearch engines, include CarRentals.com, Expedia.com, HomeAway, Hotels.com, Hotwire.com, Orbitz, Travelocity, trivago and Vrbo.

GetYourGuide is a Swiss online travel agency and online marketplace for tour guides and excursions. It is accessible via website and mobile app for iOS and Android.

Google Flights is an online flight booking search service which facilitates the purchase of airline tickets through third-party suppliers. It was launched by Google in 2011 following a buyout.

H.I.S. Co., Ltd. (株式会社エイチ・アイ・エス) is a travel agency based in the Shinjuku Oak Tower in Nishi-Shinjuku, Shinjuku, Tokyo, Japan, specializing in low-cost package tours. The company was founded as International Tours Co., Ltd. in 1980 by Hideo Sawada, born in 1951, and renamed "H.I.S." in 1990.

HotelQuickly was a hotel booking website and smartphone app. The company was bought and lead by Rising Sun Jerome Cle in August 2017 The company then ceased operations in December 2018, cancelling thousands of bookings without providing refunds.

HotelTonight is a travel agency and metasearch engine owned by Airbnb and accessible via website and mobile app used to book last-minute lodging in the Americas, Europe and Australia.

Hurb is the largest online travel agency based in Brazil. Founded in January, 2011 by brothers José Eduardo and João Ricardo Mendes, Hurb was valued at 2 billion reais or approximately US$500 million when Booking Holdings purchased a small percentage for US$60 million in 2015, although this investment was totally written off and sold at an undisclosed price in 2016. Its headquarters are in the city of Rio de Janeiro.

Kayak.com, sometimes styled as KAYAK, is a travel agency and metasearch engine owned and operated by Booking Holdings. The company also runs travel search engines checkfelix, Mundi, Hotels Combined, and swoodoo.

MakeMyTrip is an Indian online travel company founded in 2000. Headquartered in Gurugram, Haryana, the company provides online travel services including flight tickets, domestic and international holiday packages, hotel reservations, rail, and bus tickets. As of 31 March 2018, they have 14 company-owned travel stores in 14 cities, over 30 franchisee-owned travel stores in 28 cities, and counters in four major airports in India. MakeMyTrip has offices in New York, Singapore, Kuala Lumpur, Phuket, Bangkok, and Dubai.

Musement is an online platform for activities, tours, museums, shows and art events which launched in March 2014 a service initially focused in Europe and then progressively expanding to the rest of the world. Musement aggregates third-party activities and tickets for users to book online. Tour suppliers have access to upload and manage various activities through the platform. The company's offers are available via website, iOS and Android. Once a customer books an activity, he or she receives a digital voucher or e-ticket for the reservation which can be saved on their device or printed. The company has four major competitors in this market, Viator, GetYourGuide, Berlin-based startup, Klook, Hong Kong-based startup, and Peek.com, a U.S.-based startup. The headquarters are located in Milan.

On the Beach Group plc is a UK-based travel retailer specialising in short and medium haul ‘Flight + Hotel’ holidays to Europe. It is listed on the London Stock Exchange.

Orbitz.com is a travel fare aggregator website and travel metasearch engine. The website is owned by Orbitz Worldwide, Inc., a subsidiary of Expedia Group. It is headquartered in the Citigroup Center, Chicago, Illinois.

Ostrovok.ru is a Russian online hotel booking service, founded in 2010 by Serge Faguet and Kirill Makharinsky. It has over one million accommodation options. The number of users of the service was estimated at 5.4 million people in August 2018, according to SimilarWeb. The company's turnover in 2018 amounted to $713 million. Partners of Ostrovok.ru include the companies Megafon, HotelsCombined, TripAdvisor, Sheremetyevo Airport, Aviasales.ru, and Kayak. The head office of the company is located in Moscow.

Pickyourtrail.com, formerly Travel Troops Global Private Ltd, is an Indian travel and technology website and an online vacation packages booking platform and engine. The website uses global distribution systems such as Amadeus IT Group and Viator for flights, and Expedia for online hotel bookings.

