Fundraising Fox
S3 Ventures
Venture capitalActively deployingAustin · Seed–Series B · 11 people tracked
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Investment thesis
Founded in 2005 and backed by a single philanthropic limited partner, S3 Ventures 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 ability to invest $25M+ over the life of a company. The firm invests across two themes: business technology (software applications, IT infrastructure, developer tools and platforms, hardware, and other tech-driven products serving billion-dollar business problems) and healthcare technology (medical devices and software spanning diagnosis, treatment, and wellness). It describes itself as the largest venture capital firm native to Texas.
Source: firm website, verified Sep 27, 2026.
Team · 11 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 67 of 127 portfolio companiesSaaS ×30AI & Machine Learning ×22Enterprise Software ×20Fintech ×14Healthtech ×14Data & Infrastructure ×10Medical Devices ×9Cloud Computing ×6
HQs:United States×67Saudi Arabia×2Vietnam×1
Who they back
founder profiles across 38 portfolio companiesFounding team size:solo founder×192 founders×123 founders×54+ founders×2
Where their founders studiedfrom 36 founders with education data
The University of North Carolina at Chapel Hill ×2The University of Texas at Austin ×2University of Colorado Boulder ×2University of Pennsylvania ×2
What their founders studiedfrom 32 founders with field-of-study data
Computer Science ×16Engineering ×6Economics ×5Life Sciences ×4Medicine ×2Physics ×2
Where their founders worked beforefrom 38 founders with career history
IBM ×3Microsoft ×3Emburse ×2Far Point Systems ×2Oracle ×2
Accelerator rootsportfolio companies that came through a program
5 founders hold a PhD · 2 hold an MBA (of 36 with degree data)
Investments · 127 tracked
founders shown can be your intro pathBy year:2026 · 152025 · 142024 · 62023 · 42022 · 102021 · 52020 · 22019 · 62018 · 12017 · 32015 · 22014 · 472 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 R. SmithCharlie Plauche· per SEC Form D
Co-investorsMissionOGPlains VenturesGeneral Atlantic
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 R. 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+13 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 VenturesNavigate 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 GroupUncorrelated Ventures+6 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 VenturesGOOSE CapitalNext 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 VenturesCowtown Angelsgumi IncOwl Ventures+7 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 FundPioneer Square LabsAscend+1 more
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 CapitalAlumni VenturesLytical VenturesMadrona Venture GroupRaptor GroupRiverside Acceleration Capital
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+2 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+9 more
Xoilac Live (Xôi Lạc TV) is a Vietnamese-language website offering free live streaming of football matches in Full HD with Vietnamese commentary, covering leagues such as the Premier League, La Liga, Serie A, Ligue 1, Champions League and V-League.
ConsumerMedia & Entertainment
Khaldoon Bushnaq(Founder)inTrần Đức Thiện(CEO)
Co-investorsAnnex InvestmentsJoa CapitalOryx FundWamda CapitalKhwarizmi VenturesSalica Investments
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
Boom operates a leasing platform connecting property managers and renters through the full leasing process, from inquiry to approved resident.
FintechPropTechSaaSAustin, US
Rob Whiting(Co-founder & CEO)in
Co-investorsBungalow CapitalClocktower VenturesFox VenturesMischiefSiesta VenturesStarting Line+4 more
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
Vu Brown(Founder)inDenman Moody Heard(Executive Officer, Director)Jarrod Pollock(Director)Alexander Brown(Executive Officer, Director)
BoardJackie DiMonte(Director)Adrian Fortino(Director)in
PartnerAaron Perman· led
Co-investorsChicago VenturesFrontera 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 CapitalNVIDIAUlu Ventures+1 more
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
Cloverleaf AI provides a B2G sales intelligence platform that monitors government agencies and surfaces insights from public meetings to help sales teams identify deal opportunities before RFPs are issued.
AI & Machine LearningEnterprise SoftwareGovTechSales TechDenver, US
Adam Zucker(Founder)in
Co-investorsFirstMile VenturesJackson Square VenturesJHH vcLegalTechService Provider CapitalTAWANI Ventures+1 more
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-investorsAlumni VenturesAmity VenturesFJ LabsOrigin VenturesStratMindsGTMfund
Crogl is an AI platform for enterprise security operations centers that automates security investigation workflows to accelerate junior analyst development and retain institutional knowledge.
AI & Machine LearningCybersecurityEnterprise Software
David Dorsey(Founder)inmonzy merza(Founder)in
PartnerAaron Perman· led
Co-investorsAV8 VenturesFirestreak VenturesMenlo VenturesTola Capital
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-investorsAntlerFoundamentalIsaiShearwater 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 CubanFounder CollectiveKaya VenturesNext Coast VenturesPalm Tree Crew InvestmentsPoint King Capital+8 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
FLEX Vascular develops endovascular devices for treating stenoses in arteriovenous fistulas, grafts, and peripheral vascular conditions.
