It's right at the end of Al Sadd street while driving towards Aspire Zone from Royal Plaza Mall. When you drive from Ramada Signal towards Al Sadd street, go past Royal Plaza and just before you come to the last signal on Al Sadd street, IHorizon is in the last building on your right side. Make sure not to cross this signal. You must look for a side road so as not to go past this signal. Good luck!