Walder Wyss Ltd. > Basel, Switzerland > Firm Profile

Walder Wyss Ltd.
PO Box 633
4010 BASEL

Switzerland > Capital markets Tier 1

The team at Walder Wyss Ltd. covers a wide range of capital market matters, such as initial public offerings, private investments in public enterprises (PIPEs), and high-yield or mezzanine financings. Convertible bond issues, derivative instruments and new hybrid security or debt restructurings are also handled. In close collaboration across practice groups, the members regularly act for national and international issuers, syndicate banks, and shareholders. Practice head Theodor Härtsch is further well versed in corporate and capital markets compliance matters, while Lukas Wyss also covers regulatory securities. Alexander Nikitine has know-how in DCM and ECM offerings.

Practice head(s):


‘Accessibility and know-how.’

Key clients

UBS AG and Credit Suisse AG

Valiant Bank AG

UBS AG and Credit Suisse Ltd

Baloise Holding AG

Basler Kantonalbank

Ford Motor Credit Company LLC

Swiss Life Holding Ltd.

Swiss Life AG


Montana Aerospace AG

CRISPR Therapeutics AG

AMAG Leasing

Swisscard AECS GmbH

Cembra Money Bank AG

Credit Suisse – Emil Frey


Work highlights

  • Advising UBS AG, Credit Suisse Ltd and ING Bank as lenders under a mezzanine facility agreement granted to the Singapore based shareholder of gategroup Holding AG in relation to the restructuring of the financial debt and the recapitalization of gategroup Holding AG’s shareholder as well as gategroup Holding AG itself.
  • Advising Valiant Bank AG on a further issuance under its CHF5bn covered bond program.
  • Acted as counsel to the underwriters UBS AG and Credit Suisse Ltd on the rights offering of Swiss Steel Holding AG.

Switzerland > Competition Tier 1

Walder Wyss Ltd. fields a team of ‘highly reliable and motivated people.’ It has a notably strong track record in merger control proceedings across a wide range of sectors, but also covers dominant position cases and dawn raids. Reto Jacobs also has experience in representing companies before competition authorities and courts, as well as in matters involving distribution systems. He leads the practice jointly with Monique Sturny who is well versed in the healthcare, consumer and luxury goods, and digital economy sectors. Counsel Gion Giger also covers commercial and contract law.

Practice head(s):


‘Professional and skilled, very specialised lawyers with large teams interacting perfectly to solve complex legal problems appropriately.’

‘Monique Sturny is a qualified and renowned specialist in affairs of antitrust laws and supervisory authority for banking and health insurances (FINMA). She is very dedicated to her work, quick in analysing problems and formulating legally sound answers. She is very easily accessible.’

‘Extremely high expertise in different fields of practice and smooth transition and exchange between the practice areas. A key asset to bring all knowledge in the firm to the table in order to give the highest standard of legal advice out of ‘one hand’ to the client.’

‘Fantastic team, very dedicated, headed by the experienced Reto Jacobs. Bright attorneys.’

‘Reto Jacobs knows how work is done.’

‘Gion Giger is excellent, and a real workhorse with full dedication.’

‘Highly reliable & motivated people.’

‘Monique Sturny: Highly skilled and experienced in supporting the application of antitrust consultation procedures.’

Key clients


Daimler AG and Volvo AB

Migros Group


TX Group (former Tamedia)



Schweizerische Bundesbahnen SBB (Swiss Federal Railway)

Saviva AG

ADVA Optical Networking

Work highlights

  • Represented Daimler AG and Volvo AB in the merger control proceedings related to a joint venture.
  • Represented ADVA Optical Networking SE in an investigation conducted by the Swiss Competition Commission (ComCo) into possible submission agreements in the field of optical networks.
  • Represented Dovista A/S, part of the Danish VKR Group, in the merger control proceedings related to the purchase of Arbonia’s Windows Division.

Switzerland > Data privacy and data protection Tier 1

Walder Wyss Ltd.‘s team ‘not only is very knowledgeable in Swiss data privacy law, but also has excellent knowledge of European and international developments in the field.‘ It is regularly instructed by corporations from a variety of industries in contentious and non-contentious data matters; including compliance with data protection laws, representing parties before data protection authorities, drafting data protection agreements, and assisting clients subject to specific confidentiality obligations. Practice head David Vasella is ‘extremely sharp and is always focused on finding pragmatic solutions.Jürg Schneider is well versed in global outsourcing projects and information security.

Practice head(s):

Other key lawyers:


‘Outstanding privacy expertise combined with the ability to deliver pragmatic and sound solutions for clients across all industries.’

‘David Vasella’s expertise in privacy is highly recognised across all industries. David is well known for helping clients solve complex privacy-related challenges in a pragmatic and sound manner.’

‘Very profound knowledge, yet very hands-on, clear statements and answers to ‘practical’ questions, directly applicable.’

‘Top law firm in data protection matters. Their efficient and responsive team always delivers high-quality work.’

‘David Vasella is the go-to lawyer for data protection matters in Switzerland. He has excellent people skills, is extremely sharp and is always focused on finding pragmatic solutions. We particularly appreciate his in-depth knowledge and understanding of data protection laws in other jurisdictions, most notably the GDPR.’

