This report analyzes developments in bio-based isooctane and isooctene technology. Isooctane and isooctene derived from bio-based sources can be used as a fuel additive with a very high octane number - with potential to improve the GHG footprint. This study assesses the technical, commercial, and economic aspects of producing isooctane and isooctene via bio-based sources, and investigates future capacities.