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Windmill

YC S22

Paris, FR · Founded 2022 · 7 employees · Hiring · 5 known investors

Windmill is a platform for building, deploying, and orchestrating internal software including scripts, workflows, and applications across teams. It supports multiple languages and provides governance, observability, and enterprise-grade security features for organizations managing business-critical automation at scale.

Also known as Windmill.dev

Cloud ComputingData & InfrastructureDeveloper ToolsEnterprise SoftwareSaaSB2BWorkflow AutomationOpen SourceFranceEuropePartly Remote

Founders & leadership· Y Combinator alumni (S22)

Windmill was founded in 2022 by Ruben Fiszel.

RFRuben Fiszel
Ruben FiszelinFounderRuben studied computer science at EPFL and conducted research on compiler design at Stanford. He has experience building distributed systems at Palantir, leading engineering at a multi-party computation startup, and contributing open-source projects. He now leads Windmill, an open-source workflow automation platform.

Investors · 5

Founder CollectiveCambridge
Y CombinatorSan Francisco · $500K
Inspired Capitalreported · 2 sourcesNew York · $500K – $20M
Oceans Venturesreported · 2 sourcesNew York · $1.3M
Primary Venture Partnersreported · 2 sourcesNew York · $1M – $3M

Funding

SEC filings, press & company announcements

$24M disclosed across 2 rounds · 2026

Source: company announcements and press reports — follow each round's link for the claim.

Images

Windmill photo

Competitors · 4

by search overlap
refine269 shared keywordsRefine is an open-source web application framework that helps organizations build web applications faster with fewer resources. The company develops the open-core framework and related ecosystem products.
Netezza191 shared keywordsIBM is a global technology company whose business spans enterprise software (including Red Hat, HashiCorp, and Confluent), IT infrastructure such as mainframes, servers, and storage, and IT consulting services. The company is also investing heavily in quantum computing and AI-based enterprise offerings, including its Lightwell open-source software security clearinghouse and the Anderon quantum wafer foundry.
Atlassian139 shared keywordsAtlassian offers a teamwork platform combining project planning, knowledge management, and AI orchestration tools for teams and their AI agents. Its products help organizations plan, execute, and deliver work at scale.
DataCamp135 shared keywordsDataCamp is a learning platform for teams that teaches data and AI skills through hands-on coursework accessible via web browser and mobile app. It serves enterprise customers and development teams seeking to build technical capabilities.

Companies competing with Windmill for the same Google search keywords, organic and paid, via search-intersection analysis.

In the news

Windmill Raises $12M to Build AI Context Graph Platformsci-tech-today.com · Apr 2026Windmill Raises $12M for Workforce Intelligence AIinforcapital.com · Apr 2026Windmill Raises $12M to Build AI Infrastructure for Workforce Context and Performance Intelligence | citybizcitybiz.co · Apr 2026Exclusive: HR tech startup Windmill raises $12Maxios.com · Apr 2026Windmill, the AI Company That Bets on Humans, Raises $12Mprnewswire.com · Apr 2026Windmill Raises $12M in Fundingfinsmes.com · Apr 2026Windmill: Turn scripts into internal apps and workflowsycombinator.com · Aug 2022

Frequently asked questions

What does Windmill do?
Windmill is a platform for building, deploying, and orchestrating internal software including scripts, workflows, and applications across teams. It supports multiple languages and provides governance, observability, and enterprise-grade security features for organizations managing business-critical automation at scale.
Who founded Windmill?
Windmill was founded by Ruben Fiszel in 2022.
Who are Windmill's investors?
Windmill's investors include Founder Collective, Y Combinator, Inspired Capital, Oceans Ventures, Primary Venture Partners.
How much funding has Windmill raised?
Windmill has disclosed $24M raised across 2 rounds.
Where is Windmill headquartered?
Windmill is headquartered in Paris, FR.