  This paper presents a first attempt to analyse Open Access integration at the
institutional level. For this, we combine information from Unpaywall and the
Leiden Ranking to offer basic OA indicators for universities. We calculate the
overall number of Open Access publications for 930 universities worldwide. OA
indicators are also disaggregated by green, gold and hybrid Open Access. We
then explore differences between and within countries and offer a general
ranking of universities based on the proportion of their output which is openly
accessible.
