15. Paul Clarke

Key points

CTO, Ocado

Anyone who thinks online retailing is a piece of cake should take a look at what Clarke is developing at Ocado: automated warehouses, robotics, artificial vision systems and much that must remain secret. Clarke's technology. "This is conceptual stuff, but it's not an indulgence. It's absolutely essential in order for us to maintain the disruptive lead we have over everybody else," says Clarke