The Orion String Trio was formed in 2012 in Basel by Violinist Soyoung Yoon from South Korea, German Violist Veit Hertenstein and English Cellist Benjamin Gregor-Smith. Friendship as well as a deep mutual musical understanding were factors in the decision to develop the String Trio beside their individual Solo careers.

In February 2016 The Orion String Trio won 1st Prize as well as the Audience Prize in the 15th "Migros Kulturprozent" Chamber Music Competition in Zürich. The Jury was "impressed and fascinated by the clear joy of playing together, the spirit of the ensemble and the level of professionalism". The Prize also includes a CD production.

The Orion String Trio performs regularly in Switzerland for example in the Tonhalle hall in Zürich as well as having given concerts in Germany, England and a big tour around Korea where the trio performed in such Halls as the Isang Yun Birthplace in Tongyeoung and in the Yongsan Concert Hall in Seoul among others.

Important Artistic Influence has been from such Musicians as Harald Schoneweg (Cherubini Quartet), Bernard Smith (Lindsay Quartet) and Thomas Demenga.