Email: info AT stiefelfreethoughtfoundation DOT org
(We receive many inquiries and are unable to respond to them all. All unsolicited requests for grants, funding and donations from SFF will be ignored; we simply get too many requests for money.)
Sorry for the crazy contact formatting, it is designed to keep spammers at bay.
Stiefel Freethought Foundation
c/o Foundation Source
501 Silverside Road, Suite 123
Wilmington, DE 19809-1377