‘David Vasella is super knowledgeable, highly responsive and always fully solution-oriented. Rather than discouraging long evaluations leading to short memos requiring more questions to be solved thus never arriving at an end, we have short exchanges, quick answers with recommendations that we can implement and that work. This motivates us to work with Walder Wyss Ltd. repeatedly and leaves us as a very satisfied client.’

‘Jürg Schneider: great single point of contact, timely and pragmatic delivery, very knowledgeable.’

‘Walder Wyss has one of the largest and fastest-growing data privacy practices in Switzerland, covering all aspects of data privacy law. The team not only is very knowledgeable in Swiss data privacy law but also has excellent knowledge of European and international developments in the field. They are a pleasure to work with, both on a professional as on a personal level.’

Key clients








Credit Suisse








Kantar Media


LGT Capital Partners












Swiss Banker’s Association



TX Group

Valiant Bank


Zur Rose

Zurich Insurance

Zurich University

Work highlights

  • Advised santésuisse, an association of several health insurers, on outsourced health care provider performance analytics and audits including consultation with the Data Protection Authority.
  • Advised Emmi on their implementation of the GDPR and Swiss data protection regulation.
  • Advised Migros on Swiss data protection regulation/compliance.

Switzerland > Employment Tier 1

Walder Wyss Ltd. ‘is surely one of the best in Switzerland‘ when it comes to advice regarding all aspects of the employer-employee relationship, including employment contracts, international assignment of employees and transaction-related issues, in particular transfers of undertaking. The team is further adept at advising on internal investigations, plant closures as well as mass dismissals and assisting clients in any related negotiations and conflict resolution with individual employees, employee representatives and trade unions. Philippe Nordmann, who ‘stands out both professionally and as a coordinator‘, heads the practice together with Ueli Sommer, ‘a thoughtful lawyer with the best expertise and a lot of experience‘. Irène Suter-Sieber is noted for her ‘excellent knowledge of employment law‘. Rayan Houdrouge  joined the firm from Lenz & Staehelin .

Practice head(s):

Other key lawyers:


‘The firm clearly stands out in the area of professional organisation. Among other things, Walder Wyss is able to quickly deliver extremely competent, client-oriented and equally useful results from all legal disciplines up to tax law issues. The legal results as well as the billing can be described as excellent which means that the cost-benefit ratio can also be described as optimal in comparison to the competitors.’

‘The extremely goal-oriented commitment of Philippe Nordmann is striking. He always manages (even when he is on holiday) to come up with a very effective and equally effective response to all (even unexpected) legal questions. If it does not concern his personal paper, it is handed over to a colleague without any loss of time. Philipp Nordmann stands out both professionally and as a coordinator. The entire team at Walder Wyss is also worth mentioning.’

‘Ueli Sommer is a thoughtful lawyer with the best expertise and a lot of experience.’

‘Irene Suter-Sieber always responds within a short timeframe and I can 100% rely on that I receive the advice within the communicated timeframe. In addition, the advice contains the necessary depth in each case, but is not too detailed. I can highly recommend Irene Suter-Sieber as a reliable external partner for all employment matters.’

‘Not only are they true experts in their fields, they also work efficiently and client-oriented. It is important for us to work with outstanding legal advisors, so the collaboration with Walder Wyss seemed always like the right choice.’

‘Philippe Nordmann’s legal knowledge is outstanding. What makes him special in my opinion is his extremely quick responsiveness and his strategic and pragmatic approach as well as his excellent social skills. He is always focused on the client’s needs. This very client-friendly manner to work is one of the reasons why we appreciate collaborating with Walder Wyss and Philippe Nordmann in particular.’

‘The employment practice of Walder Wyss Ltd. is surely one of the best ones in Switzerland, consisting of many stellar practitioners.’

‘I greatly value Philippe Nordmann. He is very smart, with excellent employment law knowledge, responsive, to the point, yet in-depth. I highly recommend him.’

Key clients


General Dynamics

WuXi AppTec (China), Hong Kong-listed





Sanitas Healthcare



Switzerland > Intellectual property Tier 1

Walder Wyss Ltd. is well known for large transactions involving intellectual property issues as well as for its litigation strength, acting in trade mark, copyright, design and patent disputes. Roger Staub has ‘extraordinary capabilities‘, especially in international IP litigation and arbitration. Markus Frick specialises in trade mark, patent and unfair competition matters and is a ‘great litigator‘. The ‘competent, experienced and committed‘ unit has recently seen increased activity in the life sciences and pharmaceuticals sectors, in particular the biotech industry, where it assisted clients with licensing contracts and technology transfer from universities to industry partners.

Practice head(s):


‘A very professional team, top in IP litigation.’

‘Roger Staub is a great IP litigator with extraordinary capabilities of good ‘storytelling’.’

‘Walder Wyss consistently provides outstanding results and we trust them with difficult cases that require the utmost care.’

‘The attorneys are very responsive and personable which makes working with them a joy. They are very knowledgeable about IP in general which makes trusting them with difficult matters easy.’

‘Competent, experienced, committed.’

