Fundraising Fox
San Diego · Pre-Seed–Series A · 12 people tracked
Also known as Harpoon · HARPOON MANAGEMENT, LLC
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Investment thesis
Harpoon backs bold founders working to advance American innovation and national strategic advantage. It invests in AI, deep tech, software infrastructure, and cybersecurity, viewing these areas as essential to restoring U.S. technological leadership. The firm emphasizes hands-on support beyond capital, particularly helping portfolio companies win U.S. government and defense contracts—from non-dilutive grants to programs of record exceeding $100M. Founded on the belief that technology will define geopolitics, Harpoon positions itself as a tactical advantage for founders, leveraging deep connectivity across the defense ecosystem, including special operations and military branches, to open doors and facilitate government customer relationships.
Source: firm website, verified Aug 3, 2026.
Team · 12 people
from the firm's website & public directories
Founder mafia
3 people who came through Harpoon Ventures went on to found or lead other companies.
What they invest in
from 55 of 66 portfolio companiesAI & Machine Learning ×26Enterprise Software ×15Deep Tech ×13Hardware ×12Advanced Manufacturing ×11Cybersecurity ×11Defense Tech ×9SaaS ×9
HQs:United States×41United Kingdom×2France×1
Who they back
founder profiles across 41 portfolio companiesFounding team size:solo founder×72 founders×143 founders×74+ founders×13
Where their founders studiedfrom 47 founders with education data
University of California, Berkeley ×6Massachusetts Institute of Technology ×5Stanford University ×5Carnegie Mellon University ×3Technical University of Munich ×3Harvard Business School ×2Harvard University ×2Stanford University Graduate School of Business ×2
What their founders studiedfrom 56 founders with field-of-study data
Computer Science ×27Engineering ×16Business & Management ×9Mathematics & Statistics ×5Physics ×4Chemistry ×3Life Sciences ×3Finance & Accounting ×2
Where their founders worked beforefrom 55 founders with career history
Microsoft ×7Stanford University ×7Google ×5Cloudera ×4Carnegie Mellon University ×3Dropbox ×3Snowflake ×3Andreessen Horowitz ×2
Accelerator rootsportfolio companies that came through a program
17 founders hold a PhD · 6 hold an MBA (of 58 with degree data)
Investments · 66 tracked
founders shown can be your intro pathBy year:2026 · 72025 · 72024 · 42023 · 22022 · 42021 · 72020 · 132 dated
Alta Ares builds an AI stack for autonomous air defense and ISTAR, including counter-drone interceptor effectors, an ISR product suite, and mission management software designed for contested, GNSS-denied environments.
AI & Machine LearningDefense TechRoboticsParis, FR
Alain Henry(Founder)Hadrien Canter(Founder)Stanislas Walch(Founder)Théo Bondarec(Founder)
Co-investorsAir Street CapitalApeiron Venture CapitalCherry VenturesKima VenturesOTB VenturesExpansion Venture Capital+5 more
Aalo develops advanced nuclear reactor technology aimed at producing electricity at under 3 cents per kilowatt-hour.
Climate TechDeep TechEnergyHardware
Matt(Co-founder)inYasir(Co-founder)inMatt Loszak(Founder)inYasir Arafat(Founder)
Co-investorsAkkaAlumni VenturesAtaraxia CapitalBanca Investis — Family OfficeBasecamp FundBlack Flag+35 more
Astranis manufactures small, high-powered geosynchronous satellites equipped with advanced digital processing technology for global telecommunications and connectivity services.
Advanced ManufacturingDeep TechHardwareSpace TechSan Francisco, US
John Gedmark(CEO)inRyan McLinko(CTO)inMike Mancini(Executive Officer)Siamak Ebadi(Lead RF Engineer)inHall Chen(RF Payload Design)inShraddha Pandya(Talent Acquisition)
Co-investorsAndreessen HorowitzATEL VenturesBlack FlagBoxGroupCantos VenturesCherubic Ventures+87 more
Buoyant develops Linkerd, a service mesh platform for Kubernetes that enables organizations to build secure, reliable, and observable software infrastructure.
