Assuming your company will be paying for your daughter's education, I would suggest Doha College. It's got a good reputation and the grades are above UK standards (like QIS)

http://www.dohacollege.org/admission/register.php

Please note, places fill up fast and there may be long waiting lists (as with most popular schools). If you do want your daughter to go to Doha College, I suggest you apply soon for the September intake.

Good luck!