Granted not all of these will fit your situation or will you meet their criteria, but I wanted just to make you aware of the millions and millions of dollars that are available through these well-known organizations. Yes, they definitely line up to take our money when we shop with them, but they also have pretty good records of giving money back to schools and the educational arms of foundations.These are live links so you can go directly to their grant and funding web pages. This list is not comprehensive by any means.
Darden Restuarants (Red Lobster, Olive Garden, Longhorn Steakhouse, etc.)
Try a few of these. You might find a lot more help than you expect.