Thomas provides advice and dispute resolution services, including litigation and negotiations, to Norwegian and foreign clients, particularly within the energy sector (oil and gas). His experience extends to both contractual and regulatory issues. He also has particular experience within public procurement, state aid and competition law as well as insurance\/pension related issues.<\/p>\n
Thomas is admitted to the Supreme Court and litigates regularly before Norwegian courts and arbitration panels. In addition, he also has experience from international arbitration, the EFTA Court and the European Court of Human Rights.<\/p>\n
Chambers and Partners and Legal 500 have ranked Thomas as one of Norway’s most prominent lawyers on dispute resolution, competition law and public procurement. In addition, he is ranked as one of Norway\u2019s leading lawyers on procurement law in the Norwegian Financial Daily\u2019s annual lawyers’ survey.<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"editor_notices":[],"employee_title":"Partner","employee_mobile":"+47 95 20 04 03","employee_landline":"+47 21 02 10 62","employee_email":"thon@wiersholm.dev08.dekodes.no","_employee_initials":"thon","_employee_user_id":"5c2c8a3ffd90963a2965d33a","_employee_cv_id":"5c2c8a3ffd90963a2965d33b","_employee_synced":"1769503845","employee_work_experiences":[{"description":"Partner","employer":"Wiersholm","year_from":"2016"},{"description":"Partner","employer":"Kluge Advokatfirma","year_from":"2010"},{"description":"Associate\/Lawyer","employer":"The Office of the Attorney General","year_from":"2000"}],"employee_educations":[{"degree":"LLM (with Distinction)","school":"London School of Economics","year_to":"2004"},{"degree":"Cand. Jur.","school":"University of Oslo","year_to":"2000"}],"employee_positions":[],"employee_honors_awards":[{"for_work":"Dispute Reolustion","issuer":"Chambers Europe","name":"Band 2","year":"2025","starred":""},{"for_work":"Competition\/Antitrust: Public Procurement","issuer":"Chambers Europe","name":"Band 3","year":"2025","starred":""},{"for_work":"Dispute resolution","issuer":"Advokatunders\u00f8kelsen, Kapital Jus","name":"Top 10","year":"2024","starred":""},{"for_work":"Dispute Resolution","issuer":"Chambers Global","name":"Band 2","year":"2025","starred":""},{"for_work":"Dispute Resolution","issuer":"Chambers Europe","name":"Band 2","year":"2024","starred":""},{"for_work":"Competition\/Antitrust: Public Procurement","issuer":"Chambers Europe","name":"Band 3","year":"2024","starred":""},{"for_work":"Dispute Resolution","issuer":"Chambers Global","name":"Band 2","year":"2024","starred":""},{"for_work":"Dispute Resolution","issuer":"Chambers Global","name":"Band 2","year":"2023","starred":""},{"for_work":"Dispute Resolution","issuer":"Chambers Europe","name":"Band 2","year":"2023","starred":""},{"for_work":"Competition\/Antitrust: Public Procurement","issuer":"Chambers Europe","name":"Band 3","year":"2023","starred":""},{"for_work":"Dispute resolution","issuer":"Advokatunders\u00f8kelsen, Finansavisen","name":"Top 10","year":"2023","starred":""},{"for_work":"Competition\/Antitrust: Public Procurement - Norway","issuer":"Chambers Europe","name":"Band 3","year":"2022","starred":""},{"for_work":"Dispute Resolution","issuer":"Chambers Europe","name":"Band 2","year":"2022","starred":""},{"for_work":"Dispute Resolution - Norway","issuer":"Chambers Global","name":"Band 2","year":"2022","starred":""},{"for_work":"Competition\/Antitrust: Public Procurement - Norway","issuer":"Chambers Europe","name":"Band 3","year":"2021","starred":""},{"for_work":"Dispute Resolution - Norway","issuer":"Chambers Global","name":"Band 2","year":"2021","starred":""}],"employee_project_experiences":[],"employee_recommendations":[{"long_description":"Thomas Naalsund is absolutely fantastic to work with. He quickly understands the issues and is excellent in court.","recommender":"Legal 500, 2025"},{"long_description":"He is experienced and shines in court.","recommender":"Chambers Global, 2025"},{"long_description":"He understands complex factual issues and is able to communicate them in a pedagogical manner.","recommender":"Chambers Global, 2025"},{"long_description":"Thomas Naalsund is Norway's best procedural lawyer. He is well prepared, strong on the technical side, easy to listen to, and everything he says is substantiated.","recommender":"Chambers Global, 2024 "}]},"authorisation_tax":[7],"award_tax":[],"competence_area_tax":[51,15,28,40,41,9,39,61,62],"role_tax":[57],"class_list":["post-352","employee","type-employee","status-publish","hentry","authorisation_tax-advokat","competence_area_tax-dispute-resolution","competence_area_tax-eu-and-eea-law","competence_area_tax-international-commercial-arbitration","competence_area_tax-offshore-services","competence_area_tax-oil-gas-and-ccs","competence_area_tax-professional-and-directors-liability","competence_area_tax-public-procurement","competence_area_tax-public-sector","competence_area_tax-state-aid-and-foreign-subsidies","role_tax-partner"],"yoast_head":"\n