What NDIX does

NDIX (legal name Nederlands-Duitse Internet Exchange B.V.) is a Dutch-headquartered, open and independent broadband platform that delivers high-capacity, dedicated fiber optic connectivity to enterprises, data centers, hyperscalers, telecom operators, and public sector organizations across North-West Europe. Founded in 2001 in Enschede as a Dutch-German Internet Exchange jointly created by regional development agency OOST NV and the University of Twente, the company extended into Germany in 2003 via a connection to Münster and has since built an ecosystem spanning 110+ Points of Presence across the Netherlands and Germany, 2,500+ connected organizations, and 140+ service provider partners.

Its product portfolio is built on physical fiber infrastructure and Layer 2 optical networking, with four core technology pillars: Dark Fiber leased connectivity, Wavelength Division Multiplexing (WDM) with Private Connection, Private Network, and optical-layer Encrypted variants, high-capacity Ethernet services from 1 Gbit/s to 400 Gbit/s and beyond, and private Cloud Connectivity providing direct, off-public-internet access to Azure, AWS, Google Cloud, Oracle, Salesforce, and SAP. Supporting services include Datacenter Connectivity, VLAN for IT service providers, and Internet Peering through the integrated NDIX exchange network. The core differentiation is connectivity that is physically and logically separated from the public internet, with redundant routes, 24/7 NOC monitoring, and dedicated wavelengths carrying customer traffic.

NDIX generates revenue primarily through recurring subscription contracts, including long-term dark fiber leases, WDM wavelength subscriptions, Ethernet circuit rentals, and cloud connectivity services, with monthly billing and custom pricing based on network design, bandwidth, and geography. Go-to-market is enterprise field sales supplemented by a channel motion through the 140+ service provider ecosystem. In 2023, NDIX was acquired by Relined Fiber Network (itself a subsidiary of the Dutch state-owned electricity transmission operator TenneT), and its services, brand, and infrastructure are being fully consolidated into the Relined portfolio.

Name

NDIX

Legal name

Nederlands-Duitse Internet Exchange B.V.

Website

https://ndix.net

Company type

Private

Founded year

2001

Operating status

Acquired

Headcount range

11–50 employees

Short description

NDIX is a Dutch-headquartered fiber optic connectivity platform serving 2,500+ enterprises, data centers, and public sector organizations across the Netherlands and Germany with dark fiber, WDM, Ethernet, and private cloud connectivity services. Founded in 2001 and now integrated into Relined Fiber Network (TenneT-owned), it operates 110+ Points of Presence.

Ownership category

akta.pro rank

Product category

Telecom Network Connectivity Services

NAICS

Wired Telecommunications Carriers (517111), Telecommunications (517)

SIC

Computer Communications Equipment (3576), Communications Services, Nec (4899)

akta.pro primary industry

Carrier Interconnection & Peering Exchanges (IXPs, private interconnect, cross-connect) (HDAIAEAG)

Keywords

• Dark fiber connectivity
• Wavelength division multiplexing
• Ethernet connectivity services
• Private cloud connectivity
• Datacenter interconnect

Headquarters

HQ city

Enschede

HQ country

Netherlands

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Dark Fiber connectivity services: Dedicated dark fiber infrastructure leased to enterprises, data centers, hyperscalers, and network operators. Recurring revenue model based on long-term fiber lease agreements.
2. WDM (Wavelength Division Multiplexing) services: Wavelength-based connectivity services enabling multiple data streams over a single fiber. Offered as Private Connection, Private Network, or Encrypted variants. Revenue generated through capacity-based subscription.
3. Ethernet services: High-capacity Ethernet connections (1 Gbit/s to 400 Gbit/s+) between locations, data centers, and partners. Includes peering services through the NDIX network.
4. Cloud Connectivity: Private connectivity to cloud providers (Azure, AWS, Google Cloud, Oracle, Salesforce, SAP). Provides secure, direct access outside the public internet.
5. VLAN services: Virtual LAN services enabling IT service providers to connect multiple customers quickly via the NDIX network.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

NDIX provides dedicated, high-capacity fiber optic connectivity infrastructure for businesses across the Netherlands and Germany. Its portfolio comprises Dark Fiber, Ethernet (1 Gbit/s to 400 Gbit/s+), Wavelength Division Multiplexing (WDM) with Private Connection, Private Network, and Encrypted variants, private Cloud Connectivity to major hyperscalers, Datacenter Connectivity, VLAN services, and Internet Peering — delivered through an open, cross-border network with 110+ Points of Presence serving 2,500+ organizations and 140+ service providers.

