Innovation platforms (IPs) have had significant success in serving as the arena in which innovation systems thinking has been put into practice by including diverse stakeholders as platform actors. This is especially true for platforms that drive social innovations via an innovation for inclusive development (I4ID) philosophy. Research has addressed IPs in the agricultural development and ecological conservation sectors, and more recent work has highlighted the importance of innovation platforms in other sectors, especially the sector of healthcare delivery in sub-Saharan Africa. As a departure point for research into the complex interactions of platform actors at the platform level in healthcare IPs, this article begins to unpack the concepts around the complex actor interactions contained in IPs by identifying the practices of engagement (PoE) that emerge from the IP literature. The initial insight gained is valuable in giving the authors an idea of the “lie-of-the-land” of the literature sources that have been identified and will refine the direction of the research as these PoE, and their functions in the platform, are developed and understood.