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Series A Fundraising Guide
Talks about Startup, Fundraising and Venture Capital
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George Tziralis
Partner at Marathon Investor
Greece
Overview
George Tziralis is a Partner at Marathon Venture Capital in Greece, with a strong background in venture capital and entrepreneurship. He has successfully invested in a variety of early-stage startups in sectors such as pharmaceuticals, medical devices, and cybersecurity, including companies like Causaly and Hack The Box.
Tziralis holds a Doctor of Philosophy degree from the National Technical University of Athens and has played key roles in organizations like Openfund and Askmarkets. His track record includes investments in companies like DataForm Lab, Bota Systems, and Welcome Pickups, showcasing his expertise in supporting innovative ventures.
Work Experience
Partner
2017 - Current
We help ambitious founders build world-class companies. Managing €100m in assets, we bring together a fast-growing community of Greek founders and technologists around the globe. Our portfolio companies serve Fortune 500 customers and raise follow-up investments from the likes of Bain, Bessemer, Index and Insight. Investments include netdata.cloud, lenses.io, causaly.com, hackthebox.com, learnworlds.com, augmenta.ag, cuberm.com, centaur.ag, inaccel.com, norbloc.com, codebgp.com and ariadnemaps.com
Partner
2009
Openfund served as the first venture capital fund for technology startups in Greece. We have been privileged to be the first institutional investor in companies such as Taxibeat and Workable. Our final fund concluded its investment period in 2016 and currently manages its existing portfolio.
Host
2007
Open Coffee meetups gave birth to a startup community in Greece. Every month since May 2007, founders and technologists come together to hang out and talk startups. Find more at opencoffee.gr
Founder & CEO
2007 - 2010
Askmarkets offered one of the world's first prediction markets platforms, leveraging algorithmic innovations at a market mechanism level stemming from my PhD research.