I do not know of a company that specilizes in this. Alot has to do on runway and taxiway configuration, then the ratios of small, medium, heavy, and A380's using the airport. If it is only one runway it will be low, maybe 24 operations an hour max. This could be more or less depending on the number and placement of high speed taxiways. Crossing runways can be a little better, maybe 30 to 32 when well controlled. Then multiple runways make things even better, etc......