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Trail of Bits

Security research consultancy with an AI/ML assurance practice

Human-led engagementsAgents and toolsFrontier model safety

Trail of Bits has done security research since 2012 and describes itself as independent. Its AI/ML assessments cover training data, MLOps pipelines, model artifacts, inference hardware and deployed agent loops, plus offensive and defensive cyber capability evaluations of models. Clients keep the evaluation and adversarial harnesses built during the engagement.

Best for: Deep technical reviews of models, ML pipelines and agents, beyond prompt-level testing.

Independent; no outside funding disclosed

  • – Maps to OWASP
  • – Maps to MITRE ATLAS
  • – Maps to the EU AI Act
  • – SOC 2 or ISO 27001
Visit Trail of Bits

Facts checked November 9, 2026 against the sources listed below. Trail of Bits does not pay to appear here.

1 Legal nameTrail of Bits
2 HeadquartersNew York, NY, USA (mailing address)
3 Founded2012
4 TeamNot disclosed
5 What they testLLM apps, Agents and tool use, Prompt injection and jailbreaks, Data leakage, Model supply chain, Foundation models, MCP servers
6 FrameworksNot disclosed
7 CertificationsNot disclosed
8 Published pricesNot disclosed
9 Customers and partnersLists public engagements with OpenAI and Google (Sep 2026), a frontier model offensive capability assessment for the UK Frontier AI Taskforce, and a Safetensors review for Hugging Face and EleutherAI. Placed 2nd ($3M) in DARPA’s AI Cyber Challenge.

Where we recommend them

Worth knowing before you sign

  • No mapping to OWASP LLM Top 10, MITRE ATLAS or NIST AI RMF stated on its AI/ML page.
  • No published certifications such as SOC 2 or CREST found.

Go to Trail of Bits's site

Sources

  1. Vendor: AI/ML services
  2. Vendor: about
  3. Vendor blog: AIxCC 2nd place
  4. NYU Engineering: AIxCC result

Work at Trail of Bits? Send corrections with a source to editors@bestairedteamingcompanies.com. We fix verified errors within five business days.

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