Pascale Köster is partner at Walder Wyss in Zurich. Her practice focuses on corporate and regulatory investigations as well as complex dispute resolution. She is highly experienced in conducting internal investigations and advising on enforcement actions, often in sensitive, high-stakes matters involving cross-border elements. Pascale regularly supports clients in navigating crisis situations requiring swift, strategic response.

Her practice centers on white-collar crime, with a strong emphasis on matters involving the financial services, healthcare, and pharmaceutical industries

She earned her Master of Law (MLaw) from the University of Bern in 2013, specializing in International and European Law. Before joining Walder Wyss as a junior associate in 2013, she worked as a law clerk at the District Court of Berner Jura-Seeland. Pascale was admitted to the bar in 2016. To further strengthen her investigative expertise, she completed a Master of Advanced Studies in Economic Crime Investigation (MAS ECI) at the Lucerne School of Business in 2021.

Fluent in German, English, and French, Pascale is registered with the Zurich Bar Registry and admitted to practice throughout Switzerland.

Significant Accomplishments

Walder Wyss recognised in the GIR 100 2025 Edition

Walder Wyss erstreitet Grundsatzurteil zum Anwaltsgeheimnis bei internen Untersuchungen mit Bezug zu Rechtsstreitigkeiten

Pascale Köster has been elected Chapter Leader of the Swiss Chapter of the Women's White Collar Defense Association (WWCDA)

Promotions at Walder Wyss

Leaders League Ranking 2023 - Excellent for Internal Investigations & Compliance

IFLR/Euromoney's Rising Stars Expert Guide 2022

Pascale Köster in der 100 'Women in Investigations' Liste der Global Investigation Review

Beförderungen bei Walder Wyss

Walder Wyss führt Untersuchung für das Universitätsspital Zürich durch

Die Schweiz intensiviert die Zusammenarbeit mit europäischen Staaten im Kampf gegen transnationale Korruption
Legal 500 Country Comparative Guides 2025: White Collar Crime - Switzerland
Bundesgericht stärkt das Anwaltsgeheimnis bei internen Untersuchungen
GIR Academy's Life Cycle of an Internal Investigation
Legal 500 Country Comparatives Guides 2024: White Collar Crime - Switzerland
Doing Business in Switzerland - A Practical Guide
Adhäsionsklage vs. vertragliche Ansprüche
Corporate Client Event
GRENZEN DER BEWEISERHEBUNG IN DER SCHWEIZ BEI VERFAHREN UND UNTERSUCHUNGEN IM AUSLAND
Doing Business in Switzerland - A Practical Guide
Mobbing, sexuelle Belästigung und Whistleblowing: Wie gehe ich als Arbeitgeber damit um?
Rechtsprechungspanorama Schiedssachen
Konsumenten in der Schiedsgerichtsbarkeit - Aus Schweizer Sicht