Corporations as a conceptual business entity are not the issue, international corporations are, and the implied internationalism of finance are. A corporation settled in the home nation should not be viewed as the enemy, but as an ally of the Organic State, because in such a State, its worst impulses will be limited and its productivity turned to the use of the people.
Hitler understood this, which is why he cooperated with and advanced the interests of corporate entities in Germany, at times Nationalizing but at times Privatizing elements of the economy. The corporation is not evil–it is a perfectly efficient mindless machine, but like a lawnmower, if you allow it to run wild, it may run over a baby.
The assertion however that we need a "international" anything to deal with this is missing the point entirely. International communities are worse than corporations. Far worse. More dangerous and more evil, because unlike corporations, their desire is not simply for profit but for hegemony.