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Trail of Bits

Elite security research firm specializing in source code review, blockchain auditing, and building industry-standard open-source security tools.

Featured in: Best Cloud Pen Testing Providers

Founded
2012
Team Size
51-200
Geography
Global
Last verified: Apr 2026

Key facts

  • Founded in 2012.
  • Headquartered in New York, New York, United States.
  • Team of 51-200 security professionals.
  • Holds OSCP Employer accreditation.
  • Delivers 6 penetration testing services.
  • Typical response time: 2-4 weeks.
  • Operates globally, with delivery across North America.
  • Specialises in Source Code Audit, Blockchain Security, and Smart Contract Auditing.
  • Compliance expertise across SOC 2 and NIST CSF.

About

Trail of Bits is a highly specialized cybersecurity research and consulting firm headquartered in New York City, widely regarded as one of the foremost authorities on software assurance, source code review, and blockchain security. Founded in 2012 by Dan Guido, the company has built an extraordinary reputation for deep technical analysis that extends far beyond traditional penetration testing into the realm of formal verification, program analysis, and cryptographic review.

Compliance Expertise

Best For

EnterpriseStartup

Methodologies

OWASPPTES

Team Activity

Active in CTF competitions (Multiple alumni from top CTF teams)
Speaker: Black Hat
Speaker: DEF CON
Speaker: Real World Crypto
Speaker: CCC
Open source: Slither
Open source: Echidna
Open source: Manticore
Open source: Medusa
Open source: Building Secure Contracts

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