Cloud ComputingDeveloper ToolsEnterprise Software
William Morgan(Founder)inOliver Gould(Founder)in
Co-investorsA.Capital VenturesDCVC (Data Collective)GV (Google Ventures)Webb Investment NetworkBenchmarkBuoyant Ventures Management, Llc+2 more
Capable is a vertically integrated, AI-enabled deeptech platform developing peptide and nucleotide therapeutics using automated polymer synthesis, drawing on rare human genetic variants.
AI & Machine LearningBiotechDeep Tech
Co-investorsGoAhead VenturesHOF CapitalScribble VenturesAble PartnersAlleyCorpM13
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 VenturesFusionLerer Hippeaumark vcSciFi VC+2 more
CyCognito provides an external attack surface management (ASM) platform that continuously discovers, tests, and prioritizes exposures across an organization's internet-facing assets, subsidiaries, and third-party connections.
CybersecurityEnterprise SoftwareSaaS
Rob N. Gurzeev(CEO and Co-Founder)inDima Potekhin(Founder)inDima Potehkin(Founder)Rob Gurzeev(Founder)
Co-investorsAccelAmiti VenturesBright Pixel CapitalCyber Mentor FundGeodesic CapitalKli Capital+6 more
Decodable is a fully-managed, serverless real-time data platform built on Apache Flink and Debezium for ETL/ELT, reverse ETL, and stream processing.
AI & Machine LearningData & InfrastructureSaaSWalnut, US
Eric Sammer(Founder)in
BoardEthan Batraski(Director)in
Co-investorsVenrockBain CapitalRackhouse Venture Management LpScribble VenturesBain Capital VenturesData Community Fund
deepset builds tools for developing custom LLM agents and applications, and created Haystack, an open-source Python framework used as an enterprise standard for AI agents and applications.
AI & Machine LearningDeveloper ToolsEnterprise Software
Milos Rusic(Founder)inMalte Pietsch(Founder)inTimo Möller(Founder)
Co-investorsAcequia Capital (AceCap)Balderton CapitalGV (Google Ventures)Lunar VenturesSignalRankSystem.One
eFlow extracts lithium from dilute brines in North America using direct lithium extraction technology, serving the clean energy and electric vehicle supply chain.
CleantechEnergyNew MaterialsSan Bruno, US
Eric McShane(CEO and co-founder)Evan Gardner(CTO and co-founder)in
Co-investorsBlack FlagFifty YearsUnion Square Ventures (USV)Voyager Partners
Encord provides a data platform for developing and deploying multimodal AI systems, serving AI development teams at scale across training and production environments.
AI & Machine LearningData & InfrastructureEnterprise SoftwareRoboticsLondon, GB
Ulrik Stig Hansen(President)inEric Landau(Founder)inLeeho Lim(Founder)David Sapiro(Senior Software Engineer)Mavis Lok(Product Designer)Maya Nayyar(Growth Manager)
Co-investorsBright Pixel CapitalCrane Venture PartnersCRV (Charles River Ventures)Next47Sonae IMY Combinator+7 more
EraDrive builds an AI-native software and hardware platform for spacecraft autonomy, covering space traffic management, on-orbit logistics, and space situational awareness.
AI & Machine LearningDefense TechSpace Tech
Justin(Co-founder & Chief Technology Officer)in
Co-investorsBlack FlagEntropy Industrial CapitalPoint Nine
Firestorm Labs builds xCell, a containerized 3D-printing factory that produces modular military drones at the point of need.
San Diego, US
Daniel Magy(Executive Officer, Director, Promoter)Chad McCoy(Founder)inIan Muceus(Founder)in
BoardTommy Hendrix(Director)Aaron Jacobson(Director)in
Co-investorsAlumni VenturesBackswing VenturesBeyond CapitalBlack FlagBooz Allen VenturesBVVC+20 more
General Galactic is a space infrastructure company focused on building orbital and extraterrestrial infrastructure, drawing inspiration from science fiction concepts like propellant generation for off-Earth settlement.
Deep TechHardwareLogistics & Supply ChainSpace TechEl Segundo, US
Halen Mattison(Founder)inLuke Neise(Founder)in
Co-investorsAntiBoxGroupIndustrious VenturesPathbreaker VenturesSeraphim SpaceUnruly Capital+1 more
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Genesis develops GEMS, an AI platform for drug discovery that identifies and optimizes drug candidates.
