Tomás Brantmayer (b. 1992) is a Chilean composer based in London. His music has been focused on topics like indigenous cultures, folk religion, soundscape, natural environment, and social justice, always as a way of reflecting on South American territory and identity.

His works have been performed by ensembles such as Camerata Salzburg, Britten Sinfonia, National Symphony Orchestra of Paraguay, and Explore Ensemble, in venues like the Mozarteum Grosser Saal (Austria), the Kulturpalast Dresden (Germany), and la Cité de la Musique (France), among others.

In 2019, he was composer-in-residence at the MacDowell Colony (USA) where he worked on a cantata commissioned by the National Symphony Orchestra of Chile. In 2021, Tomás made his debut at the Salzburg Festival with his orchestral piece Canción de cuna para Fuegia Basket. The same year, he received the Carlos Riesco Composition Prize from the Chilean Academy of Fine Arts, and in 2024, the Pulsar Award as ‘Best Classical Music Artist of the Year’ for his piece for orchestra Morbus Sacer.

Tomás holds a Master of Composition from the Royal College of Music in London, where he studied under the mentorship of Kenneth Hesketh, and with the generous support of an RCM Scholar, the Big Give, and the Ibáñez Atkinson Foundation Scholarship.  He has also participated in masterclasses with composers such as Mark-Anthony Turnage, Colin Matthews, and Marco Stroppa.

Besides his work as a composer, Tomás is a bell ringer and participates in Campaneros de Santiago and Hackney Bell Ringers, with whom he has rung bells around Chile, Spain, Italy, and the UK.

He is currently composer-in-residence for the Concepción Symphony Orchestra, Chile.