S3 Ventures
Venture capitalActively deployingAustin · Seed–Series B · 13 people tracked
Find your way into S3 Ventures
3,621 people in our graph share verified history with the S3 Ventures team — schools, employers, funds. One of them is your warm intro.
Investment thesis
S3 Ventures invests in technology companies solving major business problems—spanning software applications, IT infrastructure, developer tools and platforms, hardware, and other tech-driven products—as well as companies improving the human condition through medical devices and health software, from diagnostics and treatment to wellness. Backed by a single philanthropic limited partner, the firm positions itself as a patient, flexible investor free from traditional fundraising pressures. It leads Seed, Series A, and Series B rounds with initial checks of $500K to $15M+ and the capacity to invest $25M+ over the life of a company.
Source: firm website, verified Aug 23, 2026.
Team · 13 people
from the firm's website & public directories
Founder mafia
2 people who came through S3 Ventures went on to found or lead other companies.
What they invest in
from 52 of 150 portfolio companiesSaaS ×22Enterprise Software ×18AI & Machine Learning ×16Healthtech ×12Fintech ×10Data & Infrastructure ×9Medical Devices ×8Cloud Computing ×6
HQs:United States×61
Who they back
founder profiles across 24 portfolio companiesFounding team size:solo founder×122 founders×73 founders×34+ founders×2
Where their founders studiedfrom 23 founders with education data
The University of Texas at Austin ×2University of Colorado Boulder ×2
What their founders studiedfrom 22 founders with field-of-study data
Computer Science ×11Economics ×5Engineering ×5Life Sciences ×3Physics ×2
Where their founders worked beforefrom 23 founders with career history
Far Point Systems ×2
Accelerator rootsportfolio companies that came through a program
4 founders hold a PhD · 2 hold an MBA (of 24 with degree data)
Investments · 150 tracked
founders shown can be your intro pathBy year:2026 · 102025 · 132024 · 62023 · 32022 · 82021 · 32020 · 22019 · 32018 · 12017 · 22015 · 22014 · 457 dated
Alkami is a digital banking software platform for financial institutions including community and regional banks and credit unions.
Data & InfrastructureEnterprise SoftwareFintechMarketing TechSaaSPlano, US
Gary Nelson(Director)inMike Shootman(President and Chief Executive Officer)David Becker(Executive Officer)inJeff Chambers(Executive Officer)inHansen C. Michael(Executive Officer, Director)Jeffery Chambers(Executive Officer)
Board seatBrian SmithCharlie Plauche· per SEC Form D
Co-investorsMissionOGPlains Ventures
QbDVision provides a software platform designed to address digital transformation challenges in pharmaceutical and biotech manufacturing, helping companies manage compliance, quality, and process development.
BiotechCloud ComputingEnterprise SoftwareHealthtechSaaSAustin, US
Yash Sabharwal(President, CEO, Co-Founder)inRyan Shillington(CTO, CISO, Co-Founder)in
Board seatEric Engineer· per SEC Form D
Co-investorsNorthpond VenturesCartmell VenturesCREATE HEALTH VENTURES
VUV Analytics develops vacuum ultraviolet (VUV) spectroscopy instruments and detectors for chemical analysis, including detectors for gas and liquid chromatography used in analytical laboratories.
Deep TechHardwareNew MaterialsCedar Park, US
Dale Harrison(Executive Officer)inSean Jameson(Executive Officer, Director)inJoseph H. Timko(Director)Kirk Patterson(Executive Officer)Clark Jernigan(Executive Officer, Director)
Board seatBrian SmithEric Engineer· per SEC Form D
Co-investorsNew Science Ventures
Liquibase provides a platform for governing and automating database change management across pipelines, platforms, and teams, integrating with tools like ServiceNow, GitHub, Harness, and Terraform.
