Accelerators are becoming popular in helping new ventures succeed. However, current research on their impact on new venture performance does not consider the role of institutional environment. This paper examines the importance of institutions and assesses the impact of accelerators on new venture performance using a generalized difference-in-differences technique on a worldwide accelerator database. The study finds that while accelerators positively impact revenue and equity funding, however the impact is higher in countries with strong institutions. The study highlights the significance of institutions in assessing the impact of accelerators on new ventures, contributing to nascent research in this area.