Primary Venture Partners

Activity from announced rounds

Activity in this selectionUnited States · Oct 9, 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
8
Confirmed lead rounds
0
6 roles undisclosed
New companies
8
First participation on record · 0 follow-on
Funding in participating rounds
$1.2B
8 disclosed · full round size, not this investor’s share

By stage

Seed3
Series C+3
Series A2

By primary sector

Enterprise software2
Fintech2
Defense tech1
Developer tools1
Hardware1
1 more
Healthtech1

By country

United States8

Rounds

8 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
Etched

Designs AI inference hardware systems combining specialized chips, racks and software.

$700MSeries D
Participant
Windmill

Builds AI-native HR tools, specifically a context graph for workforce management

$12MSeed
Role not disclosed
Fuse

Develops AI-native loan origination system for lenders

$25MSeries A
Role not disclosed
Multitude Insights

Provides a secure AI-powered intelligence sharing platform for law enforcement to distribute and analyze bulletins

$10MSeries A
Role not disclosed
Vestwell

Provides infrastructure platform powering America's modern savings economy

$385MSeries E
Role not disclosed
Pelgo

AI-powered career transition agent providing job placement and reskilling services

$5.5MSeed
Role not disclosed
Haiqu

Builds software to optimise quantum hardware

$11MSeed
Role not disclosed