- 10 Karakoy Istanbul
- Ac Hotel Istanbul Macka
- Ada Hotel Istanbul
- Ada Karakoy Hotel - Special Category
- Adahan Decamondo Pera, Autograph Collection
- Adamar Hotel - Special Class
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- Agora Life Hotel - Special Class
- Air Boss Istanbul Airport and Fair Hotel
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- Antique Hostel & Guesthouse
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- Armagrandi Spina Hotel-Special Category
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- Arts Hotel Taksim
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- Avantgarde Hotel Levent
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- Balin Hotel - Special Category
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- Bentley Hotel Bosphorus - Special Class
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- Berjer Boutique Hotel & Spa
- Berlin Hotel Nisantasi
- Best Nobel Hotel
- Best Nobel Hotel 2
- Best Western Empire Palace
- Beyoglu Huzur Hotel
- Birlik Apart Hotel
- Biz Cevahir Hotel Sultanahmet
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- Blueway Hotel Historical
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- Burgu Arjaan by Rotana
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- CVK Park Bosphorus Hotel Istanbul
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- Carlton Hotel
- Cartoon Hotel
- Celal Sultan Hotel Special Class
- Cevahir Hotel Istanbul Asia
- Cheers Hostel
- Cheers Lighthouse
- Cheers Midtown Hostel
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- Chillout Lya Hostel & Lounge
- Cihangir Hotel
- Ciragan Palace Kempinski
- City Center Hotel Taksim
- Cityloft 81
- Clarion Hotel Golden Horn
- Clarion Hotel Istanbul Mahmutbey
- Collage Pera Hotel
- Comfort Elite Hotels Old City
- Concept Nisantasi Hotels & Spa
- Conrad Istanbul Bosphorus
- Corinne Art & Boutique Hotel
- Crowne Plaza Istanbul - Asia
- Crowne Plaza Istanbul - Florya
- Crowne Plaza Istanbul - Harbiye
- Crowne Plaza Istanbul - Old City
- Crowne Plaza Istanbul - Oryapark
- Cuento Hotel
- Darkhill Hotel
- Daru Sultan Hotels Galata
- Darussaade Istanbul - Special Class
- Dedeman Bostanci Istanbul Hotel & Convention Center
- Dedeman Istanbul
- Delta Hotel Istanbul
- Delta Hotels By Marriott Istanbul Levent
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- Deluxe Golden Horn Sultanahmet Hotel
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- Derpa Suite Hotel Osmanbey
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- Diamond Royal Hotel
- Dila Hotel
- Divalis Hotel
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- Divas Hotel
- Diyar Hotel
- Dosso Dossi Hotels & Spa Downtown
- Dosso Dossi Hotels & Spa Golden Horn
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- 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
- Elasophia Hotel
- Elemet Taksim Suites
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- Elite World Comfy Istanbul Taksim
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- Emir Hotel
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- Endless Suites Taksim
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- Erenler Hotel & Hostel
- Eresin Hotels Sultanahmet - Boutique Class
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- Erten Konak
- Euro Park Otel
- Eurostars Hotel Old City
- Express Inci Airport Hotel
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- Faros Hotel Old City - Special Category
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- Ferman Sultan Hotel
- Feronya Hotel
- Four Seasons Hotel Istanbul at Sultanahmet
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- Fraser Place Antasya Istanbul
- Fraser Place Anthill Istanbul
- Fuar Hotel
- Fuat Pasa Yalisi - Special Category Bosphorus
- 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
- Gk Regency Suites Hotel
- Glamour Hotel Istanbul Sirkeci
- Glk Premier Sea Mansion Suites & Spa
- Golden Age Hotel Taksim
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- Golden Horn Hotel - Special Class
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- Grand Anka Hotel
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- Grand Hotel Gulsoy
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- Gulhane Corner Hotel
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- Gunes Hotel Merter
- HHK Hotel
- Halifaks Hotel
- Hamit Hotel
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- Hampton by Hilton Istanbul Atakoy
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- Han Hotel
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- Hilton Garden Inn Istanbul Ataturk Airport
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- Hilton Istanbul Bomonti Hotel & Conference Center
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- Hippodrome Hotel
- Holiday Inn Express Istanbul - Altunizade
- Holiday Inn Istanbul - Kadikoy
- Holiday Inn Istanbul - Sisli
- Holiday Inn Istanbul City
- Honey Hotel
- Hotel Agan Oldcity Istanbul
- Hotel Akcinar
- Hotel Alilass
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- Hotel Antique
- Hotel Arcadia Blue Istanbul
- Hotel Bazaar
- Hotel Black Tulip
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- Hotel Erguvan - Special Category
- Hotel Evsen
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- Hotel Nena
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- Hotel Suadiye
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- Hotel Sultania Boutique Class
- Hotel Tashkonak Istanbul
- Hotel The Pera Hill
- Hotel The Public - Special Category
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- Hush Hostel Lounge
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- Innova Sultanahmet Istanbul
- Innpera Hotel
