From transmission tower to fiber optic network

DELTA Fiber is building the digital infrastructure of the future. With an open fiber-optic network that connects a growing number of households and businesses, the company is making fast and reliable internet accessible to everyone in the Netherlands. What began as a regional collaboration in Zeeland and Westland has grown into a national organization that is helping move the country forward with fiber.

DELTA Fiber was formed in 2018 after investment firm EQT acquired DELTA’s consumer division in 2017 and merged it with Caiway a year later. From that moment on, the mission became clear: accelerating the whole of the Netherlands with fiber.

Where DELTA and Caiway were once regional pioneers, their merger now forms the foundation of an organization that is rapidly connecting the Netherlands digitally. With an investment of more than 2 billion euros, DELTA Fiber is building an open fiber network that already connects roughly 1.7 million addresses. The result is one of the fastest-growing fiber networks in the Netherlands.

Within DELTA Fiber, the brands DELTA and Caiway provide services as ISPs on this network. Both offer internet, TV, phone, and mobile services to consumers and businesses, each with its own regional identity. In the coming years, these brands will continue growing together under the name DELTA, creating a strong national consumer brand that connects customers across the Netherlands.

A new force in fiber

From rural areas to city centers: accelerating fiber rollout

From rural areas to city centers: accelerating fiber rollout

After its establishment in 2018, DELTA Fiber initially focused on the rural parts of the Netherlands—precisely where high-speed internet was needed most. From that foundation, the company has expanded step by step into villages, smaller cities, and eventually the larger metropolitan areas. This approach, which combines local collaboration with national scale, enables more and more households and businesses to be connected to fast and reliable internet.

One organization, one mission

With the creation of DELTA Fiber, everything comes together. DELTA contributes Zeeland’s reliability, customer focus, and decades of network experience from ZeelandNet, combined with Caiway’s innovative strength and technical expertise. This combination has created a strong, nationwide organization that is accelerating the Netherlands with fiber. Backed by the financial capacity of investor EQT, DELTA Fiber can rapidly expand both its network and its services.

Within DELTA Fiber, DELTA Netwerk forms the core of the infrastructure. This organization is responsible for the construction, expansion, and management of the fiber network across the Netherlands. Its origins lie in Glasvezel Buitenaf, which continued under the name DELTA Netwerk in 2020. With investor Stonepeak joining in 2022, fiber deployment accelerated even further. As a result, DELTA Netwerk has grown into one of the key driving forces behind the fiber rollout in the Netherlands.

Today, DELTA Fiber consists of DELTA Netwerk, which builds and manages the fiber network, and the provider DELTA, which delivers internet, TV, phone, and mobile services to customers nationwide over this network. The Caiway brand is gradually integrating with DELTA, ultimately forming one strong national provider brand that connects millions of people in the Netherlands with fiber.

DELTA Fiber builds not only fast but also smart. With the introduction of XGS-PON technology, the network enables symmetrical internet speeds of up to 10 Gbps. As early as 2021, DELTA became the first major provider in the Netherlands to introduce consumer internet speeds of up to 8 Gbps, a national first.

DELTA Fiber’s fiber connections are ready for the digital future: from cloud-based working and 4K streaming to remote healthcare and smart cities. Fiber is also one of the most energy-efficient fixed telecom technologies. By investing in efficient technology and continuously improving how fiber is deployed, DELTA Fiber is building a network that is not only fast but also sustainable in both use and maintenance.

Technology and innovation at top speed

The foundation of today: pioneers in connection

DELTA Fiber’s fiber ambitions are rooted in more than forty years of networking experience in the Netherlands. In 1981, seven municipalities in Westland joined forces to build a shared television network: CAI Westland. The 120-meter transmission tower in Naaldwijk became the symbol of local cooperation and formed the basis of what would later become Caiway.

In 1985, Zekatel, a subsidiary of DELTA N.V., followed by building a cable network in Zeeland. Ten years later, in 1995, CAIW made history as one of the first cable providers to introduce internet over cable, while that same year ZeelandNet became the leading internet provider in Zeeland.

In the years that followed, innovations came quickly: the transition from analog to digital, the introduction of HD channels, and the first experiments with fiber. Both companies repeatedly proved themselves to be pioneers, building the infrastructure that DELTA Fiber would later build upon.

The Netherlands connected, ready for the future

The Netherlands connected, ready for the future

Today, DELTA Fiber is one of the largest network companies in the Netherlands, with fiber in cities, towns, and rural areas. The organization continues to invest in expansion, innovation, and sustainability, ensuring that every Dutch resident can benefit from fast and reliable internet, interactive TV, and mobile services.

 

What began with local antennas and cables has grown into a national force in digital infrastructure. With DELTA Netwerk as the builder of the fiber network and DELTA as the provider brand serving all customers, DELTA Fiber is accelerating and building toward a future in which everyone is connected to the world through fiber.

Our brands:
DELTA Netwerk DELTA Caiway