Prevention and intervention efforts against religiously motivated extremism remains a relatively new field, necessitating collaboration between civil society and security authorities. This dual involvement naturally leads to overlap, raising questions about exchange and collaboration between various stakeholders. Over the past decade, diverse formats for cooperation and networking between civil society and security authorities have been developed, many of which have proven effective. However, there remains the need in the coming years for further development. This article highlights the challenges in establishing and sustaining cooperation efforts by examining the distinct societal roles and self-perceptions of the actors involved, as well as the legal framework guiding these efforts. Additionally, this article presents successful models and identifies opportunities for future development. The authors approach this topic from a distinctly civil society perspective, shaped by extensive experience in preventing religiously motivated extremism.