S3 Ventures

Activity from announced rounds

Activity in this selectionOct 16, 2026 · Jul 19, 2026
Rounds participated in
4
Confirmed lead rounds
—
4 roles undisclosed
New companies
4
First participation on record · 0 follow-on
Funding in participating rounds
$123.5M
4 disclosed · full round size, not this investor’s share

By stage

Series A2
Series B1
Series C+1

By primary sector

Healthtech2
Cybersecurity1
Proptech1

By country

United States4

Rounds

4 in this selection
MaxQ Medical

Develops a combined imaging and therapy system for prostate care

$31.5MSeries A
Role not disclosed
Versa Vascular

Develops a transcatheter device for minimally invasive tricuspid valve repair

$42MSeries C
Role not disclosed
DataBahn

Agentic Data Control Plane for the enterprise

$40MSeries B
Role not disclosed
Buildforce

Tech-enabled electrician staffing business connecting electricians with contractors

$10MSeries A
Role not disclosed