Even though some studies have analysed incubators in developing countries, only a few have analysed incubators in Africa. However, developing countries need entrepreneurial endorsements. Nevertheless, the attention on social and economic aspects in developing countries is relevant. To better understand it, this work aims at establishing a link between incubation and its social dimensions by answering the following Research Question: How can the social engagement of incubators be categorised in Cameroon, Senegal and Uganda? To answer this Research Question fifteen incubators in Cameroon, Senegal and Uganda were interviewed. In conclusion, this study proposes a new taxonomy on the social engagement of incubators through their support on projects and people. We explain that incubators in developing countries may be identified as Social Business Incubators. The results also explain how the incubators’ procedures and sponsorship are related to this categorization.