In this episode of The Venture, we share a conversation with Thomas Gros, CEO and cofounder of circulee, a Berlin-based distributor of pre-owned digital hardware. The German start-up provides smaller businesses with a green and cost-effective alternative to new IT devices, offering them professionally tested and warrantied hardware previously leased by large corporates. Gros sat down with McKinsey’s Tomas Laboutka to discuss the central importance of the circular business model, the challenges of pioneering a new business category, and the advantages of being backed by a corporate investor with a ready supply of high-quality, pre-owned devices.