Born in Holstebro, Denmark in 1969, Thomas Søndergård studied percussion at the Royal Danish Academy of Music. He was a timpanist with the European Union Youth Orchestra from 1989 to 1992, and was subsequently appointed timpanist of the Royal Danish Orchestra (Det Kongelige Kapel) in Copenhagen.
He started to conduct at the age of twenty-seven under the supervision of Alexander Polianichko, Yves Abel and Graham Bond.
Søndergård was appointed principal conductor of the Norwegian Radio Orchestra in 2009, a post he held until 2012. His standing in with the BBC National Orchestra of Wales led to his appointment as principal conductor of that orchestra, his contract recently having been extended until at least 2018.
Søndergård is also principal guest conductor of the Royal Scottish National Orchestra. He has made guest appearances with the Gewandhaus Orchestra Leipzig and the Mahler Chamber Orchestra. He has also given performances in the Netherlands with the Rotterdam Philharmonic Orchestra and the Netherlands Philharmonic Orchestra.
Søndergård is making his first appearance with the Royal Concertgebouw Orchestra.