Since its inception in 2018, the Doctoral Colloquium on Bioenergy and Biobased Products has developed into an international platform for early-career researchers covering the entire value chain of bioenergy and biobased products. Reflecting political, economic and scientific developments, the colloquium has continuously expanded its scope, most recently including biotechnology and bioeconomy research. Biomass, as the only renewable carbon source, plays a key role in sustainable energy carriers, materials and products. As a limited resource, its efficient use requires innovative concepts such as cascading use and system integration. The colloquium promotes scientific exchange and networking among doctoral researchers presenting their latest work.