Purpose

The purpose of this study is to examine the relationship among chief sustainability officer (CSO) expertise, sustainability-related executive compensation (SEC) and biodiversity disclosure (BD).
Design/methodology/approach

Based on legitimacy and upper echelons theory, this study uses both random-effects and logit regressions and looks at the 2014–2019 financial years of companies listed on the STOXX Europe 600 (1,992 firm-year observations).
Findings

The findings of this study are in line with prior research on sustainable corporate governance and indicate that CSO sustainability expertise significantly increases BD and that SEC strengthens this relationship as a moderating variable. The results of this study are robust to a battery of sensitivity analyses.
Originality/value

This study makes a major contribution to prior analyses, as this appears to be the first on the link among CSO expertise, SEC and BD, as per the author’s knowledge. This study has major implications for business practice, regulators and research.