Research Funding Organisations (RFOs), both public and private, are key actors in the research ecosystem and have a unique role in supporting a culture of RI. They can do this both through innovations in their working practices and by promoting appropriate policies and governance arrangements for RI in RPOs. Therefore, we encourage all RFOs to develop and implement a comprehensive Research Integrity Promotion Plan (RIPP). A RIPP addresses both internal organisation procedures and RFOs’ expectations and relations with RPOs and the research community and underpins the RIPPs being developed by RPOs. A RIPP is aligned with both national and international regulations, and can be tailored to support the mission, disciplinary focus, local context, and organisational needs of the RFO.