Our team

Peter Steimle Contatto diretto

Senior Managing Partner, lic. oec. HSG, is the founder and controlling shareholder of the firm. A graduate in Economics from St Gallen University in Switzerland, Peter has nearly 40 years experience in providing tax and legal integrated solutions to a large number of Swiss and international clients. He is a regular lecturer on Swiss and International fiscal topics as well as a speaker at conferences and seminars in Switzerland and abroad. Peter is a member of both the International Fiscal Association and the International Tax Planning Association. He has also served until December 2019 as chairman of the British-Swiss Chamber of Commerce for the Canton Ticino, Switzerland. 

Beatrice Zibelli Contatto diretto

Managing Partner, holds the Swiss Federal Trustee Certificate issued by the Chamber of Trustees of Zurich (2000). She also holds the Cantonal (Ticino) Trustee License. Being "Swiss born and bred", Beatrice has an extensive knowledge and experience in all Swiss issues not only those related to the tax world. Thanks to her long standing professional experience in managing Swiss and international corporate and fiscal mandates, and her perfect knowledge of Italian, German, French and English, Beatrice can provide efficient advisory and managerial services to our national and international clients.

Serena Bonfanti  

She graduated in Economics and Business Law from the Bocconi University of Milan. In 2011 she has obtained her Master's degree of Advanced Studies SUPSI in Tax Law in Manno, Switzerland and she is registered with the Ticino Cantonal Register of Fiduciaries.
Her training and extensive experience in the legal and corporate field, both Swiss and partly foreign, allow her to best manage mandates that go beyond the mere Swiss tax area.
Serena communicates fluently in I,E and F.

Donatella Cairoli Contatto diretto

Donatella assists the partners and provides general administrative tasks for the management of the offices.
Donatella communicates in the Swiss national languages and in English.


Of counsels:


Peter A. Jäggi Contatto diretto

Tax lawyer, Swiss Certified Tax Expert, Doctor of Law and Barrister. He provides specialist advice as of counsel in the fields of corporate and individual taxation, tax litigation and administrative assistance / exchange of information in tax matters. Languages: Italian, French, English, German.

Stefano Scheller Contatto diretto

Swiss Certified Tax Expert, Doctor in Economics and Legislation. He intervenes as specialist advisor as of counsel in corporate and individual taxation, tax litigation, indirect taxation as well as consultant in corporate law issues. Languages: Italian, German, French, English.

Peter and Stefano assure as of counsel a high standing professional expertise and they complete dedicated teams of Steimle & Partners Consulting Sagl, having the goal to provide efficient tailored solutions, which meet the expectations of our Swiss based and international clients.

Michele Romerio Contatto diretto

He holds the Swiss Federal Certificate as Accountant and Finance Expert and has an extensive knowledge and longstanding experience (since 1996) as accountant and auditor as well as in Swiss tax compliance matters. Thanks to the co-operation with Michele as our external service provider, our clients can benefit of efficient and reliable financial accounting respectively audit services.