Kim-Harald Plattner was born in Stuttgart and received his first violin lessons at the age of four. At sixteen he began studying music at the Music Academy in Graz with Yair Kless. In 2009 he moved to the Buchmann-Mehta School of Music in Tel Aviv and in 2012 to the College of Arts in Bern, where he completed his Master of Arts in 2014 under Corina Belcea.
Plattner has won many prizes at national and international competitions, including the 1st prize and special prize of the international "Queen Sophie Charlotte" competition.
He is a passionate chamber musician and has performed with artists such as Ivry Gitlis, Mate Szucs, Julian Rachlin and others.
His piano trio, founded in 2014, the "Trio Specter", performs all over the world and has been the winner of various international competitions.
Out of an interest in high-quality stringed instruments, he founded Streichwerk in 2016 and has been Head of Sales at A. Kaegi Violinmaking & Restoration since 2019.