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Your team communication: Absolutely confidential, fully encrypted.
Signal Messenger is a leading global provider of highly secure, encrypted communication founded in 2013 and 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. Comparable with other software providers.
BenchTrust Index weighting: Company stability 25 points · Customer reviews 30 points · Compliance & security 25 points · Transparency 20 points. Without reviews a neutral average is used; a few reviews move it only slightly
Review data basis: G2 (453)
BenchTrust takes the average rating and review count from the review platforms listed. BenchTrust does not itself verify whether individual reviews come from actual customers; according to the platforms, they apply their own verification procedures.
Headquarters
3000 16th St, 94103-3403 San Francisco, United States
Employees
50
Founded
2013
Management
Meredith Whittaker
Signal Messenger is a leading global provider of highly secure, encrypted communication founded in 2013 and 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 sending 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 comes exclusively from 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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Answers are based on the website and documents of Signal Messenger.
Data Privacy & Security
End-to-end encryption
User friendliness
Feature set
Customer reviews of Signal Messenger are overall highly positive, particularly highlighting the strong data privacy, end-to-end encryption, and the ad- and tracking-free user experience. The main weaknesses mentioned are the mandatory phone number, occasional issues with device transfers, and recovery or backups. Signal is particularly suitable for users who prioritize maximum privacy and secure communication over convenience features or anonymous registration.
AI-generated summary
BenchTrust takes the average rating and review count from the review platforms listed. BenchTrust does not itself verify whether individual reviews come from actual customers; according to the platforms, they apply their own verification procedures.
Signal Messenger is increasingly focusing its latest product updates on expanding privacy and optimizing for professional users. With the introduction of usernames, users can now 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 reinforce Signal's positioning as a privacy-compliant communication solution for businesses and organizations.
Source: Publicly available product updates or press releases from Signal Messenger.