Xavier Rogé is the founder of Numista. He is in charge of the overall administration of the catalogue and the website, of the partnerships, and of the technical evolutions and maintenance of the website.
Catalogue administrators manage the content of the numismatic catalogue. They contribute to improving the catalogue, they manage the structure of the catalogue, and they coordinate and assist the referees.
Master referees are volunteers who commit their time and knowledge to coordinate the improvements to the catalogue, with a larger scope than referees. Their role includes enriching the catalogue, reviewing user contributions, and assisting referees.
Forum moderators are volunteers who oversee the discussion forum. They ensure that the forum stays organised, spam-free, kind, and peaceful, by enforcing the forum policy.
Referees are volunteers who commit their time and knowledge to coordinate the improvements to the catalogue for specific issuers or groups of issuers. They review the changes in the catalogue for the issuers in their scope and they improve the catalogue by adding missing information and enforcing consistency to the catalogue guidelines.