Back to directory
Cybersecurity AISeries BClear buyer pull

Arthur

Find every agent and govern its behavior.

Company snapshot

Stage
Series B
Funding
Series B · $42M · Sep 27, 2022
Status
published
Updated
Nov 4, 2026
Views
Website
arthur.ai

What they're building

Find every agent and govern its behavior. Arthur discovers enterprise AI agents and governs their behavior through shared inventories, execution traces, evaluations, runtime guardrails, and continuous risk monitoring.

Foundation model usage

Editorial estimates from product descriptions. Model providers and actual usage are not confirmed.

Inferred architecture
Agentic loops, Code generation
Estimated model demand
High intensity

NYC footprint

NYC presence
NYC company or team supported by public sources. Street address has not been verified.

Funding

Latest funding: Series B · $42M · Sep 27, 2022.

Sources & location evidence

Open research desk ↗

Profile source review: 2026-11-04. Current product positioning now foregrounds enterprise agent security and governance. Careers confirms a hybrid NYC office. A registry service-of-process address at 140 Crosby Street is not used as physical-office proof.

Location unresolved · verified office

Street address not public. Current occupancy not confirmed. Company careers confirms hybrid work at its NYC office. A service-of-process registry address at 140 Crosby Street is not sufficient for a pin.

Arthur - Careers ↗

Source checked 2026-11-03

Notes

Arthur is tagged clear buyer pull based on buyer clarity, repeat workflow activity, public activity, and fit with the AI Atlas map.

Related NYC startups

Teleskope

Agentic remediation for data security teams.

Teleskope discovers sensitive enterprise data and applies AI agents to investigate exposures, coordinate remediation, and help security teams resolve data risks.

Cybersecurity AISeries AWorkflow77views

Recent Activity

Added: deepens the data, memory, and research infrastructure layer. · May 18, 2026
Reality Defender

Evidence against convincing synthetic impersonation.

Reality Defender detects AI-generated and manipulated voices, video, and images, helping enterprises scrutinize calls, meetings, and submitted media before sensitive decisions.

Cybersecurity AIUnknownClear buyer pull

Recent Activity

· 2h ago
Pangram

Make the authorship of digital content legible.

Pangram trains detection models to identify AI-generated and AI-assisted writing and images, helping publishers, educators, and platforms assess content provenance across their workflows.

Cybersecurity AIGrowthWorkflow

Recent Activity

· 2h ago