AI & Machine LearningBiotechDigital Health
Evan Feinberg(Founder)inBen Sklaroff(Founder)inEvan Feinberg Ph.D.(CEO, Co-founder)Evan Feinberg Ben Sklaroff(Founder)
Co-investorsAndreessen HorowitzBlackRockNVIDIAAlumni VenturesBlockchain CoinvestorsBlue Ivy Ventures+13 more
Glyphic Biotechnologies develops ProSE™, a high-throughput de novo protein sequencing technology for analyzing proteomes with single-molecule sensitivity.
BiotechDeep TechBerkeley, US
Daniel Estandian(Founder)inEd Boyden(Founder)Josh Yang(Founder)inJoshua Yang(Founder)
BoardCraig Asher(Director)inJimmy Yun(Director)in
Co-investorsArtis VenturesBlack FlagCivilization Ventures Management, LlcFoundersX VenturesIn-Q-TelLongeVC+9 more
Graphiant provides a software-based, unified network platform for connecting AI, cloud, SaaS, B2B, and branch environments.
Cloud ComputingData & InfrastructureEnterprise SoftwareSan Jose, US
Stefan Olofsson(Founder)in
Co-investorsMVP VenturesSequoia CapitalTwo Bear CapitalAtlantic Bridge VenturesIAG Capital PartnersWa'ed Ventures
Hanover Park is an AI-native fund administrator that combines automated services with software for investment firms, handling tasks such as bill processing, evidence collection, investment updates, LP responses, and KPI reconciliation.
AI & Machine LearningFintechSaaSNew York City, US
Chris Hladczuk(Founder)inNick Puljic(Founder)
Co-investorsBackwards CapitalGV (Google Ventures)SINEWAVE VENTURESSteel AtlasStrawberry Creek VenturesBanana Capital+3 more
Human Interest provides a software platform for 401(k) retirement savings plans, designed to help small and mid-sized businesses offer affordable retirement benefits to their employees.
Enterprise SoftwareFintechHR TechSaaSSan Francisco, US
Roger Lee(CEO)inPaul Sawaya(CTO)inJeff Schneble(Executive Officer, Director)inTripp Faix(Executive Officer)inYoyo Zhou(Engineering Manager)Michael Shinn(Technical Recruiter)
Co-investorsAlumni VenturesBetter Tomorrow VenturesFundersClubGlynn Capital ManagementGreat Oaks Venture CapitalImmeasurable+32 more
JITX develops software to automate hardware and circuit board design for electronics companies.
Advanced ManufacturingAI & Machine LearningDeep TechDeveloper ToolsHardwareRoboticsSan Francisco, US
Duncan Haldane(CEO)inJonathan Bachrach(Creative Director)inPatrick Napa(Co-founder)Patrick Li(Co-founder/Advisor)inAustin Buchan(CTO)Patrick S. Li
Co-investorsY CombinatorFundersClubSequoia CapitalLiquid Ventures
Kodiak AI develops AI-powered autonomous ground transportation solutions, with initial focus on driverless trucking.
AI & Machine LearningLogistics & Supply ChainMobility & TransportationRoboticsCalifornia, US
Don Burnette(Founder & CEO)inPaz Eshel(Founder)
Co-investorsA'Z AngelsAliya Capital PartnersBattery VenturesBMW i VenturesCRV (Charles River Ventures)Lightspeed Venture Partners+9 more
Lumos builds autonomous security systems that protect companies' access and identity infrastructure in an AI-first world.
AI & Machine LearningCybersecurityEnterprise SoftwareSan Francisco, US
Andrej Safundzic(Founder)inAlan Flores-López(Co-founder)inLeo Mehr(Founder)inAlan Ernesto Flores-Lopez(Director)Alan Flores-Lopez(Founder)
BoardPeter Levine(Director)
Co-investorsAndreessen HorowitzScale Venture PartnersTechstars
Malachyte builds real-time user vector personalization for retailers, creating a live profile for each website visitor from the first click without requiring login or browsing history.
