This article considers a scarcely explored perspective in relation to the execution of judgments of the ECtHR, notably, the formal involvement of NGOs and NHRIs. Rule 9(2) of the Committee of Minister Rules’ allows NGOs and NHRIs to participate in the supervision process for the execution of the Court’s judgments by submitting reports (Communications) in which these actors review and assess domestic authorities’ performance with respect to judgment execution. On the basis of interviews with important stakeholders, this article provides an all-round user-based perspective of this Rule 9 mechanism and its perceived impact. Doing so elucidates whether the Rule 9 procedure allows NGOs and NHRIs to engage in the important cycle of reporting and pressuring for change, the conclusions of which are important in assessing if and how Rule 9 works to advance the execution of judgments of the ECtHR.