Book excerpt: This brief draws on three cases to show how the private sector contributes to the conceptualisation, design, delivery and evaluation of climate-smart agricultural interventions and can help bring them to scale. Engaging the private sector in CSA interventions enhances the applicability – and thus the sustainability of interventions, increases uptake and delivers a triple win for donors, beneficiaries and the private sector. They emphasise that private-sector players will be more likely to engage in scaling-up of CSA when they can see a compelling business case to justify their investments.