We back the founders building the future we need
You envision, we believe. You build, we support.
We are leading seed rounds and strive to offer our full support and expertise to each company we partner with.
News
Pallma AI raises $1.6m Pre-Seed to secure AI agents
An AI-native security platform to help enterprises safely use autonomous agents

Alex Alexakis
PolyModels Hub Raises $9m to Build Biopharma’s Digital Backbone
Helping the largest pharmaceutical companies deliver breakthrough therapies faster

Alex Alexakis
The Greek Startup Compensation Report 2025
A survey about compensation and equity in startup roles in Greece

Alex Alexakis
Delian Series A, the time is now
Delian raises $14m in a pivotal moment to protect sovereignty in the age of autonomous systems.

Panos Papadopoulos
Global Community
Connect with the Marathon VC team and peers at events around the world. We have hosted events across 11 countries.
🇬🇧
Greeks In Tech London
Event completed🇬🇷
Open Coffee Athens #127
Event completed🇬🇷
Open Coffee Athens #126
Event completedResources
We believe transparency is key to a successful relationship. We provide founders the full picture of our terms and processes upfront - so you can avoid surprises and focus on what really matters.







