Wenger Plattner > Zurich, Switzerland > Firm Profile

Wenger Plattner

Switzerland > Insolvency and corporate recovery Tier 1

Wenger Plattner is experienced with handling insolvency and restructuring cases from both sides, namely acting as administrator or bankruptcy trustee in complex cross-border cases and advising debtors or creditors in other cases, within various industry sectors such as pharma, real estate and construction, energy, banking and finance, and technology. Practice head Brigitte Umbach-Spahn advises clients in domestic and cross-border restructuring and insolvency cases and represents them in related proceedings. Fritz Rothenbühler  handles insolvency and restructuring matters within the corporate, competition law, construction and real estate sectors. Karl Wüthrich advises creditors on national and international enforcement law and assisted debtors in formulating and implementing reorganisation and restructuring plans. Litigation specialist Stephan Kesselbach represents national and international clients before the administrative authorities, focusing mainly on corporate and insolvency law matters. Pablo Duc handles major bankruptcies and composition proceedings whilst Stefan Bossart primarily advises foreign clients on insolvency matters. Roland Burkhalter, who rejoined the team in 2022 from St Galler Kantonalbank, handles complex restructuring and insolvency assignments as well as extensive investigations and audits for the Swiss Financial Market Supervisory Authority (FINMA). Denise Jagmetti-Huser and Mathias Burghardt support the team.

Practice head(s):


‘Wenger Plattner is the No. 1 restructuring and insolvency team in Switzerland. Very high expertise, especially in cross-border restructuring cases.’

‘The most experienced team in relation to mandates as administrators in a composition agreement.’

‘Wenger Plattner are market leading Swiss insolvency and restructuring lawyers. They are subject matter experts on Swiss insolvency and also cross-border insolvency issues.’

‘Brigitte Umbach-Spahn is a first-class partner. Stefan Bossart is an excellent senior associate.’

‘They are a great team.’

‘Brigitte Umbach-Spahn is a very experienced insolvency specialist. She is our go-to person for complex matters requiring a high level of expertise and sophistication.’

‘Very responsive with a focus on solutions and a very high reputation in the Swiss legal market.’

‘Brigitte Umbach-Spahn, Denise Jagmetti-Huser and Stefan Bossart are very proficient, highly esteemed in the market and great to work with.’

Key clients

Bank Hottinger & Cie AG

SMTV Group (SMTV Holding AG, AF Cars AG, AF Racing Switzerland)

Nyco Flexible Packaging GmbH

Publicitas AG in bankruptcy liquidation



Swissair Group

SkyWork Airlines AG

Swiss Dairy Food AG

Unifina Holding AG

mopac modern packaging AG / 2MP AG

The Enzian Shipping / Swiss Chem Tankers Group

Swissmetal Industries AG / Weidenareal Metall AG

SCL / SCT // Enzian Shipping AG / Swiss Chem Tankers AG

saltech AG

Gysi AG Chocolatier Suisse

SCL Helvetia AG

Work highlights

  • Serving as FINMA appointed liquidators of Bank Hottinger & Cie AG.
  • Appointed as administrators for Nyco Flexible Packaging GmbH.
  • Confirmed liquidators of Petroplus Marketing AG and appointed administrator, later on liquidator of Petroplus Refining Cressier SA in a liquidation with claims in the amount of approx. CHF 6 billion.

Switzerland > Banking and finance: Zurich Tier 3

Wenger Plattner advises banks, asset managers, and securities dealers on regulatory issues and acts on their behalf in dealings with Swiss regulatory bodies and self-regulatory organisations, such as FINMA and SIX Swiss Exchange. The team also assists clients with the setting up of investment funds, drafting agreements, licenses and permits, and financing transactions. Practice head Filippo Th. Beck regularly advises entrepreneurs, companies and individuals on contract law, asset structuring, and compliance as well as acting as an investigating agent for banks and financial institutions. Oliver Künzler has expertise in private equity and venture capital transactions and financings.

