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Key contacts
Partner: Florian Gunz Niedermann
Partner: Pierre-Alain Guillaume
Partner: Olivier Nicod
Partner: Katja Schott-Morgenroth
Quick facts
Number of lawyers

300

Number of partners

83

Languages

Albanian, Arabic, Bosnian, Bulgarian, Croatian, Czech, Dutch, English, Farsi, French, German, Greek, Hebrew, Hungarian, Italian, Japanese, Norwegian, Polish, Portuguese, Rhaeto Romanic, Russian, Serbian, Spanish, Swedish

Key practice areas
Banking and finance
Capital markets : Debt
Capital markets : Equity
Capital markets : Structured finance and securitisation
Financial and corporate
Financial services regulatory
Restructuring and insolvency
M&A
Project development
Firm overview

Walder Wyss is one of Switzerland’s leading law firms, specialising in corporate and commercial law, banking and finance, intellectual property and competition law, dispute resolution and tax law. Walder Wyss has established a leading position in specific sectors and product areas. Its national and international networks of correspondents and partners from a broad range of disciplines are selected according to the highest standards of professional competence.

Client feedback

“Extremely responsive, knowledgeable, patient. Careful, precise. Readily explained local formalities.”

“Hands on work mentality, always punctual and try to find the best possible outcome for all sides.”

Practice areas
  • Arbitration
  • Art & Entertainment
  • Banking, Finance & Insurance
  • Capital Markets
  • Commercial Contracts
  • Competition
  • Corporate / M&A
  • Data & Technology
  • Employment
  • Energy & Infrastructure
  • ESG & Sustainability
  • Healthcare & Life Sciences
  • Intellectual Property
  • Litigation
  • Notarial Services
  • Private Clients
  • Private Equity & Funds
  • Public Law & Litigation
  • Public Procurement
  • Real Estate & Construction
  • Restructuring & Insolvency
  • Sports
  • Start-ups & Venture Capital
  • Tax
  • White Collar Crime & Investigations
Key practice contacts and recent transactional highlights

Banking & Finance:
Pierre-Alain Guillaume
Partner
pierre-alain.guillaume@walderwyss.com 

Francis Nordmann
Partner
francis.nordmann@walderwyss.com

Lukas Wyss
Partner
lukas.wyss@walderwyss.com

Recent transactional highlights:

  • Advising Swiss Life Ltd. (SIX-listed) on its EUR 750m undated subordinated bond;
  • Advising Gategroup (SIX-delisted) on its CHF 350m bond.
  • More deals and cases.

Mergers & Acquisitions:
Urs P. Gnos
Partner
urs.gnos@walderwyss.com

Markus Vischer
Senior Counsel
markus.vischer@walderwyss.com

Urs Schenker
Counsel
urs.schenker@walderwyss.com

Recent transactional highlights:

  • Advising Sanofi on its strategic partnership with Lonza regarding the establishment of a joint venture to build and operate a large-scale facility;
  • Advising the sole owner of software solution provider AutoForm on the sale of a majority stake in the AutoForm Group to Astorg Partners, one of the most successful independent private equity companies in Europe;
  • Advising Allied World Assurance Company Holdings (NYSE-listed) on its USD 4.9bn sale to Fairfax Financial Holdings Limited (TSX-listed) through public exchange offer.
  • More deals and cases.

Capital Markets:
Theodor Härtsch
Partner
theodor.haertsch@walderwyss.com

Alex Nikitine
Partner
alex.nikitine@walderwyss.com

Lukas Wyss
Partner
lukas.wyss@walderwyss.com

Recent transactional highlights:

  • Advising Auris Medical Holding AG (NASDAQ-listed) on its first Controlled Equity Offering (structured as an “at the market offering”);
  • Advising a syndicate of lenders in connection with the public takeover offer for all shares in Kuoni Reisen Holding AG (SIX-delisted).
  • More deals and cases.

Real Estate:
Johannes A. Bürgi
Partner
johannes.buergi@walderwyss.com

Francis Nordmann
Partner
francis.nordmann@walderwyss.com

Marco Strahm
Partner
marco.strahm@walderwyss.com

Recent transactional highlights:

  • Advising the seller of a large life science campus in Basel towards the community of Basel as buyer;
  • Advising Pradera on the acquisition of a Swiss real estate asset within a pan-European real estate portfolio of IKEA Centers.
  • More deals and cases.

TMT:
Mark A. Reutter
Partner
mark.reutter@walderwyss.com

Hans Rudolf Trüeb
Partner
hansrudolf.trueb@walderwyss.com

Recent transactional highlights:

  • Advising a global Swiss-based financial services group on several global IT outsourcing transactions, including drafting and negotiating the contracts and assisting in their implementation;
  • Advising more than 200 companies of largest Swiss retailer as lead advisors on its global GDPR implementation project.
  • More deals and cases.