AI & Machine LearningE-commerceRetail Tech
Sidd Motwani(Founder)inIan Anderson(Founder)inShivaditya Sinha(Founder)
Co-investorsGradient VenturesBessemer Venture Partners
Material develops HYBRID3D, a proprietary manufacturing platform that produces full-stack batteries in-situ—including anode, cathode, separator, and casing—without molds, enabling batteries to be shaped to fit curves, edges, and voids.
Advanced ManufacturingEnergyNew Materials
Co-investorsFlorida Opportunity FundGoAhead Ventures
Material Security provides cloud workspace security that prevents attacks and protects data across Microsoft 365 and Google Workspace for enterprise companies.
AI & Machine LearningCloud ComputingCybersecurityEnterprise SoftwareSaaSSan Francisco, US
Abhishek Agrawal(Founder)inChris Park(Founder)inRyan Noon(Founder)inAbhishek Agarwal(Founder)
Co-investorsAndreessen Horowitz515 VenturesAbstract VenturesAmplify PartnersavraDemos Strategic Investing Partners+6 more
Computer chip manufacturer building high-performance, cost-efficient platforms optimized for large-scale AI workloads.
Covina, US
Michial Gunter(Executive Officer, Director)Reiner Pope(Founder)inMike Gunter(Founder)inReiner Pope Mike Gunter(Founder)
BoardYasmin Razavi(Director)in
Co-investorsAIspace VenturesHomebrewOutset CapitalResonance VCSpark CapitalSV Angel+2 more
Merlin develops autonomy software for crewed and uncrewed aircraft for military and civil applications.
AI & Machine LearningDefense TechRobotics
Matthew George(Founder)Timothy Burns(Chief Technology Officer)Krishnan Anand(Chief Program Officer)inRyan Carrithers(Chief Financial Officer)inLeslie Ravestein(Chief Legal Officer)inDavid Lasater(Chief People Officer)in
Co-investorsBling CapitalBoxGroupFirst Round CapitalFloodgateShrug CapitalBoom Capital+2 more
MoldCo is a healthcare technology platform that connects patients with mold-trained providers to diagnose and treat mold illness through virtual care, specialized protocols, and home testing available across the United States.
Digital HealthHealthtech
Ariana Thacker(Founder)
Co-investorsAngel Collective Opportunity FundCantos VenturesCollaborative FundMoth FundStarship VenturesConscience VC+1 more
Monad is a high-performance EVM-compatible blockchain designed for fast, low-cost transactions.
Cloud ComputingCrypto & Web3Data & InfrastructureCalifon, US
Eunice Giarta Hon(Executive Officer)James Hunsaker(Founder)Keone Hon(Founder)inEunice Giarta(Founder)
Co-investorsAlphaLab CapitalAmbush CapitalArchetypeBankless VenturesBig Brain HoldingsBloccelerate VC+33 more
n8n is a visual and code-based workflow automation platform that enables technical teams to build, connect, and deploy AI agents and integrations with flexible deployment options ranging from on-premise to cloud infrastructure.
AI & Machine LearningDeveloper ToolsEnterprise Software
Jan Oberhauser(Founder)in
Co-investorsAccelBlank Space VenturesFelicis Venturesfirstminute capitalHighland EuropeHoltzbrinck Ventures+10 more
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Vectra AI provides real-time network observability and threat detection across hybrid environments spanning on-premises, multi-cloud, SaaS, edge, and IoT/OT systems.
Cloud ComputingCybersecurityData & InfrastructureIoT
Barrett Lyon(Founder)Dan Murphy(Founder)
Co-investorsAndreessen HorowitzBessemer Venture PartnersSyn Ventures Seed Management LlcWingMango Capital
Netskope offers a cloud-native platform that converges security and networking (SASE/SSE) to secure access to AI, cloud, web, and private applications for enterprises.
AI & Machine LearningCloud ComputingCybersecurityEnterprise SoftwareSanta Clara, US
Sanjay Beri(Founder)inKrishna Narayanaswamy(Founder)Lebin Cheng(Founder)Ravi Ithal(Founder)
Co-investorsAccel3Spoke CapitalAdit Ventures Management, LlcBallistic VenturesBase PartnersBerkeley Frontier+19 more
Northwood provides end-to-end ground infrastructure for space missions, from concept through deployment to live data delivery.
