Research Question/Issue We examine the impact of two differing types of employee board representation (i.e., labor board representation and employee shareholder board representations) on environmental, social, and corporate governance components of ESG performance and the moderating role of each type of employee board representation on the relationship between ESG performance and the firm's market value. Research Findings/Insights Using a propensity score matching approach on a sample of French firms listed in the SBF 120 index from 2007 to 2017, our findings reveal that labor board representatives act in the opposite direction to employee shareholder board representatives by focusing exclusively on improving social performance and reducing environmental and corporate governance performance. The way employees are represented on the board of directors also moderates the corporate ESG–financial performance relationship differently. Theoretical/Academic Implications Employee directors are not a homogenous group. The differentiation between the two types of employee directors (i.e., labor board representatives and employee shareholder board representatives) brings a deeper understanding of the effect of stakeholders' representation on the board. Practitioner/Policy Implications Our results are of interest to governance policymakers because they provide them with a fresh understanding of the key role of employee board representation. A meaningful inference to be drawn from our findings is that employee ownership and the representation of employees on the board as employee shareholders may bring about fundamental changes in employees' attitudes and behavior on the board and may, in this regard, be considered as a credible way of generating social harmony and constructive relationships between employees and shareholders. Video Abstract https://youtu.be/GqB_6GxtH2A