Disasters disproportionately impact marginalised groups. The COVID-19 pandemic has caused unprecedented disruption in higher education students' experiences. We sought to understand how twelve universities across three countries endeavoured to support students to retain access to learning through COVID-19, particularly those from minoritised and intersectional backgrounds. We were guided by the following overarching questions: What strategies did universities employ to support students during COVID-19 and what was the uptake of these strategies by students? How did students perceive the usefulness of institutional COVID-19 support initiatives? and How did students experience the impacts of COVID-19 in 2020? To deepen our learning, points of comparison were made between countries, institution types, and student cohorts from minoritised, intersectional, and non-minoritised backgrounds. Twelve universities participated in the research, with ten located in Australia, one in the United States of America (US) and one in the United Kingdom (UK) as international comparison points. Institutions were classified as being research-intensive, regional/remote, or innovative. To guide our research, we developed a conceptual framework. This framework integrated perspectives from three distinct fields of knowledge and theory intersectionality, crisis intervention, and ecological perspectives. The framework attends to the micro-, meso-, and macro-level environments and interactions of our sector, across two temporal stages of the pandemic acute and chronic crises periods. We identified learning, wellbeing, and finances as the three main foci of our investigation of student support and experiences in our analytic framework. A mixed-methods approach was used to address the research questions through two data collection processes at each participating institution: an analysis of institutional communication artefacts (emails and websites) detailing university responses to student support during COVID-19; and a survey of over 2500 students regarding their perceptions of the impacts of the pandemic on university experiences and the adequacy and use of institutional support during COVID-19. The artefact analysis focused on the intended student demographics, type of support, accessibility of support, timing of support, and user experience of support access. The student experience survey collected data on: student demographics and self-identified minoritised status; sense of belonging at university; change in student experience resulting from COVID-19; uptake and usefulness of university support services. [Publisher summary, ed]