Deep TechHardwareSaaSSpace Tech
Shaurya Luthra(Founder)inBridgit Mendler(Founder)Griffin Cleverly(Founder)
Co-investorsAlpine Space VenturesAlso CapitalAlumni VenturesAndreessen HorowitzAurelia FoundryBalerion Space Ventures+13 more
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Orbital Ops develops propulsion systems and related aerospace hardware for airborne vehicles.
Advanced ManufacturingDeep TechDefense TechHardwareSpace TechLos Angeles, US
Ben Schleuniger(CEO)inRoss Doherty(COO)inHunterNico Montoya(Founding Engineer)
Co-investorsAlumni VenturesBlack FlagGoAhead VenturesInitialized CapitalMaiora Rebel VenturesOlive Tree Capital+16 more
Oso provides visibility and controls for AI agent adoption within enterprises, enabling discovery, monitoring, and enforcement of agent access and behavior.
AI & Machine LearningCybersecurityEnterprise SoftwareNew York, US
Graham Neray(Founder)inNick Kucharski(CTO (Cofounder & CTO))Sam Scott(Founder)
Co-investorsFelicis VenturesSequoia CapitalAlchemist AcceleratorEntrada VenturesInnovacomJ-Ventures+1 more
Recursive develops self-improving superintelligence systems designed to automate knowledge discovery.
AI & Machine LearningDeep TechLondon, GB
Caiming Xiong(Founder)inYuandong Tian(Founder)inTim Rocktäschel(Founder)in
Co-investorsAIX VenturesAlumni VenturesARA NEA Ventures (Brand: Dmz.Xyz)Conexo VenturesDCVC (Data Collective)Glasswing Ventures+12 more
The compliance firewall for AI.
Kojin Oshiba(Founder)inYaron Singer(Founder)
Co-investorsAlumni VenturesBasecamp FundCisco InvestmentsConvergeEngineering CapitalIn-Q-Tel+4 more
Sema4.ai builds intelligent agents that use natural language processing to enable users to express and execute complex tasks, and deploys Actions to accelerate enterprise workflows.
AI & Machine LearningDeveloper ToolsEnterprise SoftwareSaaSAtlanta, US
Rob Bearden(Co-founder & CEO)inRam Venkatesh(Co-founder & CTO)inPaul Codding(Co-founder & SVP of Product and Customer Experience)inSudhir Menon(Founder)inAntti Karjalainen(Founder)Suds Menon(Founder)
Co-investorsArtisanal VenturesCanvas VenturesKoch Disruptive TechnologiesMayfield FundMVP VenturesRocketship.vc+5 more
Semgrep develops a code scanning platform that detects security vulnerabilities and code issues across multiple programming languages, integrated with CI/CD tools like GitHub and GitLab.
CybersecurityDeveloper ToolsSan Francisco, US
Drew Dennison(Founder)inIsaac Evans(Founder)in
Co-investorsMenlo VenturesArtisanal VenturesBallistic VenturesBright Pixel CapitalFelicis VenturesLightspeed Venture Partners+8 more
Singularity manufactures counter-weapon systems and air defense equipment designed to protect military personnel and civilians.
Advanced ManufacturingDefense TechHardwareSpace TechLos Angeles, US
Jack Oswald(Founder)inshail giroux
Co-investorsFelicis VenturesMenlo VenturesNew Enterprise Associates (NEA)Soma CapitalY CombinatorAE Industrial Partners+4 more
Solugen develops a biomanufacturing platform using fermentation and bioprocessing technology to produce specialty chemicals at scale.
Advanced ManufacturingBiotechCleantechClimate TechHealthtechHouston, US
Sean Hunt(CTO)inGaurab Chakrabarti(Founder)inJonathan Tang(Investor)inSlava Solonitsyn(Investor)in
BoardSeth Bannon(Director)in
Co-investorsFifty YearsFounders FundLowercarbon CapitalY CombinatorBaillie GiffordGIC+40 more
Cellular Intelligence is a cell therapy company developing engineered cell treatments for diseases, including a Phase 2-ready therapy for Parkinson's disease acquired from Novo Nordisk.
