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

High-Performance Infrastructure for Modern Retail

Run critical systems with confidence—from transactions and loyalty data to inventory sync and flash sales. Kolo gives you fast, sovereign infrastructure built to handle peak load and sensitive workloads.

Built for Peak Traffic. Trusted for Sensitive Data.

From flash sales to customer profiles, retail infrastructure has to move fast—and stay secure. Kolo delivers compliant, high-availability infrastructure you control. Fully EU-owned. Designed for scale. Ready for Black Friday and every day.

Why retail runs on Kolo

Scale peak traffic. Protect customer data. Run without fail.

European Data Sovereignty

Keep customer data fully under EU control with GDPR- and NIS2-compliant infrastructure, no shared jurisdictions, no ambiguity.

Enterprise-Grade Reliability

Built for uptime. Fully redundant systems ensure real-time availability, even during sales spikes and seasonal peaks.

AI-Ready at Scale

Run real-time AI at the edge or train models in the Nordics. Built-in performance for retail analytics, personalization, and demand forecasting.

Hybrid Cloud Ready

Direct links to AWS, Azure, Google, and sovereign clouds—plus private cloud options through trusted partners. Control where and how you modernize.

Unmatched Support

Hands-on help, 24/7. From deployment to Black Friday, our team’s there when it counts.

Sustainable Operations  

Renewable power across the Nordics. Support ESG goals without compromising speed or uptime.

“Working with Kolo has had a major impact on our resilience, stability and security.  If you don’t hear about IT, it’s running smoothly – and that’s exactly what we have with Kolo.”

Michael Ebenhardt Kristensen, IT manager, Europcar Denmark

Colocation solutions for modern retail ops

Green Infra for carbon-conscious retail

Kolo runs clean, so you can too. Powered by 100 % renewable energy across most locations in Northern Europe, with low PUE and built-in ESG reporting to support your sustainability goals.

Support that matches your pace

We don’t route tickets. We solve problems.

From first install to peak traffic, our on-site and remote teams are trained to act—not escalate. Need a port turned up at 02:00? We’re already on it.

See how others build on Kolo

From global platforms to niche providers, our customers trust Kolo to keep critical infrastructure running—fast, secure, and close to where the work happens. Discover how they address real-world challenges across various industries.

User IT

User IT runs its private cloud on Kolo infrastructure—six years of uptime, full platform control, and zero surprises for mission-critical workloads in Denmark.

Blue and Red

Blue and Red moved TEOS off AWS to Kolo, cutting costs while keeping the high-performance backend their customers depend on.

R8 Technologies

Estonian software firm R8 Technologies chose Kolo for secure, certified hosting in the Netherlands. The result: uninterrupted uptime and a scalable base for international expansion.

Europcar

Europcar Denmark runs its core IT on Kolo, gaining full control, tighter security, and resilient uptime across its distributed teams.

Let’s Build Your Retail Stack

Work with us to design secure, high-performance infrastructure for modern retail ops.