George Tziralis
InvestorPartner at Marathon Venture Capital · Board director at Velos Rotors
Athens, Greece
Writes $100K – $5M checks · typically $1.5M
About
George Tziralis, an entrepreneur and co‑founder of Open Coffee Greece who helped build Greece's startup community, backs technically strong, research‑heavy teams from Greece and its diaspora for global markets.
Contact· published on George's own website
Invests in
AI & Machine LearningCybersecurityDeep TechEnterprise SoftwareHardwareRobotics
Board director at Velos Rotors
Intro paths
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In turn, George can intro founders to Velos Rotors's investors below.
Velos Rotors's investors · 1
Experience
- Marathon Venture CapitalPartnercurrent2017 — presentAthens, Greece
- OpenfundPartnercurrent2009 — present
- Open Coffee GreeceHostcurrent2007 — presentAthens, Attiki, Greece
- AskmarketsFounder & CEO2007 — 2010
Skills & more
Venture Capital95Early-stage Startups36Entrepreneurship99Prediction Markets17Data Mining30Forecasting22
From George's professional profile.
Deals · 1
Velos RotorsBoard seat
via Marathon Venture Capital · filed Dec 2023 · $2M raise
Attribution from SEC filings, press coverage, and firm rosters.
Colleagues at Marathon Venture Capital
Network9
Alexis HoussouScout
Founder & Managing Partner at HCVC
Apostolos ApostolakisScout
Founding Partner at VentureFriends
Charlie SonghurstScout
Sr. Venture Partner at Acequia Capital (AceCap)
Konstantin VinogradovScout
General Partner at Runa Capital
Alex Alexakis
Partner at Marathon Venture Capital
Chris Gasteratos
Associate at Marathon Venture Capital
Dimitris Maris
Investor at Marathon Venture Capital
Sahar Meghani
Partner at Visionaries Club
Venkat Kondragunta
Principal at Visionaries Club
Investors connected to George in public investor directories — a warm-intro map.
Frequently asked questions
- Who is George Tziralis?
- George Tziralis, an entrepreneur and co‑founder of Open Coffee Greece who helped build Greece's startup community, backs technically strong, research‑heavy teams from Greece and its diaspora for global markets.
- Where does George Tziralis work?
- George Tziralis is Partner at Marathon Venture Capital and Board director at Velos Rotors.
- What does George Tziralis invest in?
- George Tziralis invests in AI & Machine Learning, Cybersecurity, Deep Tech, Enterprise Software, Hardware, Robotics.
- What check size does George Tziralis write?
- George Tziralis typically writes checks of $100K – $5M.
- What boards does George Tziralis sit on?
- George Tziralis holds tracked board seats at Velos Rotors.
- Where did George Tziralis go to school?
- George Tziralis studied at National Technical University of Athens (Doctor of Philosophy - PhD, Operations Research); National Technical University of Athens (Engineer's degree, Mechanical Engineering & Industrial Management).
Same school
Also attended National Technical University of Athens20
Niko BonatsosVerdict Capital founder and pre-consensus investor formerly at General CatalystFivos TsoukatosPrincipal at VentureFriendsApostolos ApostolakisFounding Partner at VentureFriendsMelina MaiPrincipal at Big Pi VenturesAlex EleftheriadisPartner at Big Pi VenturesNikoInvestor at Verdict Capital
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