Described as uncompromising and trail-blazing, Simon Groppe is an avant-garde jazz pianist, composer and music producer based in Brussels. He has been a contributor to various projects, including Monde Merveilleux de Pépito , Motmot , YOHES , Aleph Quintet , and Friction . Past collaborators include Fabrizio Cassol, AKA MOON, Adèle Viret, Tao Yu, Simon Comté, Pierre-Antoine Savoyat, Minino Garay, Théo Zipper, and Antoine Pierre.

His career has taken him to venues across Europe and beyond, including the Toots Jazz Club, Jazz Station and Walter in Brussels; the 38RIV Jazz Club, Sunside and the Musée du Quai Branly in Paris; the Arsenal de Metz; the French Institute in London; the French Cultural Institute in Tunis; and the East Shore Live Jazz Café in Beijing. He has also performed at festivals including Gent Jazz Festival, Umeå Jazz Festival, Fusion Jazz Festival in Berlin and the International Jazz Platform in Łódź.

Recent accolades include a nomination for Best Instrumental Album at the 37th Golden Melody Awards in Taiwan for I Am Here , to which he contributed. Previously, he was named a laureate of the Royaumont Foundation in 2024 and was selected for a residency at the Villa Salammbô Foundation in Tunis in 2023.

Alongside his work as a performer, Simon Groppe is involved in project production and concert organisation through THÖZ, a label and collective he co-founded with Théo Zipper. Foregrounding both radicalism and total creative freedom as core values, the label defines itself through a DIY approach and a curation style focused on "weird experimental avant-garde" music, with a catalog currently comprising 19 albums. The collective is also organises unique concert events in Brussels and beyond.