World Tunnel Congress
When the World Tunnel Congress was organized in Stockholm in May 2025, Stockholmsmässan was transformed into a global hub for knowledge exchange and innovation, with a spotlight on the future of underground infrastructure.
3000 experts under one roof
The World Tunnel Congress (WTC) is an annual international congress and exhibition that brings together leading professionals in tunnelling and underground construction. For the first time, Sweden hosted the event, organized by the Swedish Society of Mining Engineering with the support of the International Tunnelling and Underground Space Association (ITA). More than 3,000 experts participated in this world-leading congress for tunneling and other forms of underground work.
Sustainability and Swedish engineering in focus
The theme of the World Tunnel Congress 2025 was “Tunnelling into a Sustainable Future”, focusing on how underground solutions can contribute to sustainable cities and infrastructures. Sweden is highlighted as a pioneer in technological innovation – from historical pioneers such as Alfred Nobel to today’s world-leading companies and projects in electrification, autonomous systems and climate-smart solutions.
Grand opening of the Victoria Hall
The World Tunnel Congress was inaugurated to the sounds of Swedish folk music and joik by Swedish-Sami artist Jon Henrik Fjällgren.
80 student hosts from local universities
Close to 80 student hosts representing several Stockholm universities contributed to the successful delivery of the World Tunnel Congress.
600 presentations including Think Tank
The congress featured nearly 600 presentations, technical study visits to sites such as the Stockholm Bypass and the New Metro, and a Think Tank in Hall A for networking and discussions.
160 exhibitors
The Congress featured a packed exhibition with 160 exhibitors from over 80 different countries.
Explore the World Tunnel Congress
Stockholmsmässan’s venue is designed to enable meetings where innovation, knowledge and international cooperation are at the center. Explore parts of World Tunnel Congress 2025 in the video below.
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