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Mandiant

World-renowned cybersecurity firm now part of Google Cloud, delivering threat intelligence-led penetration testing and red teaming informed by front-line incident response experience.

Featured in: Best Red Teaming Companies

APT Intelligence LeaderTIBER-EU SpecialistCBEST TestingGoogle Cloud SecurityNation-State Emulation
Founded
2004
Team Size
500+
Geography
Global
Last verified: Feb 2026

About

Mandiant, now part of Google Cloud, is one of the world's most recognized cybersecurity firms, headquartered in Reston, Virginia, with an unrivaled reputation in incident response, threat intelligence, and adversary simulation. Founded in 2004 by Kevin Mandia, the company became globally famous for their APT1 report that publicly attributed cyber espionage campaigns to the Chinese military, fundamentally changing how the world understood nation-state cyber threats.

Mandiant's red team and penetration testing services are informed by the company's front-line experience responding to hundreds of major breaches annually, giving their testers unique insight into how real adversaries operate. Their services include red teaming, purple teaming, penetration testing, assumed breach assessments, and intelligence-led adversary simulation aligned with frameworks like TIBER-EU and CBEST. Mandiant's team includes some of the most experienced incident responders and red teamers in the world, many with backgrounds in military and intelligence organizations.

The integration into Google Cloud has added massive scale and resources while maintaining the operational excellence that made Mandiant famous. The company serves Fortune 500 companies, governments, and critical infrastructure operators globally with their Mandiant Advantage platform providing continuous threat intelligence.

Methodologies

NISTPTESTIBER-EUCBESTOWASP

Team Activity

Active in CTF competitions
SC Awards Best Threat Intelligence
Gartner Magic Quadrant Leader
Speaker: Black Hat
Speaker: RSA Conference
Speaker: Mandiant mWISE
Speaker: SANS Summit

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