5 Star Istanbul Hotels 
Akgun Hotel Istanbul - Barcelo Eresin Topkapi Hotel - Buyuk Surmeli Hotel Istanbul - Ceylan Inter Continental Hotel
 Ciragan Palace Kempinski Hotel - Conrad Hotel Istanbul - Crown Plaza Hotel Istanbul - Dedeman Hotel Istanbul - Divan Hotel Istanbul -  Hyatt Regency Hotel Istanbul - Hilton Hotel Istanbul - Grand Cevahir Hotel - Green Park Merter Hotel - Green Park Bostanci Hotel - Kaya Ramada Hotel Istanbul - Princess Ortakoy Hotel - Princess Maslak Hotel - Marin Princess Hotel  - Polat Renaissance Hotel Istanbul - Radisson SAS Hotel Istanbul - The Marmara Hotel The Ritz Carlton Hotel Istanbul - Swissotel Istanbul
4 Star Istanbul Hotels
Accura Hotel Istanbul -  Adela Hotel Istanbul - Arcadia Hotel Istanbul - Armada Hotel Istanbul - Aygun Plaza Hotel Istanbul - Cara Hotel - Crystal Hotel Istanbul - Elite Hotel Istanbul - Euro Plaza Hotel Istanbul - Golden Age 1 Hotel Grand Halic Hotel Istanbul - Grand Medya Hotel Istanbul - Grand Star Hotel Istanbul - Grand Oztanik Hotel Istanbul - Grand Gulsoy Hotel Istanbul - Golden Horn Hotel Istanbul - Hilton Parksa - Holiday Inn City Hotel Istanbul
 Holiday Inn Marina Hotel Istanbul - Feronya Hotel Istanbul - Keban Hotel Istanbul - Kent Hotel - Lamartin Hotel Lares Park Hotel Istanbul - Lion Hotel Istanbul - Marble Hotel Istanbul - Nippon Hotel Istanbul - Ozmen Hotel - Prince Hotel Istanbul - Point Hotel Istanbul - Piano Forte Hotel Istanbul - Richmond Hotel Istanbul
Seminal Hotel Istanbul - Senator Hotel Istanbul - Yasmak Sultan Hotel Istanbul - Yigitalp Hotel Istanbul - Taksim Gonen Hotel Istanbul Taksim Select Hotel Istanbul - The Madison Hotel Istanbul - The Marmara Pera Hotel Istanbul Zurich Hotel Istanbul
 3 Star Istanbul Hotels
Antea Hotel Istanbul - Birbey Hotel Istanbul - Ferhat Hotel Istanbul - Grand Yavuz Hotel Istanbul - Golden Age 2 Hotel Istanbul - Kordon Hotel Istanbul - Santa Sophia Hotel Istanbul - Sogut Hotel Istanbul - Sunlight Hotel Istanbul
 Boutique Istanbul Hotels ( Old City Hotels )
Alzer Hotel Istanbul - Amisos Hotel Istanbul - Avicenna Hotel Istanbul - Best Western Acropol Hotel Istanbul
Best Western Amber Hotel Istanbul - Best Western Sokullu Pasa Hotel Istanbul - Blue House Hotel Istanbul - Dersaadet Hotel Istanbul Erguvan Hotel Istanbul - Fehmibey Hotel Istanbul - Nena Hotel Istanbul - Petrol Hotel Istanbul - Spina Hotel Istanbul -  Sidera Palace Hotel Sultanahmet Palace Hotel Istanbul - Yesilev Hotel Istanbul - Valide Sultan Konagi Hotel Istanbul - Uyan Hotel Istanbul