Tuomas Lehto began learning the cello at the age of three under Anja Maja. In 2000 he went on to study at the Sibelius Academy, first with Hannu Kiiski and later with Marko Ylönen and Jan-Erik Gustafsson. From 2007 to 2008 he studied in Stockholm under Torleif Thedéen. In 2006 Lehto took third prize in the Turku Cello Competition. In 2004 he had been Finnish finalist in the Eurovision Young Soloists Competition. He has given numerous recitals and been a soloist with several Finnish orchestras. He also gave the first performance of Ville Matveyev’s Cello Concerto, which was dedicated to him.

Lehto is a regular performer of chamber music and a frequent guest at many festivals. He has also performed in several countries in Europe besides Finland, in the United States and in the United Arab Emirates. He was principal cellist with the Helsinki Philharmonic Orchestra from 2009 to 2013. He is also Artistic Director of the KuruFest festival and a member of the Total Cello Ensemble