In a recent GitHub-sponsored survey, all developers have declared to have adopted some InnerSource practices, and more than half of them have declared to have an active InnerSource culture. Thales has over seven years of experience in InnerSource and has some valuable insights to share. In this talk, you will discover why it is important to have an InnerSource initiative in a large company like Thales. You will also discover how InnerSource is implemented within the group, from a technical, legal and organizational perspective.