The ecosystem is the whole collection of companies that are part of the stack that makes up an IoT solution. Very rarely will you be able to create an IoT solution on an island in isolation, in a vacuum. Because the nature of IoT is that it makes use of components that typically come from a lot of different places. So that would include companies that make sensors, radios, network providers that are providing connectivity, cloud service providers, application developers, and many other components. So, the ecosystem is this collection of manufacturers and service providers that all play a role in the different components that make up an IoT solution.
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