Best AI Red Teaming CompaniesAn independent guide to AI red teaming vendors

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Scale AI

AI data and evaluation company with expert human red teaming

Human-led engagementsAutomated platformAgents and toolsFrontier model safety

Scale AI offers a red teaming and evaluation platform that simulates adversarial prompts and exploits, expert human red teaming for model developers, and research from its SEAL lab. Its red team scope covers jailbreaks, prompt injection, agentic misuse, cyber, CBRN and political bias. It has US government credentials as a CAISI evaluator and through a DoD CDAO testing agreement.

Best for: Model developers and government buyers who need large expert red teams.

49% owned by Meta (non-voting stake, Jun 2025; about $14.3B reported)

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

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

1 Legal nameScale AI
2 HeadquartersSan Francisco, CA, USA
3 Founded2016
4 TeamNot disclosed
5 What they testFoundation models, LLM apps, Agents and tool use, Prompt injection and jailbreaks, Frontier safety (CBRN, cyber), Bias and harms, Multimodal
6 FrameworksNot disclosed
7 CertificationsNot disclosed
8 Published pricesNot disclosed
9 Customers and partnersFirst third-party evaluator authorized by the U.S. AI Safety Institute, now CAISI (Feb 2025). Holds a DoD CDAO agreement expanded to a $500M ceiling (May 2026). Meta is a shareholder and customer.

Where we recommend them

Worth knowing before you sign

  • Conflict of interest: Meta owns 49% and Scale’s former CEO now leads Meta’s AI work; Reuters reported Google planned to cut ties.
  • Worker lawsuits over contractor pay, classification and exposure to traumatic content.
  • Its old red teaming page now returns 404; the offering is spread across Evaluation and SEAL pages.

Go to Scale AI's site

Sources

  1. Business Wire: Meta investment
  2. Vendor: public sector evaluation
  3. Vendor: US AISI evaluator
  4. FedScoop: AISI selection
  5. Vendor: CDAO $500M agreement
  6. The Register: worker lawsuit

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

Compare with

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  • HiddenLayer AI security platform with automated red teaming and model scanning
  • Trail of Bits Security research consultancy with an AI/ML assurance practice
  • Pillar Security Agent security platform with agentic red teaming