‘Markus Frick: A great litigator, tough and with great fighting spirit. Roger Staub: Excellent litigator, one of the best, with excellent connections and good ‘gut feeling’ for the right strategy.’

‘The team can provide an impressively wide range of IP services – it has an incredible depth of experience and can always put someone forward with the particular expertise you need for your case. Its lawyers are extremely collaborative, unflappable and a pleasure to work with.’

Key clients

ABB Ltd.

Actial Farmaceutica Srl

Alcon Inc.




Deutsche Börse/Qontigo

Easygroup, incl. EasyJet

Giorgio Armani SpA

Hitachi/ABB Power Grids

Inventio AG (IP management company of Schindler Group)

Lastminute.com Group

Merck KGaA





Pret A Manger

Richemont (incl. Cartier, IWC, Jaeger-LeCoultre, Piaget, Chloé, Baume & Mercier, Montblanc, Van Cleef & Arpels, Panerai, A. Lange & Söhne)

Snap, Inc. (former Snapchat)


The Association of the Swiss Gas Industry

Switzerland > Leading firms: Italian-speaking Switzerland Tier 1

Walder Wyss Ltd.’s Lugano office, which is jointly headed by Davide Jermini and Stefano Codoni, offers a ‘full 360-degree service in all legal aspects’ and is recognised for its activities in corporate, commercial and M&A matters as well as real estate and litigation. Codoni is ‘the go-to lawyer for technology related transactions, litigations and intellectual property’ and Jermini is ‘excellent’ in corporate, commercial and M&A matters, in particular real estate transactions. Recently promoted Stefano Fornara is a ‘great partner’ with a specialisation in international arbitration and litigation proceedings, especially regarding employment law issues.

Practice head(s):

Other key lawyers:


‘We receive full 360-degree service in all legal aspects of our private and business life.’

‘Our leading lawyer Stefano Fornara handles issues related to residence in Switzerland, real estate acquisition and construction, legal aspects for family members, and also provides any other support related to integration or other issues.’

‘Whenever we contact the team / partners are available and provide the support required. Since our offices are not in the Italian part of Switzerland, the use of advanced technology by the firm has always been a big plus. Billing is always handled smoothly and in a very clear manner. People at the firm are very knowledgeable and easy to work with.’

‘Both Davide Jeremini and Stefano Fornara have a very broad know-how in their fields. They manage our procedures and affairs expeditiously, always keep us informed and we can at any time count on their recommendations. When we come to them with short-term problems, they do everything they’ can to support us, even when they’re running at capacity.’

‘Professional, competent, committed, intellectually honest, dedicated beyond any expectations.’

‘Stefano Codoni is competent, trustworthy and reliable. It is a pleasure working with him.’

‘The firm and their team members are very reactive, responsive and know their subject matters well. It is key that we receive well framed and to the point advice, which is what we are getting time and time again.’

‘Stefano Fornara: Great partner, approachable, practical, direct, honest.’

Key clients

Actial Farmaceutica Srl, Rome, Italy

Bravofly / Bravonext/ Lastminute.com


Artisa Group

Akara Funds AG

Lifeware SA

TDK Lambda


Fiduciaria Mega SA

Cardiocentro Ticino

Switzerland > Private client Tier 1

The private client team at Walder Wyss Ltd. acts for an ‘impressive roster of clients‘ with a focus on acting for entrepreneurs from all types of business sectors as well as their families. The team advises on all personal and business aspects of clients, which includes international succession planning, including marital property law, setting up charitable foundations as well as funds and trusts, and, working in close conjunction with the labour law and real estate teams, the unit advises clients on the relocation to Switzerland and the acquisition of real estate assets. The practice is headed by ‘first classKinga Weiss and ‘outstandingPhilippe Pulfer and includes the ‘very dedicatedRobert Desax, ‘technically excellent‘ tax expert Fouad Sayegh and ‘highly talented’ international trust specialist Olivier Sigg.

Practice head(s):


‘Philippe Pulfer is impressive and omnipresent in the Swiss private client market. Olivier Sigg and Fouad Sayegh have growing reputations in the international tax markets and an impressive roster of clients.’

‘It has some very capable individuals – Philippe Pulfer and Olivier Sigg in particular – who are leaders in the field in Switzerland. They are strong on both contentious and non-contentious private client work and understand trust and Anglo-Saxon concerns as well as Swiss issues.’

‘Superlative client care and brilliant strategic thinkers.’

‘Olivier Sigg is knowledgeable and capable, and happy to do business in both English and French. Fouad Sayegh is technically excellent when it comes to tax issues and a delight to deal with. Philippe Pulfer is well known in international circles and conversant with Anglo-Saxon trust structuring which is rare for a continental lawyer!’

‘They are a leading private client team – high-profile lawyers who are very able and user-friendly with a top notch client base.’

‘Philippe Pulfer is outstanding and is absolutely in the front rank of Swiss private client lawyers (both on the advisory and contentious sides). Kinga Weiss is first class and Olivier Sigg is excellent.’

‘Fouad Sayegh is an outstanding tax lawyer. He is very proactive and sharp when it comes to finding tax solutions for the clients.’

‘Robert Desax and his team are very dedicated and can be contacted for questions in relation with all the Swiss cantons.’

