S3 Ventures | Activity | F4

Introducing F4 Champions, a new accelerator for founders at the earliest stage.F4 Champions for early-stage foundersEnrollment closesAugust 2Learn more

Team Portfolio Raise Champions Essays

F4/S3 Ventures/Activity

S3 Ventures Activity

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

Types

Time range

8 investments· APR 2026 – AUG 2026Show all

Investment

Led Buzz Solutions' $20M Series A for AI-powered grid infrastructure inspection and reliability software.

Buzz Solutions

Buzz Solutions S3 Ventures

s3vc.comAUG 4, 2026

AUG 4, 2026

Investment

Backed DataBahn's $40M Series B for its AI-native enterprise security data pipeline platform.

DataBahn

DataBahn S3 Ventures

s3vc.comJUL 30, 2026

JUL 30, 2026

Investment

Backed RapidPulse's $48M round for its thrombectomy technology.

RapidPulse

RapidPulse S3 Ventures

s3vc.comJUL 20, 2026

JUL 20, 2026

Investment

Participated as an existing investor in Buildforce's $10M Series A to grow its electrician staffing marketplace.

BuildForce

BuildForce S3 Ventures

s3vc.comJUL 2026

JUL 2026

Investment

Backed Earlytrade's $25M round to deploy agentic AI across the construction payments ecosystem.

Earlytrade

Earlytrade S3 Ventures

s3vc.comJUN 9, 2026

JUN 9, 2026

Investment

Backed Arpio's $15M round for its AI-native automated recovery platform for cloud environments.

Arpio

Arpio S3 Ventures

s3vc.comJUN 3, 2026

JUN 3, 2026

Investment

Backed Advanced NanoTherapies' $31M+ Series B for its dual-drug nanoparticle-coated balloon platform for vascular treatment.

Advanced NanoTherapies

Advanced NanoTherapies S3 Ventures

s3vc.comJUN 2, 2026

JUN 2, 2026

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

Page 1 of 2