This 4-year HIFA Project (2022-5) explores the question ‘How can decision-making processes for health systems strengthening and universal health coverage be made more inclusive, responsive and accountable?’ We focus on the extent to which actively involving civil society voices and other stakeholders can humanise decision-making processes for UHC and promote equity. Our project is situated within the discourses around complex policymaking processes for health systems, informing these processes with evidence, and fostering civil society’s agency and participation within these processes.