For a complete list of our areas of expertise please visit: https://www.walderwyss.com/en/practice-areas/

Other offices
  • Switzerland
    14 Rue du Rhône
    1204 Geneva
    T: +41 58 658 30 00

  • Switzerland
    Aeschenvorstadt 48
    4051 Basel
    T: +41 58 658 10 00

  • Switzerland
    Christoffelgasse 6
    3011 Bern
    T: +41 58 658 20 00

  • Switzerland
    Avenue du Théâtre 1
    1005 Lausanne
    T: +41 58 658 80 00

  • Switzerland
    Via F. Pelli 12
    6901 Lugano
    T: +41 58 658 40 00

Address:
Seefeldstrasse 123
Zurich, 8034
Tel:+41586585858 Email:Contact Us Web Address:https://www.walderwyss.com/en
Rankings published in 2026
Banking and finance
Tier 2
22 firms ranked
View full list

Tier 1

Bär & Karrer
7 practice areas
View full profile
Homburger
8 practice areas
View full profile
Lenz & Staehelin
9 practice areas
View full profile
Niederer Kraft Frey
9 practice areas
View full profile

Tier 2

Advestra
7 practice areas
View full profile
Baker McKenzie
7 practice areas
View profile
Pestalozzi
8 practice areas
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Schellenberg Wittmer
8 practice areas
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Walder Wyss
9 practice areas
View full profile

Tier 3

CMS von Erlach Partners
7 practice areas
View full profile
Loyens & Loeff
8 practice areas
View full profile
MLL Legal
8 practice areas
View full profile
VISCHER
7 practice areas
View full profile

Tier 4

Bratschi
6 practice areas
View full profile
FBT Attorneys-at-law
3 practice areas
View full profile
Kellerhals Carrard
8 practice areas
View profile
Prager Dreifuss
9 practice areas
View full profile
Wenger Plattner
8 practice areas
View full profile
Wenger Vieli
10 practice areas
View full profile
burckhardt Ltd
4 practice areas
View full profile

Notable

Buis Bürgi
2 practice areas
View full profile
Oberson Abels
4 practice areas
View profile
Capital markets : Debt
Tier 1
17 firms ranked
View full list

Tier 1

Homburger
8 practice areas
View full profile
Niederer Kraft Frey
9 practice areas
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Walder Wyss
9 practice areas
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Tier 2

Advestra
7 practice areas
View full profile
Baker McKenzie
7 practice areas
View profile
Bär & Karrer
7 practice areas
View full profile
Lenz & Staehelin
9 practice areas
View full profile
Pestalozzi
8 practice areas
View full profile

Tier 3

Kellerhals Carrard
8 practice areas
View profile
MLL Legal
8 practice areas
View full profile
Schellenberg Wittmer
8 practice areas
View full profile
VISCHER
7 practice areas
View full profile

Notable

CMS von Erlach Partners
7 practice areas
View full profile
Lindemann Law
1 practice area
View profile
Prager Dreifuss
9 practice areas
View full profile
Wenger Vieli
10 practice areas
View full profile
valfor Rechtsanwälte
8 practice areas
View profile
Capital markets : Equity
Tier 2
16 firms ranked
View full list

Tier 1

Bär & Karrer
7 practice areas
View full profile
Homburger
8 practice areas
View full profile
Lenz & Staehelin
9 practice areas
View full profile
Niederer Kraft Frey
9 practice areas
View full profile

Tier 2

Advestra
7 practice areas
View full profile
Baker McKenzie
7 practice areas
View profile
Walder Wyss
9 practice areas
View full profile

Tier 3

Kellerhals Carrard
8 practice areas
View profile
MLL Legal
8 practice areas
View full profile
Pestalozzi
8 practice areas
View full profile
Schellenberg Wittmer
8 practice areas
View full profile

Tier 4

VISCHER
7 practice areas
View full profile

Notable

CMS von Erlach Partners
7 practice areas
View full profile
Prager Dreifuss
9 practice areas
View full profile
Wenger Vieli
10 practice areas
View full profile
valfor Rechtsanwälte
8 practice areas
View profile
Capital markets : Structured finance and securitisation
Tier 1
8 firms ranked
View full list

Tier 1

Homburger
8 practice areas
View full profile
Niederer Kraft Frey
9 practice areas
View full profile
Walder Wyss
9 practice areas
View full profile

Tier 2

Lenz & Staehelin
9 practice areas
View full profile
Pestalozzi
8 practice areas
View full profile

Tier 3

MLL Legal
8 practice areas
View full profile
Schellenberg Wittmer
8 practice areas
View full profile

