The story
Founded by Jon Callas, Phil Zimmermann and Vincent Moscaritolo in 2011.1
Private company
Silent Circle
Logo: Vbcamille01, Public domain, via Wikimedia Commons3
Encrypted communications firm
Silent Circle is an encrypted communications firm based in Washington DC. Silent Circle provides secure communication services for mobile devices and desktops. Launched October 16, 2012, the company operates under a subscription business model.2 It was founded by Jon Callas, Phil Zimmermann and Vincent Moscaritolo.1 Wikipedia text CC BY-SA 4.0
Last updated Oct 21, 2026.
Overview
2011Founded1
- HeadquartersLe Grand-Saconnex1
- Websitesilentcircle.com
- Legal formlimited liability company1
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Silent Circle is an encrypted communications firm based in Washington DC. Silent Circle provides secure communication services for mobile devices and desktops. Launched October 16, 2012, the company operates under a subscription business model.2
Leadership
Who has led Silent Circle, and when. Pick a name to see everywhere that person has worked.
- FounderJon Callas1
- FounderPhil Zimmermann1
- FounderVincent Moscaritolo1
Products and brands
- Blackphone
Listed on Wikidata.1
Timeline
- 2011Founded Founded1
Links
- Websitesilentcircle.com1
- WikipediaSilent Circle (software)
- More imagesWikimedia Commons
- WikidataQ7514544
Sources
The numbers on this page point here. Each one links to the record it came from.
- 1WikidataSilent Circle on Wikidata
- 2WikipediaSilent Circle on Wikipedia
- 3Wikimedia CommonsSilent Circle logo by Vbcamille01, Public domain