Primary Venture Partners

Activity from announced rounds

Activity in this selectionJan 31, 2026 · Jan 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
$11M
1 disclosed · full round size, not this investor’s share

By stage

Seed1

By primary sector

Developer tools1

By country

United States1

Rounds

1 in this selection
Haiqu

Builds software to optimise quantum hardware

$11MSeed
Role not disclosed