Notable

Kellerhals Carrard
8 practice areas
View profile
Financial services regulatory
Tier 1
21 firms ranked
View full list

Tier 1

Bär & Karrer
7 practice areas
View full profile
Homburger
8 practice areas
View full profile
Lenz & Staehelin
9 practice areas
View full profile
MLL Legal
8 practice areas
View full profile
Niederer Kraft Frey
9 practice areas
View full profile
Pestalozzi
8 practice areas
View full profile
Walder Wyss
9 practice areas
View full profile

Tier 2

CMS von Erlach Partners
7 practice areas
View full profile
FBT Attorneys-at-law
3 practice areas
View full profile
Oberson Abels
4 practice areas
View profile
Schellenberg Wittmer
8 practice areas
View full profile
VISCHER
7 practice areas
View full profile

Tier 3

Barandun
3 practice areas
View full profile
Kellerhals Carrard
8 practice areas
View profile
Künzi Hess MacNab
3 practice areas
View profile
Loyens & Loeff
8 practice areas
View full profile
Wenger Plattner
8 practice areas
View full profile
Wenger Vieli
10 practice areas
View full profile

Notable

373 Avocats & Associés
1 practice area
View profile
Advestra
7 practice areas
View full profile
Nobel & Partner
1 practice area
View profile
M&A
Tier 2
26 firms ranked
View full list

Tier 1

Bär & Karrer
7 practice areas
View full profile
Homburger
8 practice areas
View full profile
Lenz & Staehelin
9 practice areas
View full profile
Niederer Kraft Frey
9 practice areas
View full profile

Tier 2

Pestalozzi
8 practice areas
View full profile
Schellenberg Wittmer
8 practice areas
View full profile
Walder Wyss
9 practice areas
View full profile

Tier 3

Advestra
7 practice areas
View full profile
Baker McKenzie
7 practice areas
View profile
CMS von Erlach Partners
7 practice areas
View full profile
Kellerhals Carrard
8 practice areas
View profile
Loyens & Loeff
8 practice areas
View full profile
MLL Legal
8 practice areas
View full profile
VISCHER
7 practice areas
View full profile
Wenger Vieli
10 practice areas
View full profile

Tier 4

Bratschi
6 practice areas
View full profile
Wenger Plattner
8 practice areas
View full profile
id est avocats
3 practice areas
View profile

Tier 5

Prager Dreifuss
9 practice areas
View full profile
burckhardt Ltd
4 practice areas
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Notable

BMG Avocats
2 practice areas
View profile
Barandun
3 practice areas
View full profile
Eversheds Sutherland
1 practice area
View profile
Goldblum and Partners
5 practice areas
View full profile
Kasser Schlosser Avocats
1 practice area
View profile
valfor Rechtsanwälte
8 practice areas
View profile
Project development
Notable
4 firms ranked
View full list

Notable

Niederer Kraft Frey
9 practice areas
View full profile
Walder Wyss
9 practice areas
View full profile

Active

Lenz & Staehelin
9 practice areas
View full profile
Wenger Vieli
10 practice areas
View full profile
Restructuring and insolvency
Tier 2
21 firms ranked
View full list

Tier 1

Lenz & Staehelin
9 practice areas
View full profile
Wenger Plattner
8 practice areas
View full profile

Tier 2

Bär & Karrer
7 practice areas
View full profile
Homburger
8 practice areas
View full profile
Kellerhals Carrard
8 practice areas
View profile
Niederer Kraft Frey
9 practice areas
View full profile
Schellenberg Wittmer
8 practice areas
View full profile
Walder Wyss
9 practice areas
View full profile

Tier 3

Baker McKenzie
7 practice areas
View profile
Prager Dreifuss
9 practice areas
View full profile
VISCHER
7 practice areas
View full profile

Tier 4

CMS von Erlach Partners
7 practice areas
View full profile
MLL Legal
8 practice areas
View full profile
Pestalozzi
8 practice areas
View full profile
Wenger Vieli
10 practice areas
View full profile

Notable

Bratschi
6 practice areas
View full profile
Goldblum and Partners
5 practice areas
View full profile
Holenstein Brusa
1 practice area
View profile
Loyens & Loeff
8 practice areas
View full profile
Staiger Schwald & Partner
6 practice areas
View profile
Transliq
1 practice area
View profile
Linked Reviews
Financial and corporate

The Swiss firm Walder Wyss boasts six locations across the country in Basel, Berne, Geneva, Lausanne, Lugano and Zurich. The firm focuses its specialism in corporate and commercial law, banking and finance, competition law and intellectual property. The firm is known for its active work in banking and finance, capital markets and the M&A sector.

