Any taxi company can bring you to RAI Amsterdam. Only taxis operated by the company TCA can pick you up at the RAI, however. During certain events, there will be TCA taxis waiting at the entrance of the event. If there are none available you can order one via the reception.
If you are coming to an event in RAI Amsterdam by coach you can usually park in P6. Simply follow the signs marked P-RAI 6. Some events attract a large number of buses. If this is the case, there will be signs on the Europaboulevard which indicate the route coaches can follow to park. You can let us know you are arriving by coach via firstname.lastname@example.org.