Norwegian Tunnelling Network (NTN) companies provide a wide range of services in the field of development, design, construction, operation and maintenance of tunnels and underground facilities. NTN is established to provide commercial services to international clients and customers.
Our network consists of various product and equipment manufacturers, consultants, contractors (including special techniques providers) as well as public sector authorities and academic and research institutions.
Academia (University & Research) members
Research and Academy
Norwegian University of Science and Technology (NTNU)
NTNU is a university with an international focus and a main profile in science and technology, a variety of programs of professional study.
Research & Advisory
For more than 70 years, SINTEF has developed solutions and innovation for society and customers all over the world. This is how SINTEF have become a world-leading research institute.
Research & Advisory
NGI is an independent international centre for applied research and consultancy in engineering-related geosciences, integrating geotechnical, geological and geophysical expertise.
Contractor & Mining Owner
Leonhard Nilsen & sønner AS
LNS is both a construction contractor, a mining contractor and a mining owner. LNS combines the best of both the construction industry and the mining industry in its projects.
Protan delivers ventilation duct systems for all sizes and lengths of tunnels and for cavern and mine excavations.
Geofrost is a geotechnical contractor delivering solutions based on ground freezing and competence about frozen soil.
Exentric Tunnel Systems deliver the next generation smart & quick installation lighting system, perfect for temporary applications in construction, operation and maintenance of tunnels.
Monark AS is producer of a complete range of Rock Drilling Tools.
Pretec Group AS
Pretec Group AS produce and offer high quality rock anchor bolts with particularly long service life using PC-Coat corrosion protection.
Timer Solutions AS
Timer Solutions AS delivers Water, fire, and frost -proofing tunnels and underground constructions in the most safe, environmentally, cost-effective and sustainable way.
Product Supplier & Consulting
AMV offer engineering, manufacturing, testing, installation services, and heavy machinery for tunneling and infrastructure on the market.
Bever Control AS
Bever Control AS is a recognized international supplier of computerized control and monitoring systems for drilling rigs in mining and tunnel operations.
Devico deliver a range of top quality instruments including directional core barrel, core orientation equipment, and both magnetic and non-magnetic downhole survey instruments.
Manufactures and delivers advanced systems for treatment and recovery of liquids in energy, environmental, municipal & utility, aquaculture, industrial and construction industries, including tunnels and mining.
EMerald Geomodelling AS
EMerald Geomodelling is a tech company dedicated to revealing unknown ground conditions, helping large infrastructure projects to reduce the need for intrusive ground investigations.
Lundgrens Norge AS
Lundgrens is a complete supplier of hoses, couplings and injection equipment for the tunnel market.
Skum Tech AS
Skum Tech AS delivers PE-foam sheet for prevention of water and frost in tunnels. Complete systems, including permanent bolt fixation to supported rock contour.
Expert Adviser & Consultant
Sovik Consulting provide expert advice and offer consultancy services in the field of infrastructure and tunnel, and facilitate exchange of knowledge and experience.
SWECO Norge AS
Sweco plans and designs and offering qualified services in the fields of consulting engineering, environmental technology and architecture. Long experience in underground projects.
Foamrox is a supplier of prefabricated solutions to the tunnel/construction industry. Light and smart solutions that contribute to a safer, quicker and a more sustainable installation.
Product & Solution Supplier
The Coring Company AS
The Coring Company provides cutting-edge software and hardware solutions to heavy industry through research, AI, and robotics, and enable digital transition through ground-breaking technology products.
Product & Service Supplier
Trafsys is a leading Nordic knowledge company that develops and supplies Intelligent Transportation Systems (ITS), based on advanced information and communication technologies.
Incitu AS provides services within consulting, management and operations to the construction industry. The company has special expertise in underground and civil engineering.
Rock Engineering Ltd
Expert adviser in rock mechanics, rock support, ground water control and general tunnelling issues. Conflict and expert witness services.
Product and service Supplier
30 years of experience from international tunnelling and provide product and services for rock stress measurements, blasting work and assistanse on rock support.