Silent Circle
Silent Circle's Overview
Silent Circle is a secure communications company, acquired by Privoro in February 2023, known for its enterprise-grade, end-to-end encrypted solutions for voice, video, messaging, and file sharing. Originally focused on protecting privacy and data from surveillance and cyber threats, its technologies like Silent Phone and the GoSilent hardware VPN are now part of Privoro's broader mobile security offerings. The acquisition aims to combine Silent Circle's software expertise with Privoro's hardware-based security to deliver comprehensive protection for mobile communications and data.
Where is Silent Circle's Headquarters?
HQ Function
Serves as the central operational hub for Privoro, including the continued development, integration, and support of Silent Circle's secure communication technologies within Privoro's product ecosystem.
Notable Features:
Likely a modern office facility designed to support a technology-driven company, fostering engineering, research, and business operations. Specific architectural details are not publicly emphasized.
Work Culture:
As part of Privoro, the work culture is expected to be focused on innovation in security, mission-driven privacy protection, and collaborative development of cutting-edge mobile security solutions.
HQ Significance:
This location is significant as the current nerve center for Silent Circle's legacy technologies, guiding their evolution and integration into Privoro's offerings to address modern mobile security challenges for enterprise and government clients.
Values Reflected in HQ: The operational hub reflects values of security, innovation, and a commitment to protecting digital privacy and sensitive information—principles central to both Silent Circle's heritage and Privoro's ongoing mission.
Location:
While distinct Silent Circle international offices were consolidated post-acquisition by Privoro, the reach of its technologies remains global. Privoro serves an international clientele, including multinational corporations, government agencies, and NGOs across North America, Europe, Asia, and other regions. Sales, support, and distribution of solutions incorporating Silent Circle's technology are managed through Privoro's global channels.
Street Address:
85 S Weber Dr
City:
Tempe
State/Province:
Arizona
Country:
USA
Silent Circle's Global Presence
London, United Kingdom (Historical)
Address: [Previously located in central London; specific address varies and is outdated]
To expand Silent Circle's market presence and provide localized services to government and enterprise clients across the EMEA region requiring high-security communication tools.
Buying Intent Signals for Silent Circle
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Executive Team of Silent Circle
As of April 2025, Silent Circle' leadership includes:
Investors of Silent Circle
Silent Circle has been backed by several prominent investors over the years, including:
Executive New Hires/Exits in the Last 12 Months
The most significant recent executive changes concerning Silent Circle's leadership occurred around its acquisition by Privoro in February 2023. This led to the departure of Silent Circle's then-CEO and CTO. Since the acquisition, leadership for Silent Circle's technologies has been under Privoro's executive team. No distinct 'Silent Circle' badged executive hires or exits have been publicly announced in the 12-15 months following the integration, as operations are now unified under Privoro.
Departures
Technology (Tech Stack) used by Silent Circle
Discover the tools Silent Circle uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.
Silent Circle Email Formats and Examples
Prior to its acquisition by Privoro, Silent Circle commonly used standard corporate email formats. For historical reference or pattern recognition, formats like [first_initial][last]@silentcircle.com or [first].[last]@silentcircle.com were likely. Post-acquisition, communications are managed via Privoro's systems.
flast@silentcircle.com (e.g., jdoe@silentcircle.com) or first.last@silentcircle.com (e.g., jane.doe@silentcircle.com)
Format
jdoe@silentcircle.com
Example
70%
Success rate
News and media
Privoro Press Release • February 1, 2023
Privoro Acquires Silent Circle to Bolster Secure Mobility Offerings
Privoro, a leader in mobile security hardware, announced its acquisition of Silent Circle, a pioneer in end-to-end encrypted communications. This strategic move combines Privoro's hardware-anchored security with Silent Circle's software-based encryption to offer comprehensive secure mobility solutions for enterprise and government sectors....more
Cybersecurity Excellence Awards • March 27, 2019
Silent Circle's GoSilent Recognized in 2019 Cybersecurity Excellence Awards
Silent Circle's GoSilent, a portable Personal Firewall with integrated VPN, was named a winner in the 2019 Cybersecurity Excellence Awards. The product was lauded for its innovative approach to securing data-in-transit for mobile users and protecting connected devices....more
TechCrunch • October 26, 2015
Silent Circle Starts Shipping The Blackphone 2, Its Privacy-Focused Android Smartphone
Silent Circle announced the global shipping of its Blackphone 2, a smartphone built from the ground up to maximize user privacy and security. The device featured enhanced Silent OS, an Android-based operating system with advanced security and privacy controls....more
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