Transition intermediaries are expected to play an important role in the acceleration stage of the energy transition. While existing scholarship helps us understand the role of transition intermediaries in the early stages of transitions, it remains unclear what role intermediation plays in subsequent transition stages, especially at the local level where the implementation of policies and legislation takes place. In this article, we aim to investigate how intermediation takes shape in the acceleration stage of the energy transition. Drawing on the literature on transition intermediaries and intermediation at the local level, we explore the role of transition intermediaries in two local energy projects in the Netherlands. Through extensive qualitative research, we find that various actors can act as transition intermediaries and that a single actor can fulfil different intermediary roles simultaneously. Our findings contribute to the literature on transition intermediation and urban intermediaries, emphasising the key role intermediaries play in aligning innovations with existing institutional configurations. Furthermore, we highlight their role in connecting the energy transition to broader societal developments, including through citizen involvement in local and regional governance arrangements.