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COMPANY PROFILE

Signal Messenger

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Encrypted communications application for android and ios that focuses on advancing secure communications

San Francisco, United StatesFounded 2013Cybersecurity
Valuation $250–500M Last recorded · 2018
Revenue $10–50M Latest reported FY
Headcount 100–500 Current team size
Total funding $50–100M Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Signal Messenger and the history behind them.

About Signal Messenger

Signal.org is a startup that operates in the digital communication market, offering a unique messaging platform with a strong focus on user privacy. It provides a simple, powerful, and secure messenger service that uses state-of-the-art end-to-end encryption, ensuring that no one, not even Signal itself, can read users' messages or listen to their calls. This privacy-focused approach is not an optional feature but is integrated into the very fabric of Signal's operations.

Signal's primary clientele includes individuals and groups who value their privacy and are looking for a secure way to communicate. This could range from everyday users to professionals who handle sensitive information. The platform offers features such as voice and video calls, group chats, and encrypted stickers, all without any long-distance charges.

Unlike many other tech companies, Signal operates as an independent nonprofit, meaning it is not beholden to any major tech companies and cannot be acquired by one. It does not generate revenue through ads or affiliate marketing, and it does not engage in any form of user tracking. Instead, its operations are funded by grants and donations from its user base and other supporters.

In summary, Signal.org is a privacy-centric messaging platform that offers secure, encrypted communication services to its users. It operates as a nonprofit, relying on grants and donations for funding rather than traditional revenue streams like advertising or data selling.

Source: Dealroom company data

At a glance

Status
Operational
Founded
2013
Headquarters
San Francisco, United States
Employees
108
Open positions
None listed
Dealroom signal
77.9/100
Industry
Security, Telecom
Sub-industry
Device security & Antivirus
Sector
Cybersecurity, Charity, Open Source
Technology
Mobile app
Business model
SaaS
Client focus
b2c

Funding history

1 recorded event

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
ANGELOther financing Feb 2018 $50M $200M Brian Acton ↗
Showing the latest 1 of 1 recorded eventsBook a demo for the full funding history →

Financials

Revenue over time

Revenue, earnings and other financial measures where available. Years marked “E” are estimates.

YearRevenueGrowth
2026
2025
2024
2023
2022
2021
2020 —
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Growth signals

Signal Messenger website traffic

Latest recorded traffic for Signal Messenger is 2.7M monthly website visits, up 3.8% over the last three months. Signal Messenger's team declined 2.7% over the past year.

Latest monthly visits2.7M 3-month web change+3.8% 1-year team growth-2.7%
Summary metrics are public; monthly history is available with a demoCompare with peers →

Similar companies

Closest operating peers by Dealroom taxonomy

Company identity and context are open; selected comparison metrics preview what is available on the platform.

Showing 8 of the closest matchesCompare every metric →

Investments and acquisitions

Capital deployed

Recent portfolio relationships for companies that also act as investors or acquirers.

Investors

1 investor on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Seed1 investor entered at this stage

  • Brian Acton
Team profiled 16 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 2 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
7 countries with
team presence
🇺🇸 United States84.3%
🇩🇪 Germany3.9%
🇨🇦 Canada3.9%
🇮🇳 India2%
🇦🇷 Argentina2%
Top 5 of 7 shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Signal Messenger on X, ranked by likes and reposts, corporate channels excluded.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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