Switzerland > Public law Tier 1

Walder Wyss Ltd. acts for the Swiss government, federal and cantonal entities, local municipalities and state-owned enterprises as well as further public and private clients from the transport, education, energy and healthcare sectors, among others. The ‘easy to understand‘ ‘cutting-edge advice‘ covers all areas relevant to public law, including procurement, natural resources, infrastructure, zoning, public employment and open access law. Practice head and ‘outstanding lawyerHans Rudolf Trüeb has an ‘impressive track record‘ of representing clients in disputes before courts and arbitral tribunals. ‘Extremely skilled litigatorMartin Zobl, who made partner in 2022, and Ramona Wyss are both particularly experienced in matters regarding regulated industries.

Practice head(s):

Other key lawyers:


‘Hans Rudolf Trüeb is the address in Switzerland for public legal matters, especially energy law and administrative court litigation together with Ramona Wyss.

‘A great team. All lawyers are true professionals with great expertise in public health law and general public law. They are great humans which I always like to conduct our business with.’

‘Great people with a sense of humor, great legal expertise and the ability to assess any potential risks for our company. Fair and transparent billing.’

‘We require fast and cutting-edge advice from our legal counsel. Working with Walder Wyss, I receive just that: excellent and crisp advice, delivered fast. Given the size of the Walder Wyss team, which is exceptional in the market, they are able to react to our requests timely and efficiently. Plus they win their cases in court, given their deep experience in litigating before administrative courts at the federal level.’

‘Hans Rudolf Trüeb is an outstanding lawyer with a long and impressive track record, respected by peers and clients alike. He is fast-paced and results-oriented. You definitively want to have him at your side in tight cases. Martin Zobl is an extremely skilled litigator with a deep understanding of public law and procedure.

‘Professional excellence as well as extraordinary client management attention. Will to find solutions with/together with the client. Excellent availability (also on short-term notice) whenever advice is requested.’

‘Outstanding professional excellence in a broad range of areas of public law/which also leads to broadly based judgements. Very approachable and open communication/interaction which is particularly helpful when it comes to “critical matters” or “matters requiring a fast decision-making”.’

‘Outstanding market and legal knowledge. Tough negotiators.’

Key clients

Swiss Confederation (with all its administrative branches)

Canton of Zurich

Axpo Group (Axpo Holding, Axpo Power, Axpo Trading)

Energie 360 Grad AG

SBB – Swiss Federal Railways

SBB Cargo AG

ETH Zürich

ENGIE (France)

Kernkraftwerk Leibstadt AG (nuclear power plant operator)

Zurich University

Universitätsspital Zürich

Universität Kinderspital Zürich Eleonorenstiftung

Hirslanden AG

Zuger Kantonsspital AG

Spital Thurgau AG

Helsana Versicherung AG

Tertianum Gruppe

Switzerland > Real estate and construction Tier 1

Walder Wyss Ltd. has a strong track record of advising on large-scale transactions, in particular for institutional investors on the buy-side. The professional, proactive and solution-orientated team also handles real estate disputes for a variety of clients and advises on corporate real estate matters and urban development projects. ‘Practical and knowledgeable‘ lawyer Francis Nordmann   and the 'very commercially minded' Johannes Bürgi and Marco Strahm head the practice, all specialised in transactions with experience in acting for international institutional investors, wealth funds and ultra-high-net-worth individuals. Katja Schott-Morgenroth acts for private as well as institutional clients on all real estate matters. 'Valuable partner' Davide Jermini is the key contact in the Lugano office. Christian Eichenberger is another name to note.    


‘The most important and leading strength of the team we have delt with in the past numerous times is their professional, proactive and most of all solution-orientated way of working. More than any other law firm for us, Walder Wyss always works with the final goal in mind, helping us to achieve the best result possible without risking a deal.’

‘We believe that Davide Jermini stands out especially for the following characteristics: expert in his field, fast and efficient, honest, proactive, solution-orientated and practical.’

‘Outstanding knowledge and efficient support.’

‘Christian Eichenberger has a very good understanding of our company and its needs and special structure and therefore provides very useful and business-oriented support.’

‘Compared to other Swiss practices, Walder Wyss staff from the juniors up to the partners have relevant international experience and they manage to translate the Swiss local environment into concepts for foreigners.’

‘Johanes Buergi has a very commercial mind in approaching the contractual negotiations and a didactic approach to explaining to his client management the pros and cons of the different options.’

‘Very responsive, practical and effective team.’

‘Francis Nordmann: a practical and knowledgable lawyer.’

Key clients

Artisa Group

Credit Suisse Asset Management (Schweiz) AG



Gold Tree

Swiss Finance & Property

Akara Funds


Zueblin Immobilien Holding

Rhystadt Ltd (consortium of Swiss Pensions Funds)

Switzerland > Tax Tier 1

Walder Wyss Ltd. has considerable know-how in advising Swiss and foreign companies, business owners, investors and employees on tax planning matters. Areas of expertise include the development of tax-efficient structures, tax-optimised remuneration plans and structures for financing as well as tax litigation and compliance. Practice head Maurus Winzap has ‘great in-depth knowledge spanning from tax planning to M&A transactions.Samuel Dürr is well versed in the real estate sector, while Fouad Sayegh is a key contact for private clients queries, trusts, and double tax treaty applications. Fabienne Limacher made partner at the beginning of 2021.

