In operation since 2025

PhoceaDC-M1

28 Traverse du Moulin de la Villette · 13003 Marseille ·
43.3124 N, 5.3747 E

Sovereign data center with a Tier III design in the heart of Marseille: 1,700 m² of colocation space, 1.2 MW of power and a PUE of 1.2, within the world's 6th largest interconnection hub.
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DC-M1 combines international connectivity, high density and 24/7 local operations.

1,700m²
Total area
600kW IT
IT capacity
250racks
Rack capacity
1.2PUE
Energy efficiency
Tier IIIDesign
Redundancy level
Key features of DC-M1

Three defining choices

DC-M1 combines infrastructure under French control, a rehabilitated existing building in the heart of Marseille and a design built for high-density IT loads.

01
Sovereignty

Your data stays under French jurisdiction

DC-M1 is operated by a company incorporated under French law, with European shareholders and a preference for European suppliers.
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Your equipment and the data it hosts remain in France, under French jurisdiction. Phocea DC's financial and legal independence shields them from extraterritorial legislation, including the Cloud Act and FISA.

European ownership
NO CLOUD ACT EXPOSURE
NO FISA EXPOSURE
Digital sovereignty
100%
European ownership
FR
Governed by French law
02
Rooted in Marseille

A rehabilitated building in the heart of Marseille

DC-M1 is located in a fully rehabilitated existing building in the heart of the 3rd arrondissement, with no new land take and no additional soil sealing.

Its operations teams are on site 24/7 to work directly on our customers' infrastructure.

Rehabilitated building
Zero new land take
24/7 on-site teams
Local data center
100%
Rehabilitated existing building
24/7
On-site teams
03
High density

Infrastructure ready for intensive workloads

DC-M1 is designed to host high-density infrastructure, particularly HPC and AI environments, with several cooling technologies suited to compute requirements, including free cooling, Direct Liquid Cooling and Immersion Cooling.

High density
Tailored cooling
AIR COOLING / FREE COOLING / IMMERSION COOLING
AI / HPC
3 TECHNOLOGIES
Advanced cooling
HPC and AI
High-performance computing
Site capacity

Hosting formats suited to your infrastructure

Technical data sheet · Updated 08/2026
Phocea DC-M1 · Marseille 13003
Total area
1,700m²
Total power
1.2MW
IT capacity
600kW
Racks (approx.)
250
Redundancy
Tier IIIDesign
Energy efficiency
1.2PUE
Availability
99.982%
Density per rack
3-10 kW

4 hosting formats

From a single rack to a private suite, DC-M1 lets you adapt space, power
and interconnection options to your configuration.

½
⅓
⅓ and ½ rack
For small deployments, backup environments or network points of presence.
From 13U
A
B
Full rack
42U, redundant dual power feeds, access control and dedicated power metering.
42U · A/B power
Private cage
A secure, dedicated space with restricted access and a configuration tailored to your equipment.
4 to 20 racks
Private suite
A space fully dedicated to your infrastructure, with secure access and a custom configuration.
Custom quote
Configure your infrastructure in 2 minutes and get an instant estimate.
Power & resilience

A redundant architecture designed for operational continuity

DC-M1 is designed to Tier III principles, with a redundant architecture that allows critical components to be maintained without any planned interruption to IT equipment.

Redundant distribution. Independent A and B paths all the way to the rack, with redundancy across the entire chain.
Latest-generation UPS systems. UPS efficiency above 99%: lower losses, less heat to remove, fewer kWh billed.
Low-carbon batteries. Technology selected for its service life and manufacturing footprint, not just its price.
Backup diesel generators. Automatic transfer and periodic on-load testing.
100% renewable electricity. Dedicated supply contract, in line with our ongoing ISO 50001 certification process.
Per-rack metering. You pay for what you use, and you can see it.
Power chain: schematic diagram
RÉSEAU ENEDIS POSTE de livraison GROUPE A électrogène VOIE A TGBT A tableau général VOIE B TGBT B tableau général GROUPE B électrogène ONDULEUR A batteries + TGHQ A ONDULEUR B batteries + TGHQ B VOTRE BAIE salle informatique double alim. A + B REFROIDISSEMENT groupes froid + CRAH RÉSEAU ENEDIS alimentation principale POSTE DE LIVRAISON point de bascule VOIE A VOIE B GROUPE A électrogène GROUPE B électrogène TGBT A tableau général TGBT B tableau général ONDULEUR A batteries, rendement > 99 % ONDULEUR B batteries, rendement > 99 % TGHQ A distribution secourue TGHQ B distribution secourue SALLE INFORMATIQUE votre baie, double alimentation A + B REFROIDISSEMENT groupes froid, CRAH, secourus par les groupes électrogènes
Simplified diagram.
Cooling & efficiency

