Abion is a growing IP boutique dutifully serving a differentiated client base that encompasses SMEs and multinationals.
Notable practitioners: Christoffer Vedal and Thomas Hvammen Nicholson.
IP firms Acapo and Onsagers merged in 2025 to form Acapo Onsagers.
Acapo
Acapo was previously reanked for its IP protection and portfolio management work. The firm's patent attorneys have expertise in physics, mechanics, electronics, and telecommunications.
Notable patent practitioners: Hilde Vold-Burgess, Gunnar Nilsen Søndersrød, Trond Øvsttun, Børge Andre Hilden, and Stein Roar Gjøen.
Onsagers
Onsagers was highly rated for IP protection and portfolio management work. The firm had a large team of patent attorneys covering technical fields such as chemistry, life sciences, and engineering. Some of the attorneys previously worked for the Norwegian IP Office, and they are active in patent litigation support work. The firm also had a team for trade mark protection, IP disputes and IP-related transactions.
Notable patent practitioners: Lars-Fredrik Urang, Anette Robsahm Røhmen, Dorte Lajer, Kim Livgard and Kari Helen Simonsen.
Notable soft IP practitioners: Edmund Andre Høydahl, Eirik Rødsand, Kristoffer Weltzien, Christiin Sangvik-Jebsen, Thomas Gaarder-Olsen, Ann-Cathrin Hoel, and Ulrikke Asbøll.
AWA is one of the leading IP firms in the Scandinavian region for IP rights protection and portfolio management. It also has a team of lawyers for contentious and non-contentious legal advice.
Notable patent practitioners: Carsten Lous, Henrik Rode, Fredrik Martinsen, Trond Ramsvik and David Molenaar.
IP lawyer Patent attorney Carsten Lous is the firm's head of Norway.
Top-tier patent prosecution firm Bryn Aarflot has a team of patent attorneys with expertise in fields such as engineering, physics, and chemistry. It also has an experienced team of IP lawyers who can handle trade mark protection and disputes. The firm's business has expanded thanks to its merger with Protector IP in January 2023.
Notable patent practitioners: Kristine Rekdal, Jon D. Heggstad, Cécile Hermansen, Lars Erik Hatlen, and Harald Tafjord.
Notable trademark practitioners: Celine Jørgensen, Trine Greaker Herzog, Pål Tonna, Cecilie Berglund and Astrid Solberg.
Håmsø Patentbyrå is an IP firm that is recommended for prosecution, filing and Scandanavian administrative proceedings. The firm specialises in gas technology and aquaculture patents. Its attorneys also have expertise in renewable energy, nanotechnology, engineering, and mechanics.
Notable patent practitioners: Richard Weaver, Kjell Arne Hoff and Arnfinn Meihack and Krister Mangersnes.
Notable trademark practitioners: Reidun Rosså Korsberg.
Managing director and patent star Krister Mangersnes leads the patent department and Arnfinn Meihack. Reidun Rosså Korsberg is the manager of the trade mark and designs team.
Plougmann Vingtoft is a full-service consultancy across patents, trade marks, copyright, and design. Specialisms are IP strategies, drafting, and prosecution. The company has experience in complex opposition and litigation cases before the EPO and courts. Sector strengths are biotechnology, food technology, and acoustics. Global corporations and regional SMEs are supported from the Oslo office.
Zacco is one of the two biggest IP firms in the Scandinavian region. It can handle all the key technical fields for patent work. The firm remains a dominant force in the region for trademark protection and portfolio management work. There are also lawyers in the firm for IP disputes. The firm’s patent attorneys are experienced in supporting litigation in the national courts and the UPC.
Notable patent practitioners: Claus Chr Schmidt, Stein Aamot, Hans Langan, Rita Lillegraven, Anne Sønstevold, and Nina Westberg.
Notable soft IP practitioners: Tone Tangevald-Jensen, Thomas Rukin, Lars Henrik Stoud Platou, and Solvår Winnie Finnanger.