AI & Machine LearningBiotechDeep TechBoston, US
Micha Breakstone, Ph.D.(CEO & co-founder)Allon Klein, Ph.D.(Scientific Co-founder)Olivier Pourquié, Ph.D.(Scientific Co-founder)Cliff Tabin, Ph.D.(Scientific Co-founder)Jay Shendure, M.D., Ph.D.(Scientific Co-founder)Micah Breakstone(Executive Officer, Director, Promoter)
Co-investorsKhosla VenturesNext Coast VenturesSamsung NextAMD VenturesFusionJLL Spark Global Ventures+6 more
SPM builds high-performance electric and optional-hybrid drivetrains for utility task vehicles (UTVs), offered as do-it-yourself conversion kits or complete turn-key vehicles.
CleantechHardwareMobility & TransportationNew Kensington, US
Jonathan Powers(Founder)in
Co-investorsQuorum Capital Partners
Starcloud is a deep-tech company building large-scale data center infrastructure designed to operate in space.
Advanced ManufacturingAI & Machine LearningClimate TechCloud ComputingData & InfrastructureDeep TechSemiconductorsSpace TechRedmond, US
Philip Johnston(CEO)inEzra Feilden(CTO)inAdi Oltean(Founder)inPaul Adrian Oltean(Executive Officer, Director)Philip Johnston Ezra Feilden(Founder)
BoardMorgan Beller(Director)in
Co-investorsAb Capital Holding BVAmbush CapitalCisco InvestmentsDnx VenturesDragon CapitalFUSE+58 more
Monad is a security data pipeline platform that normalizes, filters, enriches, and routes security telemetry from any source to optimize SIEM costs and reduce alert noise for security teams.
CybersecurityData & InfrastructureEnterprise SoftwareSaaSNew York City, US
Sunny Rekhi(Founder)inManny Gundampalli(CTO)inBryant Leein
Co-investorsY CombinatorAbstract VenturesBackend CapitalOriginal Capital
Tectonic builds and deploys post-quantum cryptography infrastructure, including NIST-aligned encryption, secure network routing that verifies every hop, and encryption key management across devices and users.
CybersecurityDefense TechQuantum Computing
Co-investorsReflexive CapitalSequoia CapitalOlive Tree CapitalBlack Flag
TruEra built an AI observability and model-quality platform — explainability, drift, bias and LLM-app evaluation — for data-science teams, spun out of Carnegie Mellon research by Will Uppington, Anupam Datta and Shayak Sen.
Redwood City, US
Anupam Datta(Founder)inShayak Sen(Founder)inWill Uppington(Founder)in
BoardTim Tully(Board Member (Partner, Menlo Ventures; former CTO, Splunk))inJerry Chen(Investor / Board contact (Partner, Greylock Partners))in
Co-investorsConversion CapitalData Community FundForgePoint CapitalGreylock PartnersMenlo VenturesWing+1 more
Truffle Security develops TruffleHog, an open-source secrets scanning tool that identifies and remediates exposed credentials such as encryption keys in cloud and SaaS environments before exploitation.
CybersecurityDeveloper Tools
Dylan Ayrey(Founder)inDustin Decker(Founder)Julian Dunning(Founder)
Co-investors515 VenturesAbstract VenturesAndreessen HorowitzExpaIntel CapitalJude Gomila+5 more
Type III, Inc. designs and manufactures hardware products such as its Rugged Mini Mount, offering rapid prototyping, low-volume production, and specialized hardware builds.
Advanced ManufacturingHardwareHuntington Beach, US
Daniel Moore(Executive Officer, Director)
Co-investorsBlack FlagFifty Years
The Ocean Company builds dual-domain systems for coastal ecosystem restoration and maritime infrastructure security.
CleantechClimate TechDeep TechDefense TechHardwareImpact & Social GoodRobotics
Will O'Brien(Founder)inAkhil Voorakkara(Founder)Jamie Wedderburn(Founder)inColm O'Brien(Founder)in
Co-investorsAndreessen HorowitzBooz Allen VenturesLowercarbon CapitalPebblebedGenius VenturesReGen Ventures+2 more
Ursa Major develops flight-proven aerospace and defense systems, including hypersonic engines, solid rocket motors, and space mobility solutions for military and defense applications.
