/Investor DB

mark vc — Full Portfolio

25 tracked investments · listed companies and verified rows first

Redditreddit.comin𝕏NYSE: RDDT

A social platform where users post content and discussions that are ranked by community votes, reaching hundreds of millions of monthly visitors across web and mobile applications.

Cloud ComputingConsumerMedia & EntertainmentSocialSan Francisco, US

Steve Huffman(Founder)inAlexis Ohanian(Founder)inMelissa Tidwell(Executive Officer)inDrew Vollero(Chief Financial Officer)inJennifer Wong(Chief Operating Officer)Benjamin Lee(Chief Legal Officer and Corporate Secretary)in

Co-investors1435 Capital500 GlobalA.Capital VenturesA*AAF Management Ltd.AlleyCorp+38 more

Andelaandela.comin𝕏

Andela connects global technologists with enterprise opportunities and serves as a platform for hiring, building AI systems, and upskilling teams.

AI & Machine LearningDeveloper ToolsEnterprise SoftwareFuture of WorkHR TechMarketplacesWashington, D.C., US

Jeremy Johnson(Founder)inIyinoluwa Aboyeji(Founder)inNadayar Enagesi(Founder)Brice Nkengsa(Founder)inIan Carnevale(Founder)inChristina Sass(Founder)in

Co-investors4DX VenturesAccelerate AfricaAir Street CapitalAmplo VenturesCRE Venture CapitalDBL Partners+31 more

Andurilanduril.comin

Anduril builds autonomous systems and software for defense and military applications, including attack aviation, unmanned aircraft, and underwater vehicles, unified by an autonomy platform.

AI & Machine LearningDefense TechHardwareRobotics

Palmer Luckey(Founder)inBrian Schimpf(Founder)inTrae Stephens(Founder)inJoe Chen(Founder)Joseph Chen(Founder)inMatt Grimm(Founder)

Co-investors137 Ventures1435 Capital1Flourish Capital8VCAliya Capital PartnersAltra Venture+105 more

Apptronikapptronik.comin𝕏

Apptronik builds humanoid robots designed to perform repetitive, physically taxing, and dangerous tasks in warehousing and manufacturing environments, aiming to free workers for higher-value activities.

Advanced ManufacturingAI & Machine LearningHardwareRoboticsAustin, US

Jeff Cardenas(Founder)inNicholas Arden Paine(Executive Officer, Director)Luis Sentis(Founder)Nick Paine(Founder)

BoardClarence Gordon Daugherty, IV(Director)Howard Lee Morgan(Director)in

Co-investors1435 CapitalAssembly VenturesAtinum Investment Co. Ltd.B Capital GroupB4 CapitalBaseTwo+36 more

Archarch.coin𝕏

Arch provides a platform for administering private and alternative investments, centralizing communications, documents, and data from institutions and managers into one standardized view.

Enterprise SoftwareFintechSaaSNew York, US

Ryan Eisenman(Founder)inJason Trigg(Founder)in

Co-investorsCraft VenturesExpansion Venture CapitalGood FriendsMenlo VenturesOak HC/FTReshape+8 more

Atropos Healthatroposhealth.comin𝕏

Atropos Health develops a cloud-based platform that generates real-world evidence from electronic health records to inform clinical decision-making and healthcare research.

AI & Machine LearningData & InfrastructureDigital HealthHealthtechStanford, US

Nigam Shah(Co-Founder & Chief Data Scientist)Brigham Hyde(Chief Executive Officer & co-Founder)inSaurabh Gombar(Chief Medical Officer & co-Founder)inNigam Shah, PhD MBBS(Co-Founder of Atropos Health & Chief Data Scientist at Stanford Health Care)NEIL SANGHAVI(Executive Officer)in

BoardMATTHEW BETTONVILLE(Director)

Co-investorsYosemiteBreyer CapitalCencora VenturesCerity Partners VenturesMcKesson VenturesMerck Global Health Innovation Fund+4 more

Bird Scootersbird.coin

Bird operates a shared electric scooter and e-bike service designed to reduce car trips and emissions in urban environments across multiple continents.

CleantechMobility & TransportationSanta Monica, US

Adriaan Mol(Founder)inBob Violier(Founder)Joey van Ommen(Founder)Robert Vis(Founder)Travis VanderZanden(Founder)in

Co-investorsAccelAlate PartnersCanaan PartnersCoastCapComcast VenturesCraft Ventures+22 more

Capella Spacecapellaspace.comin𝕏Sep 2018 · $19MAcquired

Capella Space designs, builds, and operates synthetic aperture radar (SAR) satellite constellations that provide all-weather, day-and-night Earth observation imagery at sub-0.25m resolution.

