Hotel Chains
- AC HOTELS
- ACCOR Hotels
- ANA Hotels International
- ATT Hotels
- Abba Hoteles
- Acc-Nifos Hotels
- Active Hotels
- Adagio City Aparthotel
- Affinia Hospitality
- All Seasons Europe
- Aloft
- AltiusPar
- Ambassador Group
- AmeriSuites
- AmericInn
- Andre Balazs Properties
- Art' otel
- Ascend Collection
- Aston Hotels and Resorts
- Astron Hotels & Resorts
- Atel Hotels
- Axcess Hotels
- Banyan Tree Hotels
- Barcelo Hotels
- Baymont Inn & Suites
- Best Value Inn and Suites
- Best Western International
- BlackPepper Hotels
- Boscolo Hotels
- Boutique
- Boutique Desires Hotels
- Bulgari Hotels
- Caesar Park Hotels & Resorts
- Cambria Suites
- Camino Real Hotels & Resorts
- Candlewood Suites
- Carino Hotels and Resorts Worldwide
- City Partner Hotels
- Clarion
- Classic British Hotels
- Classic International Hotels
- Classical Hotels
- Club Mahindra
- Club Quarters
- ClubHouse Inn & Suites
- Coast Hotels
- Coastal Hotels
- Columbus Reservation Services
- Comfort Inns
- Comfort Suites
- Concorde Hotels
- Confortel Hotels
- Conrad Hotels CN
- Coral International
- Country Inns & Suites
- Courtyard by Marriott
- Crowne Plaza Hotels and Resorts
- Days Inn
- De Vere Hotels
- Delta Hotels
- Derag Hotels
- Design Hotels
- Destination Hotels & Resorts
- Dolce International
- Dorchester Group Hotels
- Dorint Hotels & Resorts
- Doubletree Hotels
- Drury Hotels
- EaziRes Hotels
- Econo Lodge
- Element
- Embassy Suites
- Envergure Hotels
- Epoque Hotels
- Exclusive Hotels
- Executive Hotels and Resorts
- Extended StayAmerica
- Fairfield Inn by Marriott
- Fairmont Hotels
- Fiesta Americana Hotels & Resorts
- First Hotels
- Flag Hotels
- Fontainebleau Resorts
- Fortune Group
- Four Points by Sheraton
- Fullerton Singapore
- Garden Inn
- Gaylord Entertainment
- GenaRes Worldwide Reservation Services
- Ginger Group
- GlobRes
- Global Conextions
- Global Hotel Alliance
- Golden Tulip
- Grand Heritage Hotels
- Grand Hospitality
- Grand Pineapple Beach Resorts
- Grange Hotels
- Great Hotels of the World
- Gresham Hotels Group PLC
- GuestHouse International
- Hampton Inn/Hampton Inn and Suites
- Hard Rock Hotels
- Hard Rock Hotels Resorts and Casinos
- Harrahs Entertainment
- Hilton Hotels and Resorts(US)
- Hilton International
- Historic Hotels of America
- Holiday Inn Express
- Holiday Inn Hotels and Resorts
- Homewood Suites
- Horse21 Hotels
- Hot Key International
- Hot Rate Hotels
- Hotel AG
- Hotel Provider SRL
- Hotel Red
- HotelQuest International Inc.
- HotelREZ
- Hotelbook
- Hoteles Marquis
- Hotels and Preference
- Hotelzon International Ltd
- Hotlink Hotels
- Hotusa Hotels
- Howard Johnson Plazas Hotels Inns and Express Inns
- Hyatt Hotels and Resorts
- Hyatt Vacation Club
- IBIS - Accor hotels
- ITWG - Italy and world hotels
- Ian Schrager Hotels
- Independent Hotels
- Indigo
- InnLink Inns
- InnPoints Reserv
- InnPoints Worldwide
- InnVite
- Inter-Continental Hotels and Resorts
- InterCity Hotels
- Jebel Ali International Hotels
- Joie de Vivre
- Jolly Hotels
- Jumeirah
- Jurys Doyle Hotel Group
- Jurys Inns
- KSL Resorts
- Kempinski Hotels & Resorts
- Kerry Hotels
- Keytel
- Kimpton Hotel and Restaurant Group LLC.