Defense TechHardwareSpace TechBerthoud, US
Joe Laurienti(Founder)inNick Doucette(Co-Founder & Vice President, Strategic Operations)inDan Jablonsky(CEO)inChris Spagnoletti(Chief Executive Officer)in
Co-investorsAlpha EdisonAtento CapitalBalerion Space VenturesBrave CapitalCrosscourt VenturesEclipse Ventures+8 more
Colorado aerospace and defense manufacturer of rocket engines, solid rocket motors, hypersonic and in-space propulsion systems.
Berthoud, US
Joseph A. Laurienti, Jr.(Executive Officer, Director, Promoter)Nicholas Doucette(Executive Officer)David Gregory(Executive Officer)
BoardStewart Alsop(Director)in
Co-investorsAlsop Louie PartnersAlumni VenturesDolby Family VenturesAlpha EdisonBlackRockEclipse+2 more
Valinor Discovery generates patient-derived datasets combining multi-omics and clinical data to enable machine learning applications in drug development.
AI & Machine LearningBiotechMedical Devices
Co-investorsCampus Founders FundMythos Ventures Management, LlcCastle Island VenturesMaven 11
Vantage is an independent cloud cost management platform that helps businesses monitor and optimize their cloud spending.
AI & Machine LearningCloud ComputingFintechNew York City, US
Ben Schaechter(Founder)inBrooke McKim(Founder)in
Co-investorsAndreessen HorowitzScale Venture PartnersWorklife Ventures
Vector develops advanced defense technology solutions, including unmanned systems and integrated warfare capabilities, for the U.S. military and its allies.
Deep TechDefense TechHardwareSalt Lake City, US
Andy Yakulis(CEO and co-founder)Matt Long(Chief Strategy Officer and co-founder)George Matus(CTO and co-founder)
BoardLarsen Jensenin
Co-investorsPelion Venture PartnersAlumni VenturesBlack FlagDauntless VenturesKickstartPoint72 Ventures+1 more
Volansi manufactures and operates unmanned vertical-takeoff aircraft designed to carry heavy payloads across long distances for point-to-point delivery, targeting business customers in defense, commercial, and medical sectors seeking to reduce operational downtime expenses.
Advanced ManufacturingRoboticsSan Francisco, US
Hannan Parvizian(Founder)inWesley ZhengArnaud Thiercelin(Vice President of Software Engineering)Casey Kuznetsova(Recruiting Consultant)Lisa Noeltner(Senior Manager of Recruiting)Minh Chung Hoang(Director of Avionics)in
Co-investorsHemisphere Ventures LLCY CombinatorAccelerator VenturesAlchemist AcceleratorAlumni VenturesAutomation Ventures+11 more
Watershed builds a sustainability AI platform that combines climate science and emissions data with AI to help companies measure, report, and reduce their environmental impact.
AI & Machine LearningClimate TechEnterprise SoftwareSaaSSan Francisco, US
Taylor Francis(Founder)inAvi Itskovich(Founder)inChristian Anderson(Founder)in
BoardJohn Doerr(Director)inPatrick Grady(Director)
Co-investorsKleiner PerkinsSequoia CapitalGreenoaksAglae VenturesDesigner FundEnergize Capital+15 more
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WireScreen is a risk intelligence platform that aggregates public corporate records, ownership documents, and regulatory filings to provide transparency on global corporate ownership and control.
AI & Machine LearningCybersecurityData & InfrastructureEnterprise SoftwareGovTechNew York City, US
DavidLynnBradAlex
Co-investorsSamos InvestmentsSequoia Capital
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
Vector DefenseBlueskyLeapyearLeapYear TechnologiesLeviathan HoldingMaterial Hybrid ManufacturingOso SecurityTarly
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 · 6
1 IPOs · 5 acquisitions · showing 1Trueraacq. by Snowflake
Portfolio news
latest coverage across their companies
Starcloud · techcrunch.com · Aug 21, 2026
Malachyte · finsmes.com · Aug 6, 2026
Singularity · finsmes.com · Jul 14, 2026
Alta Ares · finsmes.com · Jun 10, 2026
kodiak2 · techcrunch.com · May 7, 2026
Astranis · finsmes.com · May 7, 2026
Firestorm · techcrunch.com · Apr 29, 2026
Frequently asked questions
- How many investments has Harpoon Ventures made?