Deep TechDefense TechHardwareMedia & EntertainmentSpace TechPalo Alto, US

Payam Banazadeh(Founder)inWilliam Walter Woods(Founder)

BoardWilliam Woods(Founder)Chris Boshuizen(Director)inNabeel Hyatt(Director)in

Co-investorsAlumni VenturesAME Cloud VenturesBlue Ivy VenturesCanaan PartnersCastor VenturesCota Capital+13 more

Cellular Intelligencecellularintelligence.comin𝕏

Cellular Intelligence develops cell therapy treatments, specifically acquiring STEM-PD, a Phase 2-ready therapy for Parkinson's disease.

AI & Machine LearningBiotechMedical Devices

Micha Breakstone(CEO & co-founder)inAllon Klein(Scientific Co-founder)inOlivier Pourquié(Scientific Co-founder)inCliff Tabin(Scientific Co-founder)inJay Shendure(Scientific Co-founder)in

Co-investorsAstellas Venture Management LLCDarkmode VenturesFusionHarpoon VenturesLerer HippeauSciFi VC+2 more

Conflixisconflixis.comin

Conflixis provides a platform for managing conflicts of interest in healthcare by integrating provider disclosures, external data, and behavioral risk signals to help organizations ensure transparency and compliance across clinician and corporate relationships.

AI & Machine LearningEnterprise SoftwareHealthtechDallas, US

Aaron Narva(Executive Officer, Director)

BoardJacquie Marshall Siegmund(Director)inVincent Wan(Director)Joseph Bergen(Director)

Co-investorsLerer HippeauOrigin VenturesSpringTime Ventures

Datadata.worldin𝕏

data.world offers a data marketplace that presents an organization's most-used data products in an e-commerce-style shopping experience, with domain-based organization and curated views.

AI & Machine LearningData & InfrastructureEnterprise SoftwareSaaS

Co-investorsAKAR Ventures llcAlumni VenturesATPTexas VenturesUpslope VenturesAlbionVC+6 more

Dragosdragos.comin

Dragos provides cybersecurity software, threat intelligence, and professional services to protect operational technology (OT), IT, and IoT assets in industrial environments.

CybersecurityDefense TechEnterprise SoftwareHanover, US

Robert M. Lee(CEO and co-founder)inJon Lavender(Founder)Justin Cavinee(Founder)

Co-investorsAllegisCyber CapitalBYU Cougar CapitalCanaan PartnersCyber Mentor FundDataTribeEarth Foundry+10 more

Figmentsplotdrive.cominSeedDefunct

Plotdrive is an AI-powered writing tool designed for authors to draft novels and books faster with editorial guidance that preserves their unique voice.

AI & Machine LearningCreator EconomyEnterprise SoftwareSaaSLos Angeles, US

Jay Rosenkrantz(Founder)inScott Rosenkrantz(Founder)in

Co-investorsTRANSCENDY CombinatorAscensive AssetsBDMIDNA CapitalI2BF Global Ventures+6 more

Full Harvestfullharvest.comin𝕏

Full Harvest builds an agentic intelligence platform that orchestrates transactions and operations across the North American fresh produce supply chain, helping buyers and growers navigate climate volatility, labor shortages, and regulatory complexity.

AgTechAI & Machine LearningLogistics & Supply Chain

Co-investorsAstiaDoon CapitalGolden SeedsPortfoliaRabo Corporate VenturingRadicle Growth+6 more

Jonajona.healthin𝕏

Jona provides an AI-powered gut microbiome analysis that interprets scientific literature to generate personalized health insights and recommendations for consumers.

AI & Machine LearningDigital HealthWellness & Fitness

Leo Grady, PhD(Founder)in

Co-investorsAlumni VenturesArgon VenturesCity LightConnecticut InnovationsDefy PartnersKicker Ventures+3 more

Ojoojo.comin𝕏acquired by Lower · May 2025

Movoto is a U.S. real estate portal that offers home search, local market insights, and connections to vetted local real estate agents for consumers buying or selling homes.

