What GasLINE does

GasLINE is a German fiber-optic infrastructure provider founded in 1996, headquartered in Straelen, Germany, and owned by a consortium of German gas utilities including avacon, bayerngas, eins, enveco, ewe, gas union, hansewerk, OGE (Open Grid Europe), VNG, and WestEnergie. The company operates a 65,000+ km dark fiber network — with an additional 5,000 km under construction through 2029 — installed predominantly within the rights-of-way of high-pressure gas pipelines, providing physical protection from external hazards. Its infrastructure reaches 350+ data centers and serves 225+ national and international telecommunications companies, ISPs, media and content providers, municipalities, and enterprises.

The company's product portfolio centers on dark fiber and wholesale connectivity services, supplemented by broadband access solutions and a One-Stop-Shop for international connectivity coordination. Anchor customer relationships include Telefónica Deutschland (high-speed connections for 1,500+ mobile sites), 1&1 Versatel (long-term dark fiber cooperation), M-net (passive infrastructure for a quantum network ring), 450connect (critical infrastructure backbone), and Relined Fiber Network (joint marketing). The company is ISO 9001 and ISO 27001 certified and maintains a registered interface specification per §74 TKG (Telekommunikationsgesetz).

GasLINE operates a wholesale B2B revenue model based on recurring dark fiber contracts with carriers, ISPs, and enterprises, with quote-based pricing that is not publicly disclosed. GTM is primarily direct enterprise field sales targeting KRITIS operators and carriers needing high-capacity, secure, dedicated fiber. Leadership transitioned in March 2025 to Managing Directors Wolfram Rinner and Michael Schaff, replacing Andreas Arnold who served from July 2015.

Name

GasLINE

Legal name

Telekommunikationsnetzgesellschaft deutscher Gasversorgungsunternehmen mbH & Co. KG

Website

https://gasline.de

Company type

Private

Founded year

1996

Operating status

Operating

Headcount range

51–100 employees

Short description

GasLINE is a German wholesale dark fiber infrastructure provider, operating 65,000+ km of fiber routes installed along gas pipeline rights-of-way to serve 225+ telecom carriers, ISPs, municipalities, and enterprises nationwide.

Ownership category

akta.pro rank

Headquarters

HQ city

Straelen

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Dark Fiber Wholesale: Provides dark fiber infrastructure to carriers, ISPs, and enterprises on a wholesale basis. Customers gain dedicated fiber connections with maximum security, speed, and availability for their networks.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

GasLINE operates a wholesale fiber-optic infrastructure business providing Dark Fibre connections, Wholesale Connectivity capacity services, and Breitbandanbindung broadband access over its LWL-Backbone network of more than 65,000 km of fiber routes installed primarily within high-pressure gas pipeline rights-of-way. It serves carriers, ISPs, media/content providers, municipalities (Stadtwerke/Kommunen), and enterprises with a One-Stop-Shop model for international connectivity.

Product overview

GasLINE operates as a fiber-optic infrastructure provider offering dark fiber and wholesale connectivity services through a unified network platform. The core offering consists of the LWL-Backbone (65,000+ km fiber network) which serves as the foundational infrastructure, complemented by Dark Fibre (direct dedicated connections), Wholesale Connectivity (capacity services for carriers), and Breitbandanbindung (broadband access). Additional services include Netzausbau und Mitverlegung (network expansion and co-laying) for infrastructure build-out, and One-Stop-Shop for international connectivity coordination. The network infrastructure is predominantly installed within the rights-of-way of high-pressure gas pipelines, providing physical protection and resilience.

Differentiator

Problem solved

Functional benefit

Products and services

• Dark Fibre Direct fiber-optic connections providing exclusive, dedicated bandwidth for enterprise customers, carriers, and service providers requiring maximum security and performance.
• Wholesale Connectivity Wholesale fiber-optic infrastructure services for telecommunications companies, ISPs, and network operators seeking capacity or network expansion.
• Breitbandanbindung (Broadband Access) Broadband connectivity solutions enabling high-speed internet access for businesses, municipalities, and local utilities.
• LWL-Backbone Long-distance fiber-optic backbone network spanning over 65,000 km of fiber routes across Germany, providing the core infrastructure for all connectivity services.

