- 10 Karakoy Istanbul
- Abisso Hotel
- Adamar Hotel-Special Category
- Akgun Istanbul Hotel
- Albatros Hagia Sophia Hotel
- Albatros Premier Hotel
- Amiral Palace Hotel Boutique Class
- Antique Hostel
- Apartman Istanbul
- Aprilis Hotel
- Arart Hotel
- Ares Hotel
- Aston Hotel Taksim
- Avcilar Emre Hotel
- Avcilar Inci Hotel
- Barba Rossa Residence
- Bentley Hotel Bosphorus - Special Class
- Blisstanbul Hotel
- Bof Hotels Ceo Suites Atasehir
- Burgu Arjaan By Rotana
- Business Life Hotel
- Byotell Hotel Istanbul
- Cevahir Hotel Istanbul Asia
- Cheers Lighthouse
- Ciragan Palace Kempinski Istanbul
- Cityloft 161
- Clarion Hotel Istanbul Mahmutbey
- Conrad Istanbul Bosphorus
- Crowne Plaza Istanbul - Harbiye
- Crowne Plaza Istanbul - Old City
- Crowne Plaza Istanbul - Oryapark
- Dedeman Bostanci Istanbul Hotel & Convention Center
- Delta Hotels By Marriott Istanbul Levent
- Deluxe Golden Horn Sultanahmet Hotel
- Divani Ali Hotel
- Dosso Dossi Hotels & Spa Downtown
- DoubleTree by Hilton Istanbul - Avcilar
- DoubleTree by Hilton Istanbul - Moda
- DoubleTree by Hilton Istanbul - Old Town
- DoubleTree by Hilton Istanbul Gayrettepe
- DoubleTree by Hilton Istanbul Topkapi
- DoubleTree by Hilton Istanbul Umraniye
- Dream Bosphorus Hotel
- Edition Old City Hotel
- Elite Hotel Dragos
- Elite World Grand Istanbul Basin Ekspres
- Elite World Grand Istanbul Kucukyali
- Elite World Istanbul Florya
- Elite World Istanbul Taksim
- Elysium Styles Taksim
- Fairmont Quasar Istanbul
- Faros Hotel Old City - Special Category
- Ferman Hotel Old City -Special Category
- Four Seasons Hotel Istanbul at the Bosphorus
- Fraser Place Antasya Istanbul
- Galley Hotel
- Gleam Bomonti Hotel
- Golden Dream Otel
- Golden Tulip Istanbul Bayrampasa
- Gorrion Hotel Istanbul
- Grand Cevahir Hotel Convention Center
- Grand Harilton Hotel
- Grand Naki Hotel
- HHK Hotel
- Hagia Sofia Mansions Istanbul, Curio Collection by Hilton
- Hampton by Hilton Istanbul Kurtkoy
- Harbour Suites Old City
- Hilton Garden Inn Istanbul Airport
- Hilton Istanbul Bakirkoy
- Hilton Istanbul Bomonti Hotel & Conference Center
- Hilton Istanbul Bosphorus
- Hilton Istanbul Kozyatagi
- Hilton Istanbul Maslak
- Holiday Inn Istanbul - Kadikoy
- Holiday Inn Istanbul City
- Hotel Golden Way Giyimkent
- Hotel Ilkay
- Hotel Morione & Spa Center
- Hotel Suadiye
- Hotel Sultanahmet
- Hotel Sultania Boutique Class
- Hotel Venera
- Hyatt Centric Levent Istanbul
- Hyatt Regency Istanbul Atakoy
- Hypnos Design Hotel
- Inera Hotel Pendik
- Inncity Hotel Nisantasi
- Innova Sultanahmet Istanbul
- Innpera Hotel
- Intercontinental Istanbul, An IHG Hotel
- Isg Sabiha Gökçen Airport Hotel
- Istanbul Golden City Hotel
- Istanbul Gonen Hotel
- Istanbul Marriott Hotel Asia
- Istanbul Marriott Hotel Pendik
- Istanbul Marriott Hotel Sisli
- Istanbul My Assos Hotel
- Istanbul Royal Hotel
- Kadikoy Park Suites
- Kuzen Otel
- Lazzoni Hotel
- Le Méridien Istanbul Etiler
- Legacy Ottoman Hotel
- Levanten Hostel
- Limak Eurasia Luxury Hotel
- Louis Appartements Galata
- Magnaura House Hotel
- Manesol Boutique Galata
- Mare Park Hotel
- Marpalace Hotel
- Mercure Istanbul Altunizade
- Mercure Istanbul Sirkeci
- Mercure Istanbul Yesilkoy
- Meroddi Pera Flats
- Miapera Hotel and Spa
- Molton Monapart Mecidiyekoy
- Mövenpick Hotel Istanbul Bosphorus
- Mövenpick Istanbul Golden Horn
- Nearport Hotel Sabiha Gokcen Airport
- Nova Plaza Crystal Hotel
- Nova Plaza Prime Hotel
- Novotel Istanbul Karakoy
- Novotel Istanbul Zeytinburnu
- Old City Viva Hotel
- Opera Hotel Bosphorus
- Orka Royal Hotel & Spa
- Palazzo Donizetti Hotel
- Palde Hotel & Spa
- Pera Rose Hotel
- Pera Tulip Hotel
- Pierre Loti
- Point Hotel Taksim
- Radisson Blu Hotel & Spa, Istanbul Tuzla
- Radisson Blu Hotel, Istanbul Asia, Turkey
- Radisson Blu Hotel, Istanbul Sisli
- Ramada Encore by Wyndham Istanbul Kartal
- Ramada Plaza by Wyndham Istanbul City Center
- Ramada by Wyndham Beylikduzu
- Ramada by Wyndham Istanbul Grand Bazaar
- Ramada by Wyndham Istanbul Old City
- Ramada by Wyndham Istanbul Pera
- Ravouna 1906 Bosphorus Istanbul
- Renaissance Istanbul Polat Bosphorus Hotel
- Rixos Pera Istanbul
- Santa Sophia Hotel
- Seminal Hotel Taksim
- Seven Days Hotel
- Shangri-La Bosphorus, Istanbul
- Sheraton Grand Istanbul Atasehir
- Sheraton Istanbul Ataköy Hotel
- Sheraton Istanbul City Center
- Sheraton Istanbul Levent
- Sirkeci Emek Hotel
- Sirkeci Mansion
- Sirkeci Park Hotel
- Sirma Sultan Hotel
- Stasyon Hotel
- Sura Design Hotel & Suites
- Sura Hagia Sophia Hotel
- Surmeli Istanbul Hotel
- Swissotel The Bosphorus Istanbul
- The Artisan Istanbul MGallery
- The G Hotels Istanbul
- The Galata Istanbul Hotel - MGallery
- The Green Park Bostanci
- The Haze Karaköy
- The House Hotel Bomonti
- The Marmara Sisli
- The Marmara Suadiye Residence
- The Marmara Taksim
- The Meretto Hotel Istanbul Old City
- The Ritz-Carlton Istanbul
- The Story Hotel Pera
- Titanic Business Kartal
- Tryp By Wyndham Istanbul Sancaktepe
- Uranus Istanbul Topkapi
- Viva Deluxe Hotel
- Wabi Hostels
- Windsor Hotel & Convention Center Istanbul
- Wish More Hotel Istanbul
- Wow Istanbul Hotel
- Zurich Hotel