“We simplify complex, expensive and environmentally
challenging supply chains for small molecule APIs
using the power of synthetic biology in combination
with synthetic chemistry”

Esben Halkjær Hansen, SVP R&D

Who We Are

At River Stone Biotech, we combine cutting-edge synthetic biology with proven chemical processing to set new standards in molecule manufacturing.

Our proprietary platform uses flexible intermediates to efficiently produce a broad portfolio of specialty molecules. We can cost-effectively produce complex small molecules and fatty acid derivatives both for use as precursors and final APIs, all delivering the correct chirality and reliable quality.

By reducing reliance on traditional, hazardous chemistry, we lower environmental impact and improve process sustainability without compromising performance.

Our highly experienced management team has taken multiple programs from concept through development and into commercial-scale production, supporting both pharmaceutical APIs and non-pharma, high-value applications.