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Visualisation of the Danish tunnel entrance for the Fehmarnbelt tunnel. Trains and vehicles enter and exit the tunnel.

Increased value for society

We build infrastructure, create growth and promote sustainable societal development at no cost to the tax payer.

Sustainability

Sund & Bælt is a key player in the transport sector and holds a significant responsibility for contributing to Denmark’s green transition by operating a responsible business that balances social sustainability, environmental sustainability, and sustainable corporate governance as an integral part of the company’s core operations.

Enhanced infrastructure

We link Denmark together and promote mobility

News

February 10 2026

Public meeting on upcoming passing tracks at Kalvebod

Passing tracks will be established on the railway at Kalvebod in Copenhagen to ensure increased capacity for growing passenger and freight traffic. Sund & Bælt now invites the public to a meeting about, among other things, the project’s preliminary timeline.

January 30 2026

A new special vessel at the Fehmarnbelt project

January 21 2026

Preparations underway for immersing tunnel elements into the Fehmarnbelt

January 20 2026

Sund & Bælt at the Danish Marine Science Meeting 2026

"Our ambition is to build infrastructure that connects Denmark and promotes sustainable mobility for the benefit of people, business and security of supply."

Mikkel Hemmingsen, CEO at Sund & Bælt

Projects

Preliminary study of a fixed link across the Kattegat

If the Kattegat link becomes a reality, it will be the largest and most expensive construction project in Danish history.

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Østlig Ringvej

In a new project, the so-called Havnetunnel - also called Østlig Ringvej - is planned and built in Copenhagen, as part of the project: the artificial island Lynetteholmen.

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Expansion of Copenhagen Airport Station

In the coming years, we will expand the train station at Copenhagen Airport, so that there will be room for more passenger and freight trains on the railway.

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Our links

The Storebælt link and the Øresund link, and soon also the Fehmarn Belt Tunnel. As Danes, we are blessed with long, beautiful coastlines and parts of the country separated by water. With our links we get closer to each other.

Sustainability

Our purpose is to contribute to creating growth and cohesion in Denmark by running a responsible company that balances consideration for the economy, people and the environment.

Tolling contributes to green transformation of infrastructure

More than 20 years of experience and competencies in user-paid infrastructure enable us to develope the digital traffic and payment solutions of the future for sustainable infrastructure.

Live from our links

Live from the Storebælt Bridge and from the construction of the Fehmarnbelt link