Ruben Fiszel net worth
Quick answer
Ruben Fiszel's estimated net worth is $20.0M (range $14.0M – $30.0M) as of 2026. Ruben Fiszel is Founder at Windmill. Windmill valuation.
Ruben Fiszel is Founder at Windmill (YC S22). Independent Entrepreneurial Check model estimate from public YC data.
At a glance
- Company status: Active
- Region: France
- Industries: B2B, Infrastructure
- Team size: 7
- Website: https://windmill.dev
Who is Ruben Fiszel?
Ruben Fiszel is a founder associated with Windmill, an organization that participated in Y Combinator's Summer 2022 batch.
About Windmill
Windmill is an open-source developer platform that turns scripts into workflows, internal tools, and full-stack apps.
Write scripts in Python, TypeScript, Go, Bash, Rust, SQL - Windmill auto-generates UIs from their parameters, handles dependencies, credentials, permissions, and scheduling so you focus on business logic, not infra.
Open-source alternative to Airflow, Temporal, Retool and n8n. Chain scripts into...
FAQ: Ruben Fiszel net worth and Windmill valuation
What is Ruben Fiszel's net worth?
Ruben Fiszel's estimated net worth is $20.0M (range $14.0M – $30.0M) as of 2026. Ruben Fiszel is Founder at Windmill. 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 Windmill valuation?
Windmill'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 Ruben Fiszel's role?
Ruben Fiszel is Founder at Windmill, a Y Combinator-backed startup (batch S22).