Product overview

NDIX operates as a provider of high-capacity connectivity solutions, now integrated into the Relined Fiber Network portfolio. The product portfolio centers on fiber optic connectivity infrastructure comprising Ethernet (up to 400 Gbit/s), Wavelength Division Multiplexing (WDM) with Private Connection, Private Network, and Encrypted variants, Cloud Connectivity for direct private access to major cloud providers (Azure, AWS, Google Cloud, Oracle, Salesforce, SAP), Datacenter Connectivity for secure data center interconnections, VLAN services for multi-customer network connections, and Internet Peering for direct traffic exchange. NDIX's founding services include Dark Fiber infrastructure, while the NDIX network itself serves over 2,500 organizations with 110+ Points of Presence in the Netherlands and Germany.

Differentiator

Problem solved

Functional benefit

Brands

• NDIX Services: Integrated connectivity solutions including Ethernet, WDM, Cloud Connectivity, and VLAN services, now part of the Relined portfolio.

Products and services

• Ethernet Services Direct, secure Ethernet connectivity between locations, data centers, and partners with speeds from 1 Gbit/s to 400 Gbit/s and beyond, providing high capacity, low latency, and scalability for organizations dependent on real-time data traffic. Targets enterprises, data centers, and service providers needing dedicated site-to-site or site-to-cloud connectivity.
• WDM (Wavelength Division Multiplexing) Optical networking service that divides a single fiber pair into multiple wavelengths, each operating as an independent connection with capacities up to 400 Gbit/s. Available in three variants — Private Connection (long-distance site-to-site), Private Network (managed multi-site), and Encrypted (optical-level encryption preserving bandwidth) — serving government, healthcare, financial services, and large enterprises.
• Cloud Connectivity Private, dedicated network access to leading cloud platforms (Microsoft Azure, AWS, Google Cloud, Oracle Cloud, Salesforce, SAP) via closed, reliable connections outside the public internet. Designed for enterprises that require maximum security, consistent performance, and minimal latency when accessing cloud workloads.
• Datacenter Connectivity Direct fiber optic connections between business locations and data centers providing a secure, fast, and scalable environment for data exchange, backups, and cloud applications, with support for bandwidths up to 400 Gbit/s. Targets enterprises, hyperscalers, and data center operators.
• VLAN Services Virtual Local Area Network service enabling IT service providers to connect multiple customers quickly and easily via the NDIX network. Offered to ICT service providers and ISPs as a multi-tenant connectivity solution over the Relined/NDIX backbone.
• Dark Fiber Dedicated, unlit fiber optic infrastructure leased to enterprises, data centers, hyperscalers, and network operators on long-term contracts. Provides maximum scalability, low latency, and complete physical separation from the public internet, suitable for organizations requiring the highest levels of control, security, and bandwidth.
• Internet Peering Service that enables organizations to exchange traffic directly with other networks through the integrated NDIX network, allowing efficient and scalable data exchange with providers, carriers, and content parties without traversing the public internet. Used by service providers, carriers, and content networks.

Quantifiable outcome

• Bandwidth capacity up to 400 Gbit/s per connection
• +2 more outcomes

Named customers7 records

Segments8 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration6 records

Feature4 records

Partnerships

Eleven partnerships are on record, tiered flagship, core and founding.

