Ståle Gjengset works with providing legal and strategic advice and preparing contracts in business transfers, mergers and demergers. Mr. Gjengset also has considerable experience with financing and financial restructuring. He was in charge of the first and, at present, only Norwegian refinancing that was carried out under the US "Chapter 11" regulations. In addition to acquisition financing and corporate financing, Mr. Gjengset has also assisted a number of companies in the offshore and aircraft industries with various acquisitions, sales and leasing transactions. Mr. Gjengset also has long experience with international negotiations and transactions.

Mr. Gjengset lectures regularly on financial restructuring and associated subjects in various contexts, including at the Center for Continuing Legal Education, the Norwegian Bar Association and the Norwegian Advisory Council on Bankruptcy.

Ståle Gjengset is ranked amongst Norway's most prominent experts on mergers and acquisitions, and restructuring and insolvency in Chambers Europe, Chambers Global and IFLR1000.

Ståle Gjengset is a highly regarded distressed M&A and restructuring practitioner. He assists a range of market participants, focusing on matters with international aspects in particular. Clients commend his "excellent legal knowledge and pragmatic approach".

Chambers Europe 2017


  • Mr. Gjengset advises Olympic Ship in connection with the restructuring of the shipping company.
  • Mr. Gjengset was the head of the Wiersholm team that assisted Eitzen Chemical ASA in their process towards and agreement on a financial restructuring of the company's debt of USD 850 million with the company's largest shareholder, the company's banks and the majority of the company's bond holders.
  • Mr. Gjengset was the head of the Wiersholm team that assisted Bayer AG in the acquisition of the listed Norwegian pharmaceuticals company Algeta ASA, which estimated the value of Algeta to NOK 16.2 billion (EUR 1.9 billion).

Professional Experience

  • Partner, Wiersholm, 2006
  • Partner, Arntzen de Besche Advokatfirma AS, 2001-2006
  • Partner, Advokatfirmaet de Besche & Co., 1998-2000
  • Lawyer, Advokatfirmaet de Besche & Co., 1993-1997
  • Associate, Advokatfirmaet de Besche & Co., 1991-1993


  • Cand. jur., University of Oslo, 1991