Formed in 2006, The Clarion Choir is based in New York City and is one of the leading vocal ensembles in the United States. The Choir has a focus on Baroque and Classical repertoire, often performing together with the renowned period-instrument ensemble The Clarion Orchestra. The Choir made their Lincoln Center debut in 2010 performing Bach chorales at the White Light Festival to critical acclaim. In 2016, the Choir premiered a lost Russian masterwork from the 1920s, Passion Week by Maximilian Steinberg, in Moscow, St. Petersburg, and London. Their performances were featured on PBS, and their recording of Passion Week received a GRAMMY® nomination for Best Choral Performance as well as a nomination for BBC Music Magazine's Choral Award. The Choir has since performed and recorded other works from this period, such as Alexander Kastalsky's Memory Eternal, which debuted at #1 on the Billboard Traditional Classical chart, and Kastalsky's Requiem, which received “Editor's Choice” in Gramophone magazine.

Over a two-year span in 2023 and 2024, the Choir performed Rachmaninoff's complete cycle of choral works in celebration of the composer's 150th birthday. This extraordinary project was featured in The New York Times and BBC Music Magazine and culminated with a performance of his All-Night Vigil ('Vespers') at Carnegie Hall. Their 2023 recording of the Vespers was nominated for a GRAMMY® award for Best Choral Performance. 

The Clarion Choir enjoys special partnerships with The Metropolitan Museum of Art, The English Concert and the Orchestra of St. Luke's. The Choir has joined The English Concert and conductor Harry Bicket for three of their presentations of Handel oratorios at Carnegie Hall and on tour, Semele (2019), Solomon (2023), and Hercules (2026). Together they have performed in venues such as the Auditorio Nacional de Música in Madrid, the Barbican Centre and St. Martin in the Fields in London, Zellerbach Hall in Berkeley, Théatre des Champs Elysée in Paris, LA Opera, and Carnegie Hall. As part of the Met Live Arts series, The Clarion Choir has presented eight Renaissance and early-Baroque programs in recent years in the Medieval Sculpture Hall and the Met Cloisters. This past July 4th, the Choir performed David Lang’s National Anthems three times throughout the day in the Metropolitan Museum’s American Wing as part of the Museum's semiquincentennial celebrations. The Choir has also collaborated with notable artists and ensembles such as the Baltimore Symphony Orchestra, Leonard Slatkin, Susan Graham, Isabel Leonard, and Madonna at the 2018 Met Gala.