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Testimonials
Collated independently by Legal 500 research team.
‘Their specialist IP knowledge is very impressive.’
‘Yngve Opsvik is an excellent operator. He advises in a confident, straightforward manner that engenders trust in the client. His experience shines through in the way he delivers strategic advice.’
‘GjessingReimers is an outstanding litigation boutique with market-leading expertise across the IP spectrum. We highly recommend the team for trade mark infringement, copyright matters and patent disputes.’
‘Ida Gjessing is friendly and highly professional at the same time. Great willingness and ability to adopt technically complex concepts.'
‘GjessingReimers is the leading IP practice in Norway with an exceptionally deep knowledge of the subject and a stellar client list.’
‘Yngve Opsvik is an exceptional litigator who has an eye for both the big picture and the detail, undoubtedly a star in the Norwegian IP litigation scene.’
‘Ida Gjessing and Yngve Opsvik, again and again, demonstrate their brilliant ability to quickly understand relevant technical details required to conduct legal assessments and present conclusions in a precise and comprehensive manner.’
Key clients
- Orkla ASA
- Glamox AS
- Aker Solutions AS
- Abbott Diabetes Care Inc.
- Welltec A/S
- Zoetis LLC
- Schneider Electric AS
- NORCE Norwegian Research Centre AS
- Beckmann AS
- Buypass AS
Work highlights
Lawyers
Hall of fame
The lawyers at the very top of the profession, widely known and respected by peers and clients for their longstanding involvement in market-leading work.

Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Next generation partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Other key lawyers
Ida Gjessing; Amund Brede Svendsen; Yngve Øyehaug Opsvik