The approved Tsunami Service Providers that are currently operating under the IOC-UNESCO framework are given below:
Tsunami Service Providers officially provide this information to the designated Tsunami Warning Focal Points / National Tsunami Warning Centres (TWFP/NTWC) of Member States. It is then, the responsibility of mandated national organisations operating within the legal framework of the sovereign nation in which they reside and serve, to provide alerts to their citizens and communities.