In a slowing global economy with diminished confidence in the long-term prospects of public financial markets, many institutional investors are looking for innovative, and often private, investment strategies to meet expected return targets. One source of potential inspiration has, perhaps surprisingly, come from the community of sovereign development funds. SDFs are strategic, government-sponsored investment organizations with dual objective functions: to deliver high financial performance, while fostering development. Despite expectations that this dual function inevitably leads to financial underperformance, certain SDFs have actually delivered consistently high investment returns, especially in private markets. As such, SDF strategies are increasingly being used as models for investment strategies among non-developmental investment organizations. This chapter explores the rise of SDFs, explains the differences between SDFs and SWFs, and substantiates variations in their models of governance and management. In doing so, its goal is to situate SDFs in the changing world of global financial markets and public policy.