 The energy community, EC, is a framework for promoting renewable energy sources and reducing greenhouse gas emissions. It encourages the development of distributed energy resources, DIRS, such as solar and wind power, by providing access to electricity grids and other infrastructure. To facilitate the adoption of DIRS, energy companies known as aggregators have emerged. These aggregators provide services to help member organizations aggregate their DIRS into larger clusters, thus increasing their market share and creating more value. However, there is limited understanding of how these aggregators operate and how they create value. This paper reviews existing literature on the subject and provides insights into the role of aggregators in the EC context. It also discusses the potential benefits of aggregators and the challenges they face. Finally, it suggests areas for further research. This article was authored by Marina Bertolini and Gregorio Morissanato.