
With expertise in construction, transport, and real estate litigation, the team at Advokatbyrån Wallin & Partners AB has experience acting before the Swedish courts and the Swedish Ministry of Justice. Group head Martin Wallin has extensive experience in acting for states, alongside recently being selected for the European Commission’s list of eligible arbitrators and trade and sustainable development. Magnus Pärssinen is a key contact for commercial litigation, while Anna Sundquist is a notable name for insurance and automotive litigation. Maria Sundqvist is another key name.
Legal 500 Editorial commentary
Accolades
Client satisfaction: NPS ®
Testimonials
Collated independently by Legal 500 research team.
- ‘The team is experienced, consisting of a mix of older lawyers with years of litigation and arbitration experience, and younger lawyers recruited from the courts. In comparison to other dispute resolution practices, you get much more experienced teams at Wallin & Partners.’
- ‘Martin Wallin has many years of experience and is well-known and respected in the Swedish litigation and arbitration community. He is relaxed and very easy to work with.'
- ‘The team has an efficient way of working and quickly gets a grip of the topic and prioritises what's most important. Professional in their way of working and stand out in a positive sense when it comes to, for example, guidance and advice to clients.’
- ‘Magnus Pärssinen has been extremely service-minded and available, gets a grip of the subject quickly, solution-oriented, and very strategic.’
- ‘Magnus Pärssinen knows how to focus on the major points and to select the relevant facts and legal issues, and is also very strong during hearings. André Mossberg is very knowledgeable, with fantastic analytical and strategic skills.’
- ‘The team is highly competent and has a great ability to drive the case forward. They always find opportunities and are tactically knowledgeable.’
Key clients
- Republic of Poland
- Peab Sverige AB
- Nordnet Bank AB
- Bravida Sverige AB
- The City of Västerås
Work highlights
Represented the Republic of Poland in a challenge proceeding relating to an arbitral award rendered based on the Energy Charter Treaty. In May 2025, the Supreme Court ruled in favour of the Republic of Poland.
Represented Peab against Unibail Rodamco in a challenge proceeding before the Svea Court of Appeal regarding the arbitral award regarding the construction of Mall of Scandinavia. In its ruling on 28 May 2025, the Court of Appeal dismissed essential parts of the challenge and upheld the award in respect of Peab's entire claim, corresponding to approximately SEK1.4bn.
Representing Bravida Sverige AB in a dispute against AFA Sjuk Tjänstepensionsaktiebolag, relating to Bravida’s claim for reimbursement of insurance premiums of appr. €3m.
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.

Practice head
Martin Wallin
Other key lawyers
Magnus Pärssinen; Anna Sundquist; Maria Sundqvist; Anna Sverker Kabiri; André Mossberg
