- 10 Karakoy Istanbul
- Ac Hotel Istanbul Macka
- Ada Hotel Istanbul
- Adahan Decamondo Pera, Autograph Collection
- Adamar Hotel - Special Class
- Ag Sisli Hotel
- Agora Life Hotel - Special Class
- Air Boss Istanbul Airport and Fair Hotel
- Akgun Istanbul Hotel
- Albatros Premier Hotel
- Aleph Hotel & Spa
- All Seasons Hotel Istanbul
- Almina Hotel - Special Class
- Alpek Hotel
- Alzer Hotel Special Class
- Amethyst Hotel
- Amiral Palace Hotel Boutique Class
- Anemon Galata Hotel
- Anthemis Hotel
- Antik Hotel Istanbul
- Antique Hostel & Guesthouse
- Antusa Palace Hotel & Spa
- Apartman Istanbul
- Apex Hotel
- Aprilis Gold Hotel
- Aprilis Hotel
- Arcade Hotel
- Arena Hotel Istanbul
- Aristocrat Hotel
- Armada Istanbul Old City Hotel
- Armagrandi Spina Hotel-Special Category
- Artefes Hotel Old City
- Arts Hotel Taksim
- Aruna Hotel
- Arven Hotel
- Askoc Hotel & Spa
- Asmali Hotel
- Aspen Hotel & Spa Istanbul Old City
- Asur Hotel
- Atik Palace Hotel
- Avantgarde Hotel Taksim
- Avantgarde Levent Hotel - Boutique Class
- Avcilar Inci Hotel
- Aybar Hotel
- Azade Hotel
- Bankerhan Hotel
- Barcelo Istanbul
- Barcelo Istanbul
- Bekdas Hotel Deluxe & Spa
- Bentley Hotel Bosphorus - Special Class
- Berjer Boutique Hotel & Spa
- Best Nobel Hotel
- Best Western Empire Palace
- Biz Cevahir Hotel Sultanahmet
- Blisstanbul Hotel
- Blue House Hotel
- Blue Istanbul Hotel
- Blue Sea Hotel
- Blueway Hotel Historical
- Bof Hotels Ceo Suites Atasehir
- Bonne Sante Hotel
- Boutique Saint Sophia
- Burckin Suites 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 Hotel & Suites- Special Category
- Cihangir Hotel
- Ciragan Palace Kempinski
- 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
- Dara Old City Hotel
- Darkhill Hotel
- Daru Sultan Hotels Galata
- Darussaade Istanbul
- 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
- Dencity Hotels & Spa
- Derpa Suite Hotel Osmanbey
- Dersaadet Hotel Istanbul
- Dilhayat Kalfa Hotel
- Divan Istanbul
- Divan Istanbul City
- Divas 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 Europe Hotel
- Elite World Grand Istanbul Kucukyali
- Elite World Istanbul Florya
- Elite World Istanbul Taksim
- Emirtimes Hotel Tuzla
- Emporium Hotel
- Enderun Hotel Istanbul
- Endless Suites Taksim
- Erboy Hotel Istanbul
- Eresin Hotels Sultanahmet - Boutique Class
- Eresin Hotels Topkapi
- Erten Konak
- Euro Park Otel
- Eurostars Hotel Old City
- Fairmont Quasar Istanbul
- Faros Hotel Old City - Special Category
- Faros Hotel Taksim
- Fatih Hotel Corner
- Fer Hotel
- Ferman Hilal Hotel
- Ferman Hotel Old City -Special Category
- Feronya Hotel
- 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
- GLK PREMIER Regency Suites & Spa
- Galata Antique Hotel
- Galley Hotel
- Garden House Hotel - Special Class
