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Marathon

Marathon

Venture Capital

Marathon Venture Capital is a seed-stage fund backing ambitious founders in creating technology companies.

Portfolio

5

companies

AUM

£175M

under management

Investment by month

By category

  • EdTech£54.0M
  • AI/ML£21.2M
  • ConstructionTech£1.1M

By location

  • United Kingdom£54.0M
  • London£22.3M

Portfolio companies

Causaly

Causaly

Causaly builds a biomedical knowledge platform that helps researchers navigate scientific data.

Dataform Lab

Dataform Lab

Dataform Lab provides automation software for offsite construction.

Hack The Box

Hack The Box

Gamified cybersecurity training and talent assessment platform.

PolyModels Hub

PolyModels Hub

PolyModels Hub builds a digital platform for biopharma process development and manufacturing.

SMPnet

SMPnet

SMPnet offers smart technology that allows real-time control and optimisation of power grids.


Team

Panos Papadopoulos

Panos Papadopoulos

Partner

Panos is a partner at Marathon Venture Capital, having previously served as director of product management at Splunk. He also holds board member positions at Straion, Progressive Robotics, SMPnet, and Delian Alliance Industries.

LinkedIn
George Tziralis

George Tziralis

Partner

George is a partner at Marathon Venture Capital and Openfund. He previously founded Askmarkets and hosts Open Coffee Greece.

LinkedIn
AA

Alex Alexakis

Partner

Alex serves as a partner at Marathon Venture Capital, having previously worked as an investor at the firm. He brings product management and technology consulting experience from roles at Blueground, Workable, and Sword Group.

LinkedIn

Recent investments

Series A
£7.0M

Molten Ventures led the Series A round with participation from Marathon Venture Capital to support team expansion and platform development.

"What impressed us most is the PolyModels Hub team’s blend of technical know-how and deep understanding of its customers’ real-world challenges. They’ve built a solution that delivers value in weeks, not years, and its rapid adoption by major pharma companies speaks volumes."
— Ben Wilkinson, CEO
Seed
£1.1M

Marathon Venture Capital led the seed round to support team expansion and product development.

"Developing a drug remains an expensive and time-consuming process. Unlike other industries, product development in pharmaceuticals relies heavily on numerous experiments with minimal knowledge transfer from past products, driven by the expertise and know-how of scientists. We have witnessed first-hand the inefficiencies of traditional drug development, as well as the growing desire and business need to transform this field. Our vision for PolyModels Hub is to revolutionise how scientists, digital teams, and senior stakeholders collaborate to accelerate development efforts and bring breakthrough therapies to market faster than ever. With today’s advanced technology, supportive business context, and favourable regulatory framework, we believe now is the perfect time to realise this vision."
— Antonio Benedetti, Co-Founder and CEO
Seed
£1.1M

Marathon Venture Capital led the seed round to support product development and team expansion.

"We are here to challenge the current industry perceptions about digitalization and automation. Our mission is to increase capacity in construction by optimising the manufacturing performance of offsite factories. Once the day-to-day design-to-manufacturing workflows are automated, the integration of manufacturing automation technologies becomes the obvious, de-risked next step."
— Eva Magnisali, Founder & CEO
Seed
$1.4M

Marathon Venture Capital led the seed round to support international growth and product expansion.

"Our cutting-edge technology revolutionises how power grids are managed across all voltage levels. We are utilising AI-based techniques to enable a net zero future in which power grids are operated dynamically and much closer to real-time while resolving stability issues and effectively ensuring high resilience and security of supply for a better planet. With this funding round from Marathon Venture Capital, we’re excited to double down and continue to realise our vision"
— Anastasios Rousis, CEO and co-founder
Series B
$55.0M

Carlyle led the Series B financing round to support international growth and product development.

"The demands on security and IT professionals have never been greater. An industry-wide talent shortage and an exponentially growing number of cyber threats place great importance on professionals and organizations to maintain best-in-class security practices. Hack The Box is a pioneer in constantly providing fresh and curated training and upskilling content, in a fully gamified and intuitive environment, enabling individuals and organizations to tackle real-world hacking problems. We are excited for the next stage of Hack The Box’s evolution and are proud to be part of this journey."
— Constantin Boye, Director