Practice head(s):

Key clients

Energix Renewables


TC Loans Limited



Vienna International Hotel Management AG

Health Care Royalty Partners


HRG Hotels GmbH

Novocure Ltd., Jersey

ING Belgium SA

SIGNA Holding/International Sports Holding

Has Bois Sage SA

Work highlights

  • Swiss counsel to Novocure Ltd. regarding the renewal of a USD 150 million credit facility in pharma industry.
  • Advised Has Bois Sage SA, a company incorporated under Belgian law, in connection with a EUR 95 million financing of the acquisition of real estate in Belgium.

Switzerland > Commercial, corporate and M&A Tier 3

Oliver Künzler leads Wenger Plattner‘s corporate and commercial department, which is capable of implementing M&A transactions under the Swiss Merger Act, as well as possessing considerable knowledge of Swiss-related asset and M&A transactions. Marc S Nater principally advises clients on public and private M&A, private equity and commercial law, while Benjamin Dürig bolsters the practice with his thorough knowledge of M&A and corporate finance transactions.

Practice head(s):


‘Oliver Künzler’s long experience in combination with his negotiation and language skills – Oliver is fluent in German, English and French – make him a very talented legal advisor on international transactions.’

‘I value Oliver Künzler’s pragmatism and business focus.’

‘They are very professional and solution oriented.’

‘Oliver Künzler is a great lawyer, very knowledgeable on M&A matters and always available.’

Key clients



EMERAM Capital

TRITON Partners

VI Partners

Stadler Rail Group

Sostrene Grene


Audi AG

Novartis Pharma Ltd.

Julius Baer Group


Sun Hung Kai & Co. Limited

Meta Investments


Great Point Partners


OMNES Capital

Normet Group OY

TX Group AG

SWICA Gesundheitsorganisation

HRG Hotels GmbH

Rivean Capital (formerly Gilde Buy-Out Partners)

CIBT, Inc.


HG Commerciale

ADUR Management AG

SBI Holdings

Capital Transmission SA

Magazine zum Globus AG

Tonix Pharmaceuticals Inc.

Align Technology, Inc.

Hospitality Swiss Proco AG

GA Europe GmbH

Saurer Group

Brütsch/Rüegger Gruppe

1337 Holding AG

Neovii Pharmaceutical AG

Artisa Digital AG

Apecx Swiss AG

Work highlights

  • Advised AUDI AG as lead counsel with respect to its entry into Formula 1 as power unit supplier, as well as the takeover of 75% of the shares in an existing Formula 1 team.
  • Acted as lead counsel to US-listed group Bio-Techne on the acquisition of Lunaphore Technologies AG.
  • Advised WSD, a structured products software provider, on all the Swiss legal aspects regarding the acquisition of Solvians.

Switzerland > Employment Tier 3

The employment team at Wenger Plattner has a special focus on dispute resolution for high-profile companies and individuals, including entrepreneurs and senior management staff. The team is particularly strong in bonus disputes, employment termination litigation, and litigation relating to non-competition clauses including interim relied proceedings and arbitration. The practice is headed by Roland Bachmann, who has extensive experience litigating on separation agreements and complex bonus plans and advising clients on all issues relating to employment law. The team is supported by IP expert Damian Schai and commercial dispute specialist Yannick Hostettler.

Practice head(s):

Key clients

Audi AG / Sauber Motorsports

Work highlights

  • Drafted and negotiated the pre-employment agreement between Audi / Sauber Motorsports and the future Chief Executive Officer for the Formula 1 Business of the Sauber Group in Switzerland.
  • Supported Nyco Flexible Packaging GmbH with all employee-related matters in the course of the restructuring proceedings.

Switzerland > Healthcare and life sciences Tier 3

The team at Wenger Plattner acts for its varied client roster of hospitals, insurance companies, and healthcare organisations. In Basel, practice head Tobias Meili is noted for his broad knowledge of M&A, corporate governance issues, and banking and finance matters, and Carlo Conti regularly assists clients with mandates involving healthcare, governmental, and administrative law. Zurich’s Oliver Künzler handles a range of cross-border M&A, and restructurings.

