Cyril Ebersweiler
InvestorGeneral Partner, SOSV & Managing Director, HAX at SOSV · General Partner, SOSV & Managing Director, HAX at HAX · Board director at Labrador Systems · Incoming Series Seed Director. at Amber Agriculture
San Francisco Bay Area
Writes $250K – $5M checks · typically $500K
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About
General Partner at SOSV and Managing Director of HAX, credited with pioneering the hard tech startup movement and working hands-on with entrepreneurs.
Invests in
Climate TechDeep TechEnergyHardwareHealthtechRobotics
Board director at Labrador Systems
Intro paths
In turn, Cyril can intro founders to Labrador Systems's investors below.
Labrador Systems's investors · 5
Co-founders at Labrador Systems

Incoming Series Seed Director. at Amber Agriculture
Intro paths
In turn, Cyril can intro founders to Amber Agriculture's investors below.
Amber Agriculture's investors · 5
Co-founders at Amber Agriculture


Experience
- SOSVGeneral Partnercurrent2010 — presentShenzhen, San Francisco Bay Area, Singapore
- RETVRNFounder / Managing Directorcurrent2024 — present
- HAXFounder / Managing Directorcurrent2011 — presentShenzhen, Bay Area
- TechCrunchContributorcurrent2012 — presentSan Francisco Bay Area
- Nanyang Technological University SingaporeUniversity Lecturercurrent2024 — presentSingapore
- SG Growth CapitalInvestment Panelcurrent2025 — presentSingapore
- LAB7Advisorcurrent2025 — present
- The Knowledge Society (TKS)Mentorcurrent2023 — presentToronto, Ontario, Canada
- Relocalisations.frAdvisorcurrent2021 — present
- LaPlaceKeynote Speaker, Moderator, Panelistcurrent2007 — presentSingapore
- SEEDS CapitalBoard Member2024 — 2025Singapore
- 500 StartupsMentor2010 — 2017
- TechStarsMentor2010 — 2016
- Orbit VenturesFounder & Managing Director2010 — 2014
- TBWA\E-GRAPHICS ChinaFounder & Managing Director2008 — 2010China
- TEQUILA / TBWA Advertising AgencyDirector2006 — 2008Tokyo, Japan
- Air France-KLM groupSales and Service Center Director2003 — 2006
- AdidasStore implementation Project Manager2003
- CarrefourE-commerce Project Manager2002 — 2003Beijing
Skills & more
+12 more
Business PlanningProduct DevelopmentAngel InvestingMarketing StrategyOnline AdvertisingSEMBusiness ModelingMobile MarketingManagementStrategyLeadershipForesightLanguages Chinese · English · French · German · Japanese
- Mergers and Acquisitions — Columbia Business School
From Cyril's professional profile.
Deals · 2
Amber AgricultureBoard seat
via SOSV · filed Jul 2020 · $2.2M raise
Labrador SystemsBoard seat
via SOSV · filed Feb 2020 · $2.5M raise
Attribution from SEC filings, press coverage, and firm rosters.
Other disclosed investments
Investor
ACiiSTAI Motion SportsAisightALCHEMAAllozymesAlpine LabsAlterra RoboticsAmbrosiaAmperAngelListAntePlasticsArduboyAroma BrewingAroviaASIOTAvidbotsAxem NeurotechnologyAylienBabybeBackbone Labs, Inc.BartesianBe WearableBeetl RoboticsBerkeley UltrasoundBeyondBitomeBlinkiverseBloom LifeBombfellBrainbotBreatherBreeziBreezi.ioBuzzwareCaldo Restaurant TechnologiesCarbon RoboticsCarvCHEGLASSChiShenMaCinemoodCircadia HealthClarity MovementCornerCriamCrowd SupplyCurioDarmaDeepSpinDigi.BioDispatchDiviGasDrip.aiDuKorp StudioDustcloudEboticElectroloomElephant RoboticsElwingEmberlightEMYSEng X LtdenoEverpurseEzeecubeFabuleFairmartFarmshelfFeel TherapeuticsFeetmeFindsterFlairFlow NeuroscienceFlowbiofoc.usFogo DigitalFoodmarbleFormlabsFrobotFuller VisionFuzzy FlyersGardenSpaceGIROPTICGoBoneGogglePalGrant & UnionGraspGreen Li-ionGroboGroundedAIHabitawareHackster.ioHarae Dx Corp.HeliosHexAirbotHexibotHisensHoardHydrostasisiBaby LabsImpact BiosystemsInboltIncident TechnologiesIntelligent ImplantsJapet MedicalJOY FamilytechKAMARQKEYi TechKiLife TechKindaraKitchBotKniterateKNOTKoalaSafeKokoon TechnologyKolibreeKolibriKytchLady Technologies IncLeadoptikLeap MotionLexxPlussLief TherapeuticsLightLightUpLiLoE LabsLiluLinkitzLIRLIVIN farmsLooking Glass FactoryLugLocLumenCacheLura HealthM5StackMadadaMaetelMaieutic Enterprises IncorporatedMarginizeMechasysMesh++MinutMOAIMofilyMojoMolecule SynthMonogram Creative ConsoleMoonaMotivMy.FlowNaranNéitNeurocessNEURODENext Thing CoNiwaNordetectNotchNUA RoboticsNuadaNupeaknuraOombaOpentronsOptimize HealthOrderWithMeOuro_boticsParticlePetcubePetronicsPhoton FluidPicBuyPillsyPixl ToysPlecobotPreemadonnaPressoPryntPulse IndustrialPycnoQ5D TechnologyQPDQuitbitQuixhopQwasar Silicon valleyQzense LabsRational RoboticsRayIoT Solutions Inc.Reach IndustriesRebartekRevol TechnologiesRightbotRoadieRoadie Music by Band IndustriesRobo WunderkindRoboDeckRobolinkROVENSORxAllSamphire NeuroscienceSana HealthScootersonSECOPEShapeMeasureShaperShenzhenWareShot StatsSidework SolutionsSimbe RoboticsSkygaugeSlick TechnologiesSmartex.aiSmarTotsSmartShepherdSolidFace TechnologySomaticSONICAMSplitforceStaeSungreenh2SupplyBetterSwap RoboticsSwapBotsSWJ TechnologySyrmoTapplockTarantula RoboticsTeamosaTensorfieldThe Alpha Labs IncThird EarTIER MobilityTin WhiskersTinselTrainerbotTrainerboticsTrendy ButlerTrippalUnbox RoboticsUnicorn BiotechnologiesUnspunUnsupervised AIVertiqViaBotVibeaseVici RoboticsViDiVigoVITALI WearVolteraVoltStorageVox TechnologiesVST TechnologyWalkies LabWazerWearPointXn HealthXroboticsYeelinkZennea TechnologiesZeraphZiO Health
Sources: SEC Form D filings · curated public sources.
Colleagues at SOSV
Network11
Investors connected to Cyril in public investor directories — a warm-intro map.
Frequently asked questions
- Who is Cyril Ebersweiler?
- General Partner at SOSV and Managing Director of HAX, credited with pioneering the hard tech startup movement and working hands-on with entrepreneurs.
- Where does Cyril Ebersweiler work?
- Cyril Ebersweiler is General Partner, SOSV & Managing Director, HAX at SOSV and Board director at Labrador Systems and Incoming Series Seed Director. at Amber Agriculture.
- What does Cyril Ebersweiler invest in?
- Cyril Ebersweiler invests in Climate Tech, Deep Tech, Energy, Hardware, Healthtech, Robotics.
- What check size does Cyril Ebersweiler write?
- Cyril Ebersweiler typically writes checks of $250K – $5M.
- What boards does Cyril Ebersweiler sit on?
- Cyril Ebersweiler holds tracked board seats at Amber Agriculture, Labrador Systems.
- What companies has Cyril Ebersweiler invested in?
- Investments tracked here include ACiiST, AI Motion Sports, Aisight, ALCHEMA, Allozymes, Alpine Labs, Alterra Robotics, Amber Agriculture, Ambrosia, Amper, AngelList, AntePlastics, and 251 more.
- Where did Cyril Ebersweiler go to school?
- Cyril Ebersweiler studied at Université de Poitiers (BA, Business Law); IAE FRANCE - Écoles Universitaires de Management (Master, Commerce & International Management).
Same school
Also attended Université de Poitiers16
+ 10 more
Also attended IAE FRANCE - Écoles Universitaires de Management16
+ 10 more
Shared employers
Also worked at The Knowledge Society (TKS)12
+ 6 more
Also worked at 500 Startups317
+ 311 more





























































