Stokab

Stokab is a municipally-owned company based in Stockholm, Sweden, tasked with building, owning and leasing out passive fibre infrastructure (dark fibre) across the Stockholm region. 

Unlike a typical data-center operator, Stokab does not provide active compute or server hosting services; instead, it provides the foundational connectivity infrastructure — making it a key enabler for data centres, carriers and enterprises seeking robust, low-latency fibre connectivity in the Stockholm area. 

Its strategic significance lies in the fact that Stockholm has one of the densest, most neutral fibre networks in Europe, with Stokab’s network underpinning data-centres, enterprise networks, edge and smart-city infrastructure. 

⚙️ Facility Highlights

• Network of over 2.03 million kilometres of fibre deployed, servicing more than 24,000 access points in the Stockholm region. 
• Fine-mesh, fully routed underground duct system, enabling dual-diverse fibre paths for resilience and redundancy. 
• Fibre product offerings include “Point to Point” and “Star” dark-fibre pairs which allow customers to build their own active infrastructure on top. 
• Presence of many nodes and cross-connect points (600+ cross-connection points) enabling flexibility and rapid provisioning especially into data-centre and colocation environments. 

🔐 Security & Compliance

• Physically buried ducts and sub-conduits offering strong physical protection against environmental and human-induced damage. 
• 24/7 network monitoring and fault-resolution for the passive fibre infrastructure, ensuring high availability. 
• Neutral wholesaler model – Stokab only leases passive infrastructure and does not compete with its clients by offering active services, which supports fair-access and compliance with municipal competition mandates. 

🌐 Connectivity & Carrier Access

• Carrier-neutral: Operators, data centres, enterprises and property owners alike can lease dark fibre from Stokab, thus enabling interconnection, network builds, and edge-deployments without being locked into a specific vendor. 
• Strong pathway diversity: The network is designed to include fully diverse fibre routes between data-centres and nodes, supporting critical applications and reducing single points of failure.
• Collaboration with the Stockholm Data Parks initiative to promote sustainable data centre growth — leveraging Stokab’s fibre infrastructure to support data-centres aligned with heat-reuse and sustainable energy strategies in Stockholm. 

💼 Who It Serves

• Telecom carriers and internet service providers building or expanding metro and intra-city networks in the Stockholm region.
• Data centre operators and colocation providers seeking high-capacity, redundant fibre connectivity and access to multiple data-centre nodes with minimal infrastructure investment.
• Enterprises (banks, insurance, property owners, hospitals, municipalities) requiring dedicated fibre routes (dark-fibre) for private communication networks, backup links, or high-security connectivity. 
• Edge-compute, IoT and smart-city deployments leveraging Stokab’s rich fibre network to reach edge nodes or street-level interconnect points with high reliability and low latency.