Marathon Venture Partners

Venture Capital

Marathon Venture Capital is a seed-stage fund helping ambitious Greek and European founders build world-class technology companies.

Athens, Greece · 22+ investments · 12 portfolio companies

Early Stage
Seed
Artificial Intelligence
Biotech
Cybersecurity
SaaS
agri-tech
Headquarters
Athens, Greece
Founded
2017
AUM
$175.0M
Portfolio Companies
12
Total Investments
22
Last Investment
Mar 2026
Geographic Focus
Greece, Europe

Investment Thesis

We back founders building the future we need. Leading seed rounds with full support and expertise for ambitious tech companies.

Marathon Venture Partners is a Venture Capital firm based in Athens, Greece. It has made 22 investments in Artificial Intelligence and Biotech, including Moosend, Union.ai and Netdata.

Portfolio12

Co-investors24

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24 co-investors across 27 shared portfolio companies — who they back alongside, and how often they lead.

Venture Capital ×20 · Corporate VC ×1 · Growth Equity ×1 · 28 shared rounds

Investment History

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