OpenNet
OpenNet A/S operates a B2B wholesale IT platform that connects Danish fiber network owners with internet and TV service providers through standardized APIs and contracts. Its independent platform covers more than 1.1 million addresses and is now expanding into Germany.
- Company typePrivate
- Founded2018
- HeadquartersSilkeborg, Denmark
- Headcount11–50
- GTM typeB2B
- OfferingSoftware
What OpenNet does
OpenNet A/S is a Denmark-based, privately held wholesale IT platform that enables open access to fiber networks. Founded in 2017/2018 and headquartered in Silkeborg, the company operates a many-to-many B2B platform connecting fiber network owners (netejere)—primarily Danish energy companies and municipalities—with internet and TV service providers (tjenesteudbydere). Through standardized APIs, products, processes, and contracts, OpenNet allows a single integration by either side to reach the other's full counterparties, reducing the bilateral contract-and-integration burden that has historically characterized the market. Governance is structured for neutrality, with explicit 'watertight walls' between OpenNet and parent company Norlys (the energy and telecom conglomerate formed by the 2019 Eniig-SE merger), and external board representation.
The platform covers more than 1.1 million Danish addresses through network owners such as Nord Energi Fibernet, Thy-Mors Energi, RAH Fiberbredbånd, SEF Fiber, Verdo, MES, GlobalConnect/Onefiber, and Norlys Digital, and serves major service providers including Telenor, Nuuday (YouSee, TDC Erhverv, Hiper, Stofa, Boxer), Altibox, Fastspeed, Kviknet, and Bolig·Net. Revenue is generated through wholesale/platform fees tied to access to the standardized IT infrastructure and managed services; pricing is not publicly disclosed and is governed by individual B2B agreements.
Following a series of Danish network openings between 2018 and 2021, OpenNet began international expansion in 2024 by establishing OpenNet Germany (OpenNet GmbH), followed by a 2025 joint venture with a German consortium and the integration of Stadtwerke Flensburg. The company employs a small team (described as 'over 20' on its team page), led by CEO Henrik Møller Nielsen and CFO/Director IT & Finance Mikael Boye Enig, with functional leadership across solution architecture, international business, strategy/legal, and communications.
OpenNet firmographics
Firmographics- Name
- OpenNet
- Legal name
- OpenNet A/S
- Website
- https://opennet.nu
- Company type
- Private
- Founded year
- 2018
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- OpenNet A/S operates a B2B wholesale IT platform that connects Danish fiber network owners with internet and TV service providers through standardized APIs and contracts. Its independent platform covers more than 1.1 million addresses and is now expanding into Germany.
- Ownership category
- akta.pro rank
OpenNet industry classification
Industry- Product category
- Telecom Wholesale Platform
- NAICS
- Wired Telecommunications Carriers (517111)
- SIC
- Communications Services, Nec (4899)
- akta.pro primary industry
- Open-Access Fiber Network Operators (Wholesale-Only) (HDAIACAF)
- akta.pro secondary industries
- Neutral-Host Fiber & Shared Access Network Operators (HDAIACAJ), Wholesale ISPs & Bandwidth Resellers (Bulk Transit/Last-Mile) (HDAIADAC)
Keywords
Where OpenNet is headquartered
LocationHeadquarters
- HQ city
- Silkeborg
- HQ country
- Denmark
- HQ region
- Europe
Offices1 record
Markets served
OpenNet business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Operations, Infrastructure, Marketing or Sales
Revenue model
- Wholesale/Platform Fees: OpenNet operates as a wholesale platform facilitating connections between fiber network owners and service providers. The company earns revenue by providing the IT infrastructure, standardized agreements, and operational support that enables network access. As an independent platform, they charge for access to their system which allows multiple providers to access multiple networks through one integration.
Go-to-market motion1 record
Distribution channels1 record
Marketing channels3 records
OpenNet product offering
Product offeringCore offering
OpenNet operates a wholesale IT platform and collaboration model that enables the opening of fiber networks to multiple internet and TV service providers. Standardized APIs, products, processes and contracts allow network owners (typically energy companies and municipalities) to expose their fiber infrastructure to multiple ISPs, and allow ISPs to reach more end customers across many networks through a single integration. The platform covers over 1.1 million addresses in Denmark and is the neutral intermediary layer between network owners and service providers.
