ABEL HOTEL 3* ACRA HOTEL 3* AGAN HOTEL S-class AJWA HOTEL 5* AKGUN ISTANBUL HOTEL 5* ALDEM BOUTIQUE HOTEL 3* ALFA HOTEL 3* ALMINA HOTEL S-class ALZER HOTEL S-class AMBER HOTEL 4* AMETHYST HOTEL 4* ANTEA PALACE HOTEL 4* ANTHEMIS HOTEL 3* ANTIK HOTEL 4* APRILIS GOLD HOTEL 4* APRILIS HOTEL 4* ARMAGRANDI SPINA HOTEL S-class ASKOC HOTEL 4* ASUR HOTEL Boutique AVANTGARDE HOTEL LEVENT 5* AVANTGARDE HOTEL TAKSIM 4* AVANTGARDE HOTEL TAKSIM SQUARE Boutique AYASULTAN BOUTIQUE HOTEL 3*+ BARCELO ISTANBUL HOTEL 5* BAZAAR HOTEL 3* BEETHOVEN HOTEL ISTANBUL S-class BEETHOVEN PREMIUM HOTEL 3* BEETHOVEN SUIT HOTEL 3* BERR HOTEL ISTANBUL 4* BEST WESTERN CITADEL HOTEL Boutique BEST WESTERN EMPIRE PALACE HOTEL 4* BEST WESTERN THE PRESIDENT HOTEL 4* BEYAZ SARAY HOTEL 4* BILINC HOTEL 3* BISETUN HOTEL S-class BLUE MARMARAY HOTEL Boutique BRICKS HOTEL 5* BUDO HOTEL 3*+ BUYUK PARIS HOTEL 3* CARLTON HOTEL 4* CELAL SULTAN HOTEL Boutique CENTRUM HOTEL S-class CIRAGAN PALACE KEMPINSKI 5* CLARION HOTEL ISTANBUL MAHMUTBEY 5* CROWNE PLAZA HARBIYE 5* DARA HOTEL BOUTIQUE Boutique DARK HILL HOTEL 4* DEDEMAN HOTEL ISTANBUL 5* DELUXE GOLDEN HORN SULTANAHMET HOTEL 4* DENIZ HOUSES HOTEL 3* DIVAN ISTANBUL ASIA HOTEL 5* DIVAN ISTANBUL CITY 4* DIVAN ISTANBUL HOTEL 5* DIVAN SUITES ISTANBUL G-PLUS 5* DOSSO DOSSI HOTEL DOWNTOWN 5* DOSSO DOSSI HOTEL OLD CITY 4* DOUBLE TREE BY HILTON ISTANBUL TOPKAPI 5* EDIBE SULTAN HOTEL 3* ELITE WORLD BUSINESS HOTEL 5* Elite World Europe Hotel 5* ELITE WORLD PRESTIGE HOTEL 4*+ EMIN HOTEL 3* ERESIN HOTEL TAXIM 5* ERESIN HOTEL TAXIM PREMIER 5* ERESIN HOTEL TOPKAPI 5* ERESIN HOTELS SULTANAHMET 5* ETERNITY BOUTIQUE HOTEL 3* EUROSTARS OLD CITY HOTEL 4* FAIRMONT QUASAR ISTANBUL 5* FAROS HOTEL OLD CITY 4* FER HOTEL SULTANAHMET 5* FERMAN HILAL HOTEL S-class FERMAN HOTEL OLD CITY S-class FERMAN KONAK HOTEL S-class FERMAN PERA HOTEL BEYOGLU 4* FIMKA HOTEL S-class FORS HOTEL 3* FOUR SEASONS BOSPHORUS 5* Fraser Place Antasya Istanbul 5* GENOVA HOTEL 4* GLAMOUR HOTEL 4* GOLD HOTEL 3* GOLDEN CROWN HOTEL 3* GOLDEN HORN ISTANBUL HOTEL Boutique GOLDEN HORN SIRKECI HOTEL 4* GONEN LALELI HOTEL 3* GRAND ASIYAN HOTEL 4* GRAND CEVAHIR HOTEL & CONVENTION CENTER 5* GRAND DURMAZ HOTEL 4* GRAND EMIN HOTEL 3* GRAND HILARIUM HOTEL 4* GRAND LIZA HOTEL 3* GRAND MILAN HOTEL 3* GRAND ONS HOTEL 