Research at the TGCL mainly covers the areas of East African Community law and comparative regional integration law. Research conducted by students for their LLM dissertation and PhD thesis forms an important pillar of research at the TGCL. PhD theses by TGCL students are published in the "TGCL Research Series". Furthermore, the centre publishes the “TGCL Series” which deals with current issues of East African Community law, European Union law, constitutional law, human rights law and related themes.
In 2015, the TGCL organised a research workshop on “Eastern African Common Legal Space in Economic Law: State of the Art and Future Perspectives, with Consideration of the European Experience”, sponsored by the Volkswagen Foundation.
In 2017/2018, a research project on "Steering Regional Integration through Regional Economic Communities in Africa", sponsored by the German Federal Ministry for Economic Cooperation and Development, was conducted.