Cyril Ebersweiler
InvestorGeneral Partner, SOSV & Managing Director, HAX at HAX · General Partner at SOSV · Board director at Labrador Systems · Incoming Series Seed Director. at Amber Agriculture
San Francisco Bay Area
Writes $250K – $5M checks · typically $500K
About
General Partner at SOSV and founder and co-Managing Director of HAX. An experienced global deep tech investor (250+ investments) who serves as board member/advisor to startups including Formlabs, AngelList, Collaborate (acquired by Cisco), Hackster (acquired by Avnet), and Adore Me, and is a frequent speaker and writer on technology, robotics, health, and crowdfunding.
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 · 3
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.
Colleagues at HAX
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 founder and co-Managing Director of HAX. An experienced global deep tech investor (250+ investments) who serves as board member/advisor to startups including Formlabs, AngelList, Collaborate (acquired by Cisco), Hackster (acquired by Avnet), and Adore Me, and is a frequent speaker and writer on technology, robotics, health, and crowdfunding.
- Where does Cyril Ebersweiler work?
- Cyril Ebersweiler is General Partner, SOSV & Managing Director, HAX at HAX 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.
- 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 Poitiers8
+ 2 more
Also attended IAE FRANCE - Écoles Universitaires de Management7
+ 1 more
Shared employers
Also worked at The Knowledge Society (TKS)3
Also worked at 500 Startups145
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