BiotechHealthtechMedical Devices
John P. Pigott(Founder, Advisor)John P. Pigott, MD(Founder, Advisor)
Co-investorsRiverVest Venture Partners
Folia Health is a digital health platform that enables patients and caregivers to track symptoms, treatments, and health outcomes through personalized surveys, generating home-reported outcomes data used by life sciences companies and researchers to understand real-world treatment impacts.
Data & InfrastructureDigital HealthEnterprise SoftwareHealthtechSaaSMassachusetts, US
Nell Meosky Luo(CEO and Chairman)inDan Toffling(Co-Founder & CTO)inRavi Bhatt(Founder)inPaul T. Meosky(Executive Officer, Director)
Co-investorsBantam GroupCorrelation VenturesCrosslink CapitalElevate VenturesIU VenturesJoyance Partners+12 more
Genda provides construction management software designed to improve productivity and site efficiency by converting field data into actionable insights.
AI & Machine LearningConstruction TechSaaS
ErezEyalShai
Co-investorsJibe Ventures
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
InvestSky is a social investing platform offering commission-free trading of stocks and ETFs from Saudi and US markets with portfolio analytics, market data, and community features.
FintechSaaSSocial
Co-investorsEmkan CapitalJoa CapitalRun VenturesSignal Peak Ventures
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
Lynda.com redirects to LinkedIn Learning, an online education platform offering video courses, quizzes, exercise files, curated learning pathways, and professional certificates.
EdTechFuture of WorkSaaS
Co-investorsAccelSpectrum EquityHOLT VenturesMeritech Capital PartnersOwl VenturesSierra Ventures+3 more
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
Advanced ManufacturingSunnyvale, US
John N. Irwin III(Executive Officer)Paul Khuri-Yakub(Executive Officer)Amir Tehrani(Executive Officer, Director)
BoardPriscilla Babb(Director)Andre Khoury-Yacoub(Director)Pierre Khuri-Yakub(Director)
Co-investorsOlympus Innovation Ventures
Nestimate offers a software analytics platform that helps retirement plan fiduciaries select, implement, and monitor guaranteed lifetime income solutions within 401k and defined contribution plans.
FintechInsurTechSaaSLincoln, US
Kelby Meyers(Executive Officer, Director)
BoardBrock Smith(Director)
Co-investorsAltari VenturesInvest NebraskaPruVen Capital Partners
Opine builds AI agents that consolidate scattered deal context and product knowledge into real-time deal intelligence for technical sales teams.
AI & Machine LearningSaaSSales TechDurham, US
Akash Ganapathi(Founder)inCharlie Duong(Executive Officer, Director)Austin Kelleher(Executive Officer, Director)
Co-investors100Km Ventures LlcGray VenturesKnoll VenturesPrimordial VenturesPropel Venture PartnersPrimordial
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
Plural is an AI-powered policy intelligence platform that helps enterprises and organizations track, summarize, and analyze state and federal legislation.
AI & Machine LearningGovTechSaaS
Damola Ogundipe(CEO & Co-Founder)in
Co-investorsAlumni VenturesBread And Butter Ventures, LlcConsonance Investment ManagersFf Venture CapitalPurpose Built VenturesTech Square Ventures+6 more
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
Quantum operates an omnichannel advertising technology platform that connects online and offline retail media, letting retailers, brands, and agencies trade and exchange media across the commerce ecosystem.
AdTechData & InfrastructureMarketing TechMedia & EntertainmentRetail Tech
Omar MalaikahinSara Bin Ladin
Co-investors500 GlobalTech Invest ComDCVC (Data Collective)InkefLansdowne PartnersSpeciale Invest
Quantum Motion develops utility-scale quantum computers built on silicon-spin architecture, using standard silicon processing compatible with existing semiconductor foundries and designed to fit into data centres.
Deep TechQuantum ComputingSemiconductors
Co-investorsMundi VenturesBritish Business BankDCVC (Data Collective)InkefLansdowne Partners
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+9 more
HealthtechHouston, US
Michael Magnani(Executive Officer, Director)inMehdi Razavi(Executive Officer, Director)
BoardGill M. Jack(Director)Milton Morris(Director)Daniel Steppe(Director)
Co-investorsBaird CapitalHouston Angel Network
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
Sudozi provides an AI-powered procurement platform that handles intake, vendor workflows, approvals, budgets, and spend decisions, connecting the process from purchase request to payment.
AI & Machine LearningFintechSaaSAustin, US
Rose Punkunus(Executive Officer, Director)
BoardMar Hershenson(Director)
PartnerAaron Perman· led
Co-investorsPear VC
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-investorsIcebook Investments Corp.L'ATTITUDE VenturesREFASHIOND VenturesTechstarsVirta 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+3 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-investorsAlumni VenturesEarly Light VenturesLaunchpad CapitalNext Coast VenturesOrigin VenturesRiptide Ventures+11 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)inAlex Reynolds(Co-Founder, CEO)inStefan Deeran(Co-Founder, COO)inRichard Stefan Deeran(Director)
Co-investorsAlumni VenturesCervinCorrelation VenturesEarl Grey CapitalFirstMark CapitalFuture Back Ventures+8 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-investorsCollaborative FundSoma CapitalY CombinatorAndreessen HorowitzCharacterKleiner Perkins+4 more
Versa Vascular is developing a tricuspid valve repair device with a delivery system designed for precise, repositionable implant placement.