Product overview
OpenNet offers a single unified product: an IT platform and collaboration model for open access to fiber networks in Denmark. The platform connects network owners (netejere) with service providers (tjenesteudbydere), enabling them to collaborate through standardized APIs, products, processes, and contracts. The company covers 1.1 million addresses in Denmark and operates as an independent wholesale platform that reduces complexity in the telecom industry.
Differentiator
Problem solved
Functional benefit
Products and services
- OpenNet IT Platform for Open Access Fiber Networks A wholesale IT platform and collaboration model that opens fiber networks by enabling many-to-many relationships between fiber network owners (typically energy companies and municipalities) and internet/TV service providers, using standardized APIs, products, processes and contracts. Used by both sides to access 1.1 million addresses in Denmark through a single integration.
Quantifiable outcome
- Higher network utilization rates through connecting multiple service providers via one interface
- +1 more outcomes
Companies that use OpenNet
Customer profileNamed customers8 records
Segments2 records
Ideal customer profiles2 records
OpenNet technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
OpenNet partnerships and signals
Strategic signalPartnerships
15 partnerships are on record, tiered minor and core.
- MES (Midtjyllands Elektricitetsforsynings Selskab)minorMES opened their fiber network covering approximately 11,000 addresses in and around Brande and Give in Central Jutland via OpenNet.
- SEF FibercoreSEF Fiber opened their fiber network covering approximately 22,000 households in and around Svendborg via OpenNet. SEF Fiber is owned 75% by SEF A/S and 25% by Norlys Tele A/S.
- VerdocoreVerdo opened their fiber network covering approximately 25,000 addresses in Randers and Hobro via OpenNet. Verdo is a consumer-controlled energy conglomerate headquartered in Randers.
- GlobalConnect/OnefibercoreGlobalConnect opened their nationwide fiber network to private customers via OpenNet. Onefiber is GlobalConnect's consumer brand. The partnership enables internet providers to offer services on GlobalConnect's extensive fiber infrastructure.
- RAH FiberbredbåndcoreRAH Fiberbredbånd opened their fiber network covering 22,000 addresses in West Jutland via OpenNet. The network is a collaboration between RAH energy company, Thy-Mors Fibernet, and Norlys.
- Thy-Mors EnergicoreThy-Mors Energi opened their fiber network covering 44,000 shareholders in Thy and Mors via OpenNet. The partnership enables multiple content providers including Altibox, Telenor, and others to offer services on the network.
- Nature EnergyminorOle Hvelplund, CEO of Nature Energy, joined OpenNet's board as the first external board member. He brings extensive wholesale experience from his previous role as CEO of TDC Wholesale.
- Nord Energi FibernetcoreNord Energi opened their fiber network in North Jutland covering approximately 121,000 potential households via OpenNet. The partnership allows multiple service providers to access the network, giving consumers more content choices.
- NorlyscoreParent company and founding owner of OpenNet. Norlys is Denmark's largest energy and telecom conglomerate, formed from the merger of SE and Eniig in 2019. OpenNet was established by Norlys to create a common independent entry point for fiber networks. Despite ownership, OpenNet operates as an independent company with 'watertight walls' to ensure equal treatment of all partners.
- AltiboxcoreAltibox is Norway-owned (under Lyse Energi) and Scandinavia's largest fiber provider with over 500,000 customers. They deliver internet and TV via OpenNet's platform on multiple Danish fiber networks.
- TelenorcoreTelenor is Denmark's second-largest mobile and internet company, part of the Telenor Group. They offer MaxSpeed broadband (up to 1,000 Mbit/s) via OpenNet on multiple fiber networks, reaching over 1 million addresses.
- Nuuday (YouSee, TDC Erhverv, Hiper)coreNuuday is Denmark's largest provider of high-speed connections, owning brands including YouSee, TDC Erhverv, Hiper, Stofa, and Boxer. They access fiber networks via OpenNet to offer TV, internet, and business solutions.
- FastspeedcoreFastspeed is a rapidly growing Danish broadband company founded in 2018, focused on offering high-speed internet at competitive prices. They access fiber networks via OpenNet to expand their coverage.
- KviknetcoreKviknet is a nationwide broadband provider focused on price and technology. They access fiber networks via OpenNet and have grown significantly through partnerships on multiple networks.
- Bolig·NetminorBolig·Net specializes in broadband solutions for housing associations and private households. Founded in 2001, they access fiber networks via OpenNet to expand from primarily Sjælland into Jutland.
