Holder a scholarship of a PhD in Management, Stéphane Guérard worked more than twenty years as a consultant and teacher, mainly in the world of social economy. Among his favorite subjects are the environment and the management of residual materials. Born as a popularizer, he likes to share relevant information to allow his audience to come back from his interventions with useful content allowing them to take action. His commitment to sustainable development motivates him to move forward in innovative projects needed to safeguard our planet for future generations. He joined Certex following a consulting mandate. He now runs this beautiful social economy enterprise to continue his development. Certex has a dual social and environmental mission intrinsically linked: to make a hundred people work with disabilites by valuing used textiles.