This paper summarizes the Transnational Public-Private Governance Initiatives in World Politics Data. The data contains detailed information on the scope, participants, and institutional design of 468 transnational public-private governance initiatives (TGIs) in which states and/or formal intergovernmental organizations cooperate with business and civil society actors to govern global problems. I describe the sample generation and discuss coding rules. I also map the development of TGIs at the initiative and state level of analysis, and show how the new data contributes to enhancing researchers’ understanding of transnational public-private governance. The paper concludes by identifying puzzles and avenues for future research on transnational public-private governance initiatives in world politics.