FRA03, the Carrier-Neutral Data Center
Our new data center FRA03 near Frankfurt seamlessly integrates high-performance computing, flexibility, and sustainability to meet your specific requirements.
FRA03
Frankfurt
Germany
maincubes’ IT Capabilities: European, Sustainable, Customer-Focused
maincubes is a leading European provider of state-of-the-art data centers. Drawing on our experience in managing complex data center requirements, we deliver high-performance infrastructures at scale – quickly and with the highest reliability. At the same time, we support our customers in achieving their ESG goals and future-proofing their IT infrastructure through energy-efficient concepts, green energy and waste heat utilisation.
Our new data center FRA03 near Frankfurt seamlessly brings together performance, flexibility and sustainability to meet your specific requirements.
With our flexible solutions, we cater to your individual business model. Whether you require particularly high security standards, such as in banking and insurance, whether the reliability of your cloud services is your top priority, or whether you, as a Managed Service Provider, are looking for a neutral partner to meet your customers’ needs – we implement solutions tailored to your needs.
With our headquarters in Europe and our European ownership structure, we are a fully European company. Data sovereignty is crucial for legal certainty. maincubes’ European data centers ensure that our customers’ data is thoroughly protected by EU laws, preventing unauthorized access by foreign authorities and providing legal clarity. This fulfills the need for a secure colocation solution where all data is guaranteed to remain in Europe.
Sustainability is a continuous theme for maincubes. Our goal is to establish as closed loops as possible at our locations, from sourcing renewable energy to its efficient use in our data centers and the feeding of waste heat into local heating networks. For this purpose, we maintain close contact with the local municipalities.
Construction
16
MW
IT capacity
82000
ft²
Whitespace
3
floors
6
IT rooms
100
%
Renewable Power
Maximum Flexibility in Frankfurt
Frankfurt FRA03 – located in the Frankfurt metropolitan area, one of Europe’s most important digital hubs, with strong ties to the local region.
FRA03
Milestones
Q4/2024
Start of Construction (Phase 1)
Building begins at the Schwalbach site near Frankfurt, and our plans start to become reality. We lay the foundation for another maincubes data center in the heart of Europe: FRA03.
Q3/2025
Start of Phase 2
The second construction phase gets underway. We expand FRA03 and create enough additional capacity to be able to cope with tomorrow’s demanding computing needs.
08/2026
End of Phase 1
The first phase of construction is over. The building is now ready to be used – it provides the optimal infrastructure for your digital business model.
2026/27
End of Phase 2
1 + 2 = FRA03. Both construction phases are completed. With its full capacity, FRA03 enables flexible, sustainable and high-performance infrastructure solutions.
OVERVIEW
All in One Booklet: The FRA03 Brochure
In the brochure “FRA03: Sustainable Performance by Design”, you will find all the information about our new data center near Frankfurt. From the basic concept to a detailed overview of the most important technical specifications. Download it here!
CUSTOM SOLUTIONS
A Data Center Designed to Meet All Your Needs
We gladly go the extra mile for our customers. It’s part of our core philosophy to develop tailored solutions for your individual needs. We are carrier-neutral, allowing you to freely choose the carrier that best suits your requirements. To offer you the widest possible range of technological options, we are technology-independent. Choose between cages or suites depending on your capacity and security requirements. To cool your hardware, both air cooling and liquid cooling are available.
For the highest performance demands, FRA03 is AI-ready and HPC-capable, enabling you to successfully realize your future-oriented business model. With an excellent track record in operating our data centers and a 100 % uptime guarantee (SLA), you can be assured that your services will be available around the clock.
“Our commitment to performance goes beyond industry standards. We do everything we can to ensure that customers receive secure and tailor-made solutions for their requirements.”
Oliver Menzel
CEO
FRA03 at a Glance
| Site and building |
| Size of plot: 17,000 sqm |
| Size of building: 27,000 sqm |
| 3 floors for IT with 2 rooms on each one |
| 100 % renewable energy from regional power companies |
| Fire protection includes early detection and an automatic fire extinguishing system employing nitrogen |
| 24/7/365 access and on-site security staff |
| Available as of Q3/2026 |
| Network Infrastructure |
| Carrier-neutral data center |
| Carrier link via separate, redundant entry points in the building |
| SLAs, contracts and data privacy |
| 100 % uptime guaranteed (SLA) |
| Customer service desk and customer portal |
| Customer data remain auditable in Germany/EU |
| IT capacity and rooms |
| IT capacity: 16 MW |
| IT area: 7,680 m² |
| Service |
| mainrack |
| maincage |
| mainsuite |
| mainconnect |
SUSTAINABILITY
In Harmony with the Environment
FRA03 is not only green on the outside, but also on the inside. Secured by a long-term Power Purchase Agreement (PPA), our new data center obtains 100 % of its electricity from renewable energy sources. We are constantly working to maximize the energy efficiency of our data centers, which is reflected, among other things, in our planned EMAS certification.
We feed the heat generated during the operation of FRA03 directly into a local heating grid for further use, thereby achieving the most efficient energy cycle possible. Such a high degree of sustainability is only possible through close cooperation with local stakeholders.
“Data centers in Frankfurt are operating at their highest capacity ever. Companies that will need capacity in the next few years should act now.”
Patrick Schütz
CRO
REQUEST
Secure Your IT Capacity in FRA03 Now
Take advantage of this opportunity and secure capacity in our new FRA03 data center now. Opt for sustainable performance and customized solutions.
WE’RE HERE FOR YOU
Any Other Special Requirements?
We operate several additional data centers with varying features, both in Frankfurt and in other metropolitan regions. Whether you’re a government agency, a medium-sized enterprise, or a hyperscaler – we’ll find the best solution for you. Contact us, we’ll be happy to advise you.