Practice head(s):


‘Very knowledgeable people. Very good network into the business.’

Key clients

Mathys AG Bettlach


Labor Team w


Zurzach Care AG

Schweizerische Diabetes-Stiftung

Casavita Stiftung

Medgate AG

Universitätsspital Zürich

Bachem AG

Sana Kliniken AG

Sana Suisse Med AG

Swiss Medical Network Hospitals SA

GSMN Suisse SA

Work highlights

  • Assisted Bachem AG with negotiating several strategic collaborations with global pharmaceutical companies for the development and manufacture of oligonucleotide- or peptide-based APIs for new pharmaceutical products.
  • Acted for Bio-Techne in the acquisition of Lunaphore Technologies AG.
  • Assisted Sana Kliniken AG in launching the group’s operations in Switzerland.

Switzerland > Real estate and construction Tier 3

Wenger Plattner’s full-service practice is active in the whole life cycle of real estate property, from development and permit disputes to the sale or lease of the property. Placidus Plattner heads the team and has extensive expertise in representing investors and developers as well as entrepreneurs, landlords, and tenants in both public and private proceedings. Beat Stalder’s focus is on advising clients on planning, construction, and business administration matters. Other key team members include Gaudenz Schwitter, Thomas Wetzel, and Fritz Rothenbühler.

Practice head(s):

Key clients

Energie 360° AG

Immobilien ETHZF AG

Brandenberger + Ruosch AG

IST Investmentstiftung

The Swiss Federal Pension Fund PUBLICA

Genossenschaft Migros Aare

Terresta Immobilien und Verwaltungs AG

Stiftung Innovationspark Zürich

Switzerland > Dispute resolution: litigation Tier 4

Counting corporations, public law entities and private clients in its varied client roster, ‘excellent’ Wenger Plattner fields a wide-ranging litigation practice, advising on liability, banking and inheritance law disputes to name a few. The team operates across its Zurich and Basel offices, the latter of which being notable experienced in pharma industry mandates. Zurich-based team leader Stephan Kesselbach principally focuses on corporate, contract and insolvency law litigation. Other key names to note include Zurich-based Roland Bachmann, as well as Dieter Gränicher and Yannick Hostettler, who operate in the firm’s Basel office.

Practice head(s):


‘Very fast response times, high reliability and customer friendliness.’

‘Very high legal competence. Roland Bachmann was also able to empathise very well with my particular situation and at all times found the right mix of representing my legitimate interests and providing honest feedback in the event of excessive expectations on my part.’

‘Stephan Kesselbach and his team not only go the extra mile – they run it!’

‘They are an excellent team of very client focused lawyers.’

‘Wenger Plattner has a a unique team of specialists for any problem I had. They have extensive knowledge and do never give fluffy recommendations. They always dig deep and based on outstanding experience of their lawyers give solution oriented legal guidance.’

‘Roland Bachmann is a calm but very clever advisor that guides the way to solving complex insurance matters and claims.’

‘Meetings could always be held on short notice and online, generating short processing times.’

‘The cooperation with Yannick Hostettler is always reliable, courteous and of high quality. He knows how to advise clients pragmatically and to the highest legal standards. ’

Key clients

Publicitas AG


Petroplus Group

Former Swissmetal Group

Banque Hottinger & Cie Ltd

EBT swiss engineering Ltd.

Bosniaken Institut; Stiftung Adil Zulfikarpasic, Zurich

Bringhen Group

Work highlights

  • Assisting with corporate liability claims for mismanagement against the former president of the board of directors and the Auditing Company of the SPVs of the former SCL / SCT / Enzian Shipping AG.
  • Advising on liability claims for mismanagement against four former executives/members of the board of Banque Hottinger & Cie Ltd.
  • Defending the schedule of claims of Swissair against an action of the estate of former Belgian Airline Sabena.

