Dellner Dampers AB is an innovative Swedish company that supplies solutions that solve the problems with vibration and energy absorption in industries such as Bridge, Rail, Port, Energy and more. Dellner Dampers are a world leading company in the field of viscous (hydraulic) stay cable dampers. The dampers mitigates wind/rain induced cable vibrations. To this date Dellner Dampers have supplied to more than 30 large span cable stayed bridges all over the world. Dellner Dampers are also supplying gas hydraulic energy absorbers, the HYBUFF G-series, used in movable bridges.
Tensacciai, now renamed TENSA, was founded in 1951 with headquarters in Milan, Italy. It is now active in over 50 countries. TENSA is a leader in stay cables, post-tensioning, ground anchors, anti-seismic devices, structural bearings and expansion joints. TENSA has extensive references and numerous certifications for its products worldwide.