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Quad9 Logo
Quad9 Growth Score
46
CB Rank
548670
Heat Score
36
Quad9 is a security solution company that uses DNS to protect your system against the most common cyber threats.
Founded
obfuscation
Private Zürich, Zurich, Switzerland11-50 www.quad9.net
Internet
Network Security
Security
Overview

Quad9
Growth Score
46
Heat Score
36

Growth Score46
-12 pts
in past quarter
Heat Score 36
-5 pts
in past quarter

Company Performance Metrics

Score
Trend
AI Content may contain mistakes and is not legal, financial or investment advice.Learn more.
Growth Score - The measure of growth based on company activity, operational metrics, and investments
Growth Trend - The change in the growth score over the given time period
Heat Score - The measure of the market interest, media activity, and Crunchbase profile activity
Heat Trend - The change in the heat score over the given time period
Learn More >
Recent Milestones
Raised Funding Round
Jan 1, 1970
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Raised Funding Round
Jan 1, 1970
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Raised Funding Round
Jan 1, 1970
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See more interactive data and historical milestones on desktop for the best experience

About Quad9

CB Rank
548670
Quad9 is a security solution company that uses DNS to protect your system against the most common cyber threats.
Founded
obfuscation
Private Zürich, Zurich, Switzerland11-50 www.quad9.net
Internet
Network Security
Security

Key People

  • Photo of Nadia Alter
    Nadia Alter: Chief Executive Officer
    Past Role: The Science Fiction Economics Lab, Principal Co-founder

Details

Operating Status Active
Company Type For Profit
Phone Number 415-831-3129
Contact Email info@quad9.net
Predictions & Insights

Growth Prediction

See this Growth Prediction
Top Contributing Factors
Key Employee Changes

Products & Services

Quad9 DNS Security Service
A free recursive DNS service that blocks access to malicious domains to protect devices from cyber threats while preserving user privacy.

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Financials
Market Intelligence
People
View Profiles & Contacts
Headcount 11-50 Employee Profiles 1 Contacts 6

Employee Profiles

News

News and Press

News•Jan 14, 2026
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News•Dec 12, 2025
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News•Dec 12, 2025
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News•Nov 11, 2025
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Access a complete feed of recent news and press, from product launches to leadership changes.
Technology
View Tech Report

Monthly Web Visits

241,065
-16.99%
 in past month

IT Spend

$749.4KThis year, Quad9 is projected to spend $749.4K on IT, according to Aberdeen.

Active Website Tech Count

35Quad9 is actively using 35 technologies for its website, according to BuiltWith. These include IPhone / Mobile Compatible, HSTS, and  Apple Mobile Web Clips Icon.

Total IP

6Quad9 has registered 6 trademarks with the most popular class being 'Scientific and technological services', according to IPqwery.
Sub-Organizations
Frequently Asked Questions

Where is Quad9's headquarters? Quad9 is located in Zürich, Zurich, Switzerland.Who are Quad9's competitors? Alternatives and possible competitors to Quad9 may include Cloudflare, DNSFilter, and  Norton.
Who We Are
What We Do
Helpful Links
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