Practice head(s):


‘A leading full-service tax practice headed by Maurus Winzap. Extremely experienced, fully integrated offices located across Switzerland for seamless client service across offices and languages – French, Italian and German.’

‘One should specifically mention Maurus Winzap who is certainly one of the very best in Switzerland and is most highly regarded for his great and in-depth knowledge spanning from tax planning to M&A transactions. Simply outstanding. Great fun to work with.’

‘Fabienne Limacher is super client-focused. Especially tax rulings are done extremely well and fast.’

‘Tailor-made legal services, international culture and dedication of the team.’

‘Fouad Sayegh is dedicated, sharp, clever and humble. It is always a pleasure to work with him.’

‘Very good on complex matters, very client friendly and good accessibility to partners.’

Key clients

Afinum Management Ltd.

AMAG Leasing Ltd.

AWK Group Ltd.

Boehringer Ingelheim Pharma GmbH & Co. KG

DCM Film Distribution (Switzerland) GmbH

Montana Aerospace Ltd.

Planted Foods Ltd.

PureFacts Financial Solutions Inc.

Stragen Pharma SA

wefox Holding Ltd.

Work highlights

  • Advised German-Swiss private equity firm Afinum Management Ltd. on its investment into Threema GmbH.
  • Advised AMAG Leasing Ltd. on the overall structuring and all Swiss legal, tax and VAT aspects on a auto lease securitisation transaction.
  • Advised the consulting firm AWK Group Ltd. on its acquisition of TALOS Management Consultants GmbH.

Switzerland > TMT Tier 1

Walder Wyss Ltd. boasts ‘one of the strongest and largest TMT practice teams among Swiss law firms‘. Headed by David Vasella, the team represents clients in judicial proceedings, arbitral tribunals as well as in investigations by authorities and provides ‘constructive legal advice‘ on a wide range of TMT matters, such as fintech, software as a service, e-commerce and technology transfers – a specialism of Mark Reutter. Recently, the ‘super practical and responsive‘ unit has been particularly busy with cloud migration projects for clients from regulated industries, such as banks. Martin Zobl  made partner at the beginning of 2022.

Practice head(s):

Other key lawyers:


‘Walder Wyss has one of the strongest and largest TMT and data protection practice teams among Swiss law firms. Walder Wyss has been specialising for many years in these areas and is certainly the place to go when it comes to TMT and data protection. In addition to the excellent quality of their work, I particularly like their responsiveness, efficiency and hands-on approach. They know the market and are on top of legal developments and business practices. Also, due to the quality and size of their practice team, they have the resources to assist clients very quickly and successfully handle large and complex assignments and projects.’

‘Jürg Schneider has in-depth legal knowledge with a view for important details, paired with the ability to think outside of the box and come up with practical solutions. He is particularly responsive, client-oriented and always a pleasure to work with. I can certainly recommend Jürg to anyone requiring high quality and precise yet business-oriented advice, in particular for complex and multifaceted TMT and data protection projects.’

‘Super practical and responsive.’

‘Really enjoy working with Jürg Schneider and his team.’

‘I know Walder Wyss as a law firm with a very broad skillset and a large highly qualified team for IT law in general.’

‘Jürg Schneider: great single point of contact, timely and pragmatic delivery, very knowledgeable. David Vasella: very pragmatic, to the point and constructive legal advice.’

‘Walder Wyss is using the latest technology in terms of data protection as they think that using said technologies will bring them experience to support the clients. This is in fact exactly what we are expecting from our lawyers when we hire them.’

‘David Vasella makes sure that the whole team can benefit from his knowledge and from the technologies he is using.’

Key clients







Credit Suisse







Hitachi ABB Power Grids


Kantar Media



Lux International









Swiss Federation



Zurich Insurance

Zurich University

Switzerland > Banking and finance: Zurich Tier 2

Walder Wyss Ltd. offers advice on all banking and finance matters, including regulatory, investigations, funds, finance, fintech as well as transactions in the financial industry. The ‘highly skilled’ and ‘very helpful’ team is headed by Theodor Härtsch and ‘highly respected finance partnerLukas Wyss and includes key contacts Luc Defferrard, Markus Pfenninger, Johannes Bürgi, Ramona Wyss and Roger Ammann. The practice is well known for its advice on large scale international lending transactions, including advising private equity investors on leveraged finance transactions, as well as finance transactions, such as synthetic transactions, covered bond transactions and other securitisations.

Practice head(s):


‘Fast and ready.’

‘Highly skilled. Great legal expertise.’

‘The team is very helpful and has a pragmatic approach. The responsiveness is very high and it is fun to work with.’

‘Lukas Wyss is a well-known and highly respected finance partner who really cares about client needs and cooperation.’

