The Hospitality Partnership are the sole official hospitality provider to the IRFU.
We have recently come across IMA Dublin (https://imadublin.com/) who are selling unofficial hospitality packages. We have reported them, but please be mindful when approached by suspicious emails advertising hospitality.
We strongly advise not booking with any unofficial sources especially Almeda Events, Rugby Nation or Venue Hospitality as they are known to sell fake packages to consumers.