Wiersholm advises domestic media and telecom businesses, as well as international technology clients, across all aspects of TMT, including ICT and media negotiations, data protection, and AI-related GDPR compliance. The practice is led by Hans Erik Johnsen, who advises a diverse client base including service providers, technology developers, media companies, authorities, and telecommunications providers. Data protection specialist and litigator Rune Opdahl, along with fintech expert Theresa Schumacher Walberg, are also key contacts.
Legal 500 Editorial commentary
Accolades
Client satisfaction: Sector knowledge
Testimonials
Collated independently by Legal 500 research team.
- ‘We have had the pleasure of working with Rune Opdahl and Theresa Schumacher Walberg. What truly sets them apart from competitors is their ability to combine deep legal knowledge with a pragmatic, solutions-oriented approach. They don’t just advise—they partner with us to understand the broader business context and help us navigate complex challenges with clarity and confidence. They are also proactive and good with people.’
- ‘We have worked closely with several individuals who have been impressive: Theresa Walberg: sharp legal skills, solution-oriented, and excellent in negotiations. Hans Erik Johnsen: efficient, precise, and very dependable on copyright matters.’
- ‘Wiersholm’s TMT practice stands out for combining top-tier legal expertise with a pragmatic, business-oriented approach. They excel in IT contracts, AI, IP, copyright, and marketing law, and are able to translate complex regulations into clear, practical advice. Compared with other firms, they are consistently responsive, reliable, and collaborative. Their ability to bring cross-disciplinary expertise together and adapt to our internal processes makes them a highly effective partner.’
- ‘Very knowledgeable team with a forward-leaning and pragmatic approach to practical issues within the field of data privacy.’
- ‘Great teamwork where the client does not need to care about individuals and who does what. They simply get the job done as agreed.’
- ‘Highly skilled, long and relevant experience, market knowledge, proactive in planning, as well as execution and follow-up.’
Key clients
- Schibsted Media Norge AS
- Schibsted AS
- WarnerBros Discovery
- Aller Media AS
- International Business Machines AS
- Santander Consumer Bank AS
- DNB BANK ASA
- Lyse Tele AS
- Helly Hansen AS
- SATS Norway AS
- Norwegian Labour and Welfare Administration (NAV)
- Monster AS
Work highlights
Represented Grindr Inc. in a dispute against the Norwegian State before the Court of Appeal. The case concerns the judicial review of an administrative fine of NOK 65,000,000 issued by the Norwegian Data Protection Authority, which was of the opinion that Grindr had breached the GDPR due to Grindr's sharing of data with its advertising partners.
Represented Signatur ITS AS and Perspic AS in a lawsuit brought by Axicon AS regarding alleged breaches of the Marketing Control Act section 25 on good business practice, as well as misuse of trade secrets from Axicon AS.
Lawyers
Hall of Fame
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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.
Practice head
Hans Erik Johnsen
Other key lawyers
Rune Opdahl; Theresa Schumacher Walberg