Eurofiber Netz

What Eurofiber Netz does

Eurofiber Netz GmbH (now operating as mih NET Berlin GmbH following MIH Management AG's June 2026 acquisition) is a Berlin-based, wholesale-only fiber optic infrastructure operator that builds and operates FTTB and FTTH networks on an Open Access model. The company was founded in 2021 as a 50/50 joint venture between Vattenfall Wärme Berlin AG and Eurofiber Group (Netherlands), became a wholly-owned Eurofiber subsidiary in November 2023, and was acquired by MIH Management AG in June 2026.

The network is deployed using Vattenfall's existing 700+ km of district heating tunnels for fiber cable routing, materially reducing civil engineering cost and disruption relative to open-trench alternatives. Active equipment is based on XGS-PON technology supplied by ANEDiS powered by Netceed (Calix OLT/ONT, Casa Systems G.fast DPUs), supporting symmetric 10 Gbps services and Layer-2 Bitstream Access (L2BSA) wholesale products. By June 2026, the network reached 150,000+ homes passed with 200+ km of fiber route and 120,000+ connections, secured through approximately 380 building access agreements (Gestattungen) with Berlin housing actors including berlinovo, WGLi (~10,000 units), Postheimstätte eG, and KAURI CAB. A stated target is to reach 500,000 households and businesses, aligned with Berlin's Gigabit Strategy partnership with the Land Berlin.

The business model is recurring wholesale access fees charged to 10+ ISP channel partners (1&1 Versatel, Bahnhof, Amiva, PŸUR, rrbone, AGILISCOM, Campus Networks & Events, Plusnet, DNS:NET, o2 Telefónica) plus vitroconnect's 100+ reseller aggregator. End consumers are not direct customers — they select among ISP partners listed on the Eurofiber network via portals such as berlin.mitjederfaser.de. Customers are segmented into residential households, housing industry/property management (the contracting side for Gestattungen), enterprise/business customers reached through B2B ISP partners, and the Berlin public sector via the Gigabit Strategy. The company has co-founded the Open Access Allianz with Deutsche GigaNetz, DNS:NET, and Infrafibre Germany, and holds ISO 27001 certification (January 2024).

Name

Eurofiber Netz

Legal name

mih NET Berlin GmbH

Website

https://eurofiber.de

Company type

Private

Founded year

2021

Operating status

Acquired

Headcount range

101–250 employees

Short description

Eurofiber Netz GmbH (now mih NET Berlin GmbH) is a Berlin-based wholesale-only fiber infrastructure operator building FTTB/FTTH networks via Vattenfall's district heating tunnels under an Open Access model, serving ISPs, housing providers, enterprise partners, and the Berlin state government.

Ownership category

akta.pro rank

Product category

Fiber Optic Telecommunications Infrastructure

NAICS

Wired Telecommunications Carriers (517111)

akta.pro primary industry

Fiber-to-the-Home (FTTH) Operators (HDAIACAB)

akta.pro secondary industries

Fiber-to-the-Premises/Building (FTTP/FTTB) Operators (HDAIACAC), Wholesale Fixed Access & Bitstream Providers (HDAIABAF)

Keywords

• Wholesale fiber infrastructure
• FTTB FTTH networks
• Open access broadband
• Layer 2 bitstream access
• Fiber optic deployment

Headquarters

HQ city

Berlin

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Wholesale Network Access Fees: Eurofiber Netz generates revenue by charging telecommunications ISPs and service providers (e.g., 1&1, Bahnhof, Amiva, PŸUR, o2 Telefónica) a wholesale fee for access to its fiber optic network infrastructure. As a pure infrastructure provider (no end-customer products), revenue is derived from capacity/bandwidth sales to multiple competing ISPs who resell retail internet, TV, and phone services to end consumers. This is a recurring wholesale access fee model, with revenue tied to the number of ISPs using the network and the volume of connections (homes passed).

Go-to-market motion3 records

Distribution channels5 records

Marketing channels7 records

Core offering

Eurofiber Netz builds and operates a wholesale-only FTTB/FTTH fiber optic network in Berlin using XGS-PON technology (10 Gbps symmetric). The company sells Layer 2 Bitstream Access (L2BSA) wholesale products to multiple internet service providers (ISPs) under an Open Access model, enabling end consumers to choose from competing ISPs on the same physical fiber infrastructure. Direct sales target property owners, housing cooperatives, and real estate developers for building access agreements.

