Pffffffffffft ... first google hit.
Project on Government Secrecy (Federation of American Scientists)
The Project is directed by Steven Aftergood and is supported by grants from the Open Society Institute, the Rockefeller Family Fund, the Herb Block Foundation, the HKH Foundation, the CS Fund, and the Stewart R. Mott Charitable Trust.
And the Pew Charitable Trust (”A Flatulent Feedlot Cow Killed a Polar Bear Today!”) is involved as well.