HealthtechMedical DevicesSanta Cruz, US
Co-investorsCorewell Health VenturesSanta 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.
BriggoEarlytrade US Holdings Corp.Engaged Citizen Inc.Rarefied Atmosphere, Inc.Schematic8Scliafuldfvtj1AapxgfkozrlsyvyAcessa HealthAlleviantANTAtmosphereTVBlog Post Title Four 5Mw5DBlog Post Title One Tgex9Blog Post Title Three Dg4XcBlog Post Title Two KlgwjBlog Post Title Two P6N5BBusiness Technology (Dallas, TX)Business Technology (Minneapolis, MN)Business Technology (San Francisco, CA)BuzzComplex MediaDaticalDigbyDrug-Coated BalloonDrug-Coated Balloon (DCB)E2Fws0C4R7Dyzeax9Okuw2Rxogw9OeetGravitantHealthcare Technology (Austin, TX)Healthcare Technology (Bedford, MA)Healthcare Technology (Richardson, TX)Hsghzr29Ktxfe3EHsghzr29Ktxfe3E 3JtfwHsghzr29Ktxfe3E 3Jtfw 8D63THsghzr29Ktxfe3E 3Jtfw 8D63T ZaeeeHsghzr29Ktxfe3E 3Jtfw 8D63T Zaeee YxwlaHydrolixIconixx SoftwareIcteroInvodoKimbiaLibreDigitalNexusGGPacket DesignPhurnace SoftwarePivot3PluralQualiaRapidPulserestSiperaStoredIQSumatraTango HealthTVA MedicalVentureMed Group
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 · 20
1 IPOs · 19 acquisitions · showing 17AlkamiNASDAQ: ALKTBriggoacq. by Costa Coffee (Coca-Cola)Acessa Healthacq. by HologicDigbyacq. 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 IBMSumatraacq. by StripeTango Healthacq. by Benefitfocus IncTVA Medicalacq. by Becton, Dickinson and Company
Portfolio news
latest coverage across their companiesQuantum Motion · thequantuminsider.com · Sep 3, 2026
Vendelux · finsmes.com · Jul 10, 2026
EarlyTrade · pymnts.com · Jun 9, 2026
Arpio · thesaasnews.com · Jun 5, 2026
Avtal · thesaasnews.com · Mar 24, 2026
BrainCheck · finsmes.com · Feb 27, 2026
Santé · finsmes.com · Feb 12, 2026
LeanDNA · thesaasnews.com · Oct 31, 2025
Frequently asked questions
- How many investments has S3 Ventures made?
- S3 Ventures has 127 tracked investments, 20 of which have exited, including 32 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 AI & Machine Learning, 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 Alumni Ventures, Knoll Ventures, Next Coast Ventures, among 144 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
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.
Next Coast Ventures is a venture capital firm that invests in emerging 'next coast' companies at the critical make-or-break stage of development to accelerate them into hyper-growth.
Brick & Mortar Ventures is a venture capital firm investing in startups building innovative software and hardware for the architecture, engineering, construction, and facilities management (AEC) industries.
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.
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.
An investment firm founded by operators with 12+ years of experience launching over 100 products for major brands, offering hands-on support in product strategy, MVP development, and operational scaling to portfolio companies.
Sierra Ventures is a venture capital firm that invests in early-stage SaaS and technology startups, focusing on B2B cloud software delivered via subscription models.
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.
Tensility Venture Partners is an early-stage venture capital firm investing in entrepreneurs building AI-first software and services across deep tech applications.
Kaya Ventures is an early-stage venture firm backing founders building companies that address critical gaps in care, health, and wellness.
Andreessen Horowitz (a16z) is a venture capital firm founded in 2009 by Marc Andreessen and Ben Horowitz, known for pioneering the platform model with a large team of operators supporting founders across stages.
▶29 more co-investors
Founder CollectiveNorwest Venture PartnersShasta VenturesGeneral AtlanticAmity VenturesPaladin Capital GroupForgePoint CapitalAV8 VenturesIronspring VentureBaird CapitalL'ATTITUDE VenturesSante VenturesTexas HALO FundLightspeed Venture PartnersRedpoint VenturesBattery VenturesNextView VenturesQED InvestorsRed Swan VenturesWingNextGen Venture PartnersRelay VenturesBroadhaven Capital PartnersTwo Bear CapitalNorthwestern Mutual AcceleratorDreamit VenturesSozo 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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DCVC (Data Collective) is a deep tech venture capital firm that backs entrepreneurs using computational approaches to solve large-scale real-world problems across many industries.
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Maverick Ventures Israel is an early-stage venture capital firm founded by entrepreneurs, backing Israeli technology startups across diverse industries with capital and operational support.
Menlo Ventures is an early-stage venture capital firm backing transformative technology companies, with a strong current emphasis on artificial intelligence across enterprise, healthcare, and consumer markets.
OMERS Ventures is a venture capital firm that invests in founders globally, with investment teams based in New York, Palo Alto, and Toronto.