Purpose This paper aims to ascertain whether a company with a solid reputation for corporate sustainability leadership deems its workforce to be as important as its external stakeholders when developing and communicating its sustainability activities, and to evaluate its workforce’s recognition of such activities. Design/methodology/approach To achieve these aims, a case study of a leading Brazilian company was carried out. The authors conducted an interview with the corporate sustainability department and submitted a survey by questionnaire to its employees. The data were complemented by documentary analysis of the company’s annual reports, sustainability reports, corporate website, newsletters and press releases. Findings Results suggest that the company does attribute significant importance to its workforce and that its employees have sound knowledge of its sustainability practices and engage with them. Research limitations/implications Given that the research adopts a case study approach, the scope for generalisation is limited. Originality/value The present study explores a neglected aspect of extant research – the relations between corporate sustainability and human resources.