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Bugcrowd

Crowdsourced security platform with AI pen testing and bias assessments

Human-led engagementsAgents and toolsCrowdsourced

Bugcrowd sells AI penetration testing of LLM apps by vetted pentesters, able to start within 72 hours, and AI bias assessments run as private reward-for-results crowd engagements. It rates AI findings with its own Vulnerability Rating Taxonomy, which includes LLM categories, and maps to OWASP LLM Top 10 and MITRE ATLAS. It bought Mayhem Security, an AI offensive testing company, in Nov 2025.

Best for: Fast-start AI pen tests and bias testing by a vetted crowd.

$102M growth round led by General Catalyst (2024)

  • ✓ Maps to OWASP
  • ✓ Maps to MITRE ATLAS
  • – Maps to the EU AI Act
  • – SOC 2 or ISO 27001
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Facts checked November 9, 2026 against the sources listed below. Bugcrowd does not pay to appear here.

1 Legal nameBugcrowd
2 HeadquartersNot disclosed
3 FoundedNot disclosed
4 TeamNot disclosed
5 What they testLLM apps, Agents and tool use, RAG, Prompt injection and jailbreaks, Data leakage, Bias and harms, Foundation models
6 FrameworksOWASP LLM Top 10, MITRE ATLAS, Bugcrowd VRT (AI and LLM categories)
7 CertificationsCREST (pentest as a service)
8 Published pricesNot disclosed
9 Customers and partnersRan the U.S. DoD CDAO’s public AI Bias Bounty (2024). Hosts OpenAI’s security bug bounty, which excludes jailbreaks and model safety. Testimonials from BeeBole, Softdocs and ActiveCampaign.

Where we recommend them

Worth knowing before you sign

  • The OpenAI bounty covers security bugs only, so it is not evidence of model red teaming.
  • No AI-specific case studies on the AI pen test page; testimonials are generic.

Go to Bugcrowd's site

Sources

  1. Vendor: AI pen test
  2. Vendor blog: AI penetration testing
  3. Vendor: AI bias assessment
  4. ExecutiveGov: CDAO AI bias bounty
  5. SiliconANGLE: Mayhem acquisition

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

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