Abstract.This article explores the essential contribution of different actors in promoting and implementing the circular economy, a sustainable economic model that aims to minimize waste and maximize resources. The article provides a comprehensive insight into how the circular economy is being put into practice and underlines the importance of involving all actors in this sustainable transformation. By looking at the roles and collaborations between governments, companies, non-governmental organizations and citizens, this article provides a detailed insight into how the circular economy comes to life in practice. It emphasizes the contribution of key actors such as governments, who can enact policies and laws favorable to the circular economy, and companies, who can develop innovative products and processes. The article also highlights the active involvement of non-governmental organizations in educating and raising public awareness of the benefits of the circular economy and how citizens can contribute through responsible consumption practices. Through case studies and concrete examples, the article illustrates how these key players are working together to create a more sustainable supply chain and economic environment. In conclusion, it is emphasized that the collaboration between these actors is essential for achieving a successful transition to the circular economy and for building a greener and more sustainable future. This paper was supported by the State Program 20.80009.0807.22 Development of the mechanism for the formation of the circular economy in the Republic of Moldova.