S3 Ventures — Activity | F4

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S3 Ventures Activity

Every public signal F4 has attached to this firm, with sources and cross-entity links.

Types

Time range

Investment

Portfolio company Endovascular Engineering raised $80M Series C for next-generation thrombectomy technology.

Endovascular Engineering

Endovascular Engineering S3 Ventures

s3vc.comAPR 2026

APR 2026

Exit

Portfolio company Sudozi was acquired by Zone & Co to expand its AI-driven procurement platform.

Sudozi

Sudozi S3 Ventures

s3vc.comAPR 2026

APR 2026

Investment

Led Schematic's $6.5M seed round for SaaS and AI monetization infrastructure.

Schematic

Schematic S3 Ventures

s3vc.comAPR 2026

APR 2026

Investment

Portfolio company Avtal raised $24M to build digital infrastructure for the future of debt collection.

Avtal

Avtal S3 Ventures

s3vc.comMAR 2026

MAR 2026

Exit

Portfolio company TensorStax was acquired by Snowflake to accelerate agentic AI capabilities for data engineers.

TensorStax

TensorStax S3 Ventures

s3vc.comFEB 2026

FEB 2026

Milestone

Portfolio company Mythic announced joint development with Honda for 100x energy-efficient analog AI chips for automotive applications.

Mythic

Mythic S3 Ventures

s3vc.comFEB 2026

FEB 2026

Investment

Portfolio company BrainCheck raised $13M to expand its AI-enabled cognitive care and assessment platform.

BrainCheck

BrainCheck S3 Ventures

s3vc.comFEB 2026

FEB 2026

New Fund

Closed Fund VIII with $250M to continue backing Business Software and Healthcare Technology companies.

Fund VIII — $250M

venturecapitaljournal.comDEC 2025

DEC 2025