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Cyber Security Startups in Tokyo

Discover 30 cyber security companies in Tokyo, Japan. See funding amounts, founders, and recent rounds.

Total Companies
30
Total Funding
$28.9M
Avg Funding
$5.8M

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Recently Funded Companies

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Cloud Data Services
$7.8M
raised

SecureNavi is an IT company that provides software development and automation tools for information security management systems.

Tokyo, Japan
Nov 2025

Founder Contacts

41,000+ verified contacts

$8.3M
raised

Trusted Japanese financial services provider leveraging a robust global distribution network for digital assets (crypto/stablecoins)

Tokyo, Japan
Nov 2025

Founder Contacts

41,000+ verified contacts

Cyber Security
$6.5M
raised

Japan Cyber Defense is a security-based company that protects national infrastructure and organizations against cyberattacks.

Tokyo, Japan
Nov 2025

Founder Contacts

41,000+ verified contacts

E-Signature
$4.5M
raised

Pocket Sign develops digital platforms that store e-signatures and other authentication details for it's users privacy and security.

Tokyo, Japan
Oct 2025

Founder Contacts

41,000+ verified contacts

Cyber Security
$1.7M
raised

GMO Flatt Security is a cyber security company that offers a custom-made diagnostic plan based on technology stack and budget.

Tokyo, Japan
Oct 2021

Founder Contacts

41,000+ verified contacts

Showing 26 to 30 of 30 companies

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