Pirmin Grehl studied in Karlsruhe and Berlin with Renate Greiss-Armin and Jacques Zoon.
He has won several national and international music competitions, such as first prize at the Carl Nielsen International Flute Competition 2002 in Odense (Denmark) and both second prize and the Brothers Busch Prize at the ARD International Music Competition 2004 (Munich, Germany). In 2006, he was again successful at the ARD competition with his Chantilly wind quintet (second prize, audience prize and commissioned composition prize).
From 2002 to 2017, he was principal flautist of the Konzerthaus Orchestra Berlin, as well as guest principal flautist of the Chamber Orchestra of Europe and several major symphony orchestras of German Radio.
As a soloist, Pirmin Grehl has performed with orchestras such as the Bavarian State Radio Symphony Orchestra, the Stuttgart Radio Symphony Orchestra, the Berlin Symphony Orchestra, the Kaiserslautern Radio Orchestra, the Rhineland-Palatinate Philharmonic Koblenz and the Jena Philharmonic. In 2006 he made his debut in Japan as a soloist with the New Japan Philharmonic Orchestra at the Tokyo Suntory Hall.
He has also given numerous concerts as a soloist with chamber orchestras such as the Berlin Chamber Orchestra, the Potsdam Chamber Academy, the Munich Chamber Orchestra and the Kurpfalz Chamber Orchestra.
Pirmin Grehl has made recordings for various radio and television stations. He has been invited to renowned festivals such as Lockenhaus, the Rheingau Music Festival and the Mecklenburg-Vorpommern Festival.
His CDs have been released by the labels Naxos, NEOS and Profil Edition. He was awarded the French record prize Diapason d’Or in 2009.
After several years of teaching at the Hochschule für Musik in Berlin, he has been a professor at the Musikhochschule Luzern since 2010, as well as at the Musikhochschule Karlsruhe since 2017.