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S3 Ventures

North America, Texas, United States, Austin

Description

S3 Ventures is a prominent Austin, Texas-based venture capital firm with a strong focus on investing in high-growth technology companies across the United States, particularly within Texas. The firm primarily targets opportunities in software, digital health, and tech-enabled services sectors. S3 Ventures is known for its hands-on approach, often serving as the first institutional investor or leading investment rounds, and actively participating on company boards to provide strategic guidance and operational support to its portfolio companies. Their investment philosophy centers on identifying businesses with robust management teams, significant market potential, and proprietary technology.

The firm typically engages with companies across various stages, from seed to growth, though their sweet spot often lies in Series A and Series B rounds. S3 Ventures aims to deploy initial investments ranging from $500,000 to $10 million, demonstrating flexibility to support companies at different points in their development. Beyond capital, S3 Ventures emphasizes building long-term partnerships with entrepreneurs, leveraging their extensive network and operational expertise to help companies scale effectively and achieve market leadership.

S3 Ventures has consistently demonstrated its commitment to the venture ecosystem through successful fundraising efforts. For instance, the firm announced the closing of S3 Ventures Fund V with $250 million in committed capital in 2021, which was dedicated to supporting innovative startups. Building on this momentum, they further solidified their position by closing S3 Ventures Fund VI, also at $250 million, in 2023. These significant fund sizes underscore their capacity to provide substantial follow-on capital and support their portfolio companies through multiple funding rounds, reinforcing their role as a long-term partner for entrepreneurs. Their strategic investments aim to foster the development of impactful companies that can drive significant returns and contribute to technological advancement.

Investor Profile

S3 Ventures has backed more than 89 startups, with 13 new investments in the last 12 months alone. The firm has led 47 rounds, about 53% of its total and boasts 22 exits across its portfolio.

Investment Focus Highlights

  • Concentrates on Series A, Seed, Series B rounds (top funding stages).
  • Majority of deals are located in United States, Canada.
  • Strong thematic focus on Software, Information Technology, SaaS.
  • Led 4 rounds in the past year.
  • Typical check size: $500K – $10M.

Stage Focus

  • Series A (27%)
  • Seed (20%)
  • Series B (19%)
  • Series C (12%)
  • Series Unknown (12%)
  • Series D (3%)
  • Series E (3%)
  • Private Equity (1%)
  • Series G (1%)

Country Focus

  • United States (98%)
  • Canada (1%)

Industry Focus

  • Software
  • Information Technology
  • Saas
  • Health Care
  • Manufacturing
  • Biotechnology
  • Medical Device
  • Medical
  • Machine Learning
  • Analytics
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FAQ

Frequently Asked Questions

Learn who this investor regularly partners with—both firms and angels—and explore their latest activity.

Who does S3 Ventures frequently co-invest with?

Next Coast Ventures
North America, Texas, United States, Austin
Co-Investments: 4
Wild Basin Investments
North America, Texas, United States, Austin
Co-Investments: 5
Triangle Tweener Fund
North America, North Carolina, United States, Durham
Co-Investments: 4
HealthpointCapital
North America, New York, United States, New York
Co-Investments: 4
Tensility Venture Partners
North America, Illinois, United States, Chicago
Co-Investments: 5
Alerion Ventures
North America, South Carolina, United States, Charleston
Co-Investments: 3
Brick & Mortar Ventures
North America, California, United States, San Francisco
Co-Investments: 3
Argonaut Private Equity
North America, Oklahoma, United States, Tulsa
Co-Investments: 5
TDF Ventures
North America, Maryland, United States, Chevy Chase
Co-Investments: 3
Silverton Partners
North America, Texas, United States, Austin
Co-Investments: 4

Which angels does S3 Ventures often collaborate with?

MG
North America, Illinois, United States, Chicago
Shared Deals: 1
Shared Deals: 1
AE
North America, South Carolina, United States, Greenville
Shared Deals: 1
HE
North America, Maryland, United States, Towson
Shared Deals: 1
SW
North America, Louisiana, United States, New Orleans
Shared Deals: 1
CC
North America, United States
Shared Deals: 1
CK
North America, California, United States, San Francisco
Shared Deals: 1
LH
Europe, Noord-Holland, The Netherlands, Amsterdam
Shared Deals: 1
NC
North America, United States
Shared Deals: 2
KP
North America, Georgia, United States, Atlanta
Shared Deals: 1

What are some of recent deals done by S3 Ventures?

DataBahn

Dallas, Texas, United States

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

Artificial Intelligence (AI)Cyber SecurityData ManagementEnterprise SoftwareSecuritySoftware
Series AJun 26, 2025
Amount Raised: $17,000,000
QbDVision

Austin, Texas, United States

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

BiotechnologyHealth CareInformation TechnologyManufacturing
Series AMay 1, 2025
Amount Raised: $13,000,000
Hydrolix

Portland, Oregon, United States

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

Cloud Data ServicesDatabaseInformation TechnologyInternetOutsourcing
Series CApr 3, 2025
Amount Raised: $80,000,000

Autonomous AI For Data Engineering

Artificial Intelligence (AI)Business IntelligenceData IntegrationData ManagementEnterprise SoftwareMachine LearningSoftware
SeedMar 3, 2025
Amount Raised: $5,000,000
Mavvrik

Austin, Texas, United States

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

Information TechnologySoftware
SeedFeb 19, 2025
Amount Raised: $6,200,000
Endovascular Engineering

Menlo Park, California, United States

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

Clinical TrialsMedicalMedical Device
Series BFeb 18, 2025
Amount Raised: $42,000,000
MontyCloud

Seattle, Washington, United States

MontyCloud helps customers manage and monitor their cloud services.

Cloud ComputingInformation Technology
Series UnknownJan 21, 2025
Alleviant Medical

Austin, Texas, United States

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

BiotechnologyClinical TrialsHealth CareMedical Device
Series UnknownJan 14, 2025
Amount Raised: $90,000,000
KamiwazaAI

Silverthorne, Colorado, United States

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

Artificial Intelligence (AI)Data ManagementInformation TechnologyMachine Learning
SeedJan 9, 2025
Amount Raised: $8,500,000
Sunthetics

San Marcos, Texas, United States

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

ChemicalChemical EngineeringMachine LearningMachinery ManufacturingManufacturingSustainability
SeedNov 13, 2024
Amount Raised: $4,000,000