Scale indicators2 records
Recent moves8 records
Expansion highlights5 records
OpenNet competitors and assessment
Company assessmentDirect peers
- Deutsche Glasfaser: Germany's leading private fiber-to-the-home rollout with an open-access B2B wholesale proposition to multiple ISPs and TV providers. Direct overlap with OpenNet's first expansion geography and product positioning (fiber networks opened to multiple service providers).
- CityFibre: UK wholesale-only open-access fiber infrastructure provider selling capacity to multiple ISPs rather than competing at retail. Business model of standardizing many-to-many relationships between physical fiber and service providers closely tracks OpenNet's, just at a larger scale.
- Open Fiber: Italy's wholesale-only open-access fiber network operator, the most architecturally comparable model to OpenNet: it owns/leases fiber and sells wholesale capacity to multiple ISPs without competing at retail. Same buyer/seller logic (network owners ↔ service providers) and same focus on standardized APIs and contracts.
- Eurofiber: Netherlands/Belgium/DACH open-access wholesale fiber infrastructure operator that sells capacity on equal terms to multiple service providers. Architecturally comparable to OpenNet's network-agnostic, multi-ISP wholesale model.
Regional players
- NetCologne: Regional open-access fiber operator in the Cologne/Rhineland area providing wholesale Layer-2/3 access to multiple ISPs. Comparable open-access wholesale architecture targeting the same multi-ISP retail relationship that OpenNet standardizes.
- M-net: Regional open-access fiber operator in Bavaria/Germany offering wholesale access to multiple ISPs. Comparable regional open-access model and a likely competitor/substitute in the German geography OpenNet is entering.
Broad incumbents
- GlobalConnect: Large Nordic/DACH wholesale fiber and data-center operator that opens its Onefiber consumer brand network via OpenNet while also competing as a wholesale carrier to ISPs. Comparable infrastructure scale and shared customer base in Denmark and Germany.
- TDC NET (Nuuday): Denmark's incumbent fiber/access network owner (part of Nuuday/YouSee), which both operates fiber and uses OpenNet as a service provider on competing networks. Adjacent incumbent with overlapping nationwide address reach and similar ISP-serving role.
- Telia Carrier (Arelion): One of Europe's largest wholesale telecom carriers providing fiber, IP transit, and capacity to other operators. Compares to OpenNet as a wholesale infrastructure intermediary, though operating a far larger and broader telecom stack.
- Altibox (Lyse): Norway's largest open-access fiber operator (500k+ customers under Lyse Energi) — operates fiber with open wholesale while also being an anchor service provider on OpenNet in Denmark. Overlapping philosophy (open access, multi-ISP) but it is also a customer rather than a competing neutral intermediary.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat5 records
Key risks5 records
Key highlights6 records
Customer concentration
OpenNet social profiles
Digital presenceOpenNet financial estimates
Financial estimateRevenue estimate
Valuation estimate
OpenNet leadership team
Management profileNumber of profiles
Profiles10 records
OpenNet subsidiaries and ownership
Company hierarchySubsidiaries1 record
OpenNet funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
OpenNet M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about OpenNet
What does OpenNet do?
OpenNet operates a wholesale IT platform and collaboration model that enables the opening of fiber networks to multiple internet and TV service providers. Standardized APIs, products, processes and contracts allow network owners (typically energy companies and municipalities) to expose their fiber infrastructure to multiple ISPs, and allow ISPs to reach more end customers across many networks through a single integration. The platform covers over 1.1 million addresses in Denmark and is the neutral intermediary layer between network owners and service providers.
Is OpenNet a public or private company?
OpenNet is a private company. It is classified as corporate owned and is currently operating.
When was OpenNet founded?
OpenNet was founded in 2018. It employs 11 to 50 people.
Where is OpenNet based?
OpenNet is headquartered in Silkeborg, Denmark, in the Europe region.
How does OpenNet make money?
One revenue line is on record: wholesale/Platform Fees.
Who are OpenNet's main competitors?
Direct peers on record are Deutsche Glasfaser, CityFibre, Open Fiber and Eurofiber. Regional players are NetCologne and M-net. Broad incumbents are GlobalConnect, TDC NET (Nuuday), Telia Carrier (Arelion) and Altibox (Lyse).
Does OpenNet have an API?
No public API is recorded for OpenNet.
What industry is OpenNet in?
OpenNet's product category is Telecom Wholesale Platform. Its primary akta.pro industry code is HDAIACAF, Open-Access Fiber Network Operators (Wholesale-Only), with a secondary code of HDAIACAJ, Neutral-Host Fiber & Shared Access Network Operators. Its NAICS code is 517111 and its SIC code is 4899.