Service providers ARE NOT large companies

I heard lately many presentations about virtualization solutions, being them orchestration solutions, or storage, networking or soemthing else, and the vendors selling them have a usual phrase “this product is designed for large companies AND service providers”. The underlying idea, coming from vendors thinking at both use cases for their products, is that a large companies is completely comparable to a service provider. At first, the thought is correct, but there is a significant difference that ultimately makes this thinking wrong.