Skip to main content

S3 Ventures — Portfolio, Page 3

Investor actively backing innovative startups and growth-stage companies across various industries and funding rounds.

84
Companies
$1.7B
Total invested
$22.6M
Avg. check
53
Industries
Software 11Information Technology 6Artificial Intelligence (AI) 5Medical Device 4Health Care 4Manufacturing 3+47 more
Founder contacts

Verified emails & LinkedIn for founders across this portfolio.

jane@on●●●●●●●.com
linkedin.com/in/●●●●●●
Verified contacts, updated monthly
Get instant access →

Portfolio companies

Showing 4972 of 84
MontyCloud
January 2026

MontyCloud helps customers manage and monitor their cloud services.

Cloud Computing · Seattle$11.5M Series B
Buildforce
December 2025

Buildforce is a marketplace and career lifecycle platform for people in the construction trades

Construction · Houston$7.7M Series Unknown
Opine
December 2025

Opine helps to automate the pre-sales efforts for enterprise software transaction by removing the hassle of managing POCs.

Financial Exchanges · Durham$5.0M Seed
VahatiCor
November 2025

VahatiCor develops the A-FLUX Reducer System for coronary microvascular dysfunction relief.

Manufacturing · Santa Clara$23.0M Series B
LeanDNA
October 2025

LeanDNA is a Cloud platform that helps manufacturers manage inventory, balance supply and demand, and improve production planning.

Analytics · AustinPrivate Equity
Venture Med Group
October 2025

Venture Med Group develops medical devices for vascular health, focusing on peripheral artery disease and arteriovenous access treatment.

Biotechnology · Plymouth$28.0M Series C
Folia Health
October 2025

Folia Health is a platform that captures and shares secure health and symptom data for users.

Health Care · Cambridge$10.5M Series A
Nestimate
August 2025

Nestimate is an analytics platform that provides retirement income services.

Financial Services · Lincoln$3.0M Seed
Videate
July 2025

From Script to Screen with No In Between.

Artificial Intelligence (AI) · AustinConvertible Note
DataBahn
June 2025

DataBahn is an AI-powered data pipeline management tool that automates and enriches telemetry data with AI-enabled precision.

Artificial Intelligence (AI) · Dallas$17.2M Series A
Atmosphere
May 2025

Atmosphere is a streaming TV platform for businesses, offering 21 original and partner TV channels.

Media and Entertainment · Austin$62.7M Debt Financing
QbDVision
May 2025

QbDVision is a biopharma company that offers a platform designed specifically for biotech products, teams, and processes.

Biotechnology · Austin$13.0M Series A
CereTax
April 2025

CereTax is here to show tax managers, tax directors.

Consulting · Alpharetta$7.9M Series Unknown
Hydrolix
April 2025

Hydrolix is a data management company that specializes in providing solutions for storing, managing, and analyzing large-scale data.

Cloud Data Services · Portland$80.0M Series C
Crogl
March 2025

Crogl investigates thousands of alerts per day following your organization's workflows.

Computer · Bernalillo$25.0M Series A
TensorStax
March 2025

TensorStax is a SaaS company that offers autonomous AI for data engineering services.

Artificial Intelligence (AI) · San Francisco$5.3M Seed
Mavvrik
February 2025

Mavvrik is a unified platform to manage Cloud, On-Prem, AI, and SaaS costs

Information Technology · Austin$6.2M Seed
Endovascular Engineering
February 2025

Endovascular Engineering is a preclinical stage company developing novel mechanical thrombectomy solutions.

Clinical Trials · Menlo Park$42.0M Series B
Alleviant Medical
January 2025

Alleviant Medical develops transcatheter technology designed to lift the clinical and economic burden of heart failure.

Biotechnology · Austin$90.0M Series Unknown
KamiwazaAI
January 2025

KamiwazaAI offers scalable AI solutions for cloud, core, and edge environments.

Artificial Intelligence (AI) · Silverthorne$8.5M Seed
Prokeep
November 2024

Prokeep is a customer engagement platform that enhances distributor communication.

B2B · New Orleans$25.0M Series A
RepVue
October 2024

RepVue is a crowdsourced ratings and career development platform for sales professionals.

Career Planning · Chapel HillSeed
Interplay Learning
September 2024

Interplay Learning is an information technology company that specializes in virtual reality and 3D solutions.

Education · Austin$20.0M Private Equity
Allstacks
August 2024

Allstacks develops a software engineering intelligence platform to predict forecasting and risk management.

Business Intelligence · Raleigh$10.0M Series A

Where S3 Ventures invests

Software11
Information Technology6
Artificial Intelligence (AI)5
Medical Device4
Health Care4
Manufacturing3

About S3 Ventures's portfolio

How many companies has S3 Ventures invested in?

S3 Ventures has invested in 84 companies tracked in our database. The portfolio spans multiple industries and funding stages, from seed-stage startups to late-stage companies.

What industries does S3 Ventures invest in?

S3 Ventures's top investment sectors include Software, Information Technology, Artificial Intelligence (AI), Medical Device, Health Care. The firm invests across 53 different industry categories.

What is S3 Ventures's largest investment?

Among tracked funding rounds, Alleviant Medical received $90.0M in a Series Unknown round. S3 Ventures's total known invested capital is $1.7B.

What is the average investment size for S3 Ventures?

S3 Ventures's average investment size is $22.6M across its portfolio of 84 companies.

What are S3 Ventures's most recent investments?

Recent S3 Ventures portfolio additions include MontyCloud, Buildforce, Opine, VahatiCor, LeanDNA. These companies were founded in 2020 or later.

Reach the founders behind these 84 companies
Verified emails and LinkedIn profiles, updated monthly.
Get instant access →