
Best Cybersecurity Companies in Japan
Ranked top 10 below, plus more Japan-based listings on the same page. For the full directory, browse all products in Japan.
Top 10
Highest-ranked listings from Japan by reviews, ratings, and editorial signals.
Yokogawa Electric

Industrial Control System Security
Yokogawa Electric Corp is an electrical engineering and software company providing measurement, control, and information technologies including industrial cyber security. Plant Security Consulting Se
Capy

Security Operations
Capy's SaaS-based security solutions will protect your website from bots, spam, humans and more. Our security lineup includes: Puzzle & Avatar CAPTCHA, Realtime IP Blacklist, & Riskbase Authentication
Fujitsu

Compliance Consulting
Fujitsu is a global leader in digital services that transform organizations and the world around us. We aim to make the world more sustainable by building trust in society through innovation. We tak
GMO Cyber Security

Compliance Consulting
GMO Cyber Security is an information security company that focuses mainly on vulnerability diagnosis. It is Japan's leading white hat hacker organisation. We have a menu of white hat hackers who spec
Caulis

Security Operations
Caulis FraudAlert is a cyber security solution. It can detect fraud and identity theft based on users’ online behaviour. When our system detects unusual behaviour from individual users, it notifies t
Cybertrust Japan

Industrial Control System Security
Cybertrust Japan provides a comprehensive security certification and digital authentication service, enabling customers to build and manage highly secure IT infrastructures. Certification Authority &
About Japan Cybersecurity Companies
Japan has a strong bench of cybersecurity vendors. Rankings here mix expert write-ups, user ratings, and the product fields we track on each listing.
Ranking Criteria
- Expert reviews and ratings
- User feedback and reviews
- Feature completeness
- Enterprise readiness
Updated Monthly
Our rankings are updated monthly to reflect the latest product information, user reviews, and market changes.