Internet of Things (IoT) is quickly and firmly moving ahead as the next big frontier for tech ecosystem building and investment. Below is a good compilation of the current active IoT ecosystem parts. Its a great compilation by Matt Truck.
The ecosystem clearly demarcates the evolving space in IoT with a view on the future development of the tech ecosystem. It also gives details of the companies that are actively seeking at disrupting the IoT space.
Below is how the IoT space looked like in 2015. (Courtesy: CBInsights)