Silent Circle

Silent Circle is a leader in enterprise privacy, delivered through a revolutionary mobile platform of devices, software and services, starting with ZRTP to build a fundamentally different mobile architecture. Now led by Bill Conner, the former Entrust President and CEO and Nortel President, Silent Circle was co-founded by Mike Janke, former Navy SEAL and security expert; Phil Zimmermann, co-founder of PGP, developer of the ZRTP protocol and 2015 inductee into the Internet Hall of Fame; and Jon Callas, creator of Apple's whole disk encryption software and co-founder of PGP Corporation. Silent Circle is headquartered in Switzerland, home to the worlds best privacy laws.
Le Grand-Saconnex, CH
80 (est)+4%

Key People at Silent Circle

Michael Janke

Michael Janke

Co - Founder & CEO
Philip Zimmermann

Philip Zimmermann

Co - Founder & President

Silent Circle Locations

Le Grand-Saconnex, CH
Fort Washington, US

Silent Circle Metrics

Silent Circle Summary

Founding Date


Total Funding

$130 M

Latest funding size

$50 M

Time since last funding

4 months


Silent Circle Online Presence

Silent Circle News

Silent Circle Company Life