Why do some national governments in East and Southeast Asia receive more transnational scrutiny and pressure on their domestic human rights practices than others? This article argues that transnational human rights reporting is more likely to target states where domestic activists and victims are densely connected with human rights international nongovernmental organizations (INGOs) through a local membership base. Human rights INGOs increase social demands and opportunities for transnational human rights reporting by strengthening local actors’ capabilities to leverage human rights and international solidarity as an advocacy strategy, and by mobilizing them for monitoring and information collection on the ground. Event count analyses of 25 Asian states from 1977 to 2008 find robust support for the theory, using new data on Amnesty International's human rights reporting and human rights INGOs’ local membership base, and controlling for government respect for human rights, regime type, military power, and other factors.