A conceptual gap exists regarding the system level activities of intermediaries. This article addresses this gap by answering research questions about how the system level activities of intermediaries can be conceptualised, and empirical demonstrated. In doing so, we study intermediaries in support systems for eco-innovators in three regions across Finland, Germany and Sweden. From our empirical findings and the literature on systemic intermediaries we conceptualise four systems levels of intermediation: (i) between individual entities, (ii) within networks, (iii) across networks and (iv) within innovation systems. These four conceptual levels are based on: (a) the entities between which the intermediaries operate, (b) the intermediation roles and (c) the scope of appropriation of the potential intermediation benefits. Contrary to previous literature on systemic intermediaries which presents such intermediaries as coherent entities, our discussions suggest a heterogeneity of roles within such intermediaries on multiple system levels which can generate internal tensions. Thus, we introduce the term systemic intermediation as a flexible alternative for describing the system level activities of intermediaries compared to systemic Intermediaries dominant in the literature. For researchers and policy makers, this contribution is an essential step which can facilitate a systematic analysis of the impacts of intermediaries in innovation systems.