Combatting climate change is among the most critical issues on the global policy agenda. The transition towards a greener economy will require a pivot towards more sustainable production processes and consumption patterns. Entrepreneurs have the potential to be a major driving force behind this effort through their capacity to develop and propagate innovative green solutions. To unlock this potential, it is crucial for policy makers to implement appropriate policies and measures that enable green entrepreneurs to thrive. This report identifies lessons from international policy practices in stimulating and supporting green entrepreneurship from three case study countries – Canada, Germany and Israel – to inform Denmark about effective policy practices and pitfalls to avoid as it implements initiatives to strengthen its green transition. Recommendations are offered across a number of areas such as promoting greater co-ordination between relevant policy actors, strengthening specialised support for green entrepreneurs and building green markets.