3* GRAND PAMIR HOTEL 3* GRAND SAGCANLAR HOTEL TOPKAPI 3* GRAND WASHINGTON HOTEL 3* GRAND YAVUZ HOTEL 4* HALI HOTEL 3* HAMIDIYE HOTEL 4* HILTON ISTANBUL MASLAK 5* HISTORIA HOTEL S-class HOLIDAY IN ISTANBUL OLD CITY HOTEL 4* HOLIDAY INN ISTANBUL CITY 5* HURRY INN MERTER HOTEL 5* IBIS ISTANBUL AIRPORT HOTEL 3* ILKAY HOTEL Boutique INNOVA HOTEL SULTANAHMET 4* ISTANBUL CENTRAL HOTEL 3* ISTANBUL GONEN HOTEL 5* KALYON HOTEL 4* KAYA MADRID HOTEL 3* KENT HOTEL 4* KUPELI PALACE HOTEL 3* LADY DIANA HOTEL 4* LALAHAN HOTEL 4* LAUSOS PALACE HOTEL 5* LEGACY OTTOMAN HOTEL 5* LEVNI HOTEL 3* LIBERTY HOTEL Boutique LIONEL HOTEL 4* MALKOC HOTEL 3* MARAL HOTEL 3* MARMARA PLACE HOTEL 4* MARMARAY HOTEL (YENIKAPI) 4* MAY HOTEL ISTANBUL 3* MAYA HOTEL 3* MERCURE ISTANBUL CITY BOSPHORUS HOTEL 5* MIRILAYON HOTEL 4* MOMENTO HOTEL 4* MOMENTO HOTEL GOLDEN HORN 4* MOVENPICK HOTEL ISTANBUL 5* NANDA HOTEL 4* NAUMPASA BOUTIQUE HOTEL Boutique NOVEL HOTEL ISTANBUL 3* NOWY EFENDY HOTEL 4* OLIMPIYAT BOUTIQUE HOTEL Boutique ORIENT EXPRESS HOTEL 4* ORKA ROYAL HOTEL 4* PARK DEDEMAN LEVENT 4* PERA PALACE HOTEL 5* PIERRE LOTI HOTEL 4* PRESTIGE HOTEL 4* RADISSON BLU CONFERENCE AND AIRPORT HOTEL 5* RADISSON BLU HOTEL ISTANBUL ATAKOY 5* RADISSON BLU HOTEL SISLI 5* RECITAL HOTEL 4* REGIE OTTOMAN ISTANBUL HOTEL S-class RIXOS PERA 5* SAHINLER HOTEL Boutique SANTA SOPHIA HOTEL 3* SERIFE SIRIN HANIM KONAGI Boutique SEVCAN AIRPORT HOTEL 4* SILENCE ISTANBUL HOTEL & CONVENTION CENTER 5* SIRKECI MANSION BOUTIQUE HOTEL Boutique SKY KAMER BOUTIQUE HOTEL 4* SORRISO HOTEL 4* SULTAN'S INN HOTEL 3* SULTAN HOUSE Boutique SULTANHAN HOTEL 4* SULTANIA HOTEL Boutique SURA DESIGN HOTEL & SUITES Boutique SURA HAGIA SOPHIA HOTEL 5* SUREYYA HOTEL 3* SWISSOTEL THE BOSPHORUS 5* TASHKONAK HOTEL S-class THE AND HOTEL Boutique THE BYZANTIUM HOTEL & SUITE ISTANBUL 4* THE CENTER HOTEL 3* THE CITY HOTEL 4* THE GREEN PARK HOTEL 4* THE MERETTO HOTEL ISTANBUL OLD CITY 4* THE MERETTO HOTEL LALELI 4* THE TIME HOTEL 4* TILIA HOTEL 4* TITANIC BUSINESS GOLDEN HORN 5* TITANIC BUSINESS KARTAL 5* TITANIC CITY HOTEL 4* TITANIC DOWNTOWN BEYOGLU 5* TITANIC PORT HOTEL 5* TREND HOTEL 4* VENERA HOTEL 4* VERSION HOTEL 3* VICENZA HOTEL 4* YASMAK SULTAN HOTEL 4* YIGITALP HOTEL 4* YUSUFPASA KONAGI HOTEL Boutique ZAGREB HOTEL 4* ZURICH HOTEL 4*