Product overview

Eurofiber Netz is a wholesale-only fiber optic infrastructure provider operating an Open Access network in Berlin. The company builds and operates FTTB/FTTH (Fiber-to-the-Building/Fiber-to-the-Home) networks using XGS-PON technology, offering Layer 2 Bitstream Access products to third-party internet service providers. Rather than selling directly to end consumers, Eurofiber Netz functions as infrastructure enabling ISPs to serve residential and business customers. The product portfolio centers on physical fiber network infrastructure with multiple technology variants (FTTB, FTTH, XGS-PON) and the L2BSA wholesale access layer, all delivered under an Open Access model that ensures provider choice for end customers.

Differentiator

Problem solved

Functional benefit

Products and services

• Open Access Fiber Network (Wholesale Infrastructure) Wholesale-only, carrier-neutral FTTB/FTTH fiber optic network in Berlin providing non-discriminatory access to all internet service providers under an Open Access model, enabling end consumers to choose their ISP. Targets ISPs, housing industry, and Berlin public sector.
• Layer 2 Bitstream Access (L2BSA) Technical wholesale product using Layer 2 Bitstream Access architecture for Open Access service provisioning, enabling ISPs to deliver retail internet, telephony, and TV services over Eurofiber's fiber infrastructure with S/PRI-based standardized interconnection.
• XGS-PON Network Infrastructure (10 Gbps symmetric) Next-generation passive optical network technology supporting 10 Gbps symmetric bandwidth (upstream and downstream) using Calix OLT/ONT and Casa Systems G.fast DPUs with XGS-PON uplink for ultra-high-speed residential and business broadband.
• Glasfaseranschluss (Fiber Connection Service) Free fiber optic connection service for households and businesses in Berlin, enabling high-speed internet access through a provider of choice. Connection cost is borne by the infrastructure provider (Eurofiber), not by property owners or residents.

Quantifiable outcome

• Fiber optic data transfer consumes up to 17x less electricity compared to copper-based data transfer technologies
• +3 more outcomes

Named customers5 records

Segments5 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

16 partnerships are on record, tiered core and minor.