- Harpoon Ventures has 66 tracked investments, 6 of which have exited, including 16 dated in the last 24 months.
- What stage does Harpoon Ventures invest at?
- Harpoon Ventures invests at the Pre-Seed, Seed, Series A stages.
- What is Harpoon Ventures's typical check size?
- Harpoon Ventures typically writes checks of $100K – $5M.
- What sectors does Harpoon Ventures focus on?
- Harpoon Ventures focuses on AI & Machine Learning, Cybersecurity, Data & Infrastructure, Deep Tech, Defense Tech, Developer Tools, SaaS.
- Where is Harpoon Ventures located?
- Harpoon Ventures is headquartered in San Diego, US.
- Does Harpoon Ventures lead rounds?
- Yes, Harpoon Ventures leads investment rounds.
- Who does Harpoon Ventures co-invest with?
- Harpoon Ventures most often shares deals with Andreessen Horowitz, Gaingels, Sequoia Capital, among 313 tracked co-investors.
From the blog
visit blog ↗Harpoon Ventures recently announced its $155 million Fund IV focused on critical technologies bridging commercial and government markets across compute, energy, aerospace, and biosecurity. The firm has invested in Astranis for low-cost satellite connectivity and General Galactic for carbon-neutral synthetic methane production, exemplifying its strategy of backing technologies addressing foundational infrastructure and national security challenges. AI summary
Media · Podcasts & interviews
featuring the teamThe Warrior Ethos & America's Mission, Interview with Harpoon Ventures Founder Larsen Jensen | Triggered Ep275
Larsen · rumble.com
Investing in the Freedom Stack with Larsen Jensen of Harpoon Ventures
Fresh Brewed Tech · Larsen
Making America Mission Ready, Interview with Harpoon Ventures founder Larsen Jensen | Ep246
Larsen · rumble.com
97. Larsen Jensen, Founder and General Partner, Harpoon Ventures
Second Front Systems · Larsen
Episode 5: Larsen Jensen, Founder at Harpoon Ventures
Dave Nolan · Larsen
Images
Co-investors · 17
Sequoia Capital is a venture capital firm that partners with founders to build technology companies.
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.
Lightspeed Venture Partners is a global venture capital firm that backs founders from Seed through Series F and beyond, emphasizing deep, immersive partnerships with the companies it invests in.
SV Angel is a San Francisco-based firm that invests long-term in founders, supporting them with advice, introductions, and network access at key business inflection points.
Accel is a venture capital firm that partners with exceptional teams, positioning itself as a first partner to founders globally.
New Enterprise Associates (NEA) is a venture capital firm that invests in and provides long-term support to founders building new companies.
BCV Labs is the platform and hands-on support arm of Bain Capital Ventures, providing portfolio founders with go-to-market strategy, brand development, hiring assistance, and customer introductions.
Venrock is a venture capital firm investing across technology and healthcare, backing companies in fintech, developer infrastructure, life sciences, therapeutics, semiconductors, and consumer products.
Craft Ventures is a venture capital firm run by a team of former founders, operators, and investors who partner closely with founders to help build and scale technology companies.
Afore Capital is a $500M pre-seed venture fund that invests in pre-traction, early-stage companies, leveraging product and investment expertise to support founders from day zero.
Thomvest is a group of investment companies investing on behalf of Peter J. Thomson and his family, backing entrepreneurs to build industry-defining companies. Its portfolio spans fintech, proptech, cybersecurity and related sectors.
Sorenson Capital is a venture capital firm that invests in B2B software companies across their entire lifecycle, from early-stage to pre-IPO, through separate early-stage and growth-stage funds.
▶5 more co-investors
UpWestM-One CapitalUnusual VenturesGreatPoint VenturesBain Capital Crypto
Firms observed investing alongside Harpoon Ventures, from public investor directories. Shared companies are the overlap with Harpoon Ventures's recorded portfolio.
Funds & brands
Separately branded funds and arms of Harpoon Ventures. Each has its own page; people who work on a brand are listed on both.
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