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

Secure your infrastructure. Without compromise.

Built-in network security to preserve uptime, control, and visibility for your colocated infrastructure.

Your first line of defense

Your network is your foundation and your first line of defense. Kolo protects your infrastructure from high-volume DDoS attacks and evolving operational threats, helping ensure your systems stay online and secure.

Our network security is built in, not bolted on, preserving the uptime, control, and visibility your business needs to operate confidently.

Security by design

We treat security as a baseline, not an upgrade. Kolo’s DDoS protection is engineered and operated by our in-house network specialists, the same team that monitors and maintains our infrastructure around the clock.

By integrating security directly into our platform, we deliver secure connectivity, real-time visibility, and resilient operations by default.

Minimized downtime

DDoS protection reduces risk of service disruption.

Enhanced data protection

Private peering and access controls help secure sensitive data flows.

Optimized performance

Smart filtering preserves application speed.

Built-in continuity

Redundancy supports operations during localized failures.

Scalable defence

Architecture flexes to match changing workloads and threat levels.

Always-On Requires Always-Ready

Every minute of downtime affects more than productivity. It risks customer trust, disrupts operations, and delays progress. Today’s IT leaders face rising pressure to detect threats faster, scale security smarter, and maintain availability across hybrid environments.

At Kolo, we embed proactive, infrastructure-level protection into the core of your deployment, so you’re prepared, not just reactive.

Whether operating locally or across borders, KOLO helps keep your critical network services available, even during major disruptions.

Optional: NOC-as-a-Service

Extend your team with 24/7 expert monitoring and response.

For organizations that need deeper visibility or reduced operational overhead, KOLO’s NOC-as-a-Service extends your team with hands-on support.

Our network operations center provides first-line monitoring, incident triage, and escalation coordination, accelerating response and easing internal workload.

Why security teams choose Kolo

Get the built-in security, direct engineer access, and responsive local support you need to protect your critical systems and keep operations resilient.

Direct expert access

Skip ticket loops and connect directly with senior network security engineers when it matters most.

Trusted in critical sectors

Kolo is trusted by clients in regulated and high-risk industries for secure, dependable operations.

Local, flexible support

Regionally grounded support across Northern Europe, tailored to your operational needs.

Security built in

Security expertise is embedded into our infrastructure from day one, not bolted on later.

Network security capabilities

DDoS protection

Up to 3 Tbps of filtering capacity with multi-layer detection (Layer 3 and 4) to protect against volumetric and protocol-based threats.

Traffic monitoring

Real-time analytics with pattern recognition to identify threats before they impact services.

Secure connectivity

Carrier-neutral access, encrypted transport, and private peering, designed to protect data in motion while avoiding vendor lock-in.

Redundant architecture

Geographically distributed, multi-site failover to ensure continuity even during localized outages.

24/7 monitoring

Continuous oversight and automated alerts for fast issue identification.

Ready to reinforce your network?

Protect your operations with security that’s built in, not bolted on.