- Knights Inn
- La Quinta
- Langham Hotels
- Le Meridien
- Leading Hotels of the World
- Leela Group
- LeisureLink
- Lemon Tree Group
- Leonardo Hotels
- Lexington Collection
- Lexington Services
- Loews Hotels
- Lucien Barriere
- Luxe Worldwide Hotels
- Luxury Lifestyle Hotels & Resorts
- Luxury Resorts
- MERCURE - Accor Hotels
- MGM Grand Hotels
- MI Independent Property
- Macdonald Hotels
- Magnolia Hotels and Resorts
- Magnuson Group
- MainStay Suites
- Malmaison Hotels
- Mandarin Oriental Hotel Group
- Marc Resorts
- Marco Polo Hotel Group
- Maritim Hotels
- Marriott Conference Centers
- Marriott Group
- Marriott International Vacation Club
- Mercure Gallery
- Meristar Hotels and Resorts
- Meritus Hotels & Resorts
- Microtel Inns & Suites
- Millennium & Copthorne Hotels
- Morgan's Hotel Management Group
- Motel One
- Movenpick Hotels & Resorts
- Myfidelio.net
- NOVOTEL - Accor Hotels
- New Otani Hotels
- Nikko Hotels International
- Noble House
- Norlandia Hotels
- Novotel
- ORBIS
- Oberoi Group
- Okura Hotels & Resorts
- Omni Hotels
- One and Only Hotels
- Orient-Express Hotels
- Otedis Hotels
- Othon Hotels
- Outrigger Hotels Hawaii
- Pan Pacific Hotels and Resorts
- Paramount Hotels
- Park Inn
- Park Plaza
- Park Plaza International
- Parkroyal
- Plaza Pacific Hotels and Resorts
- Preferred Hotels and Resorts Worldwide
- Prince Resorts Hawaii & Alaska
- Principal Hotels
- Pullman
- QHOTELS
- Quality Inns
- Quality Reservations
- REZOnline
- RIHGA Royal Hotels
- Radisson Group
- Raffles International Hotels and Resorts
- Ramada International
- Ramada Plazas Limiteds and Inns
- Red Lion Hotels & Inns
- Red Roof Inns
- Relais & Chateaux
- Renaissance Hotels and Resorts
- ReservHOTELs
- Residence Inn by Marriott
- Resort Bookings
- Resort Quest International
- Rezmax
- Ringhotels
- Ritz-Carlton Hotels
- Rocco Forte Hotels
- Rockresorts
- Rodeway Inn
- Rosewood Hotels and Resorts
- Rydges Hotels
- SOFITEL - Accor Hotels and Resorts
- SRS-WorldHotels
- STARHOTELS
- SUITE HOTELS - Accor Hotels
- Sandals Resorts
- Sandman Hotels
- Sarova Hotels
- Savoy Group of Hotels
- Scandic Hotels
- Sceptre
- Select Marketing
- Sercotel Hoteles Independientes
- Shangri-La Hotels and Resorts
- Sheraton Hotels and Resorts
- Shilo Resorts
- Sierra Suites Hotels
- Signature/Jameson Inns
- Six Senses Resorts & Spas
- Sleep Inns
- Sofitel Hotels & Resorts
- Sokos Hotels
- Sol Melia
- Sonesta Hotels and Resorts
- Special Properties of InterContinental Hotels
- SpringHill Suites
- St Regis
- St. Regis Luxury Collection
- Staybridge Suites by Holiday Inn
- Steigenberger
- Sterling Hotels and Resorts
- Studio 6
- Suburban Hotels
- Summit Hotels and Resorts
- Super 8 Motels
- SuperClubs
- Supranational Hotels
- Swissôtel
- Switzerland Destination Management
- SynXis® Hotels and Resorts
- TOP International Hotels
- TRADYSO (TRAVEL DYNAMIC SOLUTIONS)
- TShotels
- Taj Group
- The Charming Hotels of the World
- The Lalit
- The Luxury collection
- The Peninsula Hotels
- The Regency Hotel Group
- The Small Hotel Company
- Thistle Hotels
- TownePlace Suites
- TravTech
- Travelodge
- Travelodge UK
- Trident Group
- Trident Hotels
- Unirez
- Univisit
- Utell
- VIP International
- Vagabond Inns
- Villager
- W Hotels
- Waldorf Astoria
- Warwick International Hotels
- Webres GmbH
- Wellesley Inn and Suites
- Westin Hotels and Resorts
- Wingate Inns
- Woodfin Suites
- Wyndham Hotels and Resorts
- XN Corporation
- Your Hotel Worldwide
- iHotelier
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