I've been thinking about this for a while now.
The Foundation exists worldwide, and has a good many employees. They deal with danger on a day to day basis, containing these objects and creatures in elaborate containment facilities, protecting the world from the unseen and being unseen as well.
Yet not once have I seen where the Foundation has any income.
I would assume, being an organization like it is, the Foundation is non-profit, simply in the business because someone has to be. I also would assume that they get money from various governments (grants, if you will) to help with their services. But containing creatures and items like these alongside paying personnell and keeping the equivalent of a prison for the class D's would cost more than that.
In a sense, would the Foundation be considered a part of the "Illumi-naughty" (ha), or do they just have investments in corporate interests?
I'd like to hear about anyone's headcannon for this. I'm curious.