There are firms with head offices in the United States that will set up a small shop of five or six employees in Canada and attempt to sell technology solutions north of the border. They aren't solely large multinationals, but some smaller firms as well. However, when there are legal restrictions like unlimited liability, the lawyers south of the border will say, “We will simply never sign on to a contract that has unlimited liability there.”
On February 1st, 2018. See this statement in context.