Switzerland > Private client Tier 4

In addition to offering comprehensive tax advice, Wenger Plattner also has extensive experience drafting deeds of inheritance, wills, and estate distributions. Filippo Th. Beck is at the forefront of the private client practice, and focusses on law relating to banking and financial markets. Praised as ‘a very knowledgeable and experienced professional’, Roland Bachmann is recommended for matters relating to employment law and work permits.

Practice head(s):

Other key lawyers:


‘Roland Bachmann is a very knowledgeable and experienced professional. He’s a great listener and always available for discussions. His conflict management and negotiation skills are outstanding.’

‘Wenger Plattner is good at assisting clients with the administration of estates in Switzerland, especially when there is a cross-border element involved.’

‘Daniel Gabrieli is very approachable. He has an excellent knowledge of private client matters, which include cross-border estates, and he works efficiently regarding the administration of the estate.’

‘Daniel Garbieli is very impressive. He provides swift and very pragmatic solutions for clients, which results in excellent solutions for with limited expenses.’

‘Daniel Gabrieli is a versatile private client partner. He is very responsive and entirely on top of his matters.’

Key clients

Bosniaken Institut; Stiftung Adil Zulfikarpasic

Work highlights

  • Represented Bosniaken Institut, Stiftung Adil Zulfikarpasic in a CHF 15 million inheritance dispute over the inheritance of the late Adil Zulfikarpasic, a Bosnian politician.

Switzerland > Tax Tier 4

Areas of tax law covered by Wenger Plattner‘s expanding team include M&A tax, corporate tax, international tax, lump sum taxation, and VAT, with the group experienced in acting on behalf of both individuals and businesses. Team lead Markus Mühlemann covers a broad range of matters, including those involving complex and international elements. The team is supported by Oliver Künzler, who has expertise in financing tax, and Christian Martin Gutekunst, who advises clients on national and international tax including VAT.

Practice head(s):


‘Wenger Plattner’s tax practice distinguishes itself through a harmonious fusion of both generalised and specialist tax expertise within a single team, a quality that is indeed rare in the industry.’

‘Potential clients would be pleased to know that the team offers a tailored service, meticulously customising tax strategies from inception to fruition. The advisers are not just knowledgeable; they are plugged into a network across different locales, thus promising solutions that are optimal at both local and global levels.’

‘The practice has pioneered a commercial, solution-oriented approach, emphasising a seamless collaboration across different disciplines within Wenger Plattner.’

‘In terms of innovation, the practice stands tall, embracing modern technology to optimise existing structures continually, a strategy that ensures clients are always a step ahead in the ever-evolving tax landscape.’

‘Wenger Plattner offers a tax practice that is steeped in expertise, innovation, and a deep understanding of both the local and global tax landscapes.’

‘Working with Christian Martin Gutekunst on a recent tax case was an absolute privilege and underscored why he stands a cut above the rest in the competitive landscape.’

One of the standout qualities of Christian is his remarkable competence, which was clearly manifested as we navigated the complex landscape of a tax case. What impressed me deeply was his expertise in carving out a strategy that not only adhered to the stringent regulatory landscape but did so while ensuring maximum financial efficacy.’

‘Christian’s prowess in negotiating with tax authorities played a pivotal role in the successful outcome of our case. His tact, combined with an astute understanding of tax proceedings and rulings, was undeniably a strong asset, casting him as a formidable force when it comes to advocacy and negotiations.’

Key clients

SIGNA Retail Group

VirtusLab Group

Globus AG

Work highlights

  • Advised VirtusLab Group and various subsidiaries (Polish, German) especially with regard to tax and transfer pricing law.

Switzerland > Intellectual property

Wenger Plattner’s unique specialism in the intellectual property aspects of the arts gives the firm a distinct and particular expertise; the team has further experience in the publishing, healthcare, and food-and-drink industries.

For over 30 years, Wenger Plattner has been advising and representing clients in all aspects of business law. Wenger Plattner has offices in Basel, Zurich and Bern as well as a representative office in Geneva.

