Arthur
Arthur AI, Inc.
Arthur unites security, finance, and the teams shipping AI on one control plane for AI you can trust. Measure, monitor, and govern enterprise AI at scale.
arthur.ai · New York, NY
Funding event
The round itself, as filedInferred stageSeed
Sold of offered$2.7M of $6.0M
Filed2026-08-10
Days since filing55
- Exemption claimed
- Rule 506(b)
- First-ever Form D
- No
- Date of first sale
- 2026-07-21
Investors
No investors named: Form D does not list them
Officers on the filing
Names and roles as filed; addresses are never stored- Adam Philip WenchelExecutive Officer · Director · Promoter
- Theresia GouwDirector
- Jonathan LehrDirector
Health flags
Three flags, each with the raw inputs behind it · as of 2026-10-03UndersubscribedNot flagged44.5% sold2.4 months since first sale
Prior raiseNot flaggedPrior raise not known—
AmendedNot flaggedNo amendmentNo D/A on file
Open roles
On the employer's own careers page · checked 2026-09-242
Pre-posting windowNot enough dataShown once this sector and stage have 20 observed lags from filing to first posting.
- AI Security Product ManagerSEP 24New York City, USA · Product · FullTime · open 10 days
- Forward Deployed EngineerSEP 24Main (Hybrid) · Engineering · FullTime · open 10 days
Also raised in AI & data
Same sector, 28 days to 2026-10-04AscertaSeries A · $18.0M · Bellevue, WAQuietMireyePre-seed · $1.0M of $3.3M · San Bruno, CAQuiet
15 rounds in AI & data in the 28 days to 2026-10-03, against 24 in the 28 days before.