Groups of practitioners working across different advocacy organisations coalesce in the form of issue or country specific advocacy networks. These networks are conceptualised as meso-level social spaces with their own unique logics, discourses and hierarchies. Looking at NGO practitioners advocating and reporting on reconciliation and accountability in Sri Lanka, this chapter traces the development of the South Asian island’s post-war transnational advocacy space. It is observed how increasingly symbiotic relations between leading global advocates and their foreign policy audiences led to a structuration of the network around a logic of liberal peace governance. Advocates that espoused this dominant logic came to occupy a privileged position in the emergent social space, while the Tamil diaspora activists that diverged from it experienced marginalisation. These dynamics are conceptualised as a process of social and epistemic division. These divisions highlight global advocates’ dependence on political gatekeepers, as well as their potential complicity in excluding heterodox knowledge.