We identify practical, workable solutions and help clients implement these to achieve the best possible commercial outcomes. We rely on teams of experts, many of whom are involved in decision-making as members of public authorities and other bodies, giving them an in-depth understanding of client needs.

As a fully integrated partnership, we place a strong emphasis on teamwork and cooperation. You will have access to dedicated, highly experienced specialists who will help you meet your specific objectives efficiently and effectively, delivering the highest standards of quality.

Department Name Email Telephone
Banking and finance Filippo Beck filippo.beck@wenger-plattner.ch +41 43 222 38 00
Banking and finance Dr Marc Nater marc.nater@wenger-plattner.ch +41 43 222 38 00
Contract and commercial Dr Oliver Künzler oliver.kuenzler@wenger-plattner.ch +41 43 222 38 00
Contract and commercial Dr Marc Nater marc.nater@wenger-plattner.ch +41 43 222 38 00
Corporate and M&A Dr Oliver Künzler oliver.kuenzler@wenger-plattner.ch +41 43 222 38 00
Corporate and M&A Dr Marc Nater marc.nater@wenger-plattner.ch +41 43 222 38 00
Corporate and M&A Suzanne Eckert suzanne.eckert@wenger-plattner.ch +41 43 222 38 00
Insolvency law and restructuring Brigitte Umbach-Spahn brigitte.umbach@wenger-plattner.ch +41 43 222 38 00
Insolvency law and restructuring Karl Wüthrich karl.wuethrich@wenger-plattner.ch +41 43 222 38 00
Insolvency law and restructuring Dr Stephan Kesselbach stephan.kesselbach@wenger-plattner.ch +41 43 222 38 00
Insolvency law and restructuring Stefan Bossart stefan.bossart@wenger-plattner.ch +41 43 222 38 00
Intellectual property and technology (ICT) Dr Martina Braun martina.braun@wenger-plattner.ch +41 43 222 38 00
Labour law and immigration Filippo Beck filippo.beck@wenger-plattner.ch +41 43 222 38 00
Labour law and immigration Cristina Solo de Zaldivar cristina.solo@wenger-plattner.ch +41 43 222 38 00
Legal assistance in civil and criminal matters Filippo Beck filippo.beck@wenger-plattner.ch +41 43 222 38 00
Legal assistance in civil and criminal matters Dr Stephan Kesselbach stephan.kesselbach@wenger-plattner.ch +41 43 222 38 00
Litigation and arbitration Dr Stephan Kesselbach stephan.kesselbach@wenger-plattner.ch +41 43 222 38 00
Litigation and arbitration Brigitte Umbach-Spahn brigitte.umbach@wenger-plattner.ch +41 43 222 38 00
Real estate and constructing Dr Thomas Wetzel thomas.wetzel@wenger-plattner.ch +41 43 222 38 00
Real estate and constructing Placidus Plattner placidus.plattner@wenger-plattner.ch +41 43 222 38 00
Real estate and constructing Dr Gaudenz Schwitter gaudenz.schwitter@wenger-plattner.ch +41 43 222 38 00
Real estate and constructing Nicole Tschirky nicole.tschirky@wenger-plattner.ch +41 43 222 38 00
Sports law Dr Marc Nater marc.nater@wenger-plattner.ch +41 43 222 38 00
Sports law Filippo Beck filippo.beck@wenger-plattner.ch +41 43 222 38 00
Tax Dr Oliver Künzler oliver.kuenzler@wenger-plattner.ch +41 43 222 38 00
Litigation and arbitration Dr Roland Bachmann roland.bachmann@wenger-plattner.ch +41 43 222 38 00
Real estate and constructing Sarah Hilber sarah.hilber@wenger-plattner.ch +41 43 222 38 00
Photo Name Position Profile
Roland Bachmann photo Dr Roland Bachmann Roland Bachmann is specialised in commercial litigation, with a focus on insurance…
Filippo Th. Beck photo Filippo Th. Beck Filippo Th. Beck is a partner in the Private Clients business group…
Valérie  Berger photo Valérie Berger Valérie Berger is an associate in the Corporate and M&A team. She…
