
Mannheimer Swartling remains the go-to firm for handling investigations by the Swedish Authority for Privacy Protection. The group also has expertise in advising on the ethical use of AI and personal data, as well as on digital sustainability and human rights issues relating to data. The group has a blue-chip client base, including clients in the life sciences, telecoms, and financial sectors. Erica Wiking Häger heads the group, and has over 20 years of experience in a range of compliance and contentious matters, as well as working on global investigations and data breaches. Niklas Sjoblom is recognised for his expertise in data privacy screenings and multinational cloud mandates, while Anders Bergsten frequently advises companies in the generative AI sector. Martin Hallström is also a key contact.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- 'The team is continuously learning and innovating, and there is an ongoing education and training for their attorneys to stay abreast of the latest legal developments and technological advancements. They embrace innovation to improve efficiency and service delivery.'
- 'The law firm excels in legal expertise, client service, ethical practice, and contributes positively to the legal profession and society.'
- 'Anders Bergsten possesses outstanding communication skills. Anders can explain intricate legal concepts clearly and concisely, ensuring that clients are always informed and confident in their legal decisions. Anders' professionalism and integrity have earned him the trust and respect of both clients, colleagues, and counterparties.'
- 'Expertise and specialisation, boasting a small team of highly qualified attorneys with specialisation in various fields of law. This enables them to provide expert advice and representation across a broad spectrum of legal issues. Flexibility, can quickly call in specialist expertise in different areas.'
Key clients
- Klarna Bank
- Spotify
- Northvolt
- SAS (Scandinavian Airlines)
- Bonnier Group
- Loomis
- Castellum
- Novamedia
- ATG
- Capio S:t Görans Hospital
- Region Västra Götaland
- Kindred
Work highlights
Advising Klarna Bank on the appeal of an administrative fine imposed on Klarna by the Swedish Authority for Privacy Protection for alleged deficiencies in Klarna’s privacy notice.
Advising ToFindOut AB, a provider of background checks, in a case before the Swedish Supreme Court. The case concerned the right to access judgements and other public documents held by the courts containing personal data about criminal offenses, as well as certain constitutionally protected rights to hold and disseminate information.
Advising a major Swedish industrial manufacturing company in connection with a large-scale ransomware data breach which affected the client’s entire production and administration environment.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Practice head
Erica Wiking Häger
Other key lawyers
Niklas Sjöblom; Anders Bergsten; Martin Hallström
