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TEC is the international specialist in immersed tunnelling

Tunnel Engineering Consultants (TEC) is a leading expert in immersed tunnel design, construction and project management. Specialist in immersed tunnel design and construction since 1988, TEC has delivered design and construction solutions to the majority of the world’s most challenging and innovative tunnelling projects. For more information see our promotion video.

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TEC is a permanent joint venture partnership between leading international engineering consultants  Royal HaskoningDHV and Witteveen+Bos. TEC combines knowledge, expertise and experience of the mother companies within the field of large underground projects.