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.
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
M.A. HSG / Attorney at Law / Swiss Certified Tax Expert
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
Swiss Certified Public Accountant / Graduate Business Economist / Swiss GAAP FER certified
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.
Ralf is our all-rounder at Wadsack Zug AG and has broad experience thanks to his many years of activity in the fiduciary sector. His particular strengths lie in tax and accounting issues and salary administration.
After his compulsory schooling, he first completed a mechanical apprenticeship until the fiduciary world began to fascinate him. At a medium-sized fiduciary company in Zug, he developed within 10 years from an apprentice to a fiduciary expert. He is a Specialist in Finance and Accounting with a Federal Professional Certificate, a Federally Accredited Fiduciary Expert and a Certified Auditing Expert.
Ralf joined Wadsack in March 2010. He is married and lives with his wife and two children in beautiful Oberägeri. In his free time, he plays music with the BeachBand and he loves to discover the world while travelling.
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
lic. iur., Attorney at Law, Swiss Fund & Asset Management Officer FA/IAF
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.