Data & InfrastructureDeveloper ToolsEnterprise Software
Robert(Co-founder)Pete(Co-founder)Nathan(Founder (Liquibase open-source project))Patti(Chief Executive Officer)Ryan(Chief Customer Officer / Customer Success)Steve Surace(Vice President of Engineering)in
Co-investorsRiver Cities CapitalMercury Fund
Mythic builds analog processing units based on compute-in-memory architecture designed to run AI workloads efficiently in real-world applications.
AI & Machine LearningHardwareSemiconductorsPalo Alto, US
Taner Ozcelik(CEO / Board Member)inSteven Pho(CFO)
Co-investorsCatapult VenturesLinse CapitalNew Enterprise Associates (NEA)Atreides ManagementDCVC (Data Collective)Lockheed Martin Ventures+12 more
SpectraWAVE develops optical and computational imaging technologies to diagnose and guide treatment decisions for patients with coronary artery disease and cardiovascular disease.
AI & Machine LearningDeep TechHealthtechMedical DevicesBedford, US
Eman Namati(President & CEO)inGuillermo Tearney(Founder; Professor of Pathology, Massachusetts General Hospital)Gregg Stone(Founder; Professor of Medicine, Mount Sinai Heart Health System)James Muller(Founder; Cardiologist, Brigham and Women's Hospital)inJeffrey O'Donnell(Founder; Managing General Partner, Runway Healthcare)Vivek Walimbe(Chief Operating Officer)in
Co-investorsLumira VenturesSV Health InvestorsDeerfield Management CompanyJohnson & Johnson Innovation – JJDC
VahatiCor is developing the A-FLUX Reducer System, an interventional device to treat coronary microvascular dysfunction, a condition affecting millions of patients—particularly women—who experience chest pain and cardiac symptoms despite normal standard angiography results.
HardwareHealthtechMedical DevicesSanta Clara, US
Marwan Berrada(Founder and Chairman)inHarry Rowland(CEO)inKevin Van Bladel(Chief Technology Officer)inMark Niggli(Chief Commercial Officer)inMarwan Berrada-Sounni(Executive Officer, Director)in
BoardBrian R. Smith(Director)in
Co-investorsIntuitive Ventures
Videate provides AI-driven video automation software that automatically updates product videos whenever software changes occur.
AdTechAI & Machine LearningEdTechMarketing TechSaaSAustin, US
Dave Gullo(Co-founder)Ryan Arnett(CEO)
Co-investorsFirebrand VenturesTensility Venture PartnersAiSprouts VC
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Arpio provides an automated disaster recovery platform purpose-built for AWS and Azure cloud applications.
Cloud ComputingCybersecurityData & InfrastructureEnterprise SoftwareSaaSDurham, US
Doug Neumann(Founder)inShaw Terwilliger(Founder)in
BoardWill Omberg(Director)in
Board seatEric Engineer· per SEC Form D
Co-investorsCompanyon VenturesCreativeCoDraper AssociatesIDEA NCPaladin Capital GroupY Combinator+3 more
BrainCheck offers a platform for cognitive assessment and care planning, centered on an FDA-registered Class II digital cognitive assessment plus over 30 clinical evaluation tools that integrate into clinical workflows and EHR systems like Epic and athenahealth.
Digital HealthHealthtechMedical DevicesSaaSHouston, US
Yael Katz(Executive Officer, Director)inDavid Eagleman(Executive Officer, Director)inAndrew Chen(Founder)in
Board seatCharlie Plauche· per SEC Form D
Co-investorsBlue Hour VenturesNext Coast VenturesNueterra CapitalTensility Venture PartnersTrue Wealth Ventures
Interplay Learning builds online skilled trades courses designed and delivered by industry experts and instructional designers, covering foundational technical knowledge and real-world applications for technicians.
