AbstractEnergy efficiency is vital for energy transitions, and energy-poor, vulnerable, and hard-to-reach groups are at risk of being left behind. In this context, local middle actors have been suggested as partners in deploying targeted energy support. Nevertheless, scarce research has engaged with them to assess if they are willing and capable of contributing, if they can reach households, and if they have unmet needs. In this research, we draw on the mapping of 198 local organizations and 34 semi-structured interviews conducted after deploying a pilot energy support service in Setúbal, Portugal. Interviews characterized the organizations and target audiences, assessed energy literacy, explored potential collaborative roles, and recognized drivers, barriers, and solutions. Results show that most organizations are willing to disseminate activities, forward citizens, facilitate contacts, co-organize events, and participate in training. Half can identify vulnerable families for proactive support. Drivers include environmental concerns, community participation, and social support. However, few seem able to conduct energy support, hire/redirect staff, or participate in coordination. Scarce human resources, lack of time, other priorities, and financing concerns severely constrain local organizations. This case study finds some potential for local organizations to act as intermediaries in energy support, building on their communication channels and trusted relationships to fulfill specific roles. However, they are often hard-to-reach themselves and burdened with demanding activities. Thus, we suggest that fostering collaborations with local organizations is challenging but possible. It requires dedicated funding, time, and resources to empower, capacitate, and reward middle actors for their contributions in delivering energy support.