• Amiva (STROTH Telecom GmbH)coreChannel Partner/ Reseller/ Distributor · 21 January 2026Amiva, a German telecom provider headquartered in Düsseldorf and B Corp certified, launched fiber internet services on the Eurofiber Netz in January 2026. Amiva focuses on sustainable, fair, and transparent broadband offerings for residential customers in Berlin. The partnership was implemented via vitroconnect's Bitstrom trading model. Amiva complements Eurofiber's ISP portfolio with a sustainability-focused retail offering, expanding consumer choice on the Open Access network.
• Bahnhof Nätverk GmbH (Bahnhof AB)coreChannel Partner/ Reseller/ Distributor · 15 September 2025Swedish telecom provider Bahnhof (with its German subsidiary Bahnhof Nätverk GmbH) began offering fiber internet services on the Eurofiber Netz in Berlin in September 2025. Bahnhof, Sweden's leading ISP with 500,000 customers and six consecutive years as Sweden's best broadband provider, brings its distinctive 'pure internet' model (no bundled phone service, straightforward pricing, and long-term customer discounts) to the German market. Speeds up to 1,000 Mbit/s are available with symmetrical bandwidth options. This was Eurofiber's first international Open Access partnership.
• o2 TelefónicacoreChannel Partner/ Reseller/ Distributor · 11 September 2025o2 Telefónica signed a cooperation agreement with Eurofiber Netz in September 2025 to provide fiber broadband connections for Berlin customers over the Eurofiber network. o2 Telefónica leverages its position as one of Germany's largest mobile and fixed-line operators to bring consumer and business fiber offerings to Berlin via the Eurofiber Open Access infrastructure.
• DNS:NET (DNS:NET Internet Service GmbH)coreChannel Partner/ Reseller/ Distributor · 1 July 2025DNS:NET, a Berlin/Brandenburg full-service telecom operator and Germany's leading alternative fiber provider in Brandenburg, entered a cooperation with Eurofiber in July 2025 as part of the Open Access Allianz framework. DNS:NET offers broadband internet, TV, and phone services for residential and business customers, leveraging Eurofiber's Berlin fiber infrastructure to expand its service footprint.
• PŸUR (Tele Columbus AG)coreChannel Partner/ Reseller/ Distributor · 19 May 2025PŸUR, the consumer cable and fiber brand of Tele Columbus AG, agreed a fiber cooperation with Eurofiber in May 2025 to offer high-speed fiber tariffs to Berlin customers over the Eurofiber network. PŸUR brings its established consumer brand and mass-market distribution to the Eurofiber Open Access ecosystem.
• Open Access Allianz (Deutsche GigaNetz, DNS:NET, Infrafibre Germany)coreStrategic or Co-development Partner · 5 November 2024Eurofiber Netz co-founded the Open Access Allianz together with Deutsche GigaNetz, DNS:NET, and Infrafibre Germany (with subsidiaries LEONET and BBV Deutschland) in May 2024. The alliance aims to establish uniform standards for Open Access in Germany's fiber market, including standardized Layer-2 Bitstream Access contracts, uniform product descriptions, minimum service level standards, and S/PRI-based interconnection interfaces. The alliance facilitates mutual use of each member's fiber infrastructure for cross-network ISP services, reduces redundant infrastructure investment, and accelerates gigabit coverage across Germany.
• rrbonecoreChannel Partner/ Reseller/ Distributor · 25 July 2024rrbone became a partner on the Eurofiber Netz in July 2024, making the high-performance fiber network accessible to more end consumers in Berlin. rrbone offers residential and business fiber broadband services on the Open Access network.
• Land Berlin (Senate of Berlin)coreStrategic or Co-development Partner · 13 May 2024Eurofiber is an active partner in Berlin's Gigabit Strategy, a government initiative co-led by Senator Franziska Giffey to achieve gigabit fiber coverage across all Berlin households and businesses by 2028. Eurofiber participates in the strategy's steering committee (Lenkungskreis), contributes to regulatory streamlining initiatives, and benefits from administrative support and facilitated permitting processes. The partnership provides Eurofiber with political backing and regulatory cooperation essential for rapid network expansion.
• ANEDiS powered by NetceedcoreImplementation/ SI/ Consulting Partner · 18 January 2024ANEDiS, part of the Netceed Group and based in Berlin, was selected as system integrator and support partner for Eurofiber's XGS-PON fiber network deployment covering 500,000 households and businesses in Berlin. ANEDiS provides Calix active OLT and ONT equipment and Casa Systems G.fast DPUs with XGS-PON uplink. A proof-of-concept pilot was completed in 2022 at ANEDiS's Berlin training center before the framework agreement was formalized in February 2024. ANEDiS serves as the critical local technical integration partner for the large-scale rollout.
• AGILISCOM AGcoreChannel Partner/ Reseller/ Distributor · 11 January 2024AGILISCOM, a regional network provider from Brandenburg an der Havel, began offering fiber products on the Eurofiber Netz in January 2024. AGILISCOM provides speeds of 50 to 1,000 Mbit/s for residential customers and symmetrical 300+ Mbit/s connections for business customers.
• Campus Networks & Events GmbH (K-TEL Gruppe)coreChannel Partner/ Reseller/ Distributor · 21 November 2023Campus Networks & Events, a Berlin-based network service provider specializing in business and events connectivity, partnered with Eurofiber in November 2023 to serve enterprise customers in Berlin with high-performance B2B fiber services. As part of the K-TEL Group, Campus Networks offers tailored network solutions for businesses and events using Eurofiber's fiber infrastructure.
• Vattenfall Wärme Berlin AG (Post-acquisition relationship)coreStrategic or Co-development Partner · 10 November 2023Following Eurofiber's full acquisition of Eurofiber Netz GmbH in November 2023 (previously a 50/50 joint venture with Vattenfall), the operational relationship evolved: Vattenfall Wärme Berlin retains ownership of the district heating tunnel infrastructure (~700 km) that Eurofiber continues to use for fiber cable installation under continued commercial agreements. This tunnel access is a critical enabler of Eurofiber's low-disruption fiber deployment strategy in Berlin.
• vitroconnect GmbHcoreTechnology or Integration · 10 March 2023vitroconnect serves as Eurofiber's primary technical aggregator and brokerage platform partner, managing ISP reseller onboarding and the Bitstrom (Layer-2 wholesale) trading model. With over 100 resellers and access to 80+ supplier products, vitroconnect is Germany's largest network-independent brokerage platform for telecom broadband connections. The partnership enables Eurofiber to efficiently onboard and manage a large ecosystem of ISP resellers on its network.
• 1&1 VersatelcoreChannel Partner/ Reseller/ Distributor · 26 January 20231&1 Versatel, a B2B-focused telecom provider and subsidiary of United Internet AG, became Eurofiber's first business customer ISP partner in January 2023. 1&1 Versatel uses the Eurofiber network to serve enterprise customers in Berlin with symmetric high-capacity internet, site connectivity, WAN/LAN solutions, and hosted services. The partnership was designed to serve the commercial property market where Eurofiber-fibred buildings need dedicated business ISP options.
• Plusnet GmbH (EnBW)coreChannel Partner/ Reseller/ Distributor · 15 December 2022Plusnet, a telecom provider owned by EnBW with nationwide fiber infrastructure and over 400 employees, signed a cooperation agreement with Eurofiber in December 2022. Through the partnership, Plusnet gains access to over 500,000 fiber connections in Berlin via Open Access, extending its national service portfolio. Plusnet targets both business and residential customers through its Netbridge platform which aggregates multiple fiber networks.
• KAURI CABminorChannel Partner/ Reseller/ Distributor · 1 January 2022KAURI CAB, a Berlin-based real estate developer, contracted Eurofiber for exclusive FTTH campus network development and operation at the Havelufer Quartier in Spandau (approximately 1,800 apartments across 130,000 sqm). Eurofiber provides the fiber infrastructure while KAURI CAB incorporates the connectivity into its premium residential development offering. The partnership was brokered with support from Drees & Sommer for additional IoT services planning.

