William Barthell net worth
Quick answer
William Barthell's estimated net worth is $8.0M (range $5.6M – $12.0M) as of 2026. William Barthell is CTO at Janet AI. Janet AI valuation.
William Barthell is CTO at Janet AI (YC S25). Independent Entrepreneurial Check model estimate from public YC data.
At a glance
- Company status: Active
- Region: United States of America
- Industries: B2B
- Team size: 4
- Website: https://janet.ai
Who is William Barthell?
William Barthell is a founder associated with Janet AI, part of Y Combinator's Summer 2025 batch.
About Janet AI
Janet AI is the autonomous product management system.
Janet listens to your Slack channels, email, iMessage, calendar, meetings, in-person conversations, GitHub, and coding agents to autonomously track, update, understand, resolve, and display your company’s work 24/7.
Janet AI is backed by Y Combinator, Formosa Capital, Paul Graham, Charles Ferguson, and others.
Check us out at janet.ai!
FAQ: William Barthell net worth and Janet AI valuation
What is William Barthell's net worth?
William Barthell's estimated net worth is $8.0M (range $5.6M – $12.0M) as of 2026. William Barthell is CTO at Janet AI. Entrepreneurial Check publishes an independent model-based estimate from public company and role data. Not verified net worth, and Entrepreneurial Check is not affiliated with Y Combinator or the profiled companies.
What is Janet AI valuation?
Janet AI's estimated valuation on Entrepreneurial Check is $20.0M. That valuation, or a disclosed round when one is public, is the source for the paper-wealth estimate. Independent model output — not a verified appraisal or official mark.
What is William Barthell's role?
William Barthell is CTO at Janet AI, a Y Combinator-backed startup (batch S25).