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Semar

Offshore marine engineering, mooring and subsea operations for oil and gas and floating wind projects

Lysaker, NorwayFounded 1980semar.noWebsite technologies

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Highlights

  • New on EvolcAdded 2026-10-28

About Semar

Semar provides engineering and operational services for offshore projects, including mooring system design and verification, tow and hook-up, floatover and heavy transport, diving and subsea tooling, decommissioning, and heavylift and salvage operations. Its patented Honeymooring® system is a mooring solution for floating wind farms that uses shared buoys and lightweight fiber ropes instead of steel chains.

Its clients operate in oil and gas, offshore wind and maritime projects. Customer references include work on the Hywind Tampen project, where Semar supported DOF and Aker Solutions with tow and hook-up planning and marine operation scope. Its team includes engineers, project managers and master mariners.

Semar was established in 1980 as Structural Engineering AS and is headquartered in Lysaker, Norway. The company describes itself as a multidisciplinary business with more than four decades of experience.

Product: Marine engineering and operations services for offshore projects, plus the patented Honeymooring® mooring system for floating wind farms.

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