Unanimously awarded first prize at the Paris National Conservatory of Music Paris in Jane Berbié's class, Sophie Koch made her debut in France, but her career took an international turn when she sang Rosina in Il Barbiere di Siviglia and Dorabella in Così fan tutte at Covent Garden, London and the composer in Ariadne auf Naxos at the Semperoper, Dresden.
After making her name in Mozart roles, she added French, Italian and German operas to her repertoire, including Octavian (Der Rosenkavalier), Charlotte (Werther), Adalgisa (Norma), Brangäne (Tristan und Isolde), Concepcion (L’Heure espagnole), Mère Marie de l’Incarnation (Dialogues des Carmélites) – which she recently sang at the Théâtre des Champs-Elysées and Covent Garden –, Fricka (Das Rheingold and Die Walküre), the title roles in Ambroise Thomas' Mignon and Massenet's Cléopâtre, Margared (Le Roi d’Ys), and Adriano (Rienzi). She has sung at the top opera houses (Vienna State Opera, La Monnaie in Brussels, the Teatro Real in Madrid, the Capitole de Toulouse, the Operas of Zurich, Geneva, Berlin, Dresden and Chicago, and the Salzburg Festival). She has sung in the complete Ring cycle at the Paris Opera and the Bavarian State Opera, Munich, and she made her debut at the Metropolitan Opera in New York in 2014 as Charlotte. She has given numerous recitals (at Salzburg, the Vienna Musikverein, Paris, London, Frankfurt, Berlin, Luxembourg, Brussels and Madrid).
She has recorded Lieder by Wolf, Schubert, Strauss, Wellesz and Bloch, Peer Gynt, Manon, Laurent Petitgirard's opera Elephant Man, excerpts from Ariadne auf Naxos under Antonio Pappano, Mahler's Eighth Symphony with Kent Nagano, a Schumann song cycle (Myrten), Chausson's Le Poème de l’amour and de la mer, Ravel's Shéhérazade, Berlioz's cantata Herminie and DVDs of Der Rosenkavalier (Decca), Ariadne auf Naxos (Baden-Baden Festival, Deutsche Grammophon) and Werther (Paris Opera, Decca). She has received the Christel Goltz Prize awarded by the Semperoper, Dresden.