Are there any other ideologies that favor pre-emptively invading countries and handing the economy over to corporations besides neoconservatism and fascism?
That's not quite what corporatism is, the way you mean it.
Perhaps I could have made my point more clearly. What I am suggesting is that in both neoconservative and fascist ideology (and seemingly exclusive to those two), there is the idea that the economy of a nation benefits most if controled by the collective interests of corporations.
American proto-fascism, at least in terms of where Gully and Lewis and others see it in the essence of Tea Party, has nothing to do with neoconservatism. It's hilarious how leftists still are watching over their shoulders for this neoconservative boogeyman.