Named customers5 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature1 record

Partnerships

Five partnerships are on record, tiered core and notable.

• Relined Fiber NetworkcoreGTM or Marketing Partner · 21 September 2022Cooperation for marketing fiber infrastructure networks. Jointly promoting dark fiber services to expand reach and market presence across Germany.
• 1&1 VersatelcoreStrategic or Co-development Partner · 18 May 2022Extended long-term cooperation for dark fiber connectivity services. 1&1 Versatel leverages GasLINE infrastructure for network expansion.
• 450connectcoreStrategic or Co-development Partner · 1 May 2022Partnership for nationwide backbone infrastructure. 450connect utilizes GasLINE's passive fiber infrastructure for critical communications networks.
• M-netnotableStrategic or Co-development PartnerGasLINE delivered the majority of passive infrastructure for M-net's new quantum network ring, demonstrating technical capability for advanced fiber deployments.
• Telefónica DeutschlandcoreStrategic or Co-development PartnerProvided high-speed fiber connections for more than 1,500 mobile sites, supporting 4G/5G backhaul infrastructure requirements.

Scale indicators5 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• Colt Technology Services: Global B2B connectivity provider with extensive European owned fiber infrastructure serving enterprises, carriers, and data centers. Comparable to GasLINE as a wholesale fiber provider targeting enterprises and carriers in Germany and across Europe.
• Deutsche Glasfaser: One of Germany's largest FTTH wholesale and retail fiber operators, backed by KKR. Direct competitor in the German wholesale fiber market, building out parallel last-mile and backhaul routes that overlap with GasLINE's customer base.
• Relined Fiber Network: Dutch-headquartered dark fiber operator with cross-border German routes, focused on wholesale fiber along infrastructure corridors. GasLINE has an active mutual GTM/marketing partnership with Relined, indicating direct overlap in dark fiber wholesale across Germany.
• 1&1 Versatel: German B2B fiber and wholesale telecom operator serving enterprise and carrier customers. Both a GasLINE customer (long-term dark fiber cooperation) and a competing wholesale fiber provider, making it the closest hybrid customer-competitor in the German market.
• euNetworks: European wholesale fiber operator owning and operating city-to-city fiber networks and connecting 300+ data centers. Closely comparable to GasLINE in business model (wholesale dark fiber, data center focus, European footprint) though larger and geographically broader.

Broad incumbents

• Deutsche Telekom: Germany's dominant telecom incumbent with the country's largest fiber and copper network. Overlaps with GasLINE as a wholesale fiber provider at far larger scale and broader portfolio, but offers dark fiber as one capability among many retail, mobile, and IT services.
• Telefónica Deutschland (O2): One of GasLINE's largest customers (1,500+ mobile sites on dark fiber) and a major German mobile/fixed-line operator. Overlaps with GasLINE in dark fiber procurement and would be a vertical-integration comparable at the access layer.
• Vodafone Germany: Major German fixed and mobile operator with a national fiber footprint including the Unitymedia cable network. Competes with GasLINE in carrier and enterprise connectivity at much larger scale and as part of a broader consumer-facing portfolio.

Others

• Open Grid Europe (OGE): One of Germany's largest gas transmission system operators and a GasLINE shareholder. While not a fiber peer, OGE is the archetype of the gas pipeline infrastructure owner whose rights-of-way enable GasLINE's network, making it the most thematically connected ecosystem participant.

Regional players

• M-net: Regional fiber and telecom operator focused on Bavaria, with whom GasLINE collaborated on a quantum network ring. Comparable as a fiber-based carrier customer but geographically constrained to southern Germany.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries2 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 GasLINE