Stéphane Horel works as an investigative journalist for Le Monde. She is specialized in corporate lobbying, conflict of interest and the manipulation of science. Her in-depth work on the EU regulation of endocrine-disrupting chemicals was short-listed for the Albert Londres Prize (2016) and awarded the Louise Weiss Prize for European journalism (2017). With Stéphane Foucart, she co-authored the "Monsanto Papers" obtaining the European Press Prize Investigative Reporting Award in 2018. She was also active in reporting for the "Implant Files" investigation coordinated by the International Consortium of Investigative Journalists (ICIJ).