Oreiller

Sébastien
Oreiller

Associate
  • Portrait
  • Career

Sébastien Oreiller is a member of Homburger’s Litigation Team. His main areas of interest lie in civil proceedings, private international law, debt enforcement and attachment of assets. He also represents clients in all criminal and administrative proceedings. Sébastien has a keen interest in arbitration, particularly in setting aside and enforcement proceedings, as well as in the influence of public international law on domestic law.

Sébastien Oreiller is a member of Homburger’s Litigation Team. His main areas of interest lie in civil proceedings, private international law, debt enforcement and attachment of assets. He also represents clients in all criminal and administrative proceedings. Sébastien has a keen interest in arbitration, particularly in setting aside and enforcement proceedings, as well as in the influence of public international law on domestic law.

2025
Associate at Homburger
2024
PhD student at the University of Basel
2024
Bar admission
2022
Trainee lawyer in an international commercial law firm in Geneva
2022
University of Geneva (CAS in Legal Professions)
2021
University of Basel (MLaw)
2020
University of Geneva (BLaw)
2018
University of Geneva (Bachelor in International Relations)
2018
Exchange semester at the University of Würzburg (Germany)

Join the Team

Career

Sébastien Oreiller

Associate

Sébastien Oreiller is a member of Homburger’s Litigation Team. His main areas of interest lie in civil proceedings, private international law, debt enforcement and attachment of assets. He also represents clients in all criminal and administrative proceedings. Sébastien has a keen interest in arbitration, particularly in setting aside and enforcement proceedings, as well as in the influence of public international law on domestic law.

Career

2025
Associate at Homburger
2024
PhD student at the University of Basel
2024
Bar admission
2022
Trainee lawyer in an international commercial law firm in Geneva
2022
University of Geneva (CAS in Legal Professions)
2021
University of Basel (MLaw)
2020
University of Geneva (BLaw)
2018
University of Geneva (Bachelor in International Relations)
2018
Exchange semester at the University of Würzburg (Germany)

Languages

French, English, German, Italian

Bar Registration

Admitted to the Swiss bar

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