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Joseph E. Riedweg

Founder and Senior Partner
Certified Public Accountant
Expert in Finance and Controlling

“For more than 30 years, I have remained faithful to the founding values ​​of AudiConsult SA: Providing competent and appropriate advice, an impeccable service in a climate of trust conducive to a healthy and productive relationship”

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Mathias Dujourdil

Technical Partner
Certified Public Accountant
Chartered Certified Auditor

Mathias has acquired a solid experience in Deloitte and KPMG before joining the company in 2018. Mathias Dujourdil is fluent in French and English.

Daria Dubova

Chartered Certified Accountant FCCA (Great Britain)

Holds a Diploma and Qualification in Accounting and Audit from Academy of Finances of the Government of the Russian Federation, recognized as equivalent of a Master’s degree in accordance with Swiss Higher educational system. Daria Dubova is fluent in Russian, French and English.

Thibault Grass

Head of HR and Internal Administration

Thibault Grass is responsible for the internal administration of our company, as well as its subsidiaries. He heads HR and IT works as chief accountant and administrator. He is also responsible for a client portfolio, primarily in the area of payroll administration. After completing his military service, as an officer, he obtained with honors the Diploma of “Hotel Manager” from the Hotel Management School of Geneva. This has been completed by a “Bachelor’s Degree in Business Administration” from the Geneva School of Business Administration, specializing in audit and controlling. He is in a process of acquiring the Federal Specialist Diploma.

Emilien Moreau

Taxation Area Manager

L.L.M. Tax Holds a Master’s Degree in