The European Severe Storms Laboratory studies severe weather, climate, and forecasting; organizes forecaster training; and manages a large database of severe-weather reports. The European Severe Storms Laboratory (ESSL) was founded in 2006 to advance the science and forecasting of severe convective storms in Europe. The ESSL was a grass-roots effort of individual scientists from various European countries. The purpose of this article is to describe the ten-year history of ESSL and present a sampling of its successful activities. Specifically, ESSL developed and manages the only multinational database of severe weather reports in Europe: the European Severe Weather Database (ESWD). Despite efforts to eliminate biases, the ESWD still suffers from spatial inhomogeneities in data collection, which motivates ESSL’s research into modelling climatologies by combining ESWD data with reanalysis data. ESSL also established the Testbed to evaluate developmental forecast products and to provide training to forecasters. The Testbed is organized in close collaboration with several of Europe’s national weather services. In addition, ESSL serves a central role among the European scientific and forecast communities for convective storms, specifically through its training activities and the series of European Conferences on Severe Storms. Finally, ESSL conducts wind and tornado damage assessments, highlighted by its recent survey of a violent tornado in northern Italy.