Key clients

UBS Switzerland Ltd. and UBS AG

Credit Suisse (Switzerland) Ltd. and Credit Suisse AG

Zürcher Kantonalbank

Cembra Money Bank


Valiant Bank AG

Migros Bank AG

Equatex AG

Deutsche Private Equity


Ufenau Capital Partners

AMAG Leasing AG

Swisscard AECS GmbH

Switzerland > Commercial, corporate and M&A Tier 2

Walder Wyss Ltd.‘s large team is regularly involved in domestic and multi-jurisdictional private and public M&A transactions, with practice head Alex Nikitine‘s strong capital markets expertise adding value in matters involving listed companies. The members also cover deal structures, due diligence, transaction agreements and regulatory approvals. Markus Vischer and Luc Defferrard also cover PE and VC matters. Urs Gnosis a very strong negotiator who always tries to get the best deal for his clients.Ramona Wyss is well versed in regulated industries, including the energy sector.

Practice head(s):


‘Walder Wyss provided quality advice in a timely manner in relation to a very complex transaction. I appreciated the level of communication and their responsiveness when matters required a quick response.’

‘Urs Gnos has become a trusted advisor through the course of this very long and complex transaction. He is very responsive, provided excellent advice and was focused on ensuring that his firm delivered ‘value’ for the fees charged. I would highly recommend him.’

‘Christian Hagen was very dedicated, responsive and prepared quality work. He was instrumental in managing the deliverables and ensuring the work was kept to the timescales that we were working to. He was very organised and was key to keeping the deal on track.’

‘Attentive, service-minded and knowledgeable team.’

‘Very knowledgeable, service-minded, clear in communication, quickly understands the issues at hand, commercially good advice.’

‘Very strong insight on the business case, not only on legal matters. Outstanding responsiveness, reachability and availability even at late hours or very early in the morning. Very efficient.’

‘Urs Gnos, besides his legal and business knowledge, is a very strong negotiator who always tries to get the best deal for his clients, but can make compromises where needed. He is always in control of the process, even in difficult situations. He is extremely responsive which gives you the feeling of being the most important client. He is straightforward and provides a clear picture of the situation. Even when you contact him, he is involved in your matters and knows any detail of the process.’

Key clients

Nestlé SA

Warburg Pincus International

Sulzer AG



Helm AG

Boehringer Ingelheim


Viseca Holding AG



Tamedia (TX Group)

Glarner Kantonalbank

Montana Tech Components

Bio Energy Group

Work highlights

  • Advised Boehringer Ingelheim on the acquisition of NBE-Therapeutics AG.
  • Advised Groupe Mutuel Holding SA on its acquisition of a majority participation in Neosana AG and its subsidiaries.
  • Acted as lead counsel to ED&F Man Capital Markets regarding the sale of its structured commodities division to Albright Capital and De Jong Capital.

Switzerland > Dispute resolution: arbitration Tier 2

According to clients, Walder Wyss Ltd. ‘is exceptional and stands out from other Swiss firms in its professionalism, expertise, client orientation and responsiveness’. The group is highly regarded for its expertise in construction, plant and engineering disputes, distribution and joint venture agreement claims, and shareholder and post-M&A litigation. The team has also recently seen an uptick in enforcement proceedings, private client and trust disputes, and arbitrations in the commodities and pharmaceuticals sectors. Dieter Hofmann heads up the group, which also fields Micha Bühler, Michael Feit, Diana Akikol and Andrea Meier.

Practice head(s):


‘Walder Wyss is one of the best law firms for arbitration in Switzerland.’

‘We worked with Andrea Meier, who has a great knowledge of the Swiss civil and arbitration law, is very familiar with the Swiss market and was able to promptly address our and the client’s needs.’

‘Walder Wyss’ arbitration team is by far the best team I had a chance to work with: highly professional, brilliant legal minds and again by far the best technically equipped team that used both legal and tech-tools to put forward client’s arguments in a most persuasive manner. They are indeed second to none.’

‘Michael Cartier is by far the best leading counsel. He is hard working, brilliant legal and tech mind that anticipates the opponent’s actions well ahead and prepares the tactics accordingly. He is able not only to assess major points of the case, but also covers each detail that might be of importance down the road.’

‘Michael Feit is excellent, well-respected attorney whose arguments easily gets the attention of the arbitral tribunal.’

‘The international arbitration team of Walder Wyss is exceptional and they stand out from other Swiss firms in their professionalism, expertise, client orientation and responsiveness. For me, they are the leading international arbitration practice in Switzerland.’

‘Michael Feit is a real stand-out in Walder Wyss and in Switzerland altogether. He is exceptionally smart, intelligent and hard working and I would trust him with any work I may have in Switzerland. He is a clear standout for investment disputes in Switzerland but has exceptional capabilities also in commercial arbitration. Micha Buhler is also highly regarded and a leading arbitration practitioner in the Swiss community.’

