What Stokab does

Stokab (legal name AB Stokab, organisation number 556475-6467) is a Swedish municipally-owned fiber-infrastructure operator founded in 1994 and wholly owned by the City of Stockholm (Stockholms stad). It operates what it describes as the world's largest open urban fiber network, comprising 2.03 million fiber-kilometers, approximately 24,011 connection points, 400+ node spaces, and 23,000+ cross-connect nodes concentrated in Stockholm and extended into the Mälardalen region and the Stockholm archipelago via submarine cable. The network is purpose-built for wholesale, competition-neutral dark-fiber leasing to telecom operators, data centers, enterprises, property owners, healthcare providers, and public-sector entities, served through direct account managers, a BankID-authenticated customer portal, and the Stokab System Direkt API.

The product portfolio is organized into Singelfiber products (Singelfiber Lägenhet for apartments, Singelfiber Företag for commercial premises, Singelfiber Gaturum for street-side/IoT use) and Fiberparsprodukter (Punkt till Punkt point-to-point, Stjärna for in-area deployments, Fiberpar Fastighet for buildings, Eventfiber for ~30 short-term venues). Underlying technology uses point-to-point architecture on underground ducts with dedicated fiber pairs to each address, so customers provision their own active equipment and pricing is invariant to bandwidth. Revenue is generated from recurring monthly dark-fiber rental fees (priced by contract length and linear distance for OnNet sites), one-time connection fees (calculated on construction scope for OffNet sites), and node-space rental for customer equipment; >90% of Stockholm multi-family households and ~1,000+ commercial properties have fiber access, with ~900 corporate customers and 100+ active operators on the network.

Stokab is structurally a municipal utility: profits are retained for network reinvestment (170 million SEK invested in 2024 alone), the company's acquisition of Utfors's Mälardalen duct infrastructure (completed 2005) and ownership of Stockholm archipelago submarine cables are treated as civic expansion rather than commercial transactions, and its wholly-owned subsidiary S:t Erik Kommunikation AB administers the City of Stockholm's data communications network serving 40,000 city employees and 100,000 students. FY2024 group revenue was 844 million SEK with 246 million SEK pre-tax profit; headcount is approximately 110 across the Stokab group. The company has EU-level recognition as a model for neutral city-network broadband investment.

Name

Stokab

Legal name

AB Stokab

Website

https://stokab.se

Company type

Private

Founded year

1994

Operating status

Operating

Headcount range

51–100 employees

Short description

Stokab is a municipally-owned Swedish operator of the world's largest open urban dark-fiber network (2.03 million fiber-kilometers, ~24,000 connection points), wholesale-leasing point-to-point fiber to telecom operators, enterprises, data centers, property owners, and public-sector customers in Stockholm and the Mälardalen region.

Ownership category

akta.pro rank

Product category

Wholesale Dark Fiber Infrastructure

akta.pro primary industry

Open-Access Fiber Network Operators (Wholesale-Only) (HDAIACAF)

akta.pro secondary industries

Multi-Dwelling Unit (MDU) / In-Building Fiber Operators (HDAIACAH), Fiber-to-the-Premises/Building (FTTP/FTTB) Operators (HDAIACAC)

Keywords

• Dark fiber leasing
• Fiber network infrastructure
• Wholesale telecom infrastructure
• Open access network
• Fiber infrastructure services

Headquarters

HQ city

Stockholm

HQ country

Sweden

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Infrastructure, Personnel, Operations, Technology or R&D, Marketing or Sales

Revenue model

1. Dark Fiber Rental (Svartfiber): Recurring monthly rental fees for dark fiber connections. Pricing is based on contract duration and distance. Customers receive dedicated fiber pairs or single fibers between requested points. The rental fee remains constant regardless of capacity set in customer equipment.
2. Connection Fees: One-time non-recurring fees for fiber connection installations. For OnNet properties (already connected to network), standard delivery is 10-20 working days. For OffNet properties requiring new construction, fees are calculated based on project scope including planning, excavation, and installation work.
3. Node Space Rental: Customers can install communication equipment in Stokab's nodes and hubs to connect their own networks. Space in approximately 400 node facilities is available for customer equipment placement.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

Stokab owns and operates the world's largest open urban fiber optic network in Stockholm (2.03 million fiber-kilometers, 24,011 connection points, 400+ nodes) and rents dedicated dark fiber (svartfiber) connections on a wholesale, competition-neutral basis. Its portfolio includes single-fiber products for apartments, businesses, and street environments, and fiber-pair products for point-to-point, star, property, and event connectivity, sold exclusively to operators, data centers, enterprises, property owners, and public sector entities.

