TEAM
Meral Korkmaz
- Certified Tax Expert
- Certified Fiduciary
- Member of EXPERTsuisse


Kadir Korkmaz
Fiduciary
Dep. Managing Director
- Certified finance and accounting specialist (in training)
- Junior Accountant
Kadir Korkmaz completed his 3-year commercial training in a company in the Swiss watch industry. During his apprenticeship, he realized that he wanted to develop his career in the field of finance. He gained his first professional experience after his apprenticeship as a junior accountant in an internationally active company in the food trade in Basel. During this time, he successfully completed the junior accountant course. He joined MK TRUSTAX in June 2022 and is currently completing his next further training to become a finance and accounting specialist with a federal certificate.
Jan Bertolli
- Certified Fiduciary
After several years of banking experience, especially in securities trading, Jan Bertolli joined a trust company in Riehen in 1990, where he was elected to the Board of Directors in 1991. In 2015 he founded his own fiduciary company, Allevio Treuhand AG. Today, Allevio Treuhand AG is a successful fiduciary company that is well established in Basel. His long-standing clients include small and medium-sized companies as well as private persons.
Meral Korkmaz and Jan Bertolli attended and successfully completed the training course for Certified Fiduciary, Federal Diploma of Higher Education (2007 – 2010), together. They are business partners from January 2021, with the primary goal of jointly supporting their clients in all fiduciary and tax matters in a competent and solution-oriented manner.
