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Key contacts
Partner: Dr. Oliver Künzler
Partner: Dr. Tobias Meili
Quick facts
Number of lawyers

60

Languages

English, German, French, Italian, Aramaic, Albanian, Hebrew, Hungarian, Spanish

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

Wenger Plattner has been advising and representing clients in all areas of business law for over 40 years. With more than 100 employees at three locations: Basel, Zurich, and Bern.

Wenger Plattner is a fully integrated partnership. Your concerns are handled with high quality and efficiency by the expert who has the necessary expertise and experience for the case. We develop easily implementable solution concepts for you and support you in pursuing these concepts with optimal economic results.

Key practice contacts

Mergers & Acquisitions:
Dr. Oliver Künzler
oliver.kuenzler@wenger-plattner.ch

Restructuring and insolvency
Brigitte Umbach-Spahn
brigitte.umbach@wenger-plattner.ch

Key transactional practices
  • Competition

  • Financial services regulatory
  • M&A
  • Private equity
  • Private equity funds
  • Real estate finance
  • Real estate funds
  • Restructuring and insolvency
Sector expertise
  • Agriculture
  • Automotive
  • Banking
  • Construction and materials
  • Food and beverage
  • Government and public policy
  • Healthcare
  • Industrials
  • Insurance
  • Pharm and life sciences
  • Real estate
  • Tourism
Other offices

Wenger Plattner
Attorneys at Law, Tax Advisors and Public Notaries 
Aeschenvorstadt 55
4010 Basel
T +41 61 279 70 00
basel@wenger-plattner.ch
 
Wenger Plattner
Attorneys at Law, Tax Advisors and Public Notaries
Jungfraustrasse 1
3000 Berne 6
T +41 31 357 00 00
bern@wenger-plattner.ch 

Address:
Seestrasse 39
CH-8700 Kusnacht
Tel:+41 43 222 38 00 Email:Contact Us Web Address:http://www.wenger-plattner.ch
Rankings published in 2026
Banking and finance
Tier 4
22 firms ranked
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Tier 1

Bär & Karrer
7 practice areas
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Homburger
8 practice areas
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Lenz & Staehelin
9 practice areas
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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
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Loyens & Loeff
8 practice areas
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MLL Legal
8 practice areas
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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
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Prager Dreifuss
9 practice areas
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Wenger Plattner
8 practice areas
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Wenger Vieli
10 practice areas
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burckhardt Ltd
4 practice areas
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Notable

Buis Bürgi
2 practice areas
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Oberson Abels
4 practice areas
View profile
Financial services regulatory
Tier 3
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
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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
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Wenger Vieli
10 practice areas
View full profile

Notable

373 Avocats & Associés
1 practice area
View profile
Advestra
7 practice areas
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Nobel & Partner
1 practice area
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M&A
Tier 4
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
View full profile

Notable

BMG Avocats
2 practice areas
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Barandun
3 practice areas
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Eversheds Sutherland
1 practice area
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Goldblum and Partners
5 practice areas
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Kasser Schlosser Avocats
1 practice area
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valfor Rechtsanwälte
8 practice areas
View profile
Restructuring and insolvency
Tier 1
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

Wenger Plattner is an established Swiss law firm active in M&A and restructuring transactional work, as well as in advisory roles. The firm counsels on both international and domestic from its four offices in Basel, Berne, Geneva and Zurich Despite the firm being independent, it has a wide ranging international network with law firms.

 

Highlights

Deal highlights include advising the Swiss Financial Market Supervisory Authority (FINMA) as liquidators of Bank Hottinger & Cie AG since 2015. In 2023, the transaction was successfully executed in relation to the overall settlement for Bank Hottinger.

Wenger Plattner also played an important role advising as Swiss counsel for Novocure Ltd. In connection with the update of its $150 million credit facility the pharma industry.

