Signal Foundation

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Signal Foundation
FoundedJanuary 10, 2018; 20 months ago (2018-01-10)[1]
Type501(c)(3) nonprofit organization
82-4506840 [2]
FocusOpen source privacy technology
Headquarters650 Castro Street, Suite 120-223 [3]
Area served
Key people
SubsidiariesSignal Messenger

The Signal Foundation, officially the Signal Technology Foundation,[2][3] is a non-profit organization founded in 2018 by Moxie Marlinspike and Brian Acton.[4] Its mission is "to develop open source privacy technology that protects free expression and enables secure global communication."[5]

The foundation shares its name with the Signal messaging app. The Freedom of the Press Foundation served as the project's fiscal sponsor and continued to accept donations on behalf of Signal while the foundation's non-profit status was pending.[4]


On February 21, 2018, Moxie Marlinspike and WhatsApp co-founder Brian Acton announced the formation of the Signal Foundation, a 501(c)(3) nonprofit organization.[4][6] The foundation was started with an initial $50 million in funding from Acton, who had left WhatsApp's parent company Facebook in September 2017.[6]


  1. ^ "Signal Technology Foundation". OpenCorporates. Delaware Department of State: Division of Corporations. 15 July 2018. Retrieved 13 February 2019.
  2. ^ a b "Signal Technology Foundation". Nonprofit Explorer. Pro Publica Inc. Retrieved 6 June 2019.
  3. ^ a b c "Statement of Information" (PDF). California Secretary of State. 28 August 2018. Retrieved 13 February 2019.
  4. ^ a b c d Marlinspike, Moxie; Acton, Brian (21 February 2018). "Signal Foundation". Retrieved 21 February 2018.
  5. ^
  6. ^ a b Greenberg, Andy (21 February 2018). "WhatsApp Co-Founder Puts $50M Into Signal To Supercharge Encrypted Messaging". Wired. Condé Nast. Retrieved 21 February 2018.

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