Anna Catellani is the permanent chief conservator at Karlberg Castle regarding the preservation and restoration of its collection. The collection largely consists of older paintings on canvas and panel made during the 17th century.
In 2007, Ateljé Catellani restored a set of works, created by well-known naval painters, acquired by the Swedish Maritime Museum Association. About fifty of these have been restored from defects and age-related ailments of various kinds, from tears to discoloration of generations of cigar smoke.
Ateljé Catellani har haft uppdrag för Svenska Akademien och restaurerat några av dess konstverk, exempelvis porträttet av Anders Celsius här bredvid.