Primary Venture Partners

Activity from announced rounds

Activity in this selectionUnited States · Oct 9, 2026 · Sep 10, 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
0
All roles disclosed
New companies
1
First participation on record · 0 follow-on
Funding in participating rounds
$70M
1 disclosed · full round size, not this investor’s share

By stage

Series C+1

By primary sector

Healthtech1

By country

United States1

Rounds

1 in this selection
Inspiren

Inspiren equips senior-living communities with connected devices and software that help staff prevent falls and coordinate resident care.

$70MSeries C
Participant