EdTechEnterprise SoftwareFuture of WorkHR TechSaaSAustin, US
Douglas Donovan(Executive Officer, Director)
BoardIan Chiu(Director)inRichard Waitumbi(Director)Sam Decker(Director)Kimberly Caldbeck(Director)
Board seatCharlie Plauche· per SEC Form D
Co-investorsCathexis VenturesCentral Texas Angel NetworkCerity Partners VenturesOwl VenturesSierra VenturesSJF Ventures+3 more
Kamiwaza offers a distributed AI orchestration platform that processes data where it resides, allowing enterprises to deploy AI without centralizing data or compromising security.
AI & Machine LearningData & InfrastructureEnterprise SoftwareGovTechSilverthorne, US
Matthew Wallace(Executive Officer, Director)inLuke Matthew Norris(Executive Officer, Director)
Board seatEric Engineer· per SEC Form D
Co-investorsAscend Venture CapitalCitta CapitalFirstMile VenturesGreater Colorado Venture FundAscendPioneer Square Ventures
MontyCloud is a no-code, autonomous CloudOps platform that helps IT teams optimize and operate cloud services using intelligent automation and AI.
AI & Machine LearningCloud ComputingDeveloper ToolsEnterprise SoftwareRedmond, US
Venkat Krishnamachari(Chief Product Officer & Co-Founder)inKannan Parthasarthy(Chief Technology Officer & Co-Founder)Rajkumar Sivarajan(Executive Officer)Walter A. Rogers(Executive Officer, Director)inVENKATESWARAN HARIHARA SUBRAMANIAN(Executive Officer)
BoardSteve Berg(Director)in
Board seatEric Engineer· per SEC Form D
Co-investors1809 CapitalMadrona Venture GroupRaptor GroupRiverside Acceleration CapitalLytical Ventures
Prokeep offers a centralized communication platform that lets parts departments handle customer messages across text, email, fax, and web chat, with features like picture messaging, automated order status updates, and inventory checks.
AI & Machine LearningLogistics & Supply ChainMarketing TechSaaSSales TechNew Orleans, US
McKay Johnson(Founder)inMark Kanof(Founder)inJohn F. Carrere, III(Executive Officer, Director)
BoardTy Findley(Director)inJohn Giannuzzi(Director)
Board seatCharlie Plauche· per SEC Form D
Co-investorsCallais Capital ManagementIronspring Venture
Chapel Hill, US
RYAN WALSH(Executive Officer, Director)inM. SCOT WINGO(Director)
BoardRICHARD FRAIM(Director)in
Board seatEric Engineer· per SEC Form D
Co-investorsAlerion VenturesKnoll VenturesGTMfundTDF Ventures
Advanced NanoTherapies (ANT) develops next-generation drug-coated balloons (DCBs) using nanotechnology to treat vascular disease.
BiotechDeep TechHealthtechMedical DevicesCleveland, US
Marwan Berrada-Sounni(Executive Officer, Director)inMarwan Berrada(Founder)inMehdi Shishehbor(Director)Jerett Creed(Director)Regina Groves(Director)Phillippe Urbain(Director)
Alleviant Medical develops an investigational minimally invasive medical device using interatrial shunt therapy to treat heart failure patients, currently in FDA-approved clinical trials (ALLAY-HF and ALLAY-HFrEF).
BiotechHealthtechMedical DevicesAustin, US
Adam Berman(Executive Officer, Director)inJacob Kriegel(Executive Officer, Director)Avni Patel(Executive Officer, Director)Christopher Alex Arevalos(Executive Officer, Director)Albertien Greijdanus(Executive Officer, Director)
BoardGeoff Pardo(Director)in
Co-investorsBroadview VenturesRiverVest Venture PartnersTMC Venture FundCadence Healthcare VenturesGilde HealthcareGilmartin Capital LLC+1 more
Allstacks is an AI-agent platform that connects data from software development tools (Jira, GitHub, GitLab, Jenkins) to provide engineering teams and leaders with delivery metrics, risk alerts, and recommendations for planning, managing, and optimizing software creation.
