Using key performance indicator (KPI) scores from data and insights provider Preqin, the study assesses the performance of global infrastructure private equity (PE) funds that have achieved higher environmental, social, and governance (ESG) scores. The analysis, conducted using Ordinary Least Squares (OLS) regression, reveals that funds with higher ESG scores achieved better performance over the 1994–2022 period. The findings are robust when the net internal rate of return (net IRR) and total value over paid-in (TVPI) are used as proxies for infrastructure PE fund performance. Furthermore, industry diversification and fund size attenuate the outperformance of high ESG funds. The results are robust by using subcomponents of country-level ESG ratings as the instrumental variables. These results contribute to the debate on the performance of socially responsible investing funds and provide further validation for PE fund managers to incorporate ESG considerations into the investment process.