With over 50 billion connected devices expected by 2020, the Internet of things (IoT) is poised to have a major impact. What’s not clear, however, is how the IoT’s complex ecosystem — a loose network of interacting products and services, pictured below will evolve and proliferate and which companies will emerge as leaders. (Click here to for a version that you can enlarge to see more detail.) The red nodes represent platform companies; the gray ones are companies that provide a product or service.