ConsumerFintechMarketplacesPropTech

Co-investorsCorsa VenturesEscalate Capital PartnersSilverton Partners

Ostroostrohealth.comin

Ostro (Veeva Ostro) offers an AI-driven omnichannel engagement platform for biopharmaceutical, medical device, digital therapeutic, and diagnostics companies to deliver compliant, personalized content and experiences to healthcare providers and patients.

AI & Machine LearningDigital HealthHealthtechMarketing TechSaaS

Chase Feiger(Co-founder)inAhmed Elsayyad(Co-founder)inRyan Junee(Co-founder)in

Co-investorsBling CapitalLayout VenturesRRE VenturesTrust Ventures

Ringring.comAcquired

Ring provides video doorbells and security cameras that allow homeowners to monitor their property and enhance security across indoor and outdoor spaces.

HardwareIoT

Jamie Siminoff(Founder)in

Co-investorsAmerican Family VenturesCRV (Charles River Ventures)Energy Impact PartnersFelicis VenturesFlagship PioneeringGreen Meadow Ventures+14 more

Safe graphsafegraph.comin𝕏

SafeGraph builds and maintains a global dataset of information about physical places, updated monthly, for application developers and analytics teams.

Data & InfrastructureEnterprise SoftwareRetail TechSaaSDenver, US

Auren Hoffman(Founder)inBrent Perez(Founder)inJason Richmanin

BoardCharles Songhurst(Director)Alexander Rosen(Director)in

Co-investorsAkkadian VenturesClocktower VenturesCorazon CapitalDnx VenturesFJ LabsFlex Capital Partners+8 more

Sana Benefitssanabenefits.comin𝕏

Sana provides health plans and benefits administration services for small businesses, helping employers manage healthcare costs for their teams.

Digital HealthHealthtechHR TechInsurTechAustin, US

Nathan Hackley(Executive Officer, Director)inWilliam Young(Executive Officer, Director)in

BoardStephen Oskoui(Director)in

Co-investorsAmerican Family VenturesBreyer CapitalGigafundToba CapitalEarl Grey CapitalLiquid Ventures+1 more

Seed Healthseed.comin𝕏Apr 2021

Seed develops clinically studied probiotic and prebiotic formulations designed to support digestive health and overall wellness through proprietary delivery technology that protects beneficial bacteria through the digestive tract.

HealthtechWellness & FitnessVenice, US

Ara Katz(Executive Officer, Director)inRajat Dhir(Executive Officer, Director)Andy Bradley(Executive Officer)

Co-investorsAlumni VenturesArtis VenturesBold Capital PartnersBoxGroupCollaborative FundColor Capital+15 more

Standard Metricsstandardmetrics.ioin𝕏

Standard Metrics provides portfolio management and analysis software for investors, enabling automated data collection, centralized storage, and AI-powered insights across venture-backed companies.

AI & Machine LearningEnterprise SoftwareFintechSaaS

John Melas-Kyriazi(Founder)inDeny Khoung(Founder)Kevin Hsu(Founder)

Co-investors8VCAdapt VenturesAlpha EdisonBroom VenturesFin CapitalFirst Trust Capital Partners+16 more

VoiceBaseliveperson.comin𝕏

LivePerson is an enterprise software company that provides conversational AI and digital customer engagement solutions through its Conversational Cloud platform.

AI & Machine LearningEnterprise SoftwareSaaSNot stated, US

John Sabino(Chief Executive Officer)inJohn Collins(Chief Financial Officer and Chief Operating Officer)inBarbara Dawson(Chief People Officer)inMonica Greenberg(Chief Legal & Administrative Officer)inKevin Meeks(Field President, Chief Revenue & Customer Officer)inChristopher Mina(Chief Technology & Product Officer)in

Co-investorsBand of AngelsCota CapitalIrregular ExpressionsRTP Global

Zenbusinesszenbusiness.comin𝕏

ZenBusiness provides an all-in-one platform combining AI-powered guidance (Velo) with customer support to help entrepreneurs start, protect, and grow their businesses through business formations and compliance services.

Enterprise SoftwareFuture of WorkLegalTechSaaSAustin, US

Ross Buhrdorf(Founder)inShanaz Hemmati(Founder)inRafael Lopez(Executive Officer)inKhadijeh Hemmati(Executive Officer)

BoardJC Glancy(Executive Officer, Director)in

Co-investorsAlpha PartnersAlumni VenturesATX Venture PartnersBreyer CapitalCathay InnovationCleveland Avenue+15 more

Other

Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.

Flow Security

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.