LEXFO is an offensive security firm that assesses and strengthens your systems with an expert, pragmatic, results-driven approach. We cover the full attack chain to better defend you: environment discovery and mapping, security audits and penetration testing, organizational audits, Red Team, code review, reverse engineering, incident response, data-leak monitoring, training and awareness, and analysis of embedded devices and set-top boxes. We provide CTEM (Continuous Threat Exposure Management) programs to continuously measure and reduce threat exposure, and we offer Pentest-as-a-Service through a dedicated platform : AMBIONICS. LEXFO holds PASSI qualification, is CESTI-approved, PRIS , referenced by ANJ and accredited to ISO/IEC 17025. These validations ensure audited, traceable, and recognized engagements—from diagnosis through remediation—so technical findings translate into prioritized, measurable resilience.
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The Lexfo annual revenue was $5 million in 2026.
Sébastien Chaudron is the Managing Director of Lexfo.
53 people are employed at Lexfo.
Lexfo is based in Paris, Île-de-France.
The NAICS codes for Lexfo are [541, 54, 541511, 54151, 5415].
The SIC codes for Lexfo are [737, 73].