agentsastLast reviewed 2026-09-13

Trail of Bits

Direct answerTrail of Bits built Buttercup, the AIxCC runner-up, and has reorganised its audit practice around AI: it reports 15 to 200 AI-surfaced candidate bugs per week on suitable engagements, about 20 percent of reported findings first surfaced by AI, every one validated by an auditor, and publishes 201 skills and 94 plugins as open source. It has a cryptography and ZK practice.
Website
https://www.trailofbits.com
Headquarters
New York, United States
Focus
AI-native security practice: Buttercup, 201 open-source skills, about 20 percent of reported bugs first surfaced by AI, all human-validated
Index position
#2 of 12
Founded
2012

Services

Tools this firm builds or uses

Buttercup.

Public evidence

Best fit

Choose Trail of Bits for a broad AI-assisted audit of C, Rust and application code with a strong cryptography bench.

Other firms on this index

zkSecurity, Zellic, Nethermind Security, Sherlock, Cantina (Spearbit), Consensys Diligence, Cyfrin, OpenZeppelin, QuillAudits, Certora, Veridise