Lawyers Roger Ammann

Roger Ammann

Partner
M.A. HSG in Law and Economics, M.A. HSG in Accounting and Finance, Attorney at Law

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Location

Zurich

Contact

Direct phone: +41 58 658 55 72
roger.ammann@walderwyss.com

Curriculum Vitae

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Areas of activity: Banking, Finance & Insurance Capital Markets Private Equity & Funds Restructuring & Insolvency

Roger Ammann is a partner in and head of Walder Wyss' Banking & Finance Team. He advises banks, other financial institutions and corporate clients on all aspects of finance transactions, capital market transactions and generally on regulatory, corporate law and securities matters. In finance, he focuses on leveraged finance, asset-based finance (including real estate), structured finance, securitisation transactions and bond issuances.

Roger Ammann obtained his degree in law and economics (M.A. HSG in Law and Economics) in 2008, and a degree in accounting and finance (M.A. HSG in Accounting and Finance) in 2009, both from the University of St. Gallen (HSG). Furthermore, he is a CFA charterholder. Before joining Walder Wyss he worked during several years as attorney for leading Swiss law firms in Zurich.

Roger Ammann's working languages are German and English. He was admitted to the bar in 2011 and is a member of both the Zurich Bar Association and the Swiss Bar Association.

IFLR1000 Rankings 2026: Walder Wyss recognised as a top-tier law firm

29 September 2026

Liechtensteinisches Pfandbriefinstitut AG - Liechtensteiner Pfandbriefe Programme

27 April 2026

Walder Wyss advises bluu unit on acquisiton of IPS Gebäudetechnik AG

11 November 2025

UBS Switzerland AG issuance of EUR 1bn Fixed Rate Covered Bonds

12 September 2025

Apollo (NYSE: APO) acquires the European colocation business of STACK Infrastructure

13 August 2025

Cembra Money Bank AG CHF 1bn Auto Covered Bond Programme

30 July 2025

RealWear acquires Almer Technologies

4 December 2024

UBS Switzerland AG issuance of EUR 1bn Covered Bonds

11 October 2024

UBS Switzerland AG issuance of EUR 1.75 billion Covered Bonds

8 July 2024

Swixx Biopharma acquires Biopas to enter Latin America

28 June 2024

KLAR Partners Acquires BÜHLMANN Laboratories AG

6 June 2024

UBS Switzerland AG issuance of EUR 1 billion Covered Bonds

8 March 2024

UBS Switzerland AG issuance of CHF 450 million Covered Bonds

30 January 2024

Promotions at Walder Wyss

3 January 2024

Walder Wyss advised ITS Kanal Services AG in Connection with its new CHF 123m acquistitation and working capital facilities

31 October 2023

UBS Switzerland AG Swiss Covered Bond Program

20 October 2023

Cornèr Banca SA issues Senior Unsecured Bonds with a volume of CHF 150 m

14 July 2023

Inflexion acquires majority stake in dss+ from Gyrus Capital

6 March 2023

Cornèr Banca SA Covered Bond Programme

2 November 2022

IPI Partners to Acquire Swiss Data Center Leader Safe Host

7 July 2022

More News

Panoramic - Project Finance 2027

4 September 2026 | by Roger Ammann and David Borer | in: "Lexology: Panoramic - Project Finance 2027" | Online-Publikation

Legal 500: Lending & Secured Finance Comparative Guide - Hot Topic

2 June 2026 | by Roger Ammann and Valentin Wiesner | in: "Legal 500 Comparative Guides" | Online-Publikation

Legal 500: Lending & Secured Finance Comparative Guide - Legal Landscape

2 June 2026 | by Roger Ammann and Valentin Wiesner | in: "Legal 500 Comparative Guides" | Online-Publikation

Acquisition Finance 2026 – Trends & Developments

19 May 2026 | by Roger Ammann, David Borer, Johannes A. Bürgi and Lukas Wyss | in: "Chambers Global Practice Guides" | Online-Publikation

Legal 500: Banking & Finance Comparative Guide - Covered Bonds

11 February 2026 | by Roger Ammann and Johannes A. Bürgi | in: "Legal 500: Banking & Finance Comparative Guide - Covered Bonds" | Online-Publikation

Securitisation 2026 – Chapter Switzerland

2 February 2026 | by Johannes A. Bürgi, Roger Ammann, Lukas Wyss and Maurus Winzap | in: "Chambers Global Practice Guides" | Online-Publikation

Lexology: Structured Finance & Securitisation

26 January 2026 | by Johannes A. Bürgi, Lukas Wyss, Maurus Winzap and Roger Ammann | in: "Lexology: Structured Finance & Securitisation" | Online-Publikation

Legal 500: Project Finance Comparative Guide

12 January 2026 | by Roger Ammann and David Borer | in: "Legal 500: Project Finance Comparative Guide" | Online-Publikation

Project Finance 2025: A Chambers Global Practice Guide

5 November 2025 | by Roger Ammann and David Borer | Online-Publikation

Lexology: In-Depth: Securisation Law Switzerland

22 September 2025 | by Roger Ammann, Johannes A. Bürgi and Thomas Meister | in: "LEXOLOGY" | Online-Publikation

Acquisition Finance 2025 - Chapter Switzerland

12 May 2025 | by Roger Ammann, David Borer, Johannes A. Bürgi and Lukas Wyss | in: "Chambers Global Practice Guides" | Online-Publikation

Covered Bonds – A cost-efficient and crisis-resistant financing tool for Swiss banks

14 March 2025 | by Roger Ammann and Johannes A. Bürgi | in: "Legal 500 - Country Comparative Guides - Hot Topic | Banking & Finance" | Online-Publikation