AI & Machine LearningDeveloper ToolsEnterprise SoftwareRaleigh, US
Jeremy Freeman(Founder)inHersh Tapadia(Founder)inDarrell J. Freeman, Jr.(Executive Officer, Director)Scot Sherwood(Director)
BoardAndrew Drylie(Director)inFiras Raouf(Director)in
Co-investorsAtlassian VenturesCompanyon VenturesCreativeCoFirst Rays Venture PartnersGutbrain VenturesHyperplane Venture Capital+7 more
Co-investorsSageview CapitalValor Equity Partners
Avtal offers white-labeled digital collections software that combines email, text, and a self-serve payment portal to help third-party collection agencies raise liquidation rates without adding staff.
Enterprise SoftwareFintechSaaS
Irvine, US
Reagan Sakai(Executive Officer)Philip J Myers(Executive Officer, Director)
BoardBrian Smith(Director)in
Buildforce runs a platform that matches electrical contractors with pre-vetted, background-checked electricians for short-term or temp-to-hire work, and handles onboarding, GPS time tracking, compliance, and payroll.
B2B MarketplacesConstruction TechHR TechHouston, US
PartnerAaron Perman· led
Co-investorsFrontera Technology VenturesGrid CapitalMercury FundTDF Ventures
Buzz Solutions provides visual AI software that analyzes drone and camera inspection imagery to automate asset monitoring and anomaly detection across energy infrastructure including transmission lines, distribution networks, substations, and solar installations.
AI & Machine LearningEnergyEnterprise SoftwarePalo Alto, US
VIKHYAT CHAUDHRY(Executive Officer, Director, Promoter)inKAITLYN ALBERTOLI(Executive Officer, Director, Promoter)inVikhyat Chaudhry(Founder)inMuzammil Khalil(Founder)inJAGJOT SINGH(Director)MARK LOCH(Director)in
Co-investorsAzure Ventures GroupBlackhorn VenturesHearstLabMaC Venture CapitalUlu VenturesVodia Ventures
CereTax is a cloud-native, AI-powered platform for indirect tax that automates sales and use tax compliance across many jurisdictions.
AI & Machine LearningCloud ComputingEnterprise SoftwareFintechSaaSAlpharetta, US
Brent Reeves(Executive Officer, Director)inMike(Founder)inSteven Michael Sanders(Executive Officer, Director)
BoardAaron Perman(Director)inStephen DeBacco(Director)Robert Alvarez(Director)in
PartnerAaron Perman· led
Plural is an AI-powered platform that helps enterprises and organizations analyze legislation and anticipate policy impacts through bill summarization, topic detection, advanced search, and tracking across state and federal jurisdictions.
AI & Machine LearningGovTechLegalTechMounds View, US
Damola Ogundipe(Founder)in
Co-investorsBackstage CapitalDebut CapitalTechstarsHigher Ground LabsM25Menlo Ventures
ControlRooms.ai provides an AI-powered platform that helps industrial manufacturers automate troubleshooting to reduce unplanned downtime and production losses.
Advanced ManufacturingAI & Machine LearningAustin, US
Omar A. Talib(Founder)in
Co-investorsAmity VenturesOrigin VenturesStratMindsGTMfund
SurgSecure is a cybersecurity services firm that provides security assessments, technology integration, and management of scalable security solutions across data, applications, cloud, identity, network, and endpoints.
CybersecurityEnterprise Software
Co-investorsSprout OakGTM CapitalInsight Partners
DataBahn builds a data pipeline platform that handles ingestion, enrichment, governance, and AI readiness of data for enterprise security teams.
AI & Machine LearningCybersecurityData & InfrastructureEnterprise SoftwareDallas, US
Nanda Santhana(Chief Executive Officer)inNithyalakshmi Nareshkumar(Chief Operating Officer)
PartnerAaron Perman· led
Co-investorsForgePoint CapitalGTM CapitalSprout Oak
Austin, US
Sundeep Goel(Executive Officer, Director)in
BoardRajiv Bala(Director)inMohammad S Siddiqui(Director)
Co-investorsService Provider CapitalAmplify.LAFlyover CapitalKnoll VenturesTuesday Capital
Earlytrade offers an auction-based early payment platform that lets commercial general contractors pay their subcontractors ahead of schedule in exchange for a discount, giving contractors returns on their capital while helping trade partners get paid earlier.