Qunar.com is a Chinese online travel agency headquartered in Beijing. Qunar means "Where to go" in Chinese.

STA Travel was a Travel Supplier supplying travel products and service to the general public through their 200 retail travel agency stores located globally. It was owned by Diethelm Keller Holding (DKH), with headquarters in Zurich and London. It had almost 2,000 employees working in over 200 stores worldwide.

Travana Inc. was an online travel agency (OTA) co- founded in 2015 by Jason Chen, an American entrepreneur. The compagny was headquartered in San Francisco, California with janbala.com as its online representation. About 90% of Travana's equity stake was owned by HNA Group, a Chinese conglomerate based in Haikou, Hainan, China. However, Travana suddenly closed amid controversies in 2016 after only 14 months of operation.

Travix International BV is a company that manages several travel websites operating in various countries. The company maintains headquarters in Amsterdam, Netherlands.

Trip.com Group Limited provides travel services including accommodation reservation, transportation ticketing, packaged tours and corporate travel management. Founded in 1999, the company owns and operates Trip.com, Skyscanner, Qunar, and Ctrip, all of which are online travel agencies.

The Trump Organization is a group of about 500 business entities of which Donald Trump is the sole or principal owner. About 250 of these entities use the Trump name. The organization was founded in 1923 by Donald Trump's grandmother, Elizabeth Christ Trump, and his father, Fred Trump, as E. Trump & Son. Donald Trump began leading it in 1971, renamed it around 1973, and handed off its leadership to his children in 2017.

Tuniu Corporation is a Chinese online travel agency. Products and services include packaged tours, accommodation reservation, airline and railway ticketing, car rentals, and corporate travel. The company listed on the Nasdaq Stock Exchange on May 9, 2014. The company headquarters are located in Nanjing with offices in Shanghai and Beijing.

Via.com formerly known as FlightRaja.com is a travel portal and online travel company based in Bangalore, India. Via.com networks with more than 100,000 partners across 10,000 towns and cities globally. Via was founded on July 25, 2006 and was incorporated in May 2007.

Visit Ventures is an Egyptian/British company organized in London and based in Cairo, Egypt, that owns and operates a travel fare aggregator and travel guide meta-search engine. It's flagship website is Visit Guide that operates in about 14 countries.

Voyagin is a tours and activities online booking platform headquartered in Tokyo. The company was founded in 2011 as FindJPN, and rebranded as Voyagin in 2012 by co-founders Masashi Takahashi, Tushar Khandelwal and Hiroyuki Hayashi. They operate under their official website govoyagin.com
Webjet Limited is a digital travel business spanning both global consumer markets and wholesale markets. Webjet Limited's Registered Office is located in Melbourne, Australia.

Wotif.com is a website that provides a reservation service for hotels in Australia and international destinations across the globe. It was set up in March 2000 by Graeme Wood in Brisbane, Australia. It has since established offices in Canada, Malaysia, New Zealand, Singapore and the United Kingdom. Wotif.com was listed on the Australian Stock Exchange on June 2, 2006, but unlisted when it was acquired by Expedia, Inc..

Yatra.com is an Indian online travel agency and travel search engine. It is based in Gurugram, Haryana. It was founded by Dhruv Shringi, Manish Amin and Sabina Chopra in August 2006.

YTB International, known as YTB Global Travel, Your Travel Biz or YTB, operates a multi-level marketing business through owner-affiliate websites offering travel, excursions, and lodging. The company was founded in 2001 by J. Lloyd Tomer, Scott Tomer and Kim Sorensen. The company is currently owned by U.S. businessman Sam Hathi of Jamraval, Inc. Other YTB subsidiaries include YTB Travel Network, Inc., Zamzuu, Inc., and REZconnect Technologies, Inc (2004–2009). YTB is based in Wood River, Illinois. International subsidiaries operate in the U.S., Puerto Rico, the Bahamas, Bermuda and Canada.