- 10 Karakoy Istanbul
- Ac Hotel Istanbul Macka
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- Ada Karakoy Hotel - Special Category
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- Adahan Decamondo Pera, Autograph Collection
- Adamar Hotel-Special Category
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- Agora Guesthouse
- Air Boss Istanbul Airport and Fair Hotel
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- All Seasons Hotel Istanbul
- Almina Hotel - Special Class
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- Arena Hotel Istanbul
- Aristocrat Hotel
- Armada Istanbul Old City Hotel
- Armagrandi Spina Hotel-Special Category
- Art City Hotel Istanbul
- Artefes Hotel Old City
- Arts Hotel Istanbul - Special Class
- Arts Hotel Taksim
- Aruna Hotel
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- Ascot Hotel Büyükada
- Askoc Hotel & Spa
- Asmali Hotel
- Aspen Hotel
- Asur Hotel
- Asya World Hotel
- Atik Palace Hotel
- Avantgarde Levent
- Avantgarde Urban Taksim
- Avcilar Inci Hotel
- Ayasultan Hotel
- Aybar Hotel & Spa
- Ayramin Hotel Taksim
- Azade Hotel
- Bahaus Guesthouse Hostel
- Bankerhan Hotel
- Basileus Hotel
- Bekdas Hotel Deluxe
- Bella Vista Hostel
- Bentley Hotel Bosphorus - Special Class
- Bereket Apart Hotel
- Berjer Boutique Hotel & Spa
- Berr Hotel
- Best Nobel Hotel
- Best Nobel Hotel 2
- Best Western Empire Palace
- Beyoglu Huzur Hotel
- Biz Cevahir Hotel Sultanahmet
- Blisstanbul Hotel
- Blue Istanbul Hotel Taksim
- Blueway Hotel Historical
- Bof Hotels Ceo Suites Atasehir
- Boris Hotel
- Boutique Saint Sophia
- Bricks Hotel Istanbul
- Bristol Hotel
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- Business Life Boutique Hotel
- Butik Pendik Hotel
- Byotell Hotel Istanbul
- CVK Park Bosphorus Hotel Istanbul
- CVK Taksim Hotel Istanbul
- Carlton Hotel
- Cartoon Hotel
- Celal Sultan Hotel Special Class
- Cevahir Hotel Istanbul Asia
- Cheers Hostel
- Cheers Lighthouse
- Cheya Besiktas Istanbul Bosphorus City Center Hotel & Suites
- Cihangir Hotel
- Ciragan Palace Kempinski Istanbul
- City Center Hotel Taksim
- Cityloft 81
- Clarion Hotel Golden Horn
- Clarion Hotel Istanbul Mahmutbey
- Collage Pera Hotel
- Concept Nisantasi Hotels & Spa
- Conrad Istanbul Bosphorus
- Crowne Plaza Istanbul - Asia
- Crowne Plaza Istanbul - Florya
- Crowne Plaza Istanbul - Harbiye
- Crowne Plaza Istanbul - Old City
- Crowne Plaza Istanbul - Oryapark
- Cumbali Luxury Boutique Hotel
- Darkhill Hotel
- Daru Sultan Hotels Galata
- Darussaade Istanbul Hotel
- Dedeman Bostanci Istanbul Hotel & Convention Center
- Dedeman Istanbul
- Delta Hotel Istanbul
- Delta Hotels By Marriott Istanbul Levent
- Delta Hotels by Marriott Istanbul West
- Deluxe Golden Horn Sultanahmet Hotel
- Deluxe Newport Hotel
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- Derpa Suite Hotel Osmanbey
- Dersaadet Hotel Istanbul
- Divan Istanbul
- Divas Hotel
- Diyar Hotel
- Dosso Dossi Hotels & Spa Downtown
- Dosso Dossi Hotels & Spa Golden Horn
- Dosso Dossi Hotels Old City
- DoubleTree by Hilton Istanbul - Avcilar
- DoubleTree by Hilton Istanbul - Moda
- DoubleTree by Hilton Istanbul - Old Town
- DoubleTree by Hilton Istanbul - Piyalepasa
- DoubleTree by Hilton Istanbul - Sirkeci
- DoubleTree by Hilton Istanbul Topkapi
- DoubleTree by Hilton Istanbul Umraniye
- Edition Old City Hotel
- Elemet Taksim Suites
- Elite World Comfy Istanbul Taksim
- Elite World Grand Istanbul Basin Ekspres
- Elite World Grand Istanbul Kucukyali
- Elite World Istanbul Florya
- Elite World Istanbul Taksim
- Emporium Hotel
- Enderun Hotel
- Endless Suites Taksim
- Erboy Hotel Istanbul
- Eresin Hotels Sultanahmet - Boutique Class
- Eresin Hotels Topkapi
- Esans Hotel - Special Class
- Euro Park Otel
- Eurostars Hotel Old City
- Express Inci Airport Hotel
- Fairmont Quasar Istanbul
- Faros Hotel Old City - Special Category
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- Fer Hotel
- Ferman Hilal Hotel
- Ferman Hotel Old City -Special Category
- Feronya Hotel
- Four Points Express by Sheraton Istanbul Taksim Square
- Four Seasons Hotel Istanbul at Sultanahmet
- Four Seasons Hotel Istanbul at the Bosphorus
- Fraser Place Antasya Istanbul
- Fraser Place Anthill Istanbul
- Fuar Hotel
- GLK PREMIER Regency Suites & Spa
- Galata Antique Hotel
- Galley Hotel
- Garden House Hotel - Special Class
- Gen Suites
- Georges Hotel Galata
- Germir Palas Hotel - Special Class
- Gezi Hotel Bosphorus, Istanbul, a Member of Design Hotels
- Glamour Hotel
- Glens Palas Istanbul
- Glk Premier Sea Mansion Suites & Spa
- Glorious Hotel
- Golden Age Hotel Taksim
- Golden Ak Marmara Hotel
- Golden Horn Hotel
- Golden Horn Istanbul Hotel
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- Gorrion Hotel Istanbul
