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Signal Messenger

Cybersecurity · Indianapolis, United States · Founded 2013

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

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.

Keywords: Privacy, Messaging, Encryption, Nonprofit, Donations, Secure Communication, Independent, User-Friendly, No Ads, End-to-End Encryption.

Valuation $100–500M
Revenue $10–50M
Headcount 100–500
Total funding $50–100M
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Company overview

Signal Messenger company information

The essential company record, classifications and operating signals in one place.

Status
Operational
Founded
2013
Headquarters
Indianapolis, United States
Employees
108
Open positions
None listed
Dealroom signal
77.9
client focusb2ctechnologyMobile appsub industryDevice security & AntivirussectorCharitybusiness modelSaaSindustrySecuritysectorOpen SourceindustryTelecom

Valuation & funding

Signal Messenger funding history

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
ANGELOther financing Feb 2018 $50M $200M Brian Acton
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Financials

Revenue and workforce over time

Available revenue and workforce history. Fields without reported data are omitted.

YearRevenueGrowthEmployees
2026 $14M 0% 108
2025 $14M 0% 111
2024 $14M 0% 89
2023 $14M +80% 80
2022 $7.5M +87.5% 70
2021 $4M +29% 48
2020 $3.1M 35
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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%
Monthly website visits122 observations · Apr 2016–Jul 2026
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Comparisons

Signal Messenger compared with similar companies

Dealroom’s weighted taxonomy model identifies the closest operating peers. Company identity and context stay open; selected comparison metrics preview what is available in the platform.

Showing 8 of the closest matchesCompare every metric →

Talent graph

Signal Messenger's talent

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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.

Investors

1 investor on Signal Messenger's cap table

Sourced from Dealroom's funding and investor records.

Seed 1 investor entered at this stage
Brian Acton

Global footprint

Where Signal Messenger has talent and traffic

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

In the news

Latest news about Signal Messenger

Recent press, funding announcements, and product moves mentioning Signal Messenger — open to read from the original sources.

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Market sentiment

What the market is saying about Signal Messenger

An AI-synthesized read of the highest-engagement posts about Signal Messenger on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.

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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