Technologies suited to intensive workloads

01

Air cooling

Uses outside air whenever conditions allow, reducing reliance on mechanical cooling.

FREE COOLING
Energy efficiency
02

Direct Liquid Cooling

A cold plate in direct contact with the CPU and GPU removes heat right at the component level. A solution suited to AI clusters and high-density compute environments.

CPU / GPU
AI / HPC
03

Immersion cooling

Equipment is immersed in a dielectric fluid that removes heat efficiently. This technology enables high compute density, with no fans and silent operation.

High density
Silent
PUE 1.2
Energy efficiency
100%
Low-carbon electricity
Waste heat
Recovered for the building
District heating
Connection possible in Marseille
Connectivity

An anchor point between Mediterranean and European networks

Marseille is the world's 6th largest interconnection hub, with 18 subsea cables and direct access to the major international digital routes.
Located at this point of convergence and connected to terrestrial networks running to northern Europe, DC-M1 holds a strategic position between Mediterranean and continental networks.

As a carrier-neutral facility, Phocea DC lets you freely choose your carriers, transit providers and peering points.
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Cross-connects, metro connects and network interconnections let you build architectures tailored to your performance and resilience requirements.

Carrier-neutral
Meet-me room
Dark fiber
IP transit
Peering
Cloud on-ramp
Inter-site interconnection
6th
Largest interconnection hub worldwide
18
Subsea cables in Marseille
24/7
On-site technical teams
Carriers present on site
Security & safety

Multi-layered protection

Security at DC-M1, our first site, relies on several layers of protection: access control, continuous monitoring, fire detection and equipment protection, with local 24/7 operations.

Physical security
24/7 autonomous access: access to your infrastructure without reception staff on site.
Personal badges & two-factor authentication: individual, secure access.
24/7 video surveillance: local and remote monitoring.
Perimeter intrusion detection: protection of site entrances and perimeter.
Secure delivery area: restricted, controlled access.
Fire safety
Dual smoke & heat detection: two independent loops for redundant detection.
VESDA: very early detection of smoke particles, before a conventional alarm is triggered.
Inert gas suppression: water-free, residue-free fire suppression suited to protecting IT equipment.
Operations
24/7 on-site teams: technicians in Marseille for hands-on work on your infrastructure.
Continuous monitoring: supervision of power, cooling and access.
Remote Hands: on-demand work on your equipment, within the defined service scope.
99.982% availability: the availability level associated with a Tier III design.
Certifications & compliance

Recognized standards for your compliance requirements

Phocea DC's certifications let you rely on recognized standards to meet your own security, continuity and compliance requirements.

Certified

ISO 27001

Information security management
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An international standard for structuring information protection, risk management and security controls.

Certified

HDS (scope 1)

Health Data Hosting
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A standard specific to infrastructure hosting personal health data.

Certified

PCI DSS

Payment data security
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A standard dedicated to protecting environments that process payment card data.

Certified

ISO 22301

Business continuity
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A management framework designed to ensure the continuity of critical activities and recovery capability.

In progress

ISO 14001

Environmental management
A structured approach to identifying environmental impacts, setting objectives and improving performance over time.

In progress

ISO 50001

Energy management
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A standard dedicated to controlling and improving energy performance.

Healthcare

HDS · ISO 27001
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Standards suited to the security and hosting requirements of health data.

Banking & finance

PCI DSS · ISO 22301 · ISO 27001
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Payment environment security, business continuity and information security management.

Public sector

ISO 27001 · ISO 22301
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Infrastructure operated in France, under French law, with a security and continuity framework suited to critical environments.