- Grand Anka Hotel
- Grand Aras Hotel & Suites
- Grand As Hotel
- Grand Bazaar Hotel
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- Grand Cevahir Hotel Convention Center
- Grand Esen Hotel
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- Grand Hotel Gulsoy
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- Grand Hotel Palmiye
- Grand Hyatt Istanbul
- Grand Istanbul Airport Hotel
- Grand Palace Hotel
- Grand Rosa Hotel
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- Grand Star Hotel Bosphorus & Spa
- Grand Unal Hotel
- Grand Yavuz Hotel
- Great Fortune Hotel & Spa
- Gulhane Corner Hotel
- Gulhanepark Hotel & Spa
- Gunes Hotel Merter
- Gökçe Pansiyon - Adult Only - Hostel
- HHK Hotel
- HHK Hotel Downtown
- Halifaks Hotel
- Hammamhane
- Hampton by Hilton Istanbul Atakoy
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- Han Hotel
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- Hilton Garden Inn Istanbul Airport
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- Hippodrome Hotel
- Holiday Inn Istanbul - Sisli
- Holiday Inn Istanbul City
- Honey Hotel
- Hotel 1453
- Hotel Agan
- Hotel Akcinar
- Hotel Amira Istanbul
- Hotel Arcadia Blue Istanbul
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- Hotel Erguvan - Special Category
- Hotel Evsen
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- Hotel Ibrahim Pasha
- Hotel Ilkay
- Hotel Ipek Palas
- Hotel Le Mirage
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- Hotel Momento - Special Class
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- Hotel Morione & Spa Center
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- Hotel Pera Capitol
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- Hotel Sultanhan - Special Category
- Hotel Sultania Boutique Class
- Hotel The Pera Hill
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- Hotel Troya
- Hotel Tulip House
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- Hurry Inn Merter Istanbul
- Hyatt Centric Levent Istanbul
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- Hypnos Design Hotel
- Ibis Istanbul Esenyurt
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- Idylle Hotel
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- Innova Sultanahmet Istanbul
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- Intercontinental Istanbul, An IHG Hotel
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- Isg Sabiha Gökçen Airport Hotel
- Istanbul Comfort Hotel
- Istanbul Dedem Hotel 1
- Istanbul Dora Hotel
- Istanbul Golden City Hotel
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- Istanbul Life Hotel
- Istanbul Marriott Hotel Asia
- Istanbul Marriott Hotel Pendik
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- Istanbul My Assos Hotel
- Istanbul Royal Hotel
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- Juliet Rooms & Kitchen
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- Kemer Country Hotel
- Kent Hotel Istanbul
- Kevin's Hostel
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- Lady Diana Hotel
- Lalahan
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- Legacy Ottoman Hotel
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- Levni Hotel & Spa - Special Category
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- Lion Hotel
- Lionel Hotel Istanbul
- Lokalist, Istanbul, a Tribute Portfolio Hotel
- Loren Hotel&Suites
- Lotus Hotel
- Manesol Boutique Galata
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- Marble Hotel
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- Mayi Hotel
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- Mercure Istanbul Bomonti
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- Meroddi Pera Flats
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- Mosaic Hotel Old City -Special Category
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- Mövenpick Hotel Istanbul Bosphorus
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- Nagehan Hotel Old City
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- Nearport Hotel
- Neda Hotel Istanbul
- Neorion Hotel - Special Class
- New Fatih Hotel
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- Nidya Hotel Esenyurt
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- Nobel Hostel Guesthouse
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- Nova Plaza Crystal Hotel
- Novotel Istanbul Karakoy
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- Nowy Efendi Hotel - Special Class
- Nuru Ziya Suites
- Occidental Taksim
- Old City Viva Hotel
- Opera Hotel Bosphorus
- Oran Hotel
- Orient Express & Spa by Orka Hotels
- Orient Mintur Hotel
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- Ottoman Hotel Imperial - Special Class
- Ottomans Life Hotel S Class
- Ottopera Hotel
