Summary
- Marguerite has invested in PHOCEA DC through its Marguerite III infrastructure fund.
- Equity and bank finance will support a programme of more than €120m in Marseille.
- PHOCEA plans additional edge capacity around an existing sovereign colocation facility.
European infrastructure investor Marguerite has invested in Marseille operator PHOCEA DC, backing an investment programme worth more than €120 million to develop additional edge data centre capacity in the city.
The investment has been made through the Marguerite III fund and is being combined with bank financing. The transaction itself completed in early August but was disclosed on 23 September.
PHOCEA DC opened its first Marseille facility in January 2025. Marguerite describes DC-M1 as a 1.2MW Tier III facility, while PHOCEA’s own technical information separates that into 1.2MW of total power and 600kW of IT capacity. PHOCEA lists its second Marseille facility at 4MW of IT capacity, with commissioning planned for 2027, followed by a third campus phase in 2028.
The operator’s strategy is based on smaller sovereign facilities inside the Marseille market rather than a single hyperscale campus. Its first building serves local authorities, healthcare organisations, businesses, telecoms operators, and managed service providers.
Construction of a second site is expected to begin shortly under the investment programme. PHOCEA’s own roadmap describes a three-site Marseille campus.
Marseille capacity moves beyond cable landings
Marseille has become one of Europe’s most important connectivity hubs because of the number of subsea systems landing around the city and linking Europe with Africa, the Middle East, and Asia. That network position has supported growing demand for interconnection and data centre capacity close to cable landing and carrier infrastructure.
PHOCEA’s model adds a sovereignty angle to that connectivity story. The company says it is funded and operated in France and is targeting organisations that want local control over where data is hosted, alongside low-latency access to Marseille’s network ecosystem.
The physical model is also based partly on reusing urban buildings. PHOCEA says its first facility occupies a rehabilitated building in Marseille’s third arrondissement and targets a PUE of 1.2. Its own plans also reference free cooling, renewable electricity, and recovery of waste heat.
Those claims will ultimately depend on operating performance and the design of subsequent sites, but the approach reflects a wider challenge for urban data centre development. Facilities located close to customers and network hubs have to work within tighter constraints around land, noise, energy, heat rejection, planning, and their relationship with neighbouring uses.
Marguerite’s investment gives the operator long-term infrastructure capital rather than conventional venture funding. The fund manager has invested more than €2 billion across infrastructure and focuses on energy, digital infrastructure, transport, circular economy, and water.
The transaction also provides another example of capital moving into smaller sovereign and edge capacity alongside Europe’s larger hyperscale build-out. New AI campuses attract most attention because of their megawatt requirements, but latency-sensitive enterprise, public-sector, telecoms, and cloud workloads continue to support a separate market for facilities embedded in major network locations.
For PHOCEA, the next stage is physical delivery. The financing package gives it the capital base to move beyond a single operational site, but the investment plan now has to be converted into construction, power, cooling, network connections, and commissioned capacity across Marseille.