Scale indicators8 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• DNS:NET Internet Service GmbH: Berlin/Brandenburg-focused full-service telecom and Germany's leading alternative fiber provider in Brandenburg. Open Access Allianz member and ISP partner on Eurofiber — a directly comparable fiber operator overlapping the same Berlin/Brandenburg geography.
• Deutsche GigaNetz: German wholesale fiber infrastructure operator building FTTH networks across Germany under an Open Access model. Co-founder of the Open Access Allianz with Eurofiber, making it the closest direct comparable in business model, target customer base, and Open Access go-to-market.
• Deutsche Glasfaser: One of Germany's largest pure-play wholesale FTTH operators, deploying fiber in rural and suburban regions under a comparable Open Access model. Closely aligned with Eurofiber in infrastructure-only positioning and ISP-channel distribution strategy.
• Glasfaser NordWest: Joint-venture FTTH operator between EWE TEL and Deutsche Telekom building fiber in northwest Germany. Comparable as a German fiber infrastructure builder focused on regional rollout under multi-utility / telecom JV structures.
• Infrafibre Germany: German FTTH infrastructure operator with subsidiaries LEONET and BBV Deutschland, and an Open Access Allianz co-founder. Operates under a similar wholesale fiber business model with comparable ISP-channel distribution.

Broad incumbents

• Telefónica Germany (o2): One of Germany's largest mobile and fixed-line operators with growing fiber offerings and a recent cooperation agreement with Eurofiber as an ISP partner. Simultaneously operates own fiber expansion in selected regions, making it both a customer and adjacent competitor.
• Vodafone Germany: Major German cable + fiber operator with nationwide gigabit-capable HFC and growing FTTH footprint, including Berlin. Competes for the same end customers and wholesale contracts with broader portfolio capabilities.
• Tele Columbus AG (PŸUR): German cable and fiber operator with the PŸUR consumer brand; recently partnered with Eurofiber as an ISP. Operates own HFC/fiber in parts of Berlin, overlapping the same addressable market as Eurofiber.
• Deutsche Telekom: Germany's largest telecom incumbent with the country's largest FTTH/HFC footprint and bundled mobile offerings. Competes with Eurofiber for end customers in Berlin via retail ISP offerings while operating overlapping wholesale/metro fiber infrastructure.

Others

• vitroconnect GmbH: Germany's largest network-independent brokerage platform for telecom broadband connections, with 100+ resellers and 80+ supplier products. Eurofiber's technical aggregator and Bitstrom broker, comparable as an enabler of the wholesale Open Access ecosystem.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/eurofiber-netz

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

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 Eurofiber Netz