Marathon Venture Capital

Full package of legal documents required for closing a seed financing round in Greek Private Company

Thoughts, announcements and news from the Marathon team.

The AI SRE that ensures systems are running in the age of AI generated code.

An AI-native security platform to help enterprises safely use autonomous agents

Open positions at Marathon Venture Capital portfolio companies.

The company has built and sold companies, shipped products, and raised money, and now works alongside others.

Marathon provides contact channels for founders, general enquiries, press, and its Athens office.

Marathon Venture Capital is a seed-stage fund that helps Greek and European founders build technology companies.

Hack The Box introduces AI Range Enterprise Edition, a platform for testing whether security agents can perform their assigned jobs. It scores agents by role, tracks pass-or-fail results across environments, and supports repeat appraisals when an agent, its model, or its data changes. The platform also evaluates practitioners in AI-augmented penetration tester and security operations center analyst roles, with more roles planned.

Oct 2026 · SiliconANGLENews article

Dimitrios Kottas’s Delian Alliance Industries secures $14 million to build defense technology from Athens, bringing its total funding to $22 million. The startup operates solar-powered surveillance towers that monitor Greek borders and detect wildfires, and is developing concealed autonomous aerial and sea drones. Air Street Capital and Marathon Venture Capital lead the latest funding round as Delian seeks to expand across Europe’s fragmented defense market.

Jul 2025 · TechCrunchNews article

Marathon Venture Capital closes a €75 million fund, bringing its total assets under management to €175 million. The Athens seed investor cites the sale of portfolio company Augmenta to CNH, valued at $110 million, and a secondary sale of Hack the Box shares among its realizations. Marathon backs founders tackling difficult problems in important markets and says its portfolio companies primarily serve global customers.

May 2025 · TechCrunchNews article