Key clients

Federation of Bosnia and Herzegovina

Actelion Ltd (part of the Johnson & Johnson group of companies)


Greiner AG

Ali Gohar & Company (Private) Limited

Sharma Fabrictors and Erectors Private Limited

AFRILAND First Group

Idorsia Ltd

Switzerland > Dispute resolution: litigation Tier 2

Walder Wyss Ltd. ‘cultivates a modern and flexible client approach’ which utilises the firm’s six offices across all language areas of Switzerland to provide comprehensive dispute resolution advice. The group demonstrates key expertise in a range of commercial litigation and injunctive relief work as well as knowledge of enforcement proceedings, white-collar crime mandates and corporate disputes. Dieter Hofmann heads up the group and focuses on construction, joint venture, shareholder and post-M&A disputes. Micha Bühler, engineering and construction expert Maurice Courvoisier, Geneva-based Rodolphe Gautier and Andrea Meier, who has expertise in industrial and infrastructure claims, are also active practitioners.

Practice head(s):


‘Top-class academic and practical litigators.’

‘Michael Cartier is top class – very personable and hugely intelligent.’

‘I have been working with the litigation team for quite some time, and they are very competent and effective. They work hard and always have great input on the cases at hand. Good strategy and good guidance for the clients.’

‘One of the largest law firms in Switzerland, cultivates a modern and flexible client approach.’

‘Oliver Kunz, Litigation: outstanding litigator with a developed strategic flair, excellent tactician, thinks out-of-the-box.’

‘Very solid and efficient practice. Excellent management of the case and good engagement with enforcement authorities.’

‘First-rate banking and fraud litigators – they are my go-to firm for complex Swiss civil and criminal fraud cases.’

‘Dieter Hoffman is exceptionally knowledgeable and responsive. Oliver Kunz is very adept at Swiss law criminal issues.’

Key clients


Credit Suisse


Hitachi Zosen Inova AG

University Hospital Zurich

Hinduja Automotive Limited

Eurobank Ergasias (fka Proton Bank)

Ernst & Young


Bergos Bank (Swiss bank)



Switzerland > Leading firms: French-speaking Switzerland Tier 2

The Geneva and Lausanne offices of Walder Wyss Ltd. are well known for their capabilities in private client matters, litigation and white-collar crime proceedings as well as banking and finance, regulatory, real estate and tax issues. Private client specialist Olivier Sigg heads the Geneva office while the Lausanne office is headed by IT and data protection expert Jürg Schneider. Philippe Pulfer, Alexandre Both, Rodolphe Gautier, Hubertus Hillerström, Patrick Vogel and Fouad Sayegh are other key contacts.

Practice head(s):


‘The team is friendly, well organized and helpful.’

‘Partners are opened to discussion with respect to billing. Partners and associates have the extensive knowledge on their expertise and are open-minded in tackling the issues to be addressed.

‘Walder Wyss team covers a wide range of subjects and they are highly professional and experienced, ready to intervene in case of urgencies.’

‘Professionalism, being highly skilled and experienced. Available for urgent and immediate request/cases. Friendly.’

‘Sound knowledge of venture capital and private equity transactions.’

‘Alexandre Both and Grégoire Henriod: Quick, efficient, pragmatic.’

Key clients



Bank J. Safra Sarasin AG

Bank Vontobel AG

Credit Suisse

Deutsche Bank

Banque Cantonale Vaudoise

Edenred Capital Partners

ING Bank

Société Générale

Swisscom Ventures AG


Zürcher Kantonalbank – Private equity fund


Adent Cliniques Dentaires Groupe

Audacia Holding SA



Swiss Bankers Associations

Banque Syz SA


Emmi Schweiz AG



KomGo SA

Switzerland > Leading firms: German-speaking Switzerland Tier 2

Walder Wyss Ltd. has a strong reputation for advice on M&A and capital markets transactions as well as public tender offers and restructurings. Transactions are ably covered by Luc Defferrard, Markus Pfenninger, Alex Nikitine and Urs Gnos. Markus Frick, Philippe Nordmann, Hans Rudolf Trüeb, David Vasella, Reto Jacobs and Johannes Bürgi are other key practitioners. Michael Isler, Irène Suter-Sieber and Reto Vonzun are also noted.

Switzerland > Banking and finance: Geneva Tier 3

Walder Wyss Ltd.‘s Geneva office has several Swiss and foreign banks, securities firms, financial institutions and fintech enterprises on its client roster. It regularly advises them on transactional as well as regulatory matters. Practice head Patrick Vogel also advises on private equity and venture capital transactions. Hubertus Hillerström is a key contact for financings and structured finance, while Adriano Antonietti specialises in regulatory matters.

Practice head(s):


‘The team is friendly, well organised and helpful.’

‘The partners and associates have extensive knowledge in their expertise and are open-minded.’

‘Very efficient resource allocation, extremely knowledgeable, commercially-minded and solution-oriented.’

‘Patrick Vogel: Very efficient resource allocation, extremely knowledgeable, commercially-minded and solution-oriented, very nice to work with.’

Key clients

Bank J. Safra Sarasin AG

Bank Vontobel AG

Credit Suisse

Deutsche Bank

Banque Cantonale Vaudoise

ING Bank

Société Générale

Swisscom Ventures AG

KomGo SA

Switzerland > Healthcare and life sciences Tier 3

Walder Wyss Ltd.

Other key lawyers:

Switzerland > Insolvency and corporate recovery Tier 3

Walder Wyss Ltd.‘s team is well positioned to advise on cross-border insolvencies, restructurings, and related disputes. The group acts for creditors and debtors, which appreciate the group’s  ‘robust advice and guidance‘. Dominik Hohler specialises in restructuring/insolvency and reorganisation transactions, while his co-heads Dieter Hofmann and Mark Reutter have a background in dispute resolution and TMT respectively. Christoph Stäubli retired at the end of 2020.


