Marathon Venture Capital
Marathon Venture Capital is a seed-stage venture capital firm located in Athens, Greece, founded in 2017. The firm is dedicated to fostering innovation by partnering with ambitious Greek and European founders to build world-class technology companies. With a recent increase in its Fund II size to €70 million, Marathon combines deep local roots with a global vision, acting as a strong supporter of impactful startups. Marathon provides conviction capital and hands-on support, offering strategic guidance to help founders navigate the complexities of scaling their businesses. The firm leads seed
Investing activity
Marathon Venture Capital appears in 2 AI deals tracked by the AI Lounge deals desk, and led 1 of them. The rounds are mostly Pre-seed and Seed, with a median round size of $1M. The most recent are Astute (Pre-seed, €1.03M, Aug 2026) and Straion (Seed, €1.1M, Mar 2026).
Marathon Venture Capital most often invests alongside Silicon Gardens, Entrepreneurs Roundtable Accelerator, Flyer One Ventures and Greece, and the companies it backs on AI Lounge are mostly in AI.
Deals
Frequently asked questions about Marathon Venture Capital
What AI companies has Marathon Venture Capital invested in?
Marathon Venture Capital's AI investments include Astute and Straion. The 2 rounds on AI Lounge are listed on this page with amounts, dates and co-investors.
Where is Marathon Venture Capital based?
Marathon Venture Capital is based in Athens, Attica, Greece.
What stage does Marathon Venture Capital invest at?
In the rounds tracked on AI Lounge, Marathon Venture Capital has invested at Pre-seed and Seed, with a median round of $1M. Marathon Venture Capital led 1 of those rounds.
Who does Marathon Venture Capital co-invest with?
Marathon Venture Capital's most frequent co-investors on AI Lounge are Silicon Gardens (1 deal), Entrepreneurs Roundtable Accelerator (1 deal), Flyer One Ventures (1 deal) and Greece (1 deal).
How can founders reach Marathon Venture Capital?
Founders on AI Lounge can see Marathon Venture Capital's contact details in AI Investor Contacts (paid plans), check for a warm introduction through members who worked with the firm under Warm Paths, and add Marathon Venture Capital to their Investor Pipeline to track the conversation.