The site in pictures

See DC-M1 before your visit

Explore the data halls, racks, technical areas and power rooms of DC-M1. To go further, arrange a site visit with our teams.

Access & location

In the heart of Marseille,
3rd arrondissement

Located in the La Villette district, DC-M1 offers an urban location that is easy to reach for your teams and contractors.
24/7 site access for authorized operations.

Phocea DC-M1
28 Traverse du Moulin de la Villette
13003 Marseille
Directions →
Site address
28 Traverse du Moulin de la Villette
A7 / A55 highways: 15 minutes
Saint-Charles train station: 10 minutes
Marseille Provence Airport: 35 minutes
Dedicated loading dock and secure unloading area.
Visitor parking on site, on request
The Phocea DC campus

DC-M1 is the first facility on the campus

Marseille · 2025 → 2027
In operation

Phocea DC-M1

La Villette · 1,700 m² · 600 kW IT
Q3 2027

Phocea DC-M2

Marseille · Specs coming soon
Q1 2028

Phocea DC-M3

Marseille · Specs coming soon

The development of DC-M2 and then DC-M3 will gradually expand Phocea DC's capacity in Marseille and support growing needs in colocation, connectivity, cloud, CDN, AI and HPC.

Frequently asked questions

Answers to key questions before you deploy

Is DC-M1 truly carrier-neutral?

Yes. Our data centers are designed to be genuinely carrier-neutral.

Phocea DC does not favor any telecom carrier: our customers are free to choose their connectivity providers based on their needs, technical constraints and costs.

Located at the heart of Marseille's digital ecosystem, DC-M1 offers access to a wide choice of carriers and networks. This neutrality also makes it possible to build multi-carrier architectures and secure the interconnections of your infrastructure.

Your infrastructure, your carrier, your choice.

Can I host health data?

Yes. Phocea DC can host infrastructure that processes health data.

DC-M1 holds scope 1 of the Health Data Hosting (HDS) certification, allowing it to host health infrastructure and data in an environment that meets the applicable regulatory and security requirements.

Our environment also benefits from certifications and security measures suited to organizations with demanding requirements for availability, confidentiality and business continuity.

Whether you are a healthcare provider, a software vendor, a digital health company or an IT service provider, Phocea DC supports you in deploying your infrastructure in a sovereign, secure environment.

What density can I deploy per rack?

Our data centers are designed to host high-density infrastructure.

Racks can be configured for different power levels, up to environments that require high compute density. This makes it possible to support AI, GPU and HPC infrastructure as well as traditional production architectures.

Phocea DC assesses each project based on the required IT power, equipment configuration and cooling constraints in order to propose a suitable solution.

From standard racks to high-density infrastructure, power scales to your project.

Can we visit the site before committing?

Yes, and we actually recommend it.

A visit gives you a first-hand look at our infrastructure, security systems, technical areas and connectivity environment.

It is also an opportunity to talk directly with our teams about your project, your technical constraints and your power, availability and connectivity needs.

Because choosing a data center is a strategic decision, we prioritize transparency and close contact from the very first discussions.

What is the lead time for commissioning?

The commissioning lead time depends on your project and the resources to be deployed.

Once your requirements are validated, our teams work with you to define the configuration of your environment: power, number of racks, connectivity and any specific needs.

We then schedule the handover of your infrastructure so you can deploy as quickly as possible, while ensuring our technical and security requirements are met.

Simple project or complex infrastructure: we build a realistic deployment schedule with you from the scoping phase.

What happens in the event of a grid power outage?

In the event of a grid power outage, continuity of power to your infrastructure is ensured by the data center's backup systems.

Our data centers are designed to keep IT equipment powered in the event of a grid failure, thanks to a redundant electrical architecture that combines UPS systems and diesel generators.

The goal is simple: a public grid outage must not bring your infrastructure down.

Backup systems are designed and tested to take over automatically and keep operations running until normal power is restored.

Let's talk about your configuration.

Your infrastructure in Marseille. Under French law

Tell us what you need to host, your power requirements, your network configuration and your operational constraints.
Our teams work with you to size a custom colocation solution tailored to your infrastructure, power and connectivity needs.