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Bishop Fox

Offensive security firm with an AI and LLM pen testing service

Human-led engagementsAgents and toolsCompliance mapping

Bishop Fox’s AI and LLM Security Assessment tests AI systems and the infrastructure around them for prompt injection, data leakage and access-control gaps. It runs as a standalone test or inside red and purple team scenarios, such as social engineering of DevOps staff or cloud pivots to model artifacts. It maps to OWASP LLM and Agentic Top 10, MITRE ATLAS and the EU AI Act.

Best for: Testing an AI app as part of a full attack path, not in isolation.

$129M Series B extension (Nov 2022), over $154M lifetime

  • ✓ Maps to OWASP
  • ✓ Maps to MITRE ATLAS
  • ✓ Maps to the EU AI Act
  • – SOC 2 or ISO 27001
Visit Bishop Fox

Facts checked November 9, 2026 against the sources listed below. Bishop Fox does not pay to appear here.

1 Legal nameBishop Fox
2 HeadquartersArizona, USA
3 Founded2005
4 TeamNot disclosed
5 What they testLLM apps, Agents and tool use, RAG, Prompt injection and jailbreaks, Data leakage, Model supply chain
6 FrameworksOWASP LLM Top 10, OWASP Agentic Top 10, MITRE ATLAS, EU AI Act, OWASP Machine Learning Top 10
7 CertificationsNot disclosed
8 Published pricesNot disclosed
9 Customers and partnersFeatures a Ventrilo.ai customer story. Other logos on the page (UKG, Zoom, Sonos and more) are general clients, not confirmed AI work.

Where we recommend them

Worth knowing before you sign

  • Customer logos on the AI page are general clients, not confirmed AI engagements.
  • Its OpenAI partner directory page could not be read, so that relationship is unverified.

Go to Bishop Fox's site

Sources

  1. Vendor: AI and LLM security assessment
  2. Vendor: AI/LLM testing datasheet
  3. Carrick Capital: Series B extension
  4. CB Insights: company profile

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

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