Among Germany's most prominent cellists of her generation, Raphaela Gromes was signed to the Sony Classical label in 2016. In addition to standard cello works by Dvořák, Elgar, and Saint-Saëns, Gromes' repertory includes more unusual pieces, old and new, by Luigi Boccherini and by contemporary composers, including Dominik Giesriegl and Mario Bürki. In 2011, she began performing as the Duo Servais with violinist Amelie Böckheler, and the following year, in what became an established duo, with pianist Julian Riem. The latter pair made their recording debut in 2014 with an album of cello sonatas by Mendelssohn and Richard Strauss. With Riem, she released the album Serenata Italiana in 2017. In 2021, Gromes issued the recital album Imagination.