# Arthur AI

Arthur is an AI governance platform for enterprises. It discovers AI agents running on endpoints, in cloud and in private data centers, including unregistered shadow agents, and shows each agent's reasoning steps, tool calls and retrieval. It enforces policies, provides evals and runtime security with anomaly alerting, and tracks token costs by team.

Page: https://slateindex.ai/brand/arthur-ai · data of 2026-11-02

## Facts

- Founded: 2018
- Headquarters: New York City, New York, United States
- Employees: 11–50
- Company type: Private, venture-backed
- Latest funding: Series B
- Deployment: Multi-tenant SaaS, single-tenant SaaS, dedicated or managed VPC, self-managed, cloud or on-prem
- Best for: Enterprise security, audit, governance, engineering and product teams that need to find, control and ship AI agents and models
- Compliance: SOC 2 Type II

## Products

- Arthur Governance: Agent discovery across endpoints, cloud and on-prem, with step-level traces and global and use-case policy enforcement.
- Arthur Runtime Security: Guardrails and security policies with Agent Behavioral Analytics that alerts on anomalous behavior and streams findings to SOC tools.
- Arthur Evals Engine: Open-source real-time AI evaluation engine with PII, sensitive data, custom LLM and regex rules that runs locally.
- Arthur Shield: LLM firewall that detects PII leakage, hallucinations, prompt injection and toxicity, deployable as SaaS or on-premises.

## Rankings

| Category | Rank | Visibility | Mentions |
|---|---|---|---|
| MLOps Platforms | 58 of 61 | 0.0 | 0 |

## By engine

| Engine | Visibility | Mention rate |
|---|---|---|
| chatgpt | 0.0 | 0.0% |
| google_ai_mode | 0.0 | 0.0% |
| perplexity | 0.0 | 0.0% |

## Definitions

- Visibility (0–100): how often and how high AI answers name the brand, weighted by position.
- Mention rate: share of collected AI answers that name the brand.
- Share of voice: the brand's mentions as a share of all brand mentions in the category.
- Citation authority: share of answers naming the brand that cite the brand's own site.

Cite as: SlateIndex, “Arthur AI AI visibility profile”, https://slateindex.ai/brand/arthur-ai, data of 2026-11-02. Licence: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/).