NIS2 Recital 19

Member States should be responsible for submitting to the Commission at least the number of essential and important entities for each sector and subsector referred to in the annexes, as well as relevant information about the number of identified entities and the provision, from among those laid down in this Directive, on the basis of which they were identified, and the type of service that they provide. Member States are encouraged to exchange with the Commission information about essential and important entities and, in the case of a large-scale cybersecurity incident, relevant information such as the name of the entity concerned.