While Insider Mediation plays an essential role in conflict prevention as a critical part of the Sustaining Peace Agenda, efforts to support Insider Mediators in the Arab States region have often been supply-driven and fallen short to connect isolated initiatives to broader peacebuilding efforts. Taking stock of the progress made under the UNDP Sustaining Peace Through Insider Mediation in the Arab States (UNDP IM Project), the present publication seeks to better understand how Insider Mediators contribute to broader peacebuilding efforts in a context marked by heightened risks of conflict regionalization and violent extremism. The research focuses on three selected pilot countries - Sudan, Lebanon, Jordan. Two of them shifted from compounded crises to active conflict settings during the UNDP IM Project’s implementation period (2022-2024).