Gaudianello brand is owned by Bucci SRL in Italy.

This spring, known since Roman civilization, is located on Mount Vulture, an ancient volcano that has been inactive for 130,000 years. From these precious springs two waters of the highest quality flow: the natural sparkling Gaudianello and the natural oligomineral Ninfa Leggera.

Company Web Site : https://bucci-srl.com/en/gaudianello-leffervescente-naturale-per-chi-si-gusta-la-vita/