Regarded for its international arbitration, commercial litigation, and construction sector expertise, Westerberg & Partners is well known for advising high-profile and blue-chip clients. Maria Fogdestam Agius heads the practice, where she has expertise in public international law, alongside working on cases concerning sovereign immunity. Ginta Ahrel specialises in international commercial litigation and investment arbitration and enforcement work, and has significant experience in front of the Swedish Supreme Court. Therese Isaksson is another key contact; she is frequently engaged in construction, insurance, and international trade disputes. Natalia Petrik specialises in international arbitration.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘ A leading disputes boutique in Sweden. I was particularly impressed by their ability to process a very complex factual and legal background and analyse it from the perspective of Swedish law.’
- ‘Westerberg & Partners is a boutique dispute resolution practice, with an east-west characteristic to its dispute portfolio. It has made strategic recruitments from leading arbitral institutions and law-firms, to ensure the very best know-how and skill set within its team, including fluency in the Russian language.’
- ‘Ginta Ahrel is an experienced, intelligent, and structured practitioner with a strategic mindset. Natalia Petrik adds deep insight into institutional arbitration practices.’
- ‘The litigation team delivers effective solutions in complex cases, combining practical experience with well-calibrated legal strategies. They stand out through collaboration and rigour in case management.’
- ‘Ginta Ahrel stands out through her professionalism, strategic thinking, and results-oriented approach. We especially appreciate her clear vision and dedication in handling complex cases.’
- ‘The team has strong expertise in international arbitration, both commercial and investor-state, in particular in disputes involving sovereigns.’
Key clients
- Republic of Ukraine
- Kyrgyz Republic
- Zaza Okuashvili
- Anatolie Stati, Ascom Group S.A. et al
- AIG Europe Insurance Group
- Gjensidige Forsikring ASA
- Aztiq Partners AB
- NyxAir OÜ
Work highlights
Acting for Ukraine in two separate proceedings over the set aside of an arbitral award rendered in 2021, regarding a $6bn claim brought by investors under the Energy Charter Treaty.
Acting for the Kyrgyz Republic in proceedings to challenge an investment award before the Swedish courts.
Acting for Anatolie Stati et al against the Republic of Kazakhstan and the National Bank of Kazakhstan before the Swedish courts.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Leading associates
Leading associates with regular involvement in their team's key work, and recognition from peers or clients as being ones to watch.
Practice head
Maria Fogdestam Agius
Other key lawyers
Ginta Ahrel; Therese Isaksson; Natalia Petrik; Stefan Bessman