You probably would break the law, based on my understanding, if you don't have consent, because you would be incorporated as different corporations. You also run into that instance a lot in the private sector if it's a manufacturer and they have a dealer network. Probably the opinion of the courts is that if consent is given to a manufacturer, the dealer itself can't actually send commercial electronic messages to that person.
On October 19th, 2017. See this statement in context.