His dissertation (defended in 2014) focused on explaining the development transnational interest group communities, as well as the strategic action by interest groups in the context of global governance. He researches the politics of interest representation in a transnational and EU context, as well as on the functioning of international organizations in the fields of climate change and global trade. He recently received a four year Veni grant focussing on the agenda setting power of interest groups in the European Union. His work has appeared, among others, in European Journal of Political Research, Comparative Political Studies, and Review of International Organizations.