<p>Attaining Circular Economy (CE) has become a global aspiration, due to the unprecedented environmental challenges affecting the world. A Circular Economy removes dependency on a linear developmental trajectory. Organisational networks play a role in steering the adoption and implementation of Circular Economy practices. The objective of this research was to assess the role of Sustainable Business Networks in promoting a Circular Economy. In this paper we assessed the Africa Circular Economy Network (ACEN)—a grouping of 168 members in promoting CE practices as well as assessing its challenges, opportunities and barriers. An analysis of the key activities, business models and legal status, was also undertaken. It was observed that ACEN is a successful network with key activities centred around 168 members from 42 countries. The research also found out the motives of joining the network ranged from knowledge, access to green finance and establishing connections. The network was observed as self-sustaining and established a revenue base of over 50,000,000 Rands on an annual basis, thereby reducing dependency on external support. The unique business model of its financial sustainability was attained through augmenting subscriptions and consultancy financing models in order to attain financial viability of the CE network. We conclude that a blended financing model is responsible for attaining network success.</p>