- Gen Suites
- Germir Palas Hotel - Special Class
- Gezi Hotel Bosphorus, Istanbul, a Member of Design Hotels
- Gk Regency Suites Hotel
- Glens Palas Istanbul
- Glk Premier Acropol Suites & Spa
- Golden Age Hotel Taksim
- Golden Ak Marmara Hotel
- Golden Horn Hotel - Special Class
- Golden Horn Istanbul Hotel
- Gorrion Hotel Istanbul
- Grand Anka Hotel
- Grand Bazaar Hotel
- Grand Beyazit Hotel Old City
- Grand Cevahir Hotel Convention Center
- Grand Esen Hotel
- Grand Hotel De Pera
- Grand Hotel Gulsoy
- Grand Hotel Halic
- Grand Hotel Palmiye
- Grand Hyatt Istanbul
- Grand Palace Hotel
- Grand S Hotel
- Grand Sagcanlar Hotel
- Grand Star Hotel Bosphorus
- Grand Unal Hotel
- Grand Yavuz Hotel
- Great Fortune Hotel & Spa
- Green Anka Hotel
- Gulhane Corner Hotel
- Gulhanepark Hotel & Spa
- Gunes Hotel Merter
- Gökçe Pansiyon - Adult Only - Hostel
- HHK Hotel
- Halifaks Hotel
- Hampton by Hilton Istanbul Atakoy
- Hampton by Hilton Istanbul Kayasehir
- Han Hotel
- Hilton Garden Inn Istanbul Ataturk Airport
- Hilton Garden Inn Istanbul Beylikduzu
- Hilton Istanbul Bomonti Hotel & Conference Center
- Hilton Istanbul Bosphorus
- Hilton Istanbul Kozyatagi
- Hilton Istanbul Maslak
- Hippodrome Hotel
- Holiday Inn Istanbul - Sisli
- Holiday Inn Istanbul City
- Hotel Agan
- Hotel Amira Istanbul
- Hotel Arcadia Blue Istanbul
- Hotel Black Tulip
- Hotel Bulvar Palas
- Hotel Buyuk Hamit
- Hotel California
- Hotel Centrum Istanbul
- Hotel Emirhan Palace
- Hotel Erguvan - Special Category
- Hotel Evsen
- Hotel Fehmi Bey
- Hotel Ibrahim Pasha
- Hotel Ipek Palas
- Hotel Le Mirage
- Hotel Mara Istanbul
- Hotel Momento - Special Category
- Hotel Morione & Spa Center
- Hotel Mosaic
- Hotel Nena
- Hotel Niles Istanbul
- Hotel Prinkipos
- Hotel Rose Bouquets
- Hotel Sapphire
- Hotel Silviya
- Hotel Suadiye
- Hotel Sultanahmet
- Hotel Sultanhill
- Hotel Sultania Boutique Class
- Hotel The Pera Hill
- Hotel The Public - Special Category
- Hotel Torun Istanbul Old City
- Hotel Troya
- Hotel Tulip House
- Hotel Uyan-Special Category
- Hotel V Plus Taksim
- Hotel Venera
- Hotel Yasmak Sultan
- Hotel Yigitalp Istanbul
- Hotel Zurich Istanbul
- Hotellino
- Housez Suites & Apartments Special Class
- Hurry Inn Merter Istanbul
- Hyatt Centric Levent Istanbul
- Hypnos Design House
- Ibis Istanbul Esenyurt
- Icon Istanbul Hotel
- Idylle Hotel
- Ilkbal Deluxe Hotel & Spa
- 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
- Istanbul Golden City Hotel
- Istanbul Gonen Hotel
- Istanbul Irish Hotel
- Istanbul Marriott Hotel Asia
- Istanbul Marriott Hotel Pendik
- Istanbul Marriott Hotel Sisli
- Istanbul Royal Hotel
- Istanbul Sydney Hotel
- Jakaranda Hotel
- Juliet Rooms & Kitchen
- Kadikoy Port Hotel
- Kalyon Hotel Istanbul
- Karakoy Aparts Hotel
