This chapter draws crucial linkages among the principal stakeholders and actors in transitional justice, at the local, domestic and international levels. It highlights important observations, discourse and empirical findings in respect to the work of transnational networks and NGOs in transitional justice in Northern Uganda. The core of the analysis is based on empirical data on the practice and discourse of NGOs, revealing their impact in the contested transitional justice processes. More specifically, it reveals key dimensions of NGO work and engagement with international criminal justice through their victim-oriented work, and technical and capacity building initiatives around the Courts. Based on the analysis, it is argued that NGOs greatly enhanced the legitimacy of the ICC and the domestic war crimes tribunal in Uganda.