This chapter assesses the effects of intra-industry trade on lobbying in the EU. It includes the results of analysis of an original dataset of EU-based lobbying over several trade agreements. First, the chapter briefly discusses the nature of trade policy in the EU, and then surveys the literature on the politics of trade in Europe, with a focus on the state of our knowledge about the character of political coalitions and the involvement of industry associations and individual firms in the trade policymaking process. Second, the chapter discusses the role of intra-industry trade in the EU and presents an argument about the way that IIT has eroded the ability of European industry associations to lobby jointly over trade policy. Third, the chapter introduces the dataset used to assess the argument and discusses the quantitative analysis and results. The results support the theory developed in this book and demonstrate that IIT affects societal coalitions across diverse institutional contexts.