Having a comprehensive integrity system is seen as an important defence against corruption for countries or organisations. In the area of development and aid, many organisations have come to view integrity systems as an important part of their efforts to fight corruption. Global bodies engaged in development also often have similar integrity systems. A mapping of these systems was done for three organisations with global reach.The findings show a diffuse anti-corruption policy landscape for each. The absence of a more centralised system does not mean that anti-corruption policies are necessarily less effective. Rather, the findings speak to the need for further research to understand how the policies are implemented and whether greater cross-departmental collaboration and information-sharing would be needed upon the potential risk of leaving certain areas uncovered and creating gaps in enforcement.