The purpose of this study was to explore the strategising practices of sustainability champions at Transnet, a South African state-owned enterprise (SOE). The study set out to discover what these micro-strategising practices were and what strategic outcomes they had for the organisation at the corporate level of strategy praxis. The problem that this research sought to address was the need for greater progress towards corporate sustainability and the lack of research into the role, contributions and practices of sustainability champions in formal sustainability roles within relatively large organisations. This exploration was carried out in the form of a qualitative single-case study which drew on serial interviews (two per participant) and case documentation as sources of evidence. The data were analysed using Applied Thematic Analysis (ATA) in the CAQDAS software Atlas.ti. The study answered the research questions and found that sustainability champions engaged in seven sets of strategising practices with seven corresponding strategic outcomes. While it was not the intention of the study to develop a conceptual model, the process of synthesising the main findings resulted in a model termed the web of sustainable strategising. The study concludes that sustainability champions are strategists who aid their organisation in the pursuit of corporate sustainability while influencing the direction of macro-institutional arrangements towards sustainable development. These results cannot be generalised, but they are transferrable to similar contexts. / Business Management / M. Com. (Business Management)