Abstract: relationship with key business strategy variables is still inconclusive, while longitudinal analyses of its link to financial performance are scarce. To determine whether business profit could be a robust argument to attract companies to assess and certify their social and environmental impact, in this research we explore the connection that exists between the B-Corp certification and corporate financial performance in the short-, medium- and long-term. For this purpose, we use an international sample of 103 B-Corp companies that have been certified in 2013?2020 and we use the S&P Capital IQ database to collect their economic data. A control sample of non-B-Corp companies is also collected to establish a comparison and avoid bias in the research. The findings show no differences in the performance of B-Corps and non-certified companies before the certification, so a selection effect does not seem to exist in B-Corp certification. Regarding the performance of companies after the certification, known as treatment effect, B-Corps have smaller economic return than pre- and non-certified companies during two years after certification. Nonetheless, after that and in the long run, differences in financial performance between precertified and B-Corps are not statistically significant. These findings set the basis for future studies aiming to understand the reasons behind the initial loss of profitability after the B-Corp certification