Nessus Data Center 3
Welcome to Stadlauer Straße 66, 1220 Vienna

Nessus Data Center 3
On May 1, 2025, the state-of-the-art NESSUS Data Center 3 commenced operations, adding a further site in the north of Vienna to complement the existing infrastructure in the south of the city.
Certified to EN 50600, the data center was designed in line with Green IT and sets new standards in energy efficiency, sustainability and security. As a Green Data Center, Nessus Data Center 3 (NDC3) meets the highest requirements for availability and the protection of sensitive data.
With fully redundant power and fiber connectivity, multiple emergency power systems, fail-safe UPS and cooling systems, ISO 27001 certification and TÜV certification “Trusted Site Infrastructure – Level 3”, the data center offers a first-class environment for server housing at the highest level.
Rely on maximum fail-safety, state-of-the-art technology and sustainable performance!
Ready for your requirements – today and tomorrow
With NDC3, we are not only providing additional space, but a consistently evolved infrastructure designed for stability, efficiency and future-proofing. Whether you want to expand existing systems, safeguard critical processes or reliably operate new, compute-intensive services and technologies – our new data center is ready.
Secure capacity now at one of Austria’s most modern data center locations!

NDC3 at a glance
- Address
- Stadlauer Straße 66, 1220 Vienna
- In operation since
- May 1, 2025
- Total area
- 2,400 m²
- Certifications
- EN 50600, ISO 27001, TÜV “Trusted Site Infrastructure – Level 3”
- Connected load
- 14 megawatts
- Emergency power
- 5 in-house diesel generators, dynamic diesel UPS
Technology & security
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ISO 27001 certified
Our data centers are naturally state-of-the-art and ISO 27001 certified.
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Trusted Site Infrastructure
The TÜV certification “Trusted Site Infrastructure – TSI Level 3” confirms the highest standards in operational security and infrastructure quality.
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Central security control
All security systems are centrally visualized, controlled and logged via a computer-controlled system – for maximum oversight and efficiency.
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100% sustainability
We source the energy for our data centers from 100% renewable sources such as hydropower or green electricity.
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14 megawatts of connected load
5 in-house diesel generators and redundant transformers supply the data center with sufficient energy.
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Dynamic UPS technology
Reliable power supply with dynamic diesel UPS and kinetic short-term storage ensures maximum fail-safety.
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Fail-safe cooling supply
The cooling supply is designed with n+1 redundancy, ensuring full performance even during failures or maintenance of up to two chillers.
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Fire protection with a system
Effective fire protection through structured fire compartments, fire barriers and early fire detection – for maximum safety in data center operations.
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Efficient gas extinguishing system
Our Inergen gas extinguishing system with a high-performance extinguishing control unit ensures fast and reliable fire protection – even under extreme risk conditions.
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Efficient delivery logistics
The building is optimally planned to transport IT equipment and technical devices easily and smoothly from the ground floor to the point of use.
Connectivity in the data center
- Upstream carriers
- Nessus, TeliaSonera, Colt, Interoute, Intelliquent, Core Backbone, Centurylink, DTAG, Turk Telekom, next layer, Anexia, Magenta, A1
- Fiber carriers
- A1, Magenta, Hutchison/Drei, Colt, next layer, Wien Energie, Cable Runner, Jumper
- Direct connection to internet exchanges
- VIX1, VIX2, AMS-IX, DE-CIX, SWISS-IX, PEERING-CZ




















