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S3 Ventures — Portfolio, Page 2

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

87
Companies
$1.4B
Total invested
$23.2M
Avg. check
49
Industries
Software 8Information Technology 7Health Care 5Medical Device 4Machine Learning 4Medical 3+43 more
Founder contacts

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Portfolio companies

Showing 25–48 of 87
Endovascular Engineering
April 2026

Endovascular Engineering develops and deploys advanced clot removal solutions for the treatment of venous thromboembolism.

Clinical Trials · Menlo Park$80.0M Series C
Schematic
April 2026

Schematic is a B2B SaaS platform designed to simplify pricing and packaging for software companies.

B2B · Boulder$6.5M Seed
Avtal
March 2026

Avtal is a communications technology company that specializes in receivables management, omnichannel outreach, and payment portal.

Financial Services · Austin$24.0M Series A
Ictero Medical
February 2022

Ictero Medical is a medical device company that provides minimally invasive gallbladder ablation solutions.

Health Care · Houston$2.5M Venture - Series Unknown
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
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 Venture - Series Unknown
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
KamiwazaAI
January 2025

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

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

Easy-to-use machine-learning platform that leverages small data to develop new chemicals, materials, and processes up to 32x faster.

Chemical · San Marcos$4.0M 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
Allstacks
August 2024

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

Business Intelligence · Raleigh$10.0M Series A
NoiseAware
August 2024

Noiseaware is a noise protection service company that protects short-term rental properties, neighbors, and profits.

Consumer Electronics · Dallas$150K Series A
Riscosity
April 2023

Riscosity is the data flow posture management platform built to enable control, visibility, and compliance for data going to third parties.

Analytics · Austin$7.0M Seed
Vuv Analytics
February 2023

VUV Analytics develops vacuum ultraviolet optical technologies available for use in the life and environmental sciences.

Analytics · Austin$20.0M Venture - Series Unknown
Nexus
January 2023

Nexus serves as a platform for live service games and the content creators who play them.

Gaming · Austin$10.0M Series A
Plural
January 2023

Plural is a company that provides public policy tools to help teams save time and discover opportunities in workflows.

News · WashingtonVenture - 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
Alleviant Medical
January 2025

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

Biotechnology · Austin$90.0M Venture - Series Unknown
MontyCloud
January 2026

MontyCloud helps customers manage and monitor their cloud services.

Cloud Computing · Seattle$11.5M Series B

Where S3 Ventures invests

Software8
Information Technology7
Health Care5
Medical Device4
Machine Learning4
Medical3

About S3 Ventures's portfolio

How many companies has S3 Ventures invested in?▸

S3 Ventures has invested in 87 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, Health Care, Medical Device, Machine Learning. The firm invests across 49 different industry categories.

What is S3 Ventures's largest investment?▸

Among tracked funding rounds, Alleviant Medical received $90.0M in a Venture - Series Unknown round. S3 Ventures's total known invested capital is $1.4B.

What is the average investment size for S3 Ventures?▸

S3 Ventures's average investment size is $23.2M across its portfolio of 87 companies.

What are S3 Ventures's most recent investments?▸

Recent S3 Ventures portfolio additions include Endovascular Engineering, Schematic, Avtal, Ictero Medical, Venture Med Group. These companies were founded in 2020 or later.

Reach the founders behind these 87 companies
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