Construction TechFintech
Guy Saxelby(Founder)inPiers Symons(Founder)in
Co-investorsFoundamentalShearwater CapitalBrick Mortar Ventures
Endovascular Engineering develops clot removal technologies targeting venous thromboembolism.
Medical Devices
Co-investors415 CapitalNorwest Venture Partners
Eterneva creates memorial diamonds grown from the cremated ashes of deceased people and pets, offering an interactive process, jewelry collections, and pre-planning options to help families honor loved ones.
ConsumerDirect to ConsumerNew MaterialsWellness & FitnessAustin, US
Adelle Archer(Co-founder & CEO)inGarrett Ozar(Co-founder & Co-CEO)in
Co-investorsMark CubanNext Coast VenturesPalm Tree Crew InvestmentsPoint King CapitalCapstar VenturesGoodwater Capital+5 more
Favor is a restaurant food delivery app focused exclusively on Texas, connecting local diners with local restaurants and delivering meals to their doors.
FoodTechLogistics & Supply ChainMarketplaces
Jag Bathin
Co-investorsCorsa VenturesSilverton Partners
Folia builds a collaborative annotation platform that captures every mark, comment, and signature as structured, attributable data across desktop, tablet, mobile, and web.
Data & InfrastructureEnterprise SoftwareSaaS
Ravi Bhatt(Founder)in
Co-investorsElevate VenturesIU VenturesCREATE HEALTH VENTURESCrosslink CapitalFlywheel Fund
HYAS provides a preemptive cyber defense platform that uses DNS activity analysis and Indicators of Future Attack to identify and neutralize threats before compromise.
CybersecurityData & InfrastructureSaaSNanaimo
CHRIS DAVIS(Executive Officer, Director)JEFF SPENCER(Executive Officer, Director)
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BoardOWEN MATTHEWS(Director)TIM EADES(Director)MATTHEW GOLDSTEIN(Director)
Co-investorsCyber Mentor FundDcode CapitalM12 (Microsoft's Venture Fund)Wesley Clover International Corporation
Ictero develops the CholeSafe System, a minimally invasive gallbladder ablation device for treating gallstone disease.
BiotechHealthtechMedical DevicesHouston, US
Matthew Nojoomi(CEO, Co-Founder)David Waters(COO, Co-Founder)inKovi Bessoff(Clinical Research Lead, Co-Founder)Raymond Kirk(CMO)
BoardAshok Gowda(Director)John Fichthorn(Director)
Co-investorsTexas HALO FundTMC Venture FundMedTex Ventures LLC
Interplay makes PlayTach, a smart device that attaches to a dog's crate and pairs with a mobile app, letting dog owners remotely dispense food and water, see and hear their pet via a built-in camera, play music, speak to them, and unlock the crate.
ConsumerHardwareIoTKansas City, US
Co-investorsTechstarsOwl VenturesThe Venture Reality Fund
LeanDNA offers APEX, a supply chain execution platform that turns manufacturing data into predictive insights and prioritized actions to help procurement and production teams reduce inventory shortages and excess and improve on-time delivery.
Advanced ManufacturingLogistics & Supply ChainSaaSAustin, US
Richard Lebovitz(Executive Officer, Director)in
BoardRony Kahan(Director)Michael Smerklo(Director)in
Co-investorsAccel-KKRNext Coast Ventures
Levelset provides a platform for contractors and suppliers in the construction industry to manage payment documentation and processing, reducing payment delays and disputes.
