With a quarter-century of specialised experience, Gaute Gjelsten is recognised as a top-tier Norwegian lawyer within international shipping and offshore law, specifically within marine, energy, and insurance law. His expertise encompasses marine and offshore incidents, including i.a. groundings, fires, wreck removals, collisions, salvage operations, and the management of oil spills and other pollution incidents, as well as arrest and limitation fund proceedings.

Gjelsten has represented insurers and owners in numerous major claims, often against the Norwegian State. His proficiency extends to managing jurisdiction and conflict of laws disputes.

Gaute provides seasoned advice on substantial losses under various insurance policies, including construction and operational policies, all-risks covers, reinsurance, and general coverage disputes. His advisory role extends to significant onshore and offshore claims, where he serves London-based and international insurers. Additionally, his experience covers claims under hull and machinery covers, mortgagee's interest insurance, war risks, loss of hire, cargo, charterers' liability, general liability, and Protection and Indemnity (P&I) policies, supporting both Nordic and international insurers.

Gaute's extensive experience in litigation includes representing clients before Norwegian courts and in arbitration proceedings, and he is admitted to the Norwegian Supreme Court.

Gjelsten is widely acknowledged as a top-tier Norwegian offshore and shipping lawyer, which is reflected in his rankings in major legal directories, including The Legal 500, where he is cited as a "Recommended Individual," and in Chambers and Partners, where he holds a Band 1 ranking