In Nigeria’s corporate sector, the correlation between board stakeholder participation and company value has emerged as a pivotal element in improving organizational performance and sustainability, profoundly affecting market perception and investor trust. This study investigated the relationship between board stakeholder participation and the value of publicly listed non-financial enterprises in Nigeria. The research population consisted of personnel from specific non-financial companies listed on the Nigerian Exchange Group, with participants sourced from the accounting departments of the selected corporations. The study employed a survey research approach, incorporating both primary and secondary data, with 600 responses collected via structured questionnaires and secondary data derived from financial records spanning 2014 to 2023. A sample of 60 enterprises was obtained by a heterogeneous purposive sampling method. The acquired data were analysed utilising descriptive statistics, Pearson’s correlation, and regression analysis approaches. The results demonstrated a substantial positive correlation between board stakeholder engagement and firm value, evidenced by a coefficient of 0.7474 (74%) and a significant p-value (ρ < 0.05), indicating that heightened stakeholder interaction bolsters corporate reputation, fortifies investor confidence, and elevates overall firm valuation. Given these findings, it is advisable for enterprises to implement proactive stakeholder engagement initiatives, foster inclusive decision-making, and enhance communication channels with key stakeholders. This study provides significant insights for corporate managers, investors, and policymakers aiming to improve firm value through effective stakeholder involvement in Nigeria’s evolving business-landscape.