Construction TechEnterprise SoftwareFintechSaaSNew Orleans, US
Co-investorsBrick Mortar VenturesGrand VenturesHorizons VenturesNew Orleans Startup FundAltos Ventures
FintechInsurTechSaaSAustin, US
Andrew Ambrose(Executive Officer, Director)Peter Rung(Executive Officer, Director)
BoardJohn Velasquez(Director)
Co-investorsRunway Venture PartnersTechstars
Mavvrik provides a platform for real-time financial control and cost management across cloud, on-premise, and AI spending.
AI & Machine LearningCloud ComputingEnterprise SoftwareSaaSAustin, US
Darmawan Suwirya(Founder)in
Co-investorsAmplify.LAFlyover CapitalKnoll VenturesTech Square VenturesTuesday Capital
OutboundEngine provides a done-for-you marketing platform for small businesses, automating brand building, pipeline generation, and client outreach.
Marketing TechSaaSSales TechAustin, US
Branndon Stewart(Executive Officer, Director)Henrik Johansson(Director)inFrank Livaudais(Executive Officer)Tom Sloss(Executive Officer)Scott Leese(Executive Officer)
BoardRajiv Bala(Director)in
Co-investorsAlerion VenturesEscalate Capital PartnersHarmony PartnersSilverton PartnersCapital FactoryFloodgate
Austin, US
Pyahm Samani(Executive Officer, Director)Patrick Kolencherry(Executive Officer, Director)inMark Troutfetter(Executive Officer)inXina Seaton(Executive Officer)inPeter Evans(Executive Officer, Director)inLori Lowe(Executive Officer)
Co-investorsCapital Factory
Adstra provides identity resolution, data licensing, and curated person-based audiences for marketing, helping brands, agencies, publishers, and nonprofits target and activate customer data across channels.
AdTechData & InfrastructureMarketing Tech
Co-investorsRunway Venture PartnersVerizon Ventures
Riscosity provides an automated platform for securing sensitive data in transit, detecting and controlling outbound data transfers across a company's tech stack.
AI & Machine LearningCybersecurityData & InfrastructureSaaS
Anirban Banerjee(Founder)in
Co-investorsService Provider CapitalWipro VenturesSecure Octane
Santé builds a point-of-sale system designed specifically for liquor retail stores.
AI & Machine LearningEnterprise SoftwareFintechRetail TechSaaSNew York City, US
Darren Fike(Founder)in
Co-investorsBonfire VenturesKima VenturesOperator CollectiveTrail Run CapitalVeridical VenturesY Combinator+2 more
HealthtechHouston, US
Michael Magnani(Executive Officer, Director)inMehdi Razavi(Executive Officer, Director)
BoardGill M. Jack(Director)Milton Morris(Director)Daniel Steppe(Director)
Co-investorsHouston Angel NetworkBaird Capital
Stellar provides on-demand home services including plumbing, HVAC, electrical, and fencing repairs, pairing vetted tradespeople with online booking, transparent quotes, and real-time job tracking.
ConsumerMarketplacesPropTech
Co-investorsAlerion VenturesBrick Mortar VenturesNavigate VenturesStellifiWeatherford CapitalStripe
Suite Studios offers a file streaming product that lets teams access and work with cloud-stored files in real time without pre-downloading or syncing, with cloud storage that mounts like a local SSD.
Cloud ComputingCreator EconomyMedia & EntertainmentSaaSBoulder, US
Craig Hering(CEO & Co-Founder)inMichael Hering(Founder)inJay Maxwell(CPO & Co-Founder)inJames D. Maxwell(Executive Officer, Promoter)Hoppy Maffione(Chief Operating Officer)in
Co-investorsBonfire VenturesRange VCGrotech VenturesMassiveThe Fund
Sunthetics develops machine learning algorithms and software for chemical engineering applications.
