This article draws attention to an understudied phenomenon, transnational political alliances (TPA), which occur when multinational corporations cooperate with local companies to influence public policies of the host government. The article first explores the economic and political sources of TPAs, their structures, and the obstacles to their formation. It then examines TPAs in the context of China, a critical case because of the hostile political environment that discourages TPAs. However, the surprisingly common occurrence of TPAs in China indicates the power of economic incentives for political cooperation yet also suggests the need for further studies of TPAs in a wide variety of economic and political settings.