SOSV — Funding Activity & Portfolio Companies

Activity in this selectionOct 16, 2026 · Jul 19, 2026

SOSV invests in deep technology companies working on human and planetary health, beginning at pre-seed and supporting later financing as companies develop.

Investment approach

SOSV combines venture investment with laboratories, engineering facilities and support for product development, commercial strategy and fundraising. Its published approach starts with pre-seed investment through its programmes and includes follow-on investment beyond the programme.

Activity recorded on RoundOS

The recorded financing announcements include Cauldron Ferm, Princeton Critical Minerals, Viabot and Cradlewise. SOSV’s own portfolio also identifies Cradlewise as a HAX company. The table below covers announcements recorded by RoundOS, with their reported participants and roles.

Sources

Rounds participated in: 4
Confirmed lead rounds: 1
New companies: 4
Funding in participating rounds: $62M

By stage

Series A3

Seed1

By primary sector

AI1

Climate tech1

Consumer1

Robotics1

By country

United States2

United Kingdom1

Rounds

4 in this selection

Sep 30

Zenithon AI

Zenithon builds physics-grounded machine-learning models that help engineering teams simulate and optimize complex systems in fusion, aerospace and semiconductor development.

$10MSeed

Lead

Sep 17

Viabot

Autonomous robots that sweep commercial properties, empty their own debris and return to a dock for charging.

$24MSeries A

Participant

Sep 3

Cradlewise

Cradlewise makes smart cribs that monitor infant sleep and provide soothing intended to help babies settle and stay asleep.

$12MSeries A

Participant