AI & Machine LearningCleantechDeep TechNew MaterialsSaaSNew York City, US
Daniela Blanco(Executive Officer, Director)in
BoardLaura Lucas(Director)in
PartnerAaron Perman· led
Co-investorsL'ATTITUDE VenturesTechstarsVirta VenturesREFASHIOND Ventures
Company building autonomous AI agents for data engineering; acquired by Snowflake
Biraj Silwal(Founder)in
Co-investorsBee PartnersGlasswing VenturesGaingels
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Unpopular Ventures (UV) is an early-stage venture capital firm that invests in startups across sectors globally.
Sector Agnostic
Peter Livingston(Founder)in
Co-investorsPeakAfore CapitalAmino CapitalCIVGeneral AdvanceGoAhead Ventures+4 more
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UpEquity provides real estate services that help homeowners buying and selling simultaneously by unlocking equity and removing contingencies to enable competitive offers.
FintechPropTechAustin, US
Timothy Herman(Founder)in
Co-investorsEarly Light VenturesLaunchpad CapitalNext Coast VenturesOrigin VenturesRiptide VenturesThe MBA Fund+2 more
Vendelux runs an AI-based event intelligence platform that helps B2B teams pick events, book meetings and attribute pipeline.
Long Island City, US
Alexander Reynolds(Executive Officer, Director)inRichard Stefan Deeran(Director)
Co-investorsEarl Grey CapitalFirstMark CapitalHubSpot VenturesSignalFireTri-Valley VenturesTribeca Venture Partners+4 more
Versa provides a receipt capture and reconciliation platform for corporate travel and expense management.
Enterprise SoftwareFintechSaaSNew York City, US
Ted Power(Founder)inThomas Moore(Founder)in
Co-investorsY CombinatorCharacter
Versa Vascular is developing a tricuspid valve repair device with a delivery system designed for precise, repositionable implant placement.
HealthtechMedical DevicesSanta Cruz, US
Co-investorsSanta Cruz VentureView VenturesBioStar CapitalCadence Healthcare Ventures
ZSuite Tech provides ZEscrow, a platform that lets banks and financial institutions manage commercial escrow accounts and subaccounts at scale, handling complex interest calculations, tracking, and compliance.
FintechPropTechSaaSBurlington, US
Nathan Baumeister(Executive Officer, Director)Vilangadu G. Narayanan(Director)William W. Neville(Director)Tom Shen(Director)Jay Tuli(Director)
Co-investorsBankTech VenturesFINTOP CapitalJAM FINTOP
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
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Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.
Exits · 19
1 IPOs · 18 acquisitionsAlkamiNASDAQ: ALKTBriggoacq. by Costa Coffee (Coca-Cola)Acessa Healthacq. by HologicComplexacq. by Verizon (Verizon/Hearst); later resold to BuzzFeed, then NTWRKDigbyacq. by PhunwareGendaacq. by BuildotsGravitantacq. by IBMInvodoacq. by Industrial Color StudiosKimbiaacq. by GiveGabLibreDigitalacq. by R.R. Donnelley & Sons CompanyOutbound Engineacq. by Elm Street TechnologyPacket Designacq. by CienaPhurnace Softwareacq. by BMC SoftwareSiperaacq. by AvayaStoredIQacq. by IBMSudoziacq. by Zone & CoSumatraacq. by StripeTango Healthacq. by Benefitfocus IncTVA Medicalacq. by Becton, Dickinson and Company
Portfolio news
latest coverage across their companiesUnpopular Ventures · fintechfutures.com · Aug 28, 2026
Stellar · cryptonews.net · Aug 24, 2026
Versa Vascular · santacruzworks.org · Aug 17, 2026
Sudozi · aventis-advisors.com · Aug 8, 2026
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Vendelux · alleywatch.com · Aug 3, 2026
Santé · pulse2.com · Jul 19, 2026
Endovascular Engineering · funderintel.com · Jul 16, 2026
Frequently asked questions
- How many investments has S3 Ventures made?
- S3 Ventures has 150 tracked investments, 19 of which have exited, including 27 dated in the last 24 months.
- What stage does S3 Ventures invest at?
- S3 Ventures invests at the Seed, Series A, Series B stages.