Product overview

Stokab operates the world's largest open urban fiber network, with approximately 2.03 million fiber kilometers in Stockholm. The company offers a portfolio of dark fiber products under a 'Fibre as a Service' model, including Singelfiber products (Singelfiber Lägenhet, Singelfiber Företag, Singelfiber Gaturum) for single fiber connections to apartments, businesses, and street infrastructure, and Fiberparsprodukter (Punkt till Punkt, Stjärna, Fiberpar Fastighet, Eventfiber) for fiber pair connections between properties, point-to-point links, star topology, and temporary event connectivity. The network comprises approximately 24,011 connection points and 400 node spaces, with digital services managed through Stokab's customer portal (Kundportalen) and API (Stokabs API). The subsidiary S:t Erik Kommunikation handles the City of Stockholm's data communication network.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• Over 90% of Stockholm households in multi-family properties have fiber access
• +4 more outcomes

Named customers9 records

Segments6 records

Ideal customer profiles5 records

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Six partnerships are on record, tiered core and minor.

• Trafikkontoret (Traffic Authority)coreStrategic or Co-development Partner · 1 January 2026Collaboration on smart city infrastructure including fiber connection of traffic signal cabinets along Sveavägen for modern traffic management, real-time monitoring, and intelligent traffic systems.
• WIK-ConsultminorOthers · 1 January 2023Commissioned studies on neutral fiber infrastructure including 'Neutral fibre as a platform for innovation' (2023/2024) and 'Neutral fibre and the European Green Deal' (2021).
• Stockholm Resilience CenterminorStrategic or Co-development Partner · 1 January 2020Collaboration partner in SMARTer Greener Cities Nordic research project studying environmental conditions in Norra Djurgårdsstaden with weather stations measuring sol radiation, temperature, humidity, rain, and wind.
• Stockholms läns landsting (Stockholm Region)coreStrategic or Co-development Partner · 1 January 1994Stockholm Region was a co-founder and initial partial owner of Stokab, providing the initial mandate to connect healthcare facilities across the region. 35 sites including hospitals and major healthcare units were connected to the regional fiber network. Region transferred ownership to Stockholm City after project completion.
• S:t Erik KommunikationcoreStrategic or Co-development PartnerSubsidiary company responsible for procuring and administering Stockholm City's consolidated data communications network. Provides services to 40,000 municipal employees and 100,000 students. Active partner in smart city projects including Connected SRS for IoT data collection.
• Stockholm LiveminorStrategic or Co-development PartnerOperator of Avicii Arena and Globen area, collaborating with Stokab on event fiber solutions for major venue connectivity during events like IIHF World Championship and Melodifestivalen.

Scale indicators14 records

Recent moves10 records

Expansion highlights5 records

Direct peers

• Open Dutch Fiber: Dutch open-access fiber operator building FTTH networks on a wholesale-only basis. Operates the same neutral-host model as Stokab, serving ISPs and service providers rather than end users, making it a strong functional peer.
• GlobalConnect: Nordic and Northern European fiber and data center operator providing wholesale and enterprise connectivity. Direct geographic peer active in the same Nordic region with overlapping operator and enterprise customer base.
• euNetworks: European wholesale bandwidth infrastructure operator owning and operating fiber networks across Western Europe. Closely comparable in business model — owns fiber, leases dark fiber and wavelength services to operators and enterprises without competing at the active services layer.
• Deutsche Glasfaser: German fiber-to-the-home wholesale and infrastructure operator active primarily in rural and underserved areas. Comparable open-access, wholesale-driven model with similar operator-customer dynamics, though in a different country.
• CityFibre: UK-based wholesale open-access fiber network operator with a similar neutral-host model serving ISPs, mobile operators, and enterprises. CityFibre is the most direct functional peer to Stokab's open-access wholesale-only model, scaled to UK cities rather than Stockholm.

Broad incumbents

• Zayo Group: Large US-based fiber infrastructure operator providing dark fiber, wavelengths, and managed services to operators and enterprises. Comparable in offering dark fiber at scale, though with a much broader geographic footprint and additional active services.
• Telia Company: Swedish incumbent telecom and largest carrier customer in Stokab's network. Overlaps as both a customer of Stokab's dark fiber and a competing infrastructure owner in its own right — relevant peer given the interdependency.
• Colt Technology Services: European business-focused fiber and data services provider offering dark fiber, wavelengths, and managed network services to enterprise and wholesale customers. Operates in adjacent infrastructure layers serving similar enterprise customer needs.
• Lumen Technologies: Major US telecom and fiber infrastructure provider with extensive long-haul and metro dark fiber assets. A broad incumbent that competes in the same wholesale fiber space but with a much wider portfolio of managed services.

Others

• Tele2: Swedish and Baltic telecom operator that is a major lessee on Stokab's network while also operating its own fiber. A direct customer of Stokab and a partial competitor in enterprise connectivity, making it a strategically relevant peer.

Market position

Strengths5 records

Weaknesses1 record

Competitive moat5 records

Key risks1 record

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCOM_au9bBv2xc-C2UtYufeg
• LinkedInlinkedin.com/company/stokab
• Xx.com/stokab94

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Stokab