- 10 Karakoy Istanbul
- Abisso hotel
- Ac Hotel Istanbul Macka
- Ada Hotel Istanbul
- Ada Palas Buyukada
- Adamar Hotel - Special Class
- Adelmar Hotel Istanbul
- Agora Guesthouse
- Agora Life Hotel - Special Class
- Air Boss Istanbul Airport and Fair Hotel
- Ajwa Hotel Sultanahmet
- Akgun Istanbul Hotel
- Akin Suites
- Akka Lush Hotel Taksim
- Albatros Premier Hotel
- All Seasons Hotel Istanbul
- Alpek Hotel
- Alrazi Hotel
- Alzer Hotel Special Class
- Amber Hotel & Spa
- Amethyst Hotel
- Ansen Hotel and Suites
- Antea Palace Hotel & Spa
- Anthemis Hotel
- Antik Hotel Istanbul
- Antique Hostel & Guesthouse
- Antis Hotel-Special Category
- Antusa Palace Hotel & Spa
- Aprilis Hotel
- Arcade Hotel
- Arena Hotel Istanbul
- Arkem Hotel 1
- Arkem Hotel 2
- Armada Istanbul Old City Hotel
- Art Nouveau Pera
- Artefes Hotel Old City
- Artist Rooms Suites
- Arts Hotel Istanbul - Special Class
- Arts Hotel Taksim
- Aruna Hotel
- Askoc Hotel & Spa
- Asmali Hotel
- Aspen Hotel & Spa Istanbul Old City
- Astan Hotel Taksim
- Asur Hotel
- Asya World Hotel
- Atik Palace Hotel
- Avantgarde Hotel Taksim
- Avantgarde Levent Hotel - Boutique Class
- Aybar Hotel
- Ayramin Hotel Taksim
- Barcelo Istanbul
- Basileus Hotel
- Be Mate Casa Di Bava
- Beethoven Premium Hotel
- Bekdas Hotel Deluxe & Spa
- Bella Vista Hostel
- Belle Maison Hotel&Residence
- Bentley Hotel Bosphorus - Special Class
- Berjer Boutique Hotel & Spa
- Best Nobel Hotel 2
- Best Town Hotel
- Best Western Empire Palace
- Birlik Apart Hotel
- Biz Cevahir Hotel Sultanahmet
- Blisstanbul Hotel
- Blue House Hotel
- Bof Hotels Ceo Suites Atasehir
- Bonne Sante Hotel
- Boutique Saint Sophia
- Bucoleon by Cheers
- Buke Hotel
- Burckin Suites Hotel
- Burgu Arjaan By Rotana
- Business Life Boutique Hotel & Spa
- Buyukada Comfort
- Byotell Hotel Istanbul
- CVK Park Bosphorus Hotel Istanbul
- CVK Taksim Hotel Istanbul
- Carlton Hotel
- Cartoon Hotel
- Celal Sultan Hotel Special Class
- Centro WestSide
- Cevahir Hotel Istanbul Asia
- Cheers Hostel
- Cihangir Hotel
- Ciragan Palace Kempinski
- City Center Hotel Taksim
- Cityloft 161
- Cityloft 24
- Cityloft 81
- Clarion Hotel Golden Horn
- Clarion Hotel Istanbul Mahmutbey
- Collage Pera Hotel
- Concept Nisantasi Hotels & Spa
- Conrad Istanbul Bosphorus
- Corinne Art & Boutique Hotel
- Corner Hot
- Crowne Plaza Istanbul - Asia
- Crowne Plaza Istanbul - Florya
- Crowne Plaza Istanbul - Harbiye
- Crowne Plaza Istanbul - Old City
- Crowne Plaza Istanbul - Oryapark
- Darkhill Hotel
- Daru Sultan Hotels Galata
- Dedeman Bostanci Istanbul Hotel & Convention Center
- Dedeman Istanbul
- Delta Hotel Istanbul
- Delta Hotels By Marriott Istanbul Levent
- Deluxe Golden Horn Sultanahmet Hotel
