This article is the result of qualitative research conducted on the corporate social responsibility (CSR) communication disseminated by two financial institutions, FNB and Capitec, on their social networking sites (SNSs). The research employed a phenomenological research paradigm to explore the interactions between the financial institutions and their stakeholders on Facebook and Twitter. Collected data were analysed by means of interpretative discourse analysis as well as two computer-aided qualitative data analysis software programmes, Leximancer and Centim. The authors categorised the financial institutions' CSR communication in themes and coded it according to a newly formulated theoretical framework of Ubuntu-centred communication practices on SNSs. It was found that FNB's CSR communication was based on Ubuntu values whereas Capitec's CSR communication did not exhibit key characteristics, such as the inclusion of narratives and archetypes, sound conflict resolution strategies, and the presentation of mutually beneficial solutions to societal issues. Based on the findings, it is proposed that organisation-stakeholder interactions can be facilitated when organisations disseminate CSR messages and constructively engage with stakeholders on SNSs. Moreover, culturally-specific communication management strategies, such as Ubuntu-centred communication, should be infused in holistic communication models to foster participatory online communities which are characterised by dialogue, mutual trust and reciprocity.