Investors / Greece / Marathon Venture Capital
Marathon Venture Capital
Venture capital · Athens, Greece · Europe
Marathon Venture Capital is an Athens-based venture capital firm that leads seed rounds and follows up in Series A and Series B rounds to maintain its pro-rata. It supports portfolio companies with recruitment, strategy, legal and compliance, fundraising and network access.
Invests inAI & Machine LearningCybersecurity
In its own wordstechnologyseed stagegreeceeuropeaisoftware
Your fit with Marathon Venture Capital
Four questions about your startup
See how your round matches what it backs, point by point.
Or find every investor that fitsMarathon Venture Capital lists 22 checked portfolio companies on its own site. Its largest themes are AI & Machine Learning (38%), Cybersecurity (19%) and Healthcare & Biotech (11%). 33% of its companies are based in United Kingdom. It invests most often alongside 201 Ventures, 83North and Air Street Capital.
No funding round on record names Marathon Venture Capital yet, so the figures come from its portfolio page.
Round figures show recent activity, not Marathon Venture Capital's whole history. Rounds on record name 0 companies; its own site lists 22. Funding rounds are complete from mid-2025, so counts and the yearly trend undercount a firm that invested before then. The portfolio, themes and places come from its own site and are not affected.
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| AI & Machine Learning | 38% | 18% |
| Cybersecurity | 19% | 4% |
| Healthcare & Biotech | 11% | 15% |
| Real Estate & Construction | 11% | 3% |
| Education | 8% | 7% |
| Industrial & Manufacturing | 5% | 7% |
| Fintech | 3% | 12% |
| E-commerce & Marketplaces | 3% | 6% |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| 201 Ventures | 1 |
| 83North | 1 |
| Air Street Capital | 1 |
| Bain Capital Ventures | 1 |
| Bessemer Venture Partners | 1 |
| Brighteye Ventures | 1 |
| DCG | 1 |
| Darkmode Ventures | 1 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 55th | 22 companies |
| Recent activity | 46th | 0 rounds in 12 months |
| Early stage | 54th | 0% of entries at pre-seed or seed |
| Evidence | 52th | 0% of companies confirmed by a round |
| Sector focus | 70th | 38% in its largest sector |
| Reach | 84th | 6 countries |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers22100%
- No longer answers00%
- Points to another company00%
- Parked or sold domain00%
A site that stops answering three checks in a row is counted as no longer answering; that is not proof of closure. A site that points to another company is often an acquisition.
Co-investor network
who it backs companies with, and who they back togetherCompare Marathon Venture Capital head to head
portfolio size, rounds, entry stages, themes and the companies both backThree or more firms at once: portfolio overlap.
Portfolio
22 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| The company provides an AI platform for architecture, engineering, and construction firms to review and check drawing sets for code, coordination, and specification conflicts. | AI & Machine LearningReal Estate & Construction | Portfolio page | ||
| Ariadne provides people counting technology using AI-powered signal sensing and Time-of-Flight depth sensing | AI & Machine LearningReal Estate & Construction | Portfolio page | ||
| Augmenta automates building design processes using spatial AI | AI & Machine LearningReal Estate & Construction | Portfolio page | ||
| Avrio accelerates claim payments, boosts liquidity, and empowers clinics to focus on care, not collections. | Healthcare & Biotech | Portfolio page | ||
| Bota Systems produces high-precision force torque sensors for robotics | Robotics & Hardware | Portfolio page | ||
| Causaly provides an AI platform for scientific evidence and reasoning in life sciences. | Healthcare & Biotech | Portfolio page | ||
| Connectly delivers AI agents that sell to, serve and engage customers | AI & Machine LearningE-commerce & Marketplaces | Portfolio page | ||
| The company provides a tender management platform for the Life Sciences industry | Healthcare & Biotech | Portfolio page | ||
| Dataform Lab automates offsite construction by providing a platform for design automation, manufacturing optimization, and supply chain integration. | Real Estate & Construction | Portfolio page | ||
| Delian Alliance Industries develops and manufactures navigation systems for UAVs, such as Osiris GNSS-denied navigation | AI & Machine LearningAI & Machine Learning | Portfolio page | ||
| Hack The Box develops, secures, and assesses AI capabilities in cybersecurity and provides cyber workforce development for organizations and individuals. | CybersecurityAI & Machine Learning | Portfolio page | ||
| LearnWorlds provides LMS software for learning businesses | EducationEducation | Portfolio page | ||
| Lenses.io develops an intelligent platform that oversees and controls real-time data and apps across any streaming infrastructure | AI & Machine LearningCybersecurity | Portfolio page | ||
| Netdata provides monitoring and troubleshooting solutions for various industries and technologies | AI & Machine LearningCybersecurity | Portfolio page | ||
| NoFire AI maps production and identifies changes that broke it, providing proof and drafting reverts for approval and merge. | AI & Machine LearningCybersecurity | Portfolio page | ||
| Norbloc provides software solutions for know-your-customer (KYC) and anti-money laundering (AML) processes | FintechCybersecurity | Page + round | ||
| The company developed ModelFlow, a digital platform for pharma process development | Healthcare & Biotech | Page + round | ||
| Progressive Robotics builds turnkey robotic palletizing systems designed for real-world logistics | Industrial & Manufacturing | Portfolio page | ||
| SMPnet provides autonomous power grid management software | EducationIndustrial & Manufacturing | Portfolio page | ||
| Straion gives every developer's AI agent the company's architecture rules, security policies, and coding standards automatically | AI & Machine LearningCybersecurity | Page + round |
About this data
site last read 5 Nov 2026- Site
- marathon.vc
- Last read
- 5 Nov 2026
- Watching since
- 5 Nov 2026
- Companies checked
- 22
Rates come from what VCinfo has observed since observation_start. Firms tend to remove companies that closed, so early rates understate reality. A company leaving a portfolio page does not mean it closed or exited. An unreachable site means our checks failed, nothing more.
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