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Your team communication: Absolutely confidential, fully encrypted.
Founded in 2013, Signal Messenger is a leading global provider of highly secure, encrypted communication, headquartered in San Francisco, USA.
Independent B2B performance index (0–100 points). It is calculated mathematically and without subjective influence from four verified pillars: company stability, aggregated feedback from publicly available online sources, documented compliance certifications, and operational transparency.
Headquarters
3000 16th St, 94103-3403 San Francisco, United States
Employees
50
Founded
2013
Management
Meredith Whittaker
Founded in 2013, Signal Messenger is a leading global provider of highly secure, encrypted communication, headquartered in San Francisco, USA. The application is operated by the non-profit Signal Foundation and is characterized by a strict zero-access architecture. This means that neither Signal itself nor third parties have access to the content of messages, voice calls, or video calls. The technological foundation is the renowned, open-source Signal Protocol, which is also implemented as a security standard by other leading communication services. In addition to classic encrypted text messaging, core features include high-definition voice and video calls, group chats, and the secure transfer of files, photos, and videos on mobile devices and desktop systems. As a non-profit organization, Signal completely avoids advertising, tracking, and affiliate marketing. Funding is generated exclusively through donations. With around 40 million active monthly users, the platform is particularly established among privacy-conscious users, journalists, and NGOs. In terms of compliance, Signal is designed to be GDPR-compliant (privacy-by-design), but does not offer HIPAA compliance for the medical sector, as no Business Associate Agreement (BAA) is signed.
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Data Privacy & Security
End-to-End Encryption
User-Friendliness
Feature Set
Customer reviews for Signal Messenger are highly positive overall, highlighting its strong data privacy, end-to-end encryption, and ad- and tracking-free user experience. The main weaknesses mentioned are the mandatory phone number requirement, occasional issues with device transfers, and recovery/backups. Signal is particularly suitable for users who prioritize maximum privacy and secure communication over convenience features or anonymous registration.
AI-generated summary
With its latest product updates, Signal Messenger is increasingly focusing on expanding privacy and optimizing for professional users. The introduction of usernames allows users to communicate without revealing their phone numbers, significantly improving the protection of sensitive contact details in business environments. In addition, group call features have been expanded to make digital collaboration in teams more secure and flexible. These innovations underscore Signal's positioning as a privacy-compliant communication solution for companies and organizations.
Source: Publicly available product updates or press releases from Signal Messenger.
No social media mentions or data were provided for the analysis of Signal Messenger. Due to this lack of data, a qualitative evaluation of topics, praise, criticism, or open questions is not possible. Therefore, a differentiated sentiment profile cannot be generated.
Source: Publicly available social media posts (X/Twitter, LinkedIn, Reddit) from the last 12 months. The opinions shown come from users and do not represent BenchTrust's assessment.