- Derpa Suite Hotel Osmanbey
- Dilhayat Kalfa Hotel
- Divan Istanbul City
- Divani Ali Hotel
- 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 Esentepe
- DoubleTree by Hilton Istanbul Topkapi
- DoubleTree by Hilton Istanbul Umraniye
- Edibe Sultan Hotel
- Edition Old City Hotel
- Ekinci Residence
- Elemet Taksim Suites
- Elite World Comfy Istanbul Taksim
- Elite World Europe Hotel
- Elite World Istanbul Florya
- Elite World Istanbul Taksim
- Elysium Styles Taksim
- Emerald Hotel
- Emirtimes Hotel Tuzla
- Empire Suite Hotel
- Emporium Hotel
- Enderun Hotel Istanbul
- Endless Suites Taksim
- Eresin Hotels Sultanahmet - Boutique Class
- Eresin Hotels Topkapi
- Erten Konak
- Eterno Hotel
- Euro Park Otel
- Eurostars Hotel Old City
- Fairmont Quasar Istanbul
- Faros Hotel Old City - Special Category
- Faros Hotel Taksim
- Fer Hotel
- Ferman Hotel Old City -Special Category
- Feronya Hotel
- Fitas Oda Beyoglu
- Four Seasons Hotel Istanbul at Sultanahmet
- Four Seasons Hotel Istanbul at the Bosphorus
- Fraser Place Antasya Istanbul
- Fraser Place Anthill Istanbul
- Fuar Hotel
- Fuat Pasa Yalisi - Special Category Bosphorus
- Germir Palas Hotel - Special Class
- Gezi Hotel Bosphorus, Istanbul, a Member of Design Hotels
- Gk Regency Suites Hotel
- Glamour Hotel Istanbul Sirkeci
- Glk Premier The Home Suites & Spa
- Golden Age Hotel Taksim
- Golden Ak Marmara Hotel
- Golden Dream Otel
- Golden Horn Hotel - Special Class
- Golden Horn Istanbul Hotel
- Golden Royal Hotel & Spa
- Golden Tulip Istanbul Bayrampasa
- Gorrion Hotel Istanbul
- Grand Anka Hotel
- Grand Ant Hotel
- Grand Aras Hotel & Suites
- Grand Beyazit Hotel Old City
- Grand Cevahir Hotel Convention Center
- Grand Hilarium Hotel
- Grand Hotel De Pera
- Grand Hotel Gulsoy
- Grand Hotel Halic
- Grand Hotel Palmiye
- Grand Hyatt Istanbul
- Grand Istanbul Airport Hotel
- Grand Makel Hotel Topkapi
- Grand S Hotel
- Grand Sagcanlar Hotel
- Grand Star Hotel Bosphorus
- Grand Unal Hotel
- Grand Yavuz Hotel
- Great Fortune Hotel & Spa
- Gunes Hotel Merter
- HHK Hotel
- Hagia Sofia Mansions Istanbul, Curio Collection by Hilton
- Hali Hotel
- Hampton by Hilton Istanbul Atakoy
- Hampton by Hilton Istanbul Kayasehir
- Hampton by Hilton Istanbul Kurtkoy
- Hampton by Hilton Istanbul Zeytinburnu
- Harmony Hotel Merter & Spa
- Hera Montagna Hotel
- Hilton Garden Inn Istanbul Ataturk Airport
- Hilton Istanbul Bomonti Hotel & Conference Center
- Hilton Istanbul Bosphorus
- Hilton Istanbul Kozyatagi
- Hilton Istanbul Maslak
- Holiday Inn Express Istanbul - Altunizade
- Holiday Inn Istanbul - Kadikoy
- Holiday Inn Istanbul - Old City
- Holiday Inn Istanbul - Sisli
- Holiday Inn Istanbul City
- Hotel Agan
- Hotel Amira Istanbul
- Hotel Arcadia Blue Istanbul
- Hotel Bazaar
- Hotel Black Tulip
- Hotel Bossuite Kadikoy
- Hotel California
- Hotel Emirhan Palace
- Hotel Eyfel
- Hotel Favori
- Hotel Fehmi Bey
- Hotel Gritti Pera
- Hotel Ibrahim Pasha
- Hotel Ilkay
- Hotel Inter Istanbul
- Hotel Le Mirage
- Hotel Linda
- Hotel Momento - Special Category
- Hotel Monopol
- Hotel Next2
- Hotel Niles Istanbul
- Hotel Sapphire
- Hotel Suadiye
- Hotel Sultanahmet
- Hotel Sultanhill
- Hotel Sultania Boutique Class
- Hotel The Pera Hill
- Hotel The Public - Special Category
- Hotel Topkapi
- Hotel Troya
- Hotel Uyan-Special Category
- Hotel Venera
- Hotel Yasmak Sultan
- Hotel Yigitalp Istanbul
- Hotel Zurich Istanbul
- Hotellino
- Hurry Inn Merter Istanbul
- Hyatt Centric Levent Istanbul
- Hyatt Regency Istanbul Atakoy
- Ibis Istanbul Esenyurt
- Ilkbal Deluxe Hotel & Spa
- Innova Sultanahmet Istanbul
- Innpera Hotel
- Inntel Hotel Istanbul
- Intercontinental Istanbul, An IHG Hotel
- Isg Sabiha Gökçen Airport Hotel
- Island Hotel
- Istanbul Comfort Hotel
- Istanbul Dedem Hotel 1
- Istanbul Dora Hotel
- Istanbul Golden City Hotel
- Istanbul Gonen Hotel
- Istanbul Marriott Hotel Asia
- Istanbul Marriott Hotel Pendik
- Istanbul Marriott Hotel Sisli
- Istanbul Royal Hotel
- Istanbul Sirkeci Hotel
- Kalyon Hotel Istanbul
- Kent Hotel Istanbul
- Klas Hotel
- La Pazza Suites
- Lady Diana Hotel
- Lalahan
- Laleli Blue Marmaray Hotel
- Laleli Gonen Hotel
- Lalinn Hotel
- Land Park Hotel
- Lasagrada Hotel Istanbul
- Lazzoni Hotel
- Le Méridien Istanbul Etiler
- Legacy Ottoman Hotel
- Levni Hotel & Spa - Special Category
- Leyenda Hotel
- Limak Eurasia Luxury Hotel
- Lina Hotel Taksim Pera
- Lion Hotel
- Lionel Hotel Istanbul
- Luce Di Pera
- Luce Suites Taksim
- Mac Hotel Vazo Kule
- Manesol Boutique Galata
- Manesol Old City Bosphorus
- Marble Hotel
- Marmara Place Old City Hotel
- Marmaray Hotel
- Martinenz Hotel
- Maywood Hotel
- Mb Deluxe Hotel
- Medproper Suites
- Mercure Istanbul Bakirkoy
- Mercure Istanbul Bomonti
- Mercure Istanbul Sirkeci
- Mercure Istanbul Umraniye
- Meroddi Bagdatliyan Hotel
- Metropolitan Hotels Bosphorus
- Mevlana Hotel
- Mia Berre Hotels
- Midtown Hotel Istanbul
- Mina Hotel - Special Category
- Mint Residence Taksim
- Miracle Istanbul Asia Airport Hotel & Spa
- Mirrors Hotel
- Miss Istanbul Hotel & Spa
- Molton Beyoglu Mls Hotel
- Molton Monapart Mecidiyekoy
- Momento Golden Horn Hotel
- Monarch Hotel
- Mr. Bird Hotel
- Mukarnas Taksim Hotel
- My Assos Hotel
- Mövenpick Hotel Istanbul Bosphorus
- Mövenpick Istanbul Golden Horn
- Nagehan Hotel Old City
- Naz City Hotel Taksim
- Neorion Hotel - Special Class
- Nevv Bosphorus Hotel & Suites
- Nexthouse Pera Hotel
- Nidya Hotel Esenyurt
- Nidya Hotel Galataport
- Nippon Hotel
- Nova Plaza Crystal Hotel & Spa
- Nova Plaza Park Hotel
- Nova Plaza Prime Hotel
- Nova Plaza Taksim Square
- Novotel Istanbul Karakoy
- Novotel Istanbul Zeytinburnu
- Nowy Efendi Hotel - Special Category
- Nuru Ziya Suites
- Oban Suites Istanbul
- Occidental Taksim
- Old City Viva Hotel
- Old Port Hotel
- Opera Hotel Bosphorus
- Oran Hotel
- Oriella Hotel
- Orient Express & Spa by Orka Hotels
- Orka Royal Hotel & Spa
- Orka Taksim Suites & Hotel
- Ottoman Hotel Imperial-Special Category
- Ottopera Hotel
- P Galata Hotel - Special Category
- Palace Point Hotel
- Palazzo Donizetti Hotel - Special Class
- Park By Clover
- Park Hyatt Istanbul - Macka Palas
- Park Inn By Radisson Istanbul Atasehir
- Park Inn by Radisson Istanbul Airport, Odayeri
- Park Star Hotel Taksim
- Pera Center Hotel
- Pera Luna Residence
- Pera Palace Hotel
- Pera Rose Hotel
- Pera Tulip Hotel
- Peyk Hotel
- Pianoforte by Febor Hotels&Spa
- Pierre Loti Hotel Old City- Special Category
- Piya Sport Hotel
- Point Hotel Barbaros
- Point Hotel Taksim
- Port Bosphorus Hotel
- Premist Hotels Taksim
- Prestige Hotel Old City
- Promise Hotel
- Puffin Hostel
- 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 Hotel Istanbul Sultanahmet
- Raffles Istanbul
- 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 Golden Horn
- Ramada by Wyndham Istanbul Grand Bazaar
- Ramada by Wyndham Istanbul Old City
- Rast Hotel Sultanahmet
- Raymond Hotel
- Regard Hotel
- Renaissance Istanbul Polat Bosphorus Hotel
- Renaissance Polat Istanbul Hotel
- Retaj Royale Istanbul
- Rhiss Hotel Bostanci
- Rhiss Hotels Maltepe
- Riva Hotel Taksim
- Rixos Pera Istanbul
- Romance Istanbul Hotel
- Room Mate Emir
- Rox Hotel
- Royal Inci Airport Hotel
- Régie Ottoman Istanbul
- Samil Hotel
- Santa Sophia Hotel
- Sarnic Hotel & Sarnic Premier Hotel - Ottoman Mansion
- Sed Hotel
- Seher Hotel
- Sehir Hotel Old City
- Seminal Hotel
- Senabil Hotel Old City
- Senator Hotel Taksim
- Sentire Hotels & Residences
- Seres Hotel Old City
- Seven Hills Hotel - Special Class
- Shangri-La Bosphorus, Istanbul
- Sheraton Grand Istanbul Atasehir
- Sheraton Istanbul Ataköy Hotel
- Sheraton Istanbul City Center
- Sheraton Istanbul Levent
- Sinem Hotel
- Sirkeci Emek Hotel
- Sirkeci Ersu Hotel
- Sirkeci Mansion
- Skalion Hotel & Spa
- Sogut Hotel Old City
- Soho House Istanbul
- Sokullu Pasa Hotel - Special Class
- Somerset Maslak Istanbul
- Sorriso Hotel
- Splendid Palace
- Star Holiday Hotel
- Stay Inn Taksim Hostel
- Style Hotel Sisli
- Sultan Hostel & Guesthouse
- Sultan House
- Sultan Tughra Hotel
- Sultanahmet Palace Hotel
- Sultanhan Hotel - Special Class
- Sumahan on the Water - Special Class
- Sun Comfort Hotel
- Sur Hotel Sultanahmet
- Sura Design Hotel & Suites
- Sura Hagia Sophia Hotel
- Surmeli Istanbul Hotel
- Swissotel The Bosphorus Istanbul
- TRYP by Wyndham Istanbul Taksim
- Taba Luxury Suites and Hotel
- Taksim Gonen Hotel
- Taksim Green House Hostel
- Taksim Line Hotel
- Taksim Metropark Hotel
- Taksim Mood
- Taksim Nis Hotel
- Taksim Pera Orient Hotel
- Taksim Premium Hotel
- Taksim Square Hotel
- Taksim Star Hotel
- Taksim Tulip Residence & Hotel
- Tango Arjaan by Rotana Istanbul Asia
- Taxim Express
- Taxim Hill Hotel
- Taxim Lounge Hotel Special Category
- Taxim Suites Residences Istanbul
- Taxim Trend Suites
- Taximist Hotel
- Taximtown Hotel
- Tempo Hotel 4Levent Istanbul
- Tempo Suites Airport
- The Artisan Istanbul MGallery
- The Bank Hotel Istanbul, a Member of Design Hotels
- The Byzantium Suites Hotel & Spa
- The Central Hotel
- The Central Palace Taksim
- The Craton Hotel
- The Elysium Taksim Special Class
- The G Hotels Istanbul
- The Grand Mira Business Hotel
- The Grand Tarabya
- The Green Park Bostanci
- The Green Park Merter
- The Green Park Pendik
- The Green Park Taksim
- The Hotel Beyaz Saray
- The House Hotel Bomonti
- The Magnaura Palace Hotel
- The Marist Hotel Kadikoy
- The Marmara Pera
- The Marmara Sisli
- The Marmara Taksim
- The Meretto Hotel Istanbul Old City
- The Meretto Hotel Laleli
- The Milltown Sisli
- The Parma Hotel Downtown
- The Parma Hotel Taksim
- The Peak Hotel & Spa
- The Ritz-Carlton Istanbul
- The St. Regis Istanbul
- The Stay Bosphorus
- The Stay Boulevard Nisantasi
- The Stay Nisantasi
- The Tango Hotel Istanbul
- The Time Hotel Old City
- The White Orient Hotel
- Tilia Hotel
- Titanic Business Kartal
- Titanic City Taksim
- Titanic Port Bakirkoy
- Tomtom Suites
- Triada Hotel
- Tryp By Wyndham Istanbul Sancaktepe
- Turkuaz Suites Bosphorus
- Turvan Hotel
- Tuyap Palas
- Tzl Suites
- Uranus Istanbul Topkapi
- Valide Hotel
- Vavien Hotel
- Venue Hotel Istanbul Old City
- Vialand Palace Hotel
- Vicenza Hotel
- Victory Hotel & Spa Istanbul
- Villa Zurich Hotel
- Viva Deluxe Hotel
- Vogue Hotel Supreme Istanbul
- Wabi Sabi Hostel Istanbul
- West Pera Hotel
- WestSide Residences by Rotana
- White House Hotel Istanbul
- White Monarch Hotel
- Wide Suites Taksim
- Windsor Hotel & Convention Center
- Wish More Hotel Istanbul
- Witt Istanbul Suites
- Wow Airport Hotel
- Wow Istanbul Hotel
- Wyndham Grand Istanbul Europe
- Wyndham Grand Istanbul Kalamis Marina Hotel
- Wyndham Grand Istanbul Levent
- Wyndham Istanbul Old City
- Yasmak Comfort Hotel
- Zagreb Hotel
- Zendy Suite Hotel
- Zimmer Bosphorus Hotel
- ibis Istanbul Zeytinburnu
- ibis Styles Istanbul Bomonti