- Kaya Apart Point
- Kent Hotel Istanbul
- Klas Hotel
- Kupeli Hotel
- Lady Diana Hotel
- Lalahan
- Laleli Blue Marmaray Hotel
- Laleli Gonen Hotel
- Lasagrada Hotel Istanbul
- Lazzoni Hotel
- Le Méridien Istanbul Etiler
- Le Safran Suite Hotel
- Legacy Ottoman Hotel
- Levanten Hostel
- Levni Hotel & Spa - Special Category
- Lina Hotel Taksim Pera
- Lion Hotel
- Lotus Hotel
- Magnificent Hotel
- Manesol Boutique Galata
- Mangana Konak Hotel
- Marble Hotel
- Marmara Place Old City Hotel
- Martinenz Hotel
- Mas Suites Nisantasi
- Mayi Hotel
- Maywood Hotel
- Mercure Istanbul Altunizade
- Metropolitan Hotels Taksim
- Mia Berre Hotels
- Midtown Hotel Istanbul
- Mien Suites
- Mina Hotel - Special Category
- Miracle Istanbul Asia Airport Hotel & Spa
- Mirrors Hotel
- Miss Istanbul Hotel & Spa
- Molton Monapart Mecidiyekoy
- Muyan Suites
- My Assos Hotel
- Mövenpick Hotel Istanbul Bosphorus
- Mövenpick Istanbul Golden Horn
- Nagehan Hotel Old City
- Naz City Hotel Taksim
- Nearport Hotel Sabiha Gokcen Airport
- Neda Hotel Istanbul
- Neorion Hotel - Special Class
- New Fatih Hotel
- Nidya Hotel Esenyurt
- Nidya Hotel Galataport
- Nippon Hotel
- Nordstern Hotel Galata
- Nova Plaza Crystal Hotel & Spa
- Novotel Istanbul Karakoy
- Novotel Istanbul Zeytinburnu
- Occidental Taksim
- Old City Viva Hotel
- Opera Hotel Bosphorus
- Oran Hotel
- Orange Airport Hotel
- Orient Express & Spa by Orka Hotels
- Orient Mintur Hotel
- Orka Royal Hotel & Spa
- Ottoman Hotel Imperial-Special Category
- Ottopera Hotel
- P Galata Hotel - Special Category
- 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 Old City
- Pera Center Hotel
- Pera Palace Hotel
- Pera Rose Hotel
- Pera Tulip Hotel
- Perapolis Hotel
- Perazre Hotel
- Peyk Hotel
- Phosphorion Hotel
- Pianoforte by Febor Hotels&Spa
- Pierre Loti Hotel Old City- Special Category
- Point Hotel Barbaros
- Point Hotel Taksim
- Premist Hotels Sultanahmet
- Prestige Hotel Old City
- Promise Hotel
- Radisson Blu Bosphorus Hotel, Istanbul
- Radisson Blu Hotel Istanbul Ottomare
- Radisson Blu Hotel Vadistanbul
- Radisson Blu Hotel, Istanbul Asia, Turkey
- Radisson Blu Hotel, Istanbul Pera
- Radisson Blu Hotel, Istanbul Sisli
- Radisson Hotel President Beyazit Istanbul
- Raffles Istanbul
- Ragip Pasha Apartments
- Ramada By Wyndham Istanbul Taksim
- Ramada Plaza by Wyndham Istanbul Atakoy
- Ramada Plaza by Wyndham Istanbul City Center
- Ramada Plaza by Wyndham Istanbul Tekstilkent
- Ramada by Wyndham Istanbul Grand Bazaar
- Ramada by Wyndham Istanbul Old City
- Rast Hotel Sultanahmet
- Renaissance Istanbul Polat Bosphorus Hotel
- Renaissance Polat Istanbul Hotel
- Renata Boutique Hotel - Boutique Class
- Reydel Hotel
- Riva Hotel Taksim
- Rixos Pera Istanbul
- Romance Istanbul Hotel
- Rox Hotel
