ACACIA MANSION HOTEL 3* ACRA HOTEL 4* AGAN HOTEL SIRKECI 3* AKGUN ISTANBUL 5* AKKA LUSH HOTEL 4* AKKA SUITES 3* ALBATROS HAGIA SOPHIA HOTEL 4* ALDEM BOUTIQUE HOTEL 3* ALL SEASONS HOTEL 4* ALMINA HOTEL 4* ALPEK HOTEL 4* ALTUN LIFE HOTEL 2* ALZER HOTEL 3* AMBER HOTEL 4* ANTIS HOTEL 4* ANTUSA DESIGN HOTEL & SPA 4* ANTUSA PALACE HOTEL & SPA 4* ARDEN CITY HOTEL 4* ARMADA HOTEL OLD CITY 4* ARTEFES HOTEL 4* ARUNA HOTEL SULTANAHMET 4* ASITANE LIFE HOTEL 3* ATLANTIS ROYAL HOTEL 3* AVICENNA HOTEL 4* AYASULTAN HOTEL 4* AYRAMIN HOTEL 4* BARCELO ISTANBUL 5* BARIN HOTEL 3* BEETHOVEN HOTEL & SUITE 3* BEETHOVEN HOTEL ISTANBUL 4* BEETHOVEN HOTEL PREMIUM 4* BEETHOVEN HOTEL SENFONI 4* BEKDAS HOTEL DELUXE 4* BEST WESTERN EMPIRE PALACE 4* BEYAZ SARAY HOTEL 4* BEYAZIT PALACE HOTEL 4* BIRBEY HOTEL 3* BLUE ISTANBUL HOTEL 3* BLUE MARMARAY HOTEL LALELI 3* BOSS HOTEL SULTANAHMET 4* BUDO HOTEL 3* BULVAR PALAS HOTEL 4* BUYUK HAMIT 4* BUYUK PARIS HOTEL 3* BY MURAT ROYAL HOTEL 3* CARVAN HOTEL 3* CASTILLO ROJO HOTEL ISTANBUL 4* CELAL AGA KONAGI 5* CELAL SULTAN HOTEL 4* CIHANGIR PALACE 4* CIRAGAN PALACE KEMPINSKI ISTANBUL 5* CITY CENTER HOTEL TAKSIM 4* CLARION HOTEL GOLDEN HORN 4* CONRAD ISTANBUL BOSPHORUS 5* CONSTANTINOPOLIS HOTEL 3* CORNER GARDEN HOTEL 2* CROWNE PLAZA HARBIYE 5* CROWNE PLAZA OLD CITY 5* CVK PARK BOSPHORUS HOTEL ISTANBUL 5* DALAN HOTEL 3* DARKHILL HOTEL 4* DE MAREE HOTEL 3* DEDEM HOTEL SULTANAHMET 3* DELTA HOTEL ISTANBUL 4* DELUXE GOLDEN HORN HOTEL 4* DELUXE NEWPORT HOTEL 4* DEMPA HOTEL 3* DENIZ HOUSES ISTANBUL 3* DIAMOND ROYAL HOTEL 4* DIVANI ALI HOTEL 4* DIVAS HOTEL 3* DOSSO DOSSI HOTELS & SPA DOWNTOWN VATAN AVENUE 5* DOSSO DOSSI HOTELS OLD CITY-SULTANAHMET 4* DOUBLETREE BY HILTON ISTANBUL TOPKAPI 5* DUNDAR HOTEL & SPA 4* EDIBE SULTAN HOTEL 3* ELITE PALACE HOTEL 4* ELITE WORLD ISTANBUL 5* ELITE WORLD PRESTIGE 4* ENDERUN HOTEL 4* ENDICAN BEYAZIT HOTEL 3* ERESIN HOTELS SULTANAHMET 5* ERESIN HOTELS TAXIM PREMIER 4* ERESIN HOTELS TOPKAPI 5* EURO DESIGN HOTEL 3* FAIRMONT QUASAR ISTANBUL 5* FAROS OLD CITY 4* FAROS TAXISM 4* FEHMI BEY HOTEL 3* FER HOTEL 4* FORS HOTEL 3* FOUR SEASONS BOSPHORUS 5* FOUR SEVEN HOTEL 4* GEDIKPASA KONAGI