- Intercontinental Istanbul, An IHG Hotel
- Isg Sabiha Gökçen Airport Hotel
- Istanbul Comfort Hotel
- Istanbul Dedem Hotel 1
- Istanbul Dora Hotel
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- Istanbul Gonen Hotel
- Istanbul Marriott Hotel Asia
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- Juliet Rooms & Kitchen
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- Kuzen Otel
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- Lampa Design Hotel - Special Class
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- Luce Di Pera
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- Manesol Boutique Galata
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- Mangana Konak
- Mansion by Cheers
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- Melek Hotels Moda
- Mercure Istanbul Altunizade
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- Merial Hotel Sultanahmet
- Meroddi Bagdatliyan Hotel
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- Mosaic Hotel Old City -Special Category
- Mr Cas Hotels - Special Class
- Muyan Suites
- Mövenpick Hotel Istanbul Bosphorus
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- Nagehan Hotel Old City
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- Nea Suites Old City
- Neda Hotel Istanbul
- Neorion Hotel - Special Class
- New Fatih Hotel
- Nexthouse Pera Hotel
- Nice Royal
- Nidya Hotel Esenyurt
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- Nippon Hotel
- No11 Hotel & Apartments
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- Nova Plaza Crystal Hotel & Spa
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- Novotel Istanbul Karakoy
- Novotel Istanbul Zeytinburnu
- Nowy Efendi Hotel - Special Class
- Numi Hotel
- Nuru Ziya Suites
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- Occidental Taksim
- Old City Viva Hotel
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- Ottoman Hotel Imperial-Special Category
- Ottoman's Life Hotel Deluxe
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- Palazzo Donizetti Hotel - Special Class
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- Park Dedeman Bostanci Hotel
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- Park Inn by Radisson Istanbul Ataturk Airport
- Park Star Hotel Taksim
- Parmada Hotel
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- Pianoforte by Febor Hotels&Spa
- Pierre Loti Hotel Old City- Special Category
- Piya Hostel
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- Promise Hotel
- Puffin Suites
- 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
- Raffles Istanbul
- Ragip Pasha Apartments
- Ramada By Wyndham Istanbul Taksim
- Ramada Encore by Wyndham Istanbul Bayrampasa
- Ramada Hotel & Suites by Wyndham Istanbul Merter
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- Ramada Plaza by Wyndham Istanbul Atakoy
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- Ramada Plaza by Wyndham Istanbul Tekstilkent
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- Rast Hotel Sultanahmet
- Ravvda Hotel
- Raymond Blue Hotel
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- Renaissance Istanbul Polat Bosphorus Hotel
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- Renata Boutique Hotel Sisli
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- Room Mate Emir
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- Sarnic Butik Otel
- Sed Hotel
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- Senatus Hotel - Special Class
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- Seven Dreams Hotel
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- Seyri Istanbul Hotel
- Shangri-La Bosphorus, Istanbul
- Sheraton Grand Istanbul Atasehir
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- Sinem Hotel
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- Skalion Hotel & Spa
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- Sokullu Pasa Hotel - Special Class
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- Sub Karakoy - Special Category
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- Sultan Hostel & Guesthouse
- Sultan House
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- Sultanhan Hotel - Special Class
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- Swissotel The Bosphorus Istanbul
- TRYP by Wyndham Istanbul Basin Ekspres
- Taba Luxury Suites and Hotel
- Taksim Gonen Hotel
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- Tan Hotel - Special Category
- Tango Arjaan by Rotana Istanbul Asia
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- Tempo Hotel 4Levent
- Tempo Suites Airport
- The And Hotel Istanbul - Special Class
- The Artisan Istanbul MGallery
- The Bank Hotel Istanbul, a Member of Design Hotels
- The Biancho Hotel Pera
- The Byzantium Suites Hotel & Spa
- The Central Hotel
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- The Empress Theodora Hotel
- 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 Hera Premium Hotels
- The Hotel Beyaz Saray
- The Magnaura Palace Hotel
- The Marmara Pera
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- The Meretto Hotel Istanbul Old City
- The Million Stone Hotel - Special Class
- The Parma Hotel Taksim
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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
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- Titanic Business Kartal
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- Vavien Hotel
- Veni Vidi Dormi - Hostel
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- Yavuz Hotel
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- Zeugma Hotel Sultanahmet
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- ibis Istanbul West
- ibis Istanbul Zeytinburnu
- ibis Styles Istanbul Bomonti
