Stergios Theodoridis was born in Thessaloniki, Greece. He began his studies in cello at the age of 7, under the guidance of Zoran Stepic, with whom he remained as a student until receiving his diploma from the Conseratory of Northern Greece in 2011. In 2002 he was awarded a special prize in the competition of the Alumni of the conservatories of northern Greece foundation. In 2010 he received a third prize in the competition Jugend Musiziert in Lübeck, Germany, in the category violoncello solo. In 2014 he started his studies in the Bachelor’s degree program of the Sibelius Academy in Helsinki, in the class of Raimo Sariola.Since 2017, he has continued working in the Master’s program in the studio of Tuomas Ylinen, while simultaneously pursuing a music pedagogy diploma. He has participated in masterclasses with globally acclaimed soloists such as Frans Helmerson, Wen-Sinn Yang, Andreas Brantelid, Jean-Jacques Kantorow. He has given solo and chamber music recitals in Germany, Austria, Italy, and Finland, as well as in Thessaloniki and Athens in Greece. He has collaborated with orchestras such as the Estonian Sinfonietta, the Turku Philharmonic Orchestra, and the Helsinki Philharmonic Orchestra.