HOTEL 3* GEZI HOTEL BOSPHORUS 5* GOLDEN AGE HOTEL 4* GOLDEN CITY HOTEL 4* GOLDEN CROWN HOTEL 3* GOLDEN HORN ISTANBUL 4* GOLDEN HORN SIRKECI 4* GOLDEN PALACE HOTEL 3* GOLDEN ROYAL HOTEL 4*+ GOLDEN SAND HOTEL 3* GRAND ANT HOTEL 3* GRAND ASIYAN HOTEL 4* GRAND BOSFOR HOTEL 3* GRAND EMIN HOTEL 3* GRAND HILARIUM 4* GRAND HOTEL DE PERA 4* GRAND HOTEL GULSOY 4* GRAND HYATT ISTANBUL 5* GRAND LIZA HOTEL 3* GRAND MAKEL HOTEL 5* GRAND MARCELLO HOTEL 4* GRAND MARK HOTEL 3* GRAND MILAN HOTEL 3* GRAND OZTANIK HOTEL 4* GRAND PAMIR HOTEL 4* GRAND SAGCANLAR HOTEL 3* GRAND VATAN HOTEL 3* GRAND WASHINGTON HOTEL 4* GRAND YAVUZ HOTEL 4* GRAZIELLA GOLD HOTEL 4* GULEC HOTEL 4* HAGIA SOFIA MANSIONS ISTANBUL 5* HALI HOTEL 3* HAMIDIYE HOTEL 4* HARMONY HOTEL 3* HAYRIYE HANIM KONAGI HOTEL 4* HHK DOWTOWN HOTEL 4* HILTON ISTANBUL BOMONTI HOTEL & CONFERENCE CENTER 5* HILTON ISTANBUL BOSPHORUS 5* HISTORIA HOTEL 3* HISTORIAL HOTEL 3* HOLIDAY INN ISTANBUL OLD CITY 4*+ INNOVA SULTANAHMET HOTEL 4* ISHAK PASA KONAGI 4* ISTANBUL BLUE HOTEL BEYAZIT 3* ISTANBUL HOLIDAY HOTEL 3* ISTANBUL MARRIOTT HOTEL SISLI 5* JW MARRIOTT ISTANBUL BOSPHORUS 5* KALYON HOTEL ISTANBUL 4* KAYA MADRID HOTEL 3* KONAK HOTEL TAKSIM 4* KUPELI PALACE HOTEL & SPA 3* LADY DIANA HOTEL 4* LALELI EMIN HOTEL 3* LALINN HOTEL 3* LAUSOS HOTEL SULTANAHMET 4* LE PETITE MAISON HOTEL 3* LEGACY OTTOMAN HOTEL 5* LEVNI HOTEL & SPA 5* MAGNIFICENT HOTEL 3* MALKOC HOTEL 3* MANESOL BOUTIQUE GALATA 4* MARINA CITY HOTEL 3* MARITIME HOTEL ISTANBUL 3* MARMARAY HOTEL 4* MARTINENZ HOTEL 3* MATIAT HOTEL 3* MAY HOTEL 3* MEGARON HOTEL 3* MERODDI BAGDATLIYAN HOTEL 4* MERODDI GALATA MANSION 4* MIA PERA HOTEL 3* MILANO HOTEL & SPA 4* MILLENNIUM ISTANBUL GOLDEN HORN 5* MINA HOTEL 4* MISS ISTANBUL HOTEL & SPA 4* MOMENTO GOLDEN HORN 4* MOMENTO HOTEL BEYAZIT 4* MOVENPICK HOTEL ISTANBUL GOLDEN HORN 5* MY ASSOS HOTEL 4* NANDA HOTEL 4* NEW TAKSIM HOTEL 3* NIPPON HOTEL TAKSIM 4* NOVA PLAZA CRYSTAL 4* NOVA ROMA HOTEL 2* NOWY EFENDI HOTEL 4* OBELISK HOTEL & SUITES 4* OCCIDENTAL TAKSIM 4* OLD CITY SULTANAHMET 3* OLIMPIYAT HOTEL 3* ORKA ROYAL HOTEL 4* OTTOMAN TIME HOTEL 3* OZBEKLER HOTEL 3* PALDE HOTEL 4* PELL PALACE HOTEL & SPA Boutique PERA CENTER HOTEL 4* PERA PALACE HOTEL 5* POINT HOTEL BARBAROS 5* POINT HOTEL TAKSIM 5* PREMIST HOTELS SULTANAHMET 4* PREMIST HOTELS TAKSIM 4* PRESTIGE HOTEL 3* RADISSON BLU BOSPHORUS HOTEL 5* RADISSON BLU HOTEL ISTANBUL PERA 5* RADISSON BLU ISTANBUL OTTOMARE 5* RADISSON PRESIDENT BEYAZIT ISTANBUL 4* RAMADA BY WYNDHAM GRAND BAZAAR 4* RAMADA BY WYNDHAM HOTEL TAKSIM 4* RAMADA BY WYNDHAM ISTANBUL OLD CITY 4* RAMADA HOTEL & SUITES ISTANBUL GOLDEN HORN 4* RECITAL HOTEL 4* REGIE OTTOMAN ISTANBUL 4* REYDEL HOTEL 3* RIXOS PERA 5* ROMANCE ISTANBUL HOTEL 5* ROSE GARDEN SUITES 4* SABENA HOTEL 3* SAHINLER HOTEL 3* SANTA SOPHIA HOTEL 3* SARNIC HOTEL 4* SARNIC PREMIER HOTEL 4* SED HOTEL 3* SENATUS HOTEL 3* SENYOR GARDEN HOTEL 3* SERENITY HOTEL 3* SEVEN DAYS HOTEL 3* SEVEN HILLS HOTEL 4* SHANGRI-LA BOSPHORUS 5* SHERATON ISTANBUL CITY CENTER 5* SIM HOTEL 3* SKALION HOTEL & SPA 4* SOGUT HOTEL AND SPA(ex.SOGUT HOTEL OLD CITY) 4* SOKULLU PASA HOTEL 4* SORRISO DUE HOTEL 4* SORRISO HOTEL 4* STONE HOTEL ISTANBUL 3* SULTANAHMET CESME HOTEL 3* SULTANAHMET PARK HOTEL 3* SULTANIA HOTEL 5* SULTANS INN HOTEL 3* SUMENGEN HOTEL 4* SUN COMFORT HOTEL 3* SURA DESIGN HOTEL & SUITES (OLD CITY) 5* SURA HAGIA SOPHIA HOTEL & SPA 5* SWISSOTEL ISTANBUL THE BOSPHORUS 5* TAKSIM MAXWELL HOTEL 3* TAKSIM TERRACE HOTEL 3* TAXIM EXPRESS HOTEL 4* TAYHAN HOTEL 3* THE AND HOTEL 3* THE BYZANTIUM HOTEL & SUITE ISTANBUL 4* THE ELYSIUM ISTANBUL 5* THE GALATA HOTEL MGALLERY BY SOFITEL 5* THE GALATAPORT HOTEL 3* THE GREAT FORTUNE DESIGN 4*+ THE GREAT FORTUNE HOTEL & SPA 4* THE GREEN PARK TAKSIM 4* THE HOUSE HOTEL KARAKOY 5* THE LAILA HOTEL 3* THE LOLA HOTEL 3* THE MARMARA PERA 4* THE MARMARA TAKSIM 5* THE MERETTO HOTEL LALELI 3* THE MILLION STONE HOTEL 4*+ THE PARMA HOTEL & SPA TAKSIM 4* THE PEAK HOTEL 4*+ THE PERAPORT HOTEL 3* THE RITZ-CARLTON 5* THE STAY BOSPHORUS HOTEL 4* THE STAY NISANTASI 4* TITANIC CITY TAKSIM 4* TIYATRO HOTEL OLDCITY 3* TREND HOTEL 4* URANUS ISTANBUL TOPKAPI HOTEL 5* VICENZA HOTEL 4* VIVA HOTEL 3* VIZYON CITY HOTEL 3* VOGUE HOTEL SUPREME ISTANBUL 5* XANADU ISTANBUL 3* YASMAK SULTAN HOTEL 4* YILSAM SULTANAHMET HOTEL 4* ZURICH HOTEL 4*