• Relined Fiber NetworkflagshipStrategic or Co-development Partner · 1 January 2023Since 2023, NDIX has been fully integrated into Relined Fiber Network. The knowledge, infrastructure, and experience of NDIX are completely part of Relined's services. NDIX is no longer a standalone brand but forms an essential part of the broader Relined portfolio covering Dark Fiber, Ethernet, WDM, and Cloud Connectivity. TenneT is the parent company of Relined.
• Stadtwerke MünstercoreStrategic or Co-development Partner · 1 January 2003Stadtwerke Münster (municipal utility of Münster, Germany) became the third shareholder of NDIX in 2003 after the launch of a connection to Münster, Germany. This partnership marked NDIX's cross-border expansion into Germany.
• OOST NVfoundingStrategic or Co-development Partner · 1 January 2001OOST NV (a regional development agency from the Netherlands) co-founded NDIX in 2001 alongside Universiteit Twente, with the goal of providing fast and reliable internet access for businesses in Enschede. OOST NV served as the initial co-developer and shareholder of NDIX.
• Universiteit Twente (University of Twente)foundingStrategic or Co-development Partner · 1 January 2001Universiteit Twente co-founded NDIX in 2001 as the Dutch-German Internet Exchange, partnering with OOST NV. The university contributed technical expertise and served as an initial anchor tenant and shareholder.
• 140+ Service Providers in the NDIX EcosystemcoreChannel Partner/ Reseller/ DistributorOver 140 service providers operate within the NDIX ecosystem, utilizing the NDIX network infrastructure to provide internet, data traffic, and private network services to their own end customers.
• Microsoft AzurecoreTechnology or IntegrationNDIX/Relined provides private direct connectivity to Microsoft Azure cloud environment, enabling enterprises to connect to Azure via a closed, reliable network without public internet exposure.
• Amazon Web Services (AWS)coreTechnology or IntegrationNDIX/Relined provides private direct connectivity to AWS, enabling secure enterprise access to AWS cloud services through dedicated network infrastructure.
• Google CloudcoreTechnology or IntegrationNDIX/Relined provides private direct connectivity to Google Cloud, enabling enterprises to access Google Cloud services through a closed, reliable network connection.
• Oracle CloudcoreTechnology or IntegrationNDIX/Relined provides private direct connectivity to Oracle Cloud platform, enabling secure enterprise cloud access via dedicated infrastructure.
• SalesforcecoreTechnology or IntegrationNDIX/Relined provides private direct connectivity to Salesforce, enabling secure enterprise access to Salesforce services without traversing the public internet.
• SAPcoreTechnology or IntegrationNDIX/Relined provides private direct connectivity to SAP cloud services, enabling enterprises to connect securely to SAP environments via the Relined network.

Scale indicators6 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• euNetworks: Pan-European fiber infrastructure provider offering bandwidth infrastructure services to enterprises, carriers, and hyperscalers. Directly comparable to NDIX/Relined in dark fiber and wavelength services across Western Europe.
• Delta Fiber: Dutch fiber operator deploying FTTH and business-grade fiber services across the Netherlands. Comparable to NDIX in regional Dutch fiber infrastructure deployment serving both consumers and enterprise customers.
• Eurofiber: Dutch-founded open digital infrastructure provider operating fiber networks and datacenters across the Netherlands, Belgium, France, and Germany. Directly comparable to NDIX/Relined as a regional B2B fiber operator serving enterprises and data centers in NW Europe.
• AMS-IX (Amsterdam Internet Exchange): Amsterdam-based Internet Exchange operating one of the world's largest peering platforms. Directly comparable to NDIX as a Dutch-rooted, carrier-neutral interconnection and peering exchange serving regional ISPs, carriers, and content providers.
• DE-CIX: Frankfurt-headquartered Internet Exchange operating the world's largest carrier-neutral interconnection ecosystem. Directly comparable to NDIX in the German market, with extensive peering fabric across multiple German cities — overlapping with NDIX's Münster and broader Germany footprint.
• Colt Technology Services: Global B2B connectivity provider with deep fiber footprint across Europe, Asia, and North America. Comparable to NDIX in offering enterprise-grade Ethernet, wavelength, and cloud connectivity services to multinational customers.

Broad incumbents

• Equinix: Global data center and interconnection operator providing colocation and cross-connect services. Comparable to NDIX in the interconnection layer — particularly relevant since Equinix operates Cloud Exchange fabric similar to NDIX's cloud connectivity and peering products.
• Lumen Technologies: Global enterprise networking and fiber infrastructure provider (formerly CenturyLink). Comparable to NDIX in offering enterprise wavelength, Ethernet, and cloud connectivity services, but at significantly larger global scale.
• KPN: Dutch incumbent telecommunications operator with extensive nationwide fiber and copper infrastructure. Comparable as a broad incumbent providing enterprise connectivity, but operates across a much wider portfolio (mobile, consumer, wholesale) than NDIX's specialist B2B focus.
• Deutsche Telekom: German incumbent telecom with pan-European and global operations, including extensive fiber and enterprise services. Comparable in overlapping enterprise and wholesale fiber markets with NDIX in Germany, but operates at vastly larger scale across consumer, mobile, and B2B.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/ndix

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

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 NDIX