Impact Sourcing is the outsourcing of activities to disadvantaged social groups in order to help them become participants of the globalized digital world and thus benefit from higher incomes and wealth creation. Firms started using this approach in the early 2010s to contribute to their Corporate Social Responsibility goals. Empirical, mainly qualitative, research in the form of case studies has documented the achieved advantages and challenges faced. Our paper provides a systematic literature review of these studies. It consolidates the extant research findings along five involved stakeholder groups—impact sourcing providers, involved employees, their social communities, the outsourcing clients, and the government—and identifies avenues for future research.