This paper is the result of research and a comprehensive review and interrogation of how the EITI and Open Ownership work. It has benefited from the engagement of a wide range of stakeholders from both organisations, and key global and local partners. The process included interviews with experts and government implementers of beneficial ownership transparency, both at the international and country level. Whilst the individual contributions are too numerous to mention, the EITI and Open Ownership are grateful to all those who volunteered their time to participate in the interviews as well as to the different partners who contributed to the discussions held throughout the research process. Finally, special thanks are due to BHP Foundation’s Natural Resource Governance team for their consistent wisdom and guidance.