- Palazzo Donizetti Hotel - Special Class
- Park Dedeman Bostanci Hotel
- Park Hyatt Istanbul - Macka Palas
- Park Inn by Radisson Istanbul Airport, Odayeri
- Park Inn by Radisson Istanbul Ataturk Airport
- Park Star Hotel Taksim
- Parmada Hotel
- Peninsula Galata Boutique Hotel
- Pera Palace Hotel
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- Perazre Hotel
- Pianoforte by Febor Hotels&Spa
- Pierre Loti Hotel Old City-Special Class
- Piya Sport Hotel
- Point Hotel Barbaros
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- Port Bosphorus Hotel
- Premist Hotels Sultanahmet
- Prestige Hotel Old City
- Promise
- Pullman Istanbul Hotel & Convention Center
- Radisson Blu Bosphorus Hotel, Istanbul
- Radisson Blu Hotel & Spa, Istanbul Tuzla
- Radisson Blu Hotel Istanbul Ottomare
- Radisson Blu Hotel, Istanbul Asia, Turkey
- Radisson Blu Hotel, Istanbul Pera
- Radisson Blu Hotel, Istanbul Sisli
- Radisson Collection Hotel, Vadistanbul
- Radisson Hotel President Beyazit Istanbul
- Raffles Istanbul
- Ragip Pasha Apartments
- Ramada By Wyndham Istanbul Taksim
- Ramada Encore by Wyndham Istanbul Bayrampasa
- Ramada Hotel & Suites by Wyndham Istanbul Merter
- Ramada Hotel & Suites by Wyndham Istanbul Sisli
- Ramada Plaza by Wyndham Istanbul Atakoy
- Ramada Plaza by Wyndham Istanbul City Center
- Ramada Plaza by Wyndham Istanbul Tekstilkent
- Ramada by Wyndham Istanbul Alibeykoy
- Ramada by Wyndham Istanbul Florya
- Ramada by Wyndham Istanbul Golden Horn
- Ramada by Wyndham Istanbul Grand Bazaar
- Ramada by Wyndham Istanbul Old City
- Ramada by Wyndham Istanbul Pera
- Rast Hotel Sultanahmet
- Ravouna 1906 Bosphorus Istanbul
- Ravvda Hotel
- Regard Hotel
- Regie Ottoman Istanbul
- Renaissance Istanbul Polat Bosphorus Hotel
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- Renata Boutique Hotel Sisli
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- Reyyan Hotel
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- Room Mate Emir
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- Seven Dreams Hotel
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- Shangri-La Bosphorus, Istanbul
- Sheraton Grand Istanbul Atasehir
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- Sirkeci Ersu Hotel
- Sirkeci Mansion
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- Sirkeci Quietness Hotel
- Skalion Hotel & Spa
- Sogut Hotel Old City
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- Sokullu Pasa Hotel - Special Class
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- Style Hotel Sisli
- Sub Karakoy - Special Category
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- Sultan Corner Suites
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- Swissotel The Bosphorus Istanbul
- TRYP by Wyndham Istanbul Basin Ekspres
- Taksim Gonen Hotel
- Taksim Line Hotel
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- Taksim Star Hotel
- Tan Hotel - Special Class
- Tango Arjaan by Rotana Istanbul Asia
- Tashkonak Hotel
- Taxim Hill Hotel
- Taxim Lounge Hotel Special Category
- Taximist Hotel
- The Artisan Istanbul MGallery
- The Bank Hotel Istanbul, a Member of Design Hotels
- The Bostanci Hotel
- The Byzantium Suites Hotel & Spa
- The Central Hotel
- The Central Palace Taksim
- The Elysium Taksim
- The G Hotels Istanbul
- The Galata Istanbul Hotel - MGallery
- The Grand Mira Business Hotel
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- The Green Park Bostanci
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- The Haze Karaköy
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- The Meretto Hotel Istanbul Old City
- The Million Stone Hotel - Special Class
- The Parma Hotel Taksim
- The Ritz-Carlton Istanbul
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- The Stay Bosphorus
- The Stay Boulevard Nisantasi
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- The Story Hotel Pera
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- The White Orient Hotel
- Tilia Hotel
- Titanic Business Kartal
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- Tomtom Suites
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- Vavien Hotel
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- Villa Pera Suite Hotel
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- Viva Deluxe Hotel
- Vogue Hotel Supreme Istanbul
- Wabi Hostels
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- Windsor Hotel & Convention Center Istanbul
- Wish More Hotel Istanbul
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- Wyndham Grand Istanbul Europe
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- Wyndham Grand Istanbul Levent
- Wyndham Istanbul Old City
- Yeni Hotel
- Zagreb Hotel
- Zimmer Bosphorus Hotel
- ibis Istanbul Zeytinburnu
- ibis Styles Istanbul Bomonti
