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

Infrastructure You Can Rely On for Citizen Services

Compliance. Continuity. Sovereignty. Trusted by the public sector across Europe.

Infrastructure for trusted public services

Kolo delivers EU-based colocation designed for public sector resilience. Whether you’re a government agency or a state-owned utility, we help you safeguard critical systems, ensure data sovereignty, and maintain full operational control.

With options like Electromagnetic Pulse protection (EMP), 24/7 guarded facilities, and built-in compliance support, our infrastructure protects essential services today and tomorrow.

Why leaders trust Kolo

Secure citizen data. Keep services running. Meet compliance—on infrastructure, governments trust to deliver.

Citizen Data Sovereignty 

European-owned infrastructure. Your data stays local, under GDPR, and fully under your control.

Mission-Critical Uptime

Redundant power, cooling, and connectivity—built to keep your services online, always.

Built-In Compliance 

GDPR, NIS2, ISO certifications, and sector-specific compliance embedded in infrastructure design with audit-ready documentation.

Unmatched Support

From deployment to daily ops, our local teams are on call and on site—so your platform never stalls.

Advanced Security

Biometric access, 24/7 surveillance, and custom EMP-secure zones for public workloads that can’t go down.

Sustainable Operations  

Renewable energy and recovered waste heat. Support for your ESG commitments with transparent environmental reporting.

High-Security Facilities

With Kolo, your data remains under European jurisdiction at all times. We help you meet GDPR, NIS2, and national requirements with expert support and full transparency. You maintain ownership, oversight, and confidence.

EMP-Protected Colocation

Protecting national resilience starts with infrastructure you can count on. Our EMP-protected environments are tailored to meet the needs of the public sector, ranging from individual racks to entire data halls. We adhere to military-grade standards and provide comprehensive audit documentation to support your compliance and assurance processes.

Secure Data Processing

European control for sensitive government data

Process sensitive information safely using infrastructure built to meet government security standards:

  • Fully EU-owned – Our facilities are completely European-owned, ensuring your data remains protected within the European Union.
  • Secure, trusted support – Our staff has the necessary security clearances to support your needs safely.
  • Flexible security areas – Select different protection levels tailored to your specific security needs.
  • Easy-to-audit compliance – Full documentation and controlled access to help you pass regulatory checks.

Perfect for government agencies that handle classified information, citizen data, or confidential research.

Disaster recovery & continuity

Keep government operations running with infrastructure spread across multiple locations:

  • Flexible capacity – Easily scale up during peak periods to meet higher demand.
  • Multiple sites – Place your systems at different locations in the Netherlands, Sweden, and Denmark.
  • EMP protection – Specialized shielding to protect critical infrastructure against electromagnetic threats.
  • Rapid emergency response – Receive support within 30 minutes for critical government systems.
Workplace continuity options

Environmentally friendly colocation for public sector providers who care about the environment.

In the event of an incident or as part of your regular operations, we offer temporary or long-term workplaces at select locations. These secure offices, either on-site or nearby, enable your staff to keep working close to critical systems, helping you maintain operations and respond quickly in emergencies.

AI-ready colocation infrastructure

High-performance solutions for AI workloads

  • EU data control – Store and process AI training data securely within Europe.
  • Powerful computing – High-capacity racks (50kW or more) with efficient cooling for AI workloads.
  • Metro locations – Low-latency connections to major European cities, ideal for real-time applications.
  • Northern Sweden capacity – Cost-effective facilities powered with renewable energy for training AI models.
  • Flexible connectivity – Direct links to major cloud providers.

Ideal for organizations working with AI diagnostics, research, or similar projects.

Hybrid cloud connectivity

Connect established government systems with modern cloud capabilities:

  • Secure cloud connections – Private links to government clouds and sovereign alternatives
  • Legacy system integration – Bridge traditional IT infrastructure with cloud-native applications
  • Compliance-maintained – Hybrid architectures that preserve regulatory requirements
  • Vendor independence – Avoid cloud lock-in.
Remote operations

Our expert technicians are available 24/7 to assist with on-site tasks. We can staff your environment with personnel holding the necessary government clearances, giving you the confidence to delegate even sensitive operations.

Modular, scalable infrastructure

Emergencies don’t wait for long lead times. You can scale rapidly with Kolo’s modular design, adding capacity in weeks, not months. Ideal for surges, elections, or national programs.

Sustainable by design

Our infrastructure is powered by renewable energy and built to meet stringent environmental standards, enabling public sector organizations to reduce emissions without compromising uptime. With transparent reporting, efficient design, and heat reuse at select sites, we support ESG mandates and long-term sustainability goals.

Where you run your infrastructure shapes your emissions. Want to see the impact?

Calculate your carbon footprint

See the carbon savings. Compare your current infrastructure footprint with our 100 % renewable data centers in Sweden, and discover the impact on ESG goals and cost efficiency.

Research partnership

Making AI’s energy footprint visible in real-time

The first system to measure environmental impact where AI actually runs

Kolo is partnering with the University of Stuttgart on the NADIKI project to build real-time, workload-level visibility into AI’s energy use. Instead of estimating carbon impact, we’re tracking it, live, at the infrastructure layer.

Funded by the German Federal Ministry for the Environment through the Artificial Intelligence for Environment and Climate initiative.



Municipal innovation in action

Discover how a Municipality in Denmark improved its digital infrastructure to enhance citizen services and reduce costs and environmental impact.

”We’ve had a long-standing partnership with Kolo because of the people, the flexibility, and the way they respond. It’s not about the price – it’s about how easy they make things.”

Harry Immeker, Senior Consultant, Vooruit

Ready to discuss your infrastructure requirements?

Our specialists are ready to help you secure your public-sector operations sustainably, securely, and with full compliance.