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A trustful 


Our highly qualified employees are consistent, quality- and solution-oriented - even when faced with the most complex challenges. We have proven know-how and excellent networking.

Interfiducia Mäki Eva

Eva Mäki

lic.rer.publ. HSG, LL.M. International Taxation | Owner

Studied political science at the University of St. Gallen (lic.rer.publ. HSG); Postgraduate studies Master of Advanced Studies in International Corporate Taxation (LL.M. International Taxation). Worked at the Zurich Cantonal Tax Office for 15 years, including participation in the Swiss Tax Conference SSK. Experience in international corporate tax law and correlation between shareholders and society. Recognized speaker on various areas of tax law at various continuing education institutions.

+41 44 421 33 90

interfiducia Carin Antweiler

Carin Antweiler

Head of mandate

Trustee with further training to become a payroll specialist. Over 10 years of practical experience in the fiduciary sector, specializing in international companies. In-depth specialist knowledge and know-how for the development of individual solutions.

+41 44 421 33 90

interfiducia Mojca Avsic

Mojca Avsic

Trustee clerk

Diploma in business administration with further training as an accounting clerk.

+41 44 421 33 90

interfiducia Kölliker Damien

Damian Kölliker

Trustee clerk

Commercial apprenticeship in a trust office and subsequent vocational baccalaureate with a focus on business and services. Prospective student at the ZHAW School of Management and Law in Winterthur.

+41 44 421 33 90

Erich Bosshard Interfiducia

Erich Bosshard

Dr. iur. Lawyer | Consultant

Studied law at the University of Zurich; Acquisition of a license to practice law. Formerly head of the withholding tax department of the Zurich Cantonal Tax Office and president of the working groups "Withholding Tax", "New Wage Statement" and "Expatriates" of the Swiss Tax Conference SSK. Author of various specialist publications on tax law and former lecturer at the University of Zurich.

+41 44 421 33 90

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