Lukas is an experienced Tax Consultant with a professional career of almost 10 years. Before joining Wadsack as a partner, he worked for 2 major and important law firms in Zurich and Zug as a member of the tax team and advised private individuals and companies. During this time, he has gained additional experience in all areas of commercial and corporate law, as well as in the notarial field.

Lukas holds a Master of Law degree from the University of St. Gallen and is a lawyer. He is also a Federally Certified Tax Expert. He is an active member of various professional organisations, such as the Zug Bar Association and the Swiss Bar Association, as well as the International Fiscal Association. Lukas heads the Tax and Legal Department of Wadsack.

Languages: German, English

Before joining WADSACK, he was working in Santiago de Chile for a consulting firm and after that for an international audit and accounting firm in Zurich. During this time, he gained large experience in the area of financial audit and valuation services.

Mark graduated at the University of St. Gallen with the Bachelor in Economics and the Master in Banking and Finance. Moreover, Mark is a Swiss Certified Accountant and a licensed auditor for financial audits in Switzerland.

He is an active member of various professional associations, such as Expert Suisse. Apart from his activities in our Zug Office, he is leading our Office in Solothurn.

Languages: German, English, Spanish

Cyril has many years of experience as a Financial Auditor. Before joining the partnership at Wadsack, Cyril worked for two of the Big 5 auditing and consulting companies in Zurich, Solothurn and Olten. With his extensive experience in consulting, he supports national and international customers. Cyril also specialises in auditing and advising NPOs and in accounting according to Swiss GAAP FER.

Cyril graduated from the University of Applied Sciences in Olten with a degree in Business Administration FH. He is also a Swiss Certified Financial Auditor and is certified in Swiss GAAP FER by Expert Suisse. He is a member of various industry associations.

Languages: German, English

After training as an auditor with an international consulting and auditing company in Zug, Roger gained further experience with a smaller law company in Zurich. Since June 2020, he has been working for Wadsack as a Mandate Manager and Member of the Management Board. Roger has many years of experience in auditing small and medium-sized, national and international companies (SMEs). He has in-depth knowledge of various accounting standards. His speciality is the preparation or auditing of consolidated financial statements, in particular according to the Swiss GAAP FER accounting standard.

Roger holds a Bachelor's degree in Business Administration from the University of Applied Sciences Northwestern Switzerland. Additionally, he is also a Federally Certified Financial Auditor. He is an active member of various professional organisations, such as EXPERTsuisse. He also heads the Auditing Department at the headquarter in Zug.

Languages: German, English

Hans Wadsack founded our firm in 1983 in Zug, Switzerland, and he constantly developed it during the years. Before becoming an entrepreneur with his own firm, he was the chief accountant of a Swiss entreprise in Freetown, Sierra Leone, as well as the chief accountant of a US-entreprise in Zug. After that, he was financial Auditor at a Swiss audit firm in Zug and Zurich.

As from 1982 he was working as a Swiss certified accountant in the position of a manager in the area of auditing and tax advisory. Since the incorporation of wadsack treuhandgesellschaft, he was constantly developing and the firm.

Apart from that, he was one of the founding members of the Zug Association of Fiduciary Firms and was the secretary until the year 2000. Furthermore, he was also one of the founding members of the Zug Tax Association and was a member of the editorial commission until 2015 of the "Zuger Steuerpraxis". With his extensive experience, he advises national and international clients in the areas of audit, tax, accounting and business consultancy. He regularly attends various seminars in these areas in order to maintain the high quality standard of this work. He is member of several professional local and regional associations.

Languages: German, English, French

Patrick has many years of experience as a lawyer in the field of commercial, corporate and contract law. Prior to joining Wadsack, Patrick worked for one of the large consulting and accounting firms as an attorney primarily in the banking, asset management and insurance sectors. In this capacity, he advised a variety of national and international individuals and companies on legal matters and was involved in various regulatory audits and special audits.

Patrick holds a Master in Law (lic.iur. MLaw) from the University of Zurich, is a Swiss Attorney-at-Law and Swiss Fund & Asset Management Officer. In 2020, he completed the Global Executive MBA at IESE Business School (University of Navarra). In addition, Patrick regularly publishes on legal and regulatory topics and assists clients with compliance issues, regulatory compliance and money laundering regulations.

Languages: German, English

Anna has many years of experience as a Swiss tax expert. Before joining Wadsack as an authorised signatory, Anna worked for 8 years in the tax team of a Big 4 audit and consulting firm in Zurich. During this time, she gained extensive knowledge in the field of national and international tax law. Prior to her time as a tax expert, Anna worked in a large law firm in Basel. During this time, she gained experience in all areas of commercial and corporate law as well as employment law.

Anna graduated at the University of St. Gallen with a Master in Law and Economics and is an attorney-at-law. Moreover, she is a Swiss certified tax expert and a member of Expert Suisse.

Languages: German, English, Polish

Claudio has more than 15 years of experience in national and international tax law. Before joining Wadsack as an authorized signatory, Claudio worked for one of the Big 4 audit and consulting firms in Zurich and partly in Geneva. During this time, he gained extensive knowledge in the area of international tax law for companies and is available to national and international clients with his many years of experience.

Claudio studied economics with a focus on finance at the University of Zurich. In addition, Claudio is a Swiss certified tax expert and a member of Expert Suisse.

Languages: German, English, Spanish

Kevin has around 5 years of experience in national and international tax law. Prior to joining Wadsack as an authorised representative, Kevin worked for one of the Big 4 auditing and consulting firms in Zug. During this time, he gained knowledge in the area of national and international tax law for legal entities as well as for individuals and is available to national and international clients with his experience.

Kevin studied law at the University of Lucerne and completed his Master of Law in the profile "Protection & Security" in 2016. In addition, Kevin is currently in training to become a Federal Tax Expert and is a member of ExpertSuisse.

Languages: German, English

Jan has many years of experience as a Corporate Finance Consultant. Before joining Wadsack, he worked as an authorised signatory for an international consulting and auditing company in Zurich and Hamburg. During this time, he gained experience in various areas of corporate finance consulting (financial modelling, restructuring, valuation services).

Jan received a diploma in Business Administration in Dortmund/England and Hong Kong. He is also a Chartered Financial Analyst (CFA) and an active member of the corresponding CFA Society.

Languages: German, English