United States · 
Who invested in Windmill?
Windmill's investors include Founder Collective, Correlation Ventures, Primary Venture Partners, Play Ventures and Graph Ventures, and 2 more on record.
20252026
$5.0MSeries A$12MVenture
United States · Venture startup
Who invested in Windmill
Funding summaryUpdated 26 Oct 2026
$17Mraised across 2 rounds since 2024, from 2 sources
$5.0MSeries A$12MVenture
- Latest round
- Venture, $12MApr 2026
- Step-upi
- 2.4×
- Investors
- 7
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Series A, $5.0M Oct 2024
- Biggest round
- $12M Venture · Apr 2026
- Between rounds
- 18 months from the last two
The rounds
- Apr 2026
- Oct 2024
Who was in which round
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.
Quick answers about Windmill
How much has Windmill raised?
Windmill has raised $17M across 2 rounds since 2024.
When did Windmill last raise?
Windmill's most recent round was a Venture of $12M in Apr 2026.
What was Windmill's biggest round?
Its most recent round, $12M in Apr 2026, is also its largest on record.
Who backed Windmill first?
Windmill's first round on record, in Oct 2024, was backed by Play Ventures, Graph Ventures and Superangel.
What stage is Windmill at?
Windmill's latest named round is a Venture, in Apr 2026.
Where is Windmill based?
Windmill is based in the United States.
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