EXA Infrastructure Removes Major European Network Bottleneck with Marseille–Paris Route Upgrade

EXA Infrastructure, the largest dedicated digital infrastructure platform connecting Europe and North America, today announced a major investment to enhance network diversity and capacity between Marseille and Paris.

EXA Infrastructure Removes Major European Network Bottleneck with Marseille–Paris Route Upgrade

Key takeaways

  • EXA Infrastructure announced a major investment to enhance network diversity and capacity between Marseille and Paris on October 20th 2025
  • For more than 15 years the Marseille–Paris corridor has been a key bottleneck for traffic between southern Europe, North Africa, and the rest of the continent
  • The result is two fully diversified, low-latency routes with scalable modern fibre serving this critical corridor
  • The announcement follows EXA’s recent €1.3 billion refinancing
  • Steve Roberts says the investment supports hyperscalers, AI and HPC providers, and enterprise customers

Investment in the Marseille–Paris corridor

London, October 20th 2025 – EXA Infrastructure, the largest dedicated digital infrastructure platform connecting Europe and North America, today announced a major investment to enhance network diversity and capacity between Marseille and Paris, addressing one of Europe’s critical connectivity constraints.

For more than 15 years, the Marseille–Paris corridor has represented a key bottleneck for data traffic moving between southern Europe, North Africa, and the rest of the continent. EXA Infrastructure’s latest investment removes this long-standing constraint.

EXA Infrastructure

Two diverse routes between Paris and Marseille

After being the first operator to provide new low-loss G.652D fibre between Paris and Marseille in 2024, EXA Infrastructure is now increasing the fiber count on that route due to unprecedented demand for access to subsea cables. At the same time, EXA is delivering enhanced route diversity between those critical hubs with a new and fully geographically diverse Paris–Dijon–Marseille route, improving resilience for customers across the region. These two investments combine to provide a unique proposition of two fully diversified, low-latency routes with scalable modern fibre serving this critical corridor.

This announcement follows EXA’s recent €1.3 billion refinancing, which has strengthened the company’s capital structure and enabled accelerated investment in its pan-European network. It demonstrates how EXA is deploying new capital to remove historic bottlenecks and expand the capacity of critical digital routes that underpin Europe’s data economy.

What the investment delivers

  • Increased fiber count on the low-loss G.652D route EXA first provided between Paris and Marseille in 2024
  • A new and fully geographically diverse Paris–Dijon–Marseille route
  • Improved resilience for customers across the region

Comment from Steve Roberts

“Enhancing network diversity and removing long-standing constraints like the Marseille–Paris corridor is central to our mission of delivering a more resilient and scalable digital infrastructure for Europe,” said Steve Roberts, SVP Network Investments and Products at EXA Infrastructure. “This investment directly supports the needs of hyperscalers, AI and HPC providers, and enterprise customers who depend on high-performance, low-latency connectivity.”

Part of a broader strategy

The Marseille–Paris routes form part of EXA’s broader strategy to remove major European network bottlenecks, strengthen connectivity between key hubs, and support growing demand from data-intensive industries. It further reinforces EXA’s position as the leader in pan-European connectivity and infrastructure innovation.

About EXA Infrastructure

EXA Infrastructure is an award-winning portfolio company of I Squared Capital and the largest dedicated digital infrastructure platform throughout Europe, connecting North America and Asia via the Middle East. With over 20 years of experience in building resilient networks, EXA Infrastructure provides the critical modern infrastructure and unrivalled engineering expertise that serves as the backbone for digital and economic growth. This includes mission-critical networks for governments and enterprises, hyperscale infrastructure for the world’s most innovative and influential businesses, and ultra-low latency, high bandwidth networks for financial, gaming and broadcast services. Headquartered in London, the company owns 155,000 kilometres of fibre network across 37 countries, including six transatlantic cables and the lowest latency link between Europe and North America. For more information, see exainfra.net.

Frequently asked questions

Who is EXA Infrastructure?

We own and operate 180,000 route km of fibre and duct across 31 countries, with nine transatlantic cable systems connecting Europe and North America. Backed by I Squared Capital, and run as a pure-play infrastructure company, independent of any hyperscaler or cloud.

What does EXA Infrastructure sell?

Dark Fibre, Spectrum, Wavelengths and Ethernet on routes we own, a Managed Fibre Network (MFN) where we run the network on your behalf, colocation at cable landing stations and amplifier sites, and technical services from design and build to full network outsourcing.

Where does the network reach?

Across Europe and the Atlantic: terrestrial routes from the Nordics to the Mediterranean and the Balkans, nine transatlantic systems into North America, and corridors extending east toward the Caucasus.

Who does EXA Infrastructure serve?

Hyperscalers, NeoClouds and content platforms, carriers and service providers, financial markets, and governments and critical infrastructure operators: organisations that want the physical layer on their own terms.

How do you buy from EXA Infrastructure?

Long-term IRUs to hold capacity outright, flexible leases without the long commitment, or fully managed services. The model is yours to pick; the network is the same either way.

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