Electronic Frontier Foundation (EFF) — Headquarters: 815 Eddy Street, San Francisco, CA

NoteThe source is the EFF's official 'About' page from eff.org/about. While the subject matches the claim (both refer to the Electronic Frontier Foundation), the provided source text excerpt does not include any physical address or headquarters location information. The text discusses EFF's mission, history, work, and organizational structure, but contains no mention of '815 Eddy Street, San Francisco, CA' or any other address. To verify this claim, a source that explicitly states the headquarters address would be required.

NoteThe source is the 'About' page from EFF's website, which contains general information about the organization, its mission, history, and various sections/links. However, the provided excerpt does not include any physical address or headquarters location information. While the source is relevant to EFF, it simply does not address the specific claim about the headquarters address. To verify this claim, one would need to find a source that explicitly states EFF's physical address.