Best AI Red Teaming Companies

Independent comparison. Some vendor buttons may use referral links; vendors never pay for placement or ordering. Read the disclosure.

Last updated: . Facts are vendor claims checked on that date; nothing was tested independently.

Repello AI (ARTEMIS)

A red-teaming-first platform with explicit multimodal (text, image, audio) and MCP/RAG coverage.

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Fact block

Official site
repello.ai
Headquarters
Not stated (a Dover, DE address is shown, which looks like a registered agent)
Ownership
Independent
Offering type
Automated platform
Delivery model
Automated red-teaming platform (ARTEMIS) with a companion guardrails product (ARGUS).
What it tests (claimed)
Prompt injection; Jailbreaks; Data leakage; Agent / tool abuse; Multimodal; Agents, MCP and RAG; Text, image and audio
Framework mappings (claimed)
OWASP LLM Top 10, NIST AI RMF, MITRE (ATLAS not named)
Pricing public?
No. Not public; a free red-teaming scan for agents is offered.
Free tier
Unclear. A free red-teaming scan for agents is offered; scope not stated.

What it tests

Claimed on the vendor's own pages. Nothing here was tested independently.

Framework mappings

OWASP LLM Top 10, NIST AI RMF, MITRE (ATLAS not named). The site says "MITRE" without naming ATLAS.

Offering

Pricing

Not public. Not public; a free red-teaming scan for agents is offered. Free tier: unclear. A free red-teaming scan for agents is offered; scope not stated. See what AI red teaming costs.

Ownership history

Independent.

Alternatives

Three vendors with a similar offering type and overlapping coverage. Chosen by category and claimed coverage, then alphabetically; no ranking is implied.

Sources

  1. Repello AI site: https://repello.ai/