Endpoint security and managed detection and response for enterprises, now part of LevelBlue.
🇺🇸 La Jolla, California, USA (Japan office: Kyobashi, Chuo-ku, Tokyo) · Founded 2012 · 201–1,000 people
Cybereason is a cybersecurity company founded in 2012. It provides endpoint detection and response, next-generation antivirus, extended detection and response, and managed security services for enterprises. LevelBlue, a managed security services provider based in Dallas, completed its acquisition of Cybereason in November 2025. In Japan it operates as Cybereason G.K., with a head office in Tokyo and branches in Osaka and Nagoya.
The Japan site has a recruiting page that points candidates to the company's global job listings.
Endpoint detection and response and next-generation antivirus that detect attacks in real time.
Who it's for: Enterprises
Extended detection and response platform.
Who it's for: Enterprises
Managed detection and response, incident response and security assessments.
Who it's for: Enterprises
Enterprises that need endpoint protection and managed detection and response.
The Japan site states that Cybereason holds the number one share of the EDR market in Japan. LevelBlue completed its acquisition of the company on November 25, 2025.