Trail of Bits: post-quantum cryptography audit services
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Trail of Bits is a security research and consulting firm with a cryptography practice that audits protocols and implementations, including post-quantum ones. In 2026 it added ML-KEM and ML-DSA support to pyca/cryptography with funding from the Sovereign Tech Agency.

Website: https://www.trailofbits.com
Headquarters: New York, United States
Focus: Software assurance with a dedicated cryptography practice
Post-quantum services: Cryptographic implementation and protocol reviews | Post-quantum library implementation (pyca/cryptography ML-KEM and ML-DSA, 2026) | Static and dynamic analysis tooling for cryptographic code
Evidence: https://trailofbits.com/services/software-assurance/cryptography | https://blog.trailofbits.com/2026/06/30/shipping-post-quantum-cryptography-to-python/

Source page: https://pqaudit.org/auditors/trail-of-bits/
Compiled by: PQC Audit Index editors (https://pqaudit.org/about/)
Last reviewed: 2026-09-12