I've used many tuition agency to help me hire tutors for my children and my niece and nephews. Some agents wouldn't be very responsive and took quite long to get back to me with a list of recommended tutors. I won't name them here. Those that were more responsive and dedicated are from elite tutors and excel tuition agency. I think their websites are http://elitetutors.sg and Excel Tuition Agency They respond pretty fast and one of the agency even responded in the middle of the night. Very dedicated bunch.