‘Very responsive, client-oriented, robust advice and guidance.’

‘Dominik Hohler is a rising star, a pleasure to work with.’

‘When it comes to the corporate reorganisation work the impression is very good: the quality of the work was very good, the team was very responsive and solution-oriented.’

‘Dominik Hohler is experienced, responsive and solution-oriented.’

‘Very commercially minded, good availability and flexible on billing; well regarded in the market.’

‘Dominik Hohler is easy to work with and doesn’t get lost in legal details; reliable and quick in adapting to changing requests.’

Key clients

Bank Lender Ad Hoc Group (DTEK Energy)/Note Holder Ad Hoc Group (DTEK Energy)

Lodbrok Capital (Aryzta)

DCM Film Distribution (Arthouse Cinemas)

Meyer Burger Group

Bondholders (Valaris)

Bankruptcy Administrator (STA Travel Holding)

Paracelsus Hospital Richterswil

Ruf Telematik

Informal Group of PIK Loan Lenders (Swissport Group)

Esprit Europe and its Swiss Subsidiaries Esprit Switzerland Retail and Esprit Switzerland Distribution

UBS, Credit Suisse and ING Bank among others (gategroup Holding)

Liquidator (Thomas Cook)

Nespresso Group

Apollo International Management LLP and Funds Managed by Affiliates of Apollo Global Management

The firm: Around 250 legal experts make Walder Wyss one of the most successful and fastest growing Swiss commercial law firms. The firm specialises in corporate and commercial law, banking and finance, intellectual property and competition law, dispute resolution and tax law. Its clients include national and international companies, publicly held corporations and family businesses as well as public law institutions and private clients.

Growth and a close relationship to its clients are the factors that determine the firm’s success. Walder Wyss was established in Zurich in 1972 and has since grown continuously. With offices in Zurich, Geneva, Basel, Berne, Lausanne and Lugano, it provides its clients with seamless one-stop-shop, personalised and high-quality services in all language regions of Switzerland.

Its strong national and international network of correspondents and partners from a broad range of disciplines are selected according to the highest standards of professional competence.

Areas of practice
Banking, finance and insurance: Walder Wyss handles domestic and international banking, securitisations, infrastructure and project finance, domestic and cross-border leasing, and structured financial instruments, as well as over-the-counter and exchange-traded derivatives. Walder Wyss advises on all aspects of Swiss securities laws and regulations.

IT, telecommunications and multimedia: Walder Wyss focuses on the interlinked and converging areas of information technology, internet, multimedia, as well as media and telecommunications law. It advises on software protection, licensing issues, systems integration contracts, and data processing contracts.

Intellectual property: the firm has a wide range of experience in protecting intellectual property rights, as well as exploiting such rights by way of licensing, franchising and merchandising.

Corporate and commercial: Walder Wyss advises on and assists in the incorporation and organisation of business activities in Switzerland, including the establishment of corporations, partnerships, limited partnerships, joint ventures and non-profit organisations.

M&A, restructuring, joint ventures, IPOs and private equity: Walder Wyss handles the structuring and implementation of corporate mergers, acquisitions and divestitures, outsourcings, shareholder agreements, takeovers, demergers, capital restructurings, repurchases of shares, management buyouts, joint ventures, reorganisations, cross-border business arrangements and other direct investment transactions. Walder Wyss advises on seed, early stage and growth financing.

Litigation, arbitration and ADR: Walder Wyss is renowned for its international arbitration and litigation practice. This is reflected both by a high number of arbitration cases, both with respect to party representation and arbitrator appointments, and a well-established commercial court practice leading to an important number of pending cases before the Zurich Commercial Court and other relevant courts throughout Switzerland.

Tax: Walder Wyss’ tax specialists advise on private and public M&A, capital market transactions, IPOs, real estate, structured finance, tax-optimised financial products and investment funds.

Competition/antitrust: Walder Wyss is proficient in all aspects of the regulation of competition. The competition team regularly handles complex merger filings in Switzerland and co-ordinates them with filings in other jurisdictions. The team is routinely involved in questions of market dominance and the design of agreements that do not violate competition law.

Private clients: Walder Wyss advises high-net-worth individuals regarding domestic and international estate planning and provides tailor-made succession solutions. Its services include drafting of wills, pre- and post-nuptial agreements, particularly matrimonial property agreements, and inheritance contracts, as well as any related contractual arrangements, all of which are drawn up in close collaboration with Walder Wyss’ experienced notaries. The firm supports relocations and taking up residence in Switzerland and the planning and setting up of appropriate structures.

Number of lawyers : 250
at this office : 27
Contacts : M Courvoisier
Contacts : A Curmally
Contacts : A Gutmans
Contacts : P Nordmann
Contacts : R von Rosen
Contacts : R Vonzun (management board)
Other offices : Berne
Other offices : Geneva
Other offices : Lausanne
Other offices : Lugano
Other offices : Zurich (main office)