Reply To: Multiple categories items on same location

ok, to be clear, I need to generate a map with different kind of custom post on the map.
For example, let’s say I want to show restaurants, doctors and schools on the same map.

In fact I have a mysql database with 27000 geolocated records. Each record belongs to on category or custom post.
After selecting several records with gravity form, I need to generate dynamic map with multiple pins.

Does that make sense ?