- What is S3 Ventures's typical check size?
- S3 Ventures typically writes checks of $500K – $15M.
- What sectors does S3 Ventures focus on?
- S3 Ventures focuses on Cloud Computing, Construction Tech, Data & Infrastructure, Developer Tools, Digital Health, Enterprise Software, Hardware, Healthtech, Medical Devices, SaaS.
- Where is S3 Ventures located?
- S3 Ventures is headquartered in Austin, US.
- Does S3 Ventures lead rounds?
- Yes, S3 Ventures leads investment rounds.
- Who does S3 Ventures co-invest with?
- S3 Ventures most often shares deals with Next Coast Ventures, M12 (Microsoft's Venture Fund), Silverton Partners, among 68 tracked co-investors.
Media · Podcasts & interviews
featuring the teamAaron Perman, Partner at S3 Ventures on B2B, Healthcare & TX Startups
Grace Gong · Aaron Perman
FIESTA November 2023 - Aaron Perman - S3 Ventures
🎉 FIESTA Community 🎉 · Aaron Perman
Episode 12: How to Land Funding in Today’s Environment w/S3 Ventures’ Eric Engineer
Merritt Group · Eric Engineer
Images
Co-investors · 41
Next Coast Ventures is a venture capital firm founded by former operators that uses thematic research to invest in and support high-growth startups.
Brick & Mortar Ventures is a venture capital firm founded in 2015 that invests in early-stage startups building technology for the architecture, engineering, construction (AEC) and facilities management industries.
Alumni Ventures (AV) is a venture capital firm that co-invests alongside lead VCs in startups, backing founders with capital and access to a large investor and operator community.
Owl Ventures is a Silicon Valley-based venture capital firm with over $2 billion in assets under management that invests in education technology companies serving PreK-12, higher education, career mobility, and professional learning sectors. The firm also invests in companies at the intersection of education technology and other industries.
Silverton Partners is an early-stage venture capital firm based in Texas that partners with founders long-term, having backed 75+ portfolio companies with 30+ acquisitions and 4 IPOs.
Origin Ventures is an early-stage venture capital firm backing founders building companies in the artificial intelligence economy, focusing on infrastructure, software, applications, services, and marketplaces that transform productivity and automation.
RiverVest Venture Partners is a life sciences venture capital firm that invests in biotechnology and medical companies, working with entrepreneurs to advance therapeutic and medical innovations.
Tensility Venture Partners is an early-stage venture capital firm investing in entrepreneurs building AI-first software and services across deep tech applications.
Norwest Venture Partners is an investment firm whose growth equity team backs private, profitable, fast-growing companies, providing capital and hands-on support through its 'invited guest' approach.
Sierra Ventures is an early-stage venture capital firm that invests in first-principles founders, backing companies from inception through Series A across AI infrastructure, applied/vertical AI, deep tech, and physical/embodied AI.
Shasta Ventures is an early-stage venture capital firm that partners with founders building software, AI, and deep technology companies, providing capital, insight, and operating experience.
Amity Ventures is an early-stage venture firm that leads rounds, works closely with founders, and maintains a deliberately concentrated portfolio of only 3-5 investments per year.
▶29 more co-investors
Paladin Capital GroupForgePoint CapitalIronspring VentureBaird CapitalL'ATTITUDE VenturesSante VenturesTexas HALO FundDebut CapitalAndreessen HorowitzLightspeed Venture PartnersRedpoint VenturesFounder CollectiveBattery VenturesNextView VenturesQED InvestorsRed Swan VenturesWingGeneral AtlanticNextGen Venture PartnersRelay VenturesAV8 VenturesBroadhaven Capital PartnersTwo Bear CapitalNorthwestern Mutual AcceleratorDreamit VenturesSozo VenturesKaya VenturesThe Riverside CompanyFasterCapital
Firms observed investing alongside S3 Ventures, from public investor directories. Shared companies are the overlap with S3 Ventures's recorded portfolio.
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