Testimonials 2025

“They are highly competent, very experienced as administrators, including in larger restructuring cases, well organized, forward-thinking, and possess strong economic understanding. This enables them to be open to legally sound yet pragmatic solutions, and they work in a very solution-oriented manner.” - Insolvency  

Key Clients

ING Belgium SA, Novocure Ltd., Jersey, CENTRUM Group. Health Care Royalty Partners, EnBW, Audi AG, Novartis Pharma Ltd., Bank Hottinger & Cie AG, Publicitas AG in bankruptcy liquidation, Swissair Group, The Enzian Shipping / Swiss Chem Tankers Group, Petroplus

9 results9 results
Deal Highlights
29 results29 results
Deal Name Deal Date Firm Name Jurisdiction Deal Type Lawyer Names Client Names Client Role
Novocure - Financing
2020-01-09
Wenger Plattner
Switzerland
Financing
Dr Marc Nater
Novocure
Borrower
HRG Hotels - Asset finance
2020-03-01
Wenger Plattner
Switzerland
Asset finance
Dr Oliver Künzler
HRG Hotels
Borrower
Saltech - Restructuring
2020-08-01
Wenger Plattner
Switzerland
Restructuring
Dr Fritz Rothenbühler
Saltech
Insolvent entity
Gysi AG Chocolatier Suisse - Restructuring
2020-10-01
Wenger Plattner
Switzerland
Restructuring
Dr Fritz Rothenbühler
Gysi AG Chocolatier Suisse
Insolvent entity
Mopac modern packaging - Insolvency
2021-02-25
Wenger Plattner
Switzerland
Insolvency
Dr Fritz Rothenbühler
Mopac modern packaging
Insolvent entity
Publicitas - Insolvency
2021-02-25
Wenger Plattner
Switzerland
Insolvency
Brigitte Umbach-Spahn
Publicitas
Insolvent entity
Bank Hottinger & Cie - Insolvency
2021-02-25
Wenger Plattner
Switzerland
Insolvency
Brigitte Umbach-Spahn
Bank Hottinger & Cie
Liquidator
The Enzian Shipping; Swiss Chem Tankers Group - Insolvency
2021-02-25
Wenger Plattner
Switzerland
Insolvency
Dr Fritz Rothenbühler
The Enzian Shipping, Swiss Chem Tankers Group
Liquidator
Swissmetal Industries - Insolvency
2021-02-25
Wenger Plattner
Switzerland
Insolvency
Dr Fritz Rothenbühler
Swissmetal Industries
Liquidator
Petroplus Marketing - Insolvency
2021-02-25
Wenger Plattner
Switzerland
Insolvency
Brigitte Umbach-Spahn
Petroplus Marketing
Liquidator
Envion - Restructuring
2021-02-25
Wenger Plattner
Switzerland
Restructuring
Pablo Duc
Envion
Insolvent entity
1337 Holding AG - Joint venture
2021-01-09
Wenger Plattner
Switzerland
Joint venture
Marc Nater
1337 Holding AG
Joint venture partner
Align Technologies Inc - M&A
2021-01-08
Wenger Plattner
Switzerland
M&A
Oliver Künzler
Align Technologies Inc
Merger party
Capital Transmission SA - M&A
2021-01-08
Wenger Plattner
Switzerland
M&A
Oliver Künzler
Capital Transmission SA
Acquirer
CIBT Inc - M&A
2021-01-02
Wenger Plattner
Switzerland
M&A
Oliver Künzler
CIBT Inc
Acquirer
envion AG - Insolvency
2022-02-24
Wenger Plattner
Switzerland
Insolvency
Fritz Rothenbühle, Pablo Duc
envion AG
Agent
GA Europe GmbH - M&A
2021-01-07
Wenger Plattner
Switzerland
M&A
Oliver Künzler, Tobias Meili
GA Europe GmbH
Acquirer
Healthcare Royalty Management LLC - M&A
2022-02-24
Wenger Plattner
Switzerland
M&A
Oliver Künzler
Healthcare Royalty Management LLC
Acquirer
HG Commerciale - M&A
2021-01-07
Wenger Plattner
Switzerland
M&A
Oliver Künzler
HG Commerciale
Merger party
Hottinger & Cie AG - Insolvency
2022-02-24
Wenger Plattner
Switzerland
Insolvency
Brigitte Umbach-Spahn
Hottinger & Cie AG
Insolvent entity
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