 

Highlights

Walder Wyss played an active role as lead counsel to Credit Suisse on the UBS, assisting Credit Suisse in relation to all Swiss law aspects of the transaction. This deal is in connection with one of the largest and most significant acquisitions in the financial markets during 2023. This deal is reflective of the type of work the firm engages in on a consistent basis.

 

In debt capital markets, Walder Wyss also advised on a prominent UBS Switzerland AG in connection with a significant covered bonds issuance valued at CHF 20 billion. 

 

Testimonials

Extremely responsive, knowledgeable, patient. Careful, precise. Readily explained local formalities.”

Hands on work mentality, always punctual and try to find the best possible outcome for all sides.”

 

Key clients

UBS / Credit Suisse, Banque J. Safra Sarasin SA, Zürcher Kantonalbank, Citibank, Inflexion, PostFinance, KomGo SA, Cequr AG

24 results24 results
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Deal Highlights
52 results52 results
Deal Name Deal Date Firm Name Jurisdiction Deal Type Lawyer Names Client Names Client Role
ING Bank - Financing
2021-02-25
Walder Wyss
Switzerland
Financing
Hubertus Hillerström
ING Bank
Lender
Koninklijke DSM NV - M&A
2022-05-31
Walder Wyss
Switzerland
M&A
Koninklijke DSM NV
Buyer
Elvaston Capital Management GmbH - M&A
2022-07-27
Walder Wyss
Switzerland
M&A
Elvaston Capital Management GmbH
Seller
Cinerius Financial Partners AG - M&A
2023-02-01
Walder Wyss
Switzerland
M&A
Alex Nikitine, Amina Chammah, Dario Galli, Janine Corti, Michael Kundig, Michael Schmassmann, Thomas Nagel, Valentina Eichin
Cinerius Financial Partners AG
Buyer
Boston Consulting Group Inc. - M&A
2022-09-15
Walder Wyss
Switzerland
M&A
Boston Consulting Group Inc.
Buyer
EnBiotix Inc - M&A
2021-12-30
Walder Wyss
Switzerland
M&A
Alexander Gutmans
EnBiotix Inc
Acquirer
SHL Telemedicine Ltd - Secondary share offering
2021-01-02
Walder Wyss
Switzerland
Secondary share offering
Daniel Dedeyan
SHL Telemedicine Ltd
Issuer
Boehringer Ingelheim R&D - M&A
2021-01-20
Walder Wyss
Switzerland
M&A
Alexander Gutmans, Robert von Rosen
Boehringer Ingelheim R&D
Acquirer
Constellium - Bond issue
2021-09-02
Walder Wyss
Switzerland
Bond issue
Lukas Wyss, Johannes Bürgi
Constellium
Issuer
Swiss Life AG - Bond issue
2021-01-03
Walder Wyss
Switzerland
Bond issue
Markus Pfenninger
Swiss Life AG
Issuer
UBS Switzerland AG - Asset finance
2022-07-03
Walder Wyss
Switzerland
Asset finance
Lukas Wyss
UBS Switzerland AG
Agent
KLAR Partners Limited - M&A
2021-01-04
Walder Wyss
Switzerland
M&A
Alex Nikitine, Dominik Aerni, Christian A. Schmid
KLAR Partners Limited
Acquirer
Glarner Kantonalbank - Bond issue
2021-06-29
Walder Wyss
Switzerland
Bond issue
Lukas Wyss
Glarner Kantonalbank
Issuer
J. Safra Sarasin Group - Financing
2021-01-11
Walder Wyss
Switzerland
Financing
Patrick Vogel
J. Safra Sarasin Group
Borrower
Electromag SA - M&A
2021-02-07
Walder Wyss
Switzerland
M&A
Alexandre Both
Electromag SA
Seller
Infoniqa - M&A
2021-01-11
Walder Wyss
Switzerland
M&A
Alex Nikitine
Infoniqa
Acquirer
Scanmarket A/S - M&A
2021-01-11
Walder Wyss
Switzerland
M&A
Alex Nikitine
Scanmarket A/S
Acquirer
Swiss Life Holding - Bond issue
2021-01-09
Walder Wyss
Switzerland
Bond issue
Markus Pfenninger
Swiss Life Holding
Issuer
Naxicap Partners S.A. - Financing
2022-06-22
Walder Wyss
Switzerland
Financing
Lukas Wyss
Naxicap Partners S.A.
Borrower
Sulzer Ltd; Medmix Ltd - IPO
2021-01-10
Walder Wyss
Switzerland
IPO
Urs Schenker, Theodor Härtsch
Sulzer Ltd, Medmix Ltd
Issuer
2
of
3
All the winning deals, teams, individuals and firms were revealed at IFLR’s ceremony in London on April 4
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