Simon Böhi photo Dr Simon Böhi Simon Böhi is a senior associate on the Real Estate team. He…
Stefan Bossart photo Stefan Bossart Stefan Bossart is a Counsel on the Insolvency and Restructuring team. He…
Martina Braun photo Dr Martina Braun Martina Braun is a Counsel and a member of the IP and…
Mathias Burghardt photo Mathias Burghardt Mathias Burghardt is a Senior Associate on the Insolvency and Restructuring team.…
Roland Burkhalter photo Dr Roland Burkhalter Roland Burkhalter is a Counsel on the Insolvency and Restructuring team as…
Benjamin Dürig photo Benjamin Dürig Benjamin Dürig is an experienced transaction lawyer with a focus on M&A…
Suzanne Eckert photo Suzanne Eckert Suzanne Eckert is a Counsel on the Corporate and Commercial team. She…
Florian Fleischmann photo Dr Florian Fleischmann Florian Fleischmann is an associate on the Real Estate team. He provides…
Daniel Gabrieli photo Daniel Gabrieli Daniel Gabrieli is a partner in the Private Clients business group. He…
Christian Martin Gutekunst photo Christian Martin Gutekunst Christian Martin Gutekunst is an Attorney at Law and a Certified Tax…
Sarah Hilber photo Sarah Hilber Sarah Hilber is a counsel on the Real Estate and Insolvency and…
Denise Jagmetti-Huser photo Dr Denise Jagmetti-Huser Denise Jagmetti-Huser is a Senior Associate on the Insolvency and Restructuring team.…
Nils Kern photo Nils Kern Nils Kern is an Associate in our Private Clients and Tax practice…
Stephan Kesselbach photo Dr Stephan Kesselbach Stephan Kesselbach is a partner in the Litigation and Arbitration business group.…
Oliver Künzler photo Dr Oliver Künzler Oliver Künzler is a partner in the Business Group Corporate and Commercial.…
Markus Mühlemann photo Markus Mühlemann Markus Mühlemann is a Swiss certified tax expert and a partner in…
Marc Nater photo Dr Marc Nater Marc Nater is a partner in the Corporate and Commercial business group.…
Linda Novina photo Linda Novina Linda Novina is an associate in the Insolvency and Restructuring team. She provides…
Carsten Otto photo Carsten Otto Carsten Otto works as an attorney at law primarily in the business…
Placidus Plattner photo Placidus Plattner Placidus Plattner is a partner on the Real Estate team. He advises investors,…
Urs Reinwald photo Urs Reinwald Urs Reinwald specializes in mergers and acquisitions and other corporate transactions, such…
Michael A. Schifferli photo Michael A. Schifferli Michael Schifferli works as a Senior Associate mainly in the Arbitration &…
Gaudenz Schwitter photo Dr Gaudenz Schwitter Gaudenz Schwitter is a partner on the Real Estate team. He advises clients on the…
Cristina Solo de Zaldivar photo Cristina Solo de Zaldivar Cristina Solo de Zaldívar is a Counsel and member of the Employment Law team.…
Nicole Tschirky photo Nicole Tschirky Nicole Tschirky is a senior associate on the Real Estate team. She advises institutional…
Brigitte Umbach-Spahn photo Brigitte Umbach-Spahn Brigitte Umbach-Spahn is a partner on the Insolvency and Restructuring team. She advises…
Thomas Wetzel photo Dr Thomas Wetzel Thomas Wetzel, a Certified Specialist SBA in real estate law, is a counsel of…
Karl Wüthrich photo Karl Wüthrich Karl Wüthrich is a counsel on the Insolvency and Restructuring team. For more than…
Number of lawyers : 60
at this office : 37
Schweizer Anwaltsverband (SAV)
Zürcher Anwaltsverband (ZAV)
International Bar Association (IBA)
Other offices : Basel
Other offices : Bern