A PLUS RESIDENCE Apart ACRA HOTEL 4* AKGUN ISTANBUL HOTEL 5* ALBATROS HAGIA SOPHIA HOTEL 4* ALDEM HOTEL 4* ALMINA HOTEL 4* ALZER HOTEL 4* ANTUSA DESIGN HOTEL&SPA 4* ANTUSA PALACE HOTEL 4* APRILIS HOTEL 4* ARDEN CITY HOTEL 4* ARMAGRANDI SPINA HOTEL 4* ART CITY HOTEL 3* ARTEFES HOTEL 3* ARUNA HOTEL ISTANBUL 4* ASIA CITY HOTEL ATASEHIR 4* ASITANE LIFE HOTEL 3* ASPEN HOTEL ISTANBUL 3* ASUR HOTEL 3* ATLANTIS ROYAL HOTEL 3* AVICENNA HOTEL 4* BEETHOVEN ISTANBUL 4* BEETHOVEN PREMIUM HOTEL 4* BEKDAS HOTEL DELUXE & SPA 4* BERCE HOTEL 3* BEST WESTERN ANTEA PALACE HOTEL & SPA 4* BEST WESTERN HOTEL EMPIRE PALACE 4* BEYAZIT PALACE 4* BIRBEY HOTEL 3* BLACK TULIP HOTEL 4* BLUE ISTANBUL HOTEL 3* BOUTIQE ST. SOPHIA ISTANBUL BOUTIQUE BULVAR PALAS HOTEL 4* BYOTELL HOTEL ISTANBUL & SPA 5* CELAL AGA KONAGI 5* CELAL SULTAN HOTEL 4* CIHANGIR PALACE 4* COMFORT LIFE HOTEL 4* CONSTANTINOPOLIS HOTEL 3* CROWN PLAZA ISTANBUL HARBIYE 5* DE MAREE HOTEL 3* DELTA HOTEL ISTANBUL 3* DELUXE GOLDEN HORN HOTEL 4* DELUXE NEWPORT HOTEL 3* DEMPA HOTEL 3* DIVA'S HOTEL 4* DIVAN ISTANBUL 5* DIVAN ISTANBUL ASIA 5* DOSSO DOSSI HOTELS OLD CITY SULTANAHMET 4* DOSSO DOSSI HOTELS&SPA DOWNTOWN 5* DOUBLE TREE BY HILTON ISTANBUL TOPKAPI 4* DUNDAR HOTEL SPA (EX.BILINC HOTEL) 3* EDIBE SULTAN HOTEL 3* ELITE WORLD ISTANBUL HOTEL 5* ELITE WORLD PRESTIGE HOTEL 4* ERESIN HOTELS SULTANAHMET 4* ERESIN HOTELS TAXIM&PREMIER 4* ERESIN HOTELS TOPKAPI 5* FAROS HOTEL OLD CITY 4* FER HOTEL 4* GALLEY HOTEL 3* GEDIK PASA KONAGI 3* GOLDEN AGE ISTANBUL 4* GOLDEN HORN ISTANBUL 3* GOLDEN HORN ISTANBUL SIRKECI 4* GOLDEN SAND HOTEL 4* GORRION HOTEL ISTANBUL 5* GRAND BEYAZIT HOTEL 5* GRAND HOTEL HALIC ISTANBUL 4* GRAND LIZA HOTEL 3* GRAND MARK HOTEL 3* GRAND PAMIR HOTEL 3* GRAND WASHINGTON HOTEL 4* GREAT FORTUNE DESIGN HOTEL 4+ HALI HOTEL 3* HARBIYE RESIDENCE ISTANBUL 3* HOTEL DENIZ HOUSES BOUTIQUE HOTEL MOMENTO BEYAZIT 4* HOTEL SULTAN’S INN BOUTIQUE HOTEL VENERA 4* HOTEL ZURICH ISTANBUL 4* INTERSTAR HOTEL BOUTIQUE ISHAKPASA KONAGI 4* ISTANBUL HOLIDAY HOTEL 3* JW MARRIOTT ISTANBUL BOSPHORUS 5* KAFTAN HOTEL 3* KAYA MADRID HOTEL 3* KECIK HOTEL 3* KUPELI PALACE HOTEL 3* LADY DIANA HOTEL 4* LEVNI HOTEL 4* MAGNIFICENT HOTEL 3* MAY HOTEL ISTANBUL 3* MEGARON HOTEL BOUTIQUE MIKLAGORD HOTEL BOUTIQUE NAUMPASA KONAGI 3* NOWY EFENDI HOTEL 4* OLIMPIYAT HOTEL 3* ORKA ROYAL HOTEL 4* PALDE HOTEL&SPA 4* PERA PALACE HOTEL 5* RAMADA BY WYNDHAM ISTANBUL OLD CITY 4* RECITAL HOTEL 4* ROMANCE ISTANBUL HOTEL 4* SANTA SOPHIA HOTEL 3* SEVENDAYS HOTEL 3* SKALION HOTEL & SPA 4* SOGUT HOTEL OLD CITY ISTANBUL 3* SULTAN HOUSE ISTANBUL BOUTIQUE SULTANAHMET CESME HOTEL 3* SULTANAHMET PREMIST HOTEL 4* SULTANIA HOTEL ISTANBUL 4* SUN COMFORT HOTEL 3* SUR ISTANBUL HOTEL 3* TAYHAN HOTEL 3* THE BYZANTIUM HOTEL ISTANBUL 4* THE LAILA HOTEL BOUTIQUE THE LOLA HOTEL BOUTIQUE THE PEAK HOTEL & SPA 4* THE ZANADU ISTANBUL HOTEL BOUTIQUE THEODIAN HOTEL 3* TURVAN HOTEL ISTANBUL 3* VIVA HOTEL 3* VOGUE HOTEL SUPREME ISTANBUL 5* WEINGART HOTEL 4* YASMAK SULTAN HOTEL 4* YUSUFPASA KONAGI 3*