Windmill
Builds AI-native HR tools, specifically a context graph for workforce management
$12MSeed
Role not disclosedPV
Primary Venture Partners
Activity from announced rounds
Activity in this selectionUnited States · Apr 30, 2026 · Apr 1, 2026
Primary Venture Partners is the investment firm named by Windmill and as seed lead by Zero’s founder.
Recorded funding activity
Zero develops customer-management tools for startup revenue teams. Other activity includes Inspiren’s care-coordination systems and Etched’s inference hardware. The firm history preserves these separate company events.
Sources
- Rounds participated in
- 1
- Confirmed lead rounds
- — 1 roles undisclosed
- New companies
- 1 First participation on record · 0 follow-on
- Funding in participating rounds
- $12M 1 disclosed · full round size, not this investor’s share