Mathilde Ortscheidt won the 1st prize at the prestigious "Pietro Antonio Cesti" Baroque Opera Competition in 2023 and always and always driven by a desire to explore diverse repertoires. She is regularly invited to perform as a soloist with baroque ensembles such as Les Arts Florissants (concerts conducted by Paul Agnew and the recording of Schütz's Italian Madrigals), Les Talens lyriques (Licia in Cimarosa’s L'Olimpiade at Vienna and Versailles), the Poème Harmonique (conducted by Vincent Dumestre), the ensemble Correspondances (Cupid and Death’s program) or Il Caravaggio (conducted by Camille Delaforge, notably for the production of Montéclair's La Morte di Lucrezia).

She has also appeared as Tauride (Arianna in Creta) at the Innsbrucker Festwochen, La Mère sans insouciance and the Directrice du Cirque (Othman Louati’s Les Ailes du désir) at the Angers-Nantes, Rennes, Dijon and Compiègne Operas, the Third Chosen One (Là-Haut, by Maurice Yvain) with Les Frivolités Parisiennes, as La Mère (Kurt Weill's Der Jasager) at Maison de Radio France and Théâtre de Caen, and as Sesto in Frank Kawczyk's production of Mozart's La clemenza di Tito at La Seine Musicale, she also sings the alto solo part of Vivaldi's Dixit Dominus with the Orchestre de Chambre de Paris, conducted by Fabio Biondi.

Very active in the field of contemporary music, she created the role of La Mère in Martin Matalon's Celui qui dit non, with the Orchestre Régional de Normandie conducted by Olivier Opdebeeck (directed by Dorian Rossel and Delphine Lanza) and, as part of the Académie Ravel, two songs by pianist Jean-Baptiste Doulcet (cycle Glissements Progressifs du Désir).

After studying drama at the ESCA (École Supérieure de Comédiens par l'Alternance), she joined the Maîtrise Notre-Dame de Paris and Rosa Dominguez's class, while taking part in master classes with Margreet Honig, Regina Werner, Anne Le Bozec, Marcel Boone and Jennifer Larmore.

Mathilde Ortscheidt won in 2024 a Secial Prize at the Wigmore Hall/Bollinger International Song Competition, the 1st Prize in the Cesti Competition at the Innsbruck Festival of Early Music in 2023, was a semi-finalist at the 2023 Queen Elisabeth Competition, awarded a First Prize at the 2022 Canari International Lyric Singing Competition, was a winner of the Bellini Competition (Prix de la Ville de Vendôme) and a finalist in the annual Génération Opéra audition; In 2022 and 2023 she was also a prizewinner at the Fondation Royaumont, where she sang the role of Penelope in Monteverdi's Il ritorno d'Ulisse in patria.

Higlights for her 2024-2025 season : Dorabella (Cosi fan tutte) at the Théâtre de l’Athénée, Arras, Compiègne, Tourcoing, Chambéry and Saint-Céré, with Miroirs Etendus, Mozart’s Requiem in Versailles, conducted by Théotime Langlois de Swarte, Le Devoir du Premier commandement with the Ensemble Il Caravaggio, les Lamentations de Zelenka with the Diderot Ensemble, Bach’s cantates with the Ensemble Correspondances, or a Voix Nouvelles concert at the Opéra de Rouen.

Mathilde is represented by RSBA since 2023.