Purpose Even though extant research highlights the crucial role some stakeholders play in helping corporations understand, manage and mitigate the occurrence of modern slavery in their supply chains and operations, there is a fundamental lack of understanding of all the relevant stakeholder groups and the specific roles they play. By adopting a stakeholder theory approach, this study aims to identify all the key stakeholders and their associated roles towards supporting corporations’ modern slavery monitoring, detection and disclosure activities. Design/methodology/approach A systematic literature review was conducted by following the PRISMA guidelines. Relevant literature included scholarly work focusing on the identification of key stakeholders and the roles they play in enabling corporations’ modern slavery monitoring, detection and disclosure activities. Findings Nine stakeholder groups and their roles were identified, such as governments, workers, IGOs, NGOs and suppliers. Examples of performed activities include conducting audits, providing training, monitoring occurrences of modern slavery, enforcing regulations, reporting on labour issues and evaluating corporations’ modern slavery reports. Practical implications A comprehensive understanding of key stakeholders and their roles enables better collaboration towards achieving transparency within corporations’ supply chains and operations. Other stakeholders can leverage these findings to enhance modern slavery reporting activities. Social implications Clarity regarding key stakeholders and their roles may improve quality and quantity of reported modern slavery information, enhancing corporations’ public accountability. Originality/value This study adopts a stakeholder theory approach to provide a comprehensive understanding of key stakeholders and their roles in enhancing corporations’ modern slavery reporting activities.