Serverius and Fuzion are now part of Kolo, a Northern European data center platform.

Kolo data centers across Northern Europe

Colocation infrastructure built for scale, powered by trust.

Your ideas need a home

Strategic locations, seamless interconnection

From Amsterdam to Aarhus and Sweden’s Arctic region, Kolo operates high-performance data centers that help global enterprises grow securely, sustainably, and on their terms. With low-latency access across Europe and renewable energy at the core, Kolo gives your ideas a home where digital infrastructure thrives.

Our sites are positioned to maximize reach, performance, and compliance:

  • Sweden: A green, resilient hub for high-density, compliance-driven workloads.
  • Netherlands: A European interconnection hub, minutes from AMS-IX and NL-IX.
  • Denmark: A secure, sovereign platform with direct fiber and subsea reach across the EU and Nordics.

Infrastructure that moves with you

Whether you’re deploying a hybrid edge node, a multi-region backbone, or disaster recovery, Kolo’s unified platform supports fast, flexible, sovereign colocation.

Deploy in Weeks

Modular colocation delivered fast, so your hybrid edge or disaster recovery node is ready when you need it.

GPU & HPC Ready

Native support for GPU, HPC, and AI workloads on a platform designed to handle intensive, next-gen compute.

High-Density Efficiency

Climate-optimized cooling supports up to 50 kW per rack without compromising sustainability or performance.

Seamless Across Sites

Move workloads easily between Kolo sites for resilient, distributed architectures and multi-region scaling.

Built-in sustainability, from grid to rack

Every Kolo site uses certified renewable energy and reduces environmental impact without compromising performance.

  • 100% renewable energy at our Swedish and Danish sites
  • Heat reuse programs in Stockholm and other select locations
  • Naturally cool Nordic climate reduces mechanical cooling demand
  • Power Purchase Agreements (PPAs) provide cost stability over time

Trusted by critical industries

Kolo facilities meet the highest standards for continuity and physical security, trusted by leaders in finance, biotech, energy, and government.

Secure by design

Our facilities deliver Protection Class 3 physical security at key sites, with redundant sovereign infrastructure and direct access to local expert engineers.

Support that’s built in, not bolted on

Service isn’t an add-on with Kolo. It’s embedded in every deployment, keeping you in control from first install to long-term optimization.

  • SLAs aligned with workloads
  • Direct-to-engineer contact, not call centers
  • Remote hands, staging, and smart hands
  • Proactive monitoring and insights
  • Expert onboarding for secure go-lives

Explore Kolo locations

Choose the best-fit environment for your workloads across Europe.

Denmark

Agile Nordic infrastructure with sovereign connectivity.

The Netherlands

Digital gateway to Europe with low-latency interconnection.

Sweden

High-density, climate-optimized colocation for compliance-driven workloads.

Talk to a Kolo expert

Find the best-fit strategy for your growth, compliance, and performance needs.