Arntzen de Besche‘s team is experienced in handling advisory work and disputes against the Norwegian tax authorities for its list of clients. At the helm of the practice is Eyvind Sandvik, who focuses predominantly on international tax matters, including restructurings, acquisitions and treaties. Rune Tjomsås Andersen is noteworthy for his expertise across regulatory, transactional and disputes mandates, while Rudi Hamansen supports on many of the team’s most prominent cross-jurisdictional cases.

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Key clients

  • Gassco AS
  • Lime Petroleum AS
  • Abbott Norge AS
  • Abbott Diagnostics Technologies AS
  • Edison International S.p.A
  • TrønderEnergi
  • NTS ASA
  • Fagskolen Kristiania AS
  • Kistos Plc.
  • INPEX Idemitsu Norge AS
  • PGNiG Upstream Norway AS
  • Foundry Digital
  • Norsk Hydrogenforum
  • CleanCarbon AS

Work highlights

  • Represented Gassco AS in a tax treaty dispute with the Dutch tax authorities.
  • Advised on all Norwegian law aspects on the reorganisation of a client's Norwegian operation, including the integration of a former business.
  • Advised Lime Petroleum AS on several high-value transactions on the Norwegian Continental Shelf.

Practice head

The lawyer(s) leading their teams.

Eyvind Sandvik

Other key lawyers

Rune Tjomsås Andersen, Rudi Hamansen