- Royal Inci Airport Hotel
- Royal Stay Palace Hotel
- Régie Ottoman Istanbul
- Samil Hotel
- Santa Ottoman Hotel
- Santa Sophia Hotel
- Sed Hotel
- Selenay Hotel
- Seminal Hotel
- Senabil Hotel Old City
- Senator Hotel Taksim
- Seraglio Hotel & Suites
- Seres Hotel Old City
- Seven Hills Hotel - Special Class
- Shangri-La Bosphorus, Istanbul
- Sheraton Istanbul Ataköy Hotel
- Sirkeci Ersu Hotel
- Sirkeci Mansion
- Sirkeci Park Hotel
- Sirkeci Quietness Hotel
- Sogut Hotel Old City
- Soho House Istanbul
- Sokullu Pasa Hotel - Special Class
- Somerset Maslak Istanbul
- Sorriso Hotel
- Splendid Palace
- Star Holiday Hotel
- Style Hotel Sisli
- Sub Karakoy - Special Category
- Sude Konak
- Sultan Hostel & Guesthouse
- Sultan Tughra Hotel
- Sultanahmet Palace Hotel
- Sultanhan Hotel - Special Class
- Sultans Royal Hotel
- Sumengen Hotel
- Sura Design Hotel & Suites
- Sura Hagia Sophia Hotel
- Surmeli Istanbul Hotel
- Swissotel The Bosphorus Istanbul
- Taba Luxury Suites and Hotel
- Taksim Gonen Hotel
- Taksim Line Hotel
- Taksim Metropark Hotel
- Taksim Pera Orient Hotel
- Taksim Star Hotel
- Tango Arjaan by Rotana Istanbul Asia
- Taxim Hill Hotel
- Taxim Lounge Hotel Special Category
- Taximist Hotel
- Tempo Hotel 4Levent Istanbul
- Tempo Suites Airport
- The And Hotel Istanbul - Special Class
- 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 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 Taksim
- The Haze Karaköy
- The Hotel Beyaz Saray
- The Magnaura Palace Hotel
- The Marmara Pera
- The Marmara Sisli
- The Marmara Taksim
- The Meretto Hotel Istanbul Old City
- The Parma Hotel Taksim
- The Peak Hotel & Spa
- The Ritz-Carlton Istanbul
- The Row Taksim Hotel
- The Stay Bosphorus
- The Stay Boulevard Nisantasi
- The Stay Nisantasi
- The Story Hotel Pera
- The Time Hotel Old City
- Tilia Hotel
- Titanic Business Kartal
- Titanic City Taksim
- Titanic Port Bakirkoy
- Tomtom Suites
- Triada Hotel
- Tunel Residence
- Turkoman Hotel
- Turkuaz Suites Bosphorus
- Turvan Hotel
- Tuyap Palas
- Uranus Istanbul Topkapi
- Vali Konak Hotel
- Valide Sultan Konagi
- Vavien Hotel
- Vernazza Suites Hotel
- Vialand Palace Hotel
- Vicenza Hotel
- Victory Hotel & Spa Istanbul
- Villa Pera Suite Hotel
- Villa Sphendone Suites Istanbul
- Villa Zurich Hotel
- Viva Deluxe Hotel
- Vogue Hotel Supreme Istanbul
- Wabi Sabi Hostel Istanbul
- Walton Hotels Galata
- West Pera Hotel
- White House Hotel Istanbul
- White Monarch Hotel
- White Palace Hotel
- Windsor Hotel & Convention Center
- Wish More Hotel Istanbul
- World Point Hotel Istanbul
- Wow Airport Hotel
- Wow Istanbul Hotel
- Wyndham Grand Istanbul Europe
- Wyndham Grand Istanbul Levent
- Wyndham Istanbul Old City
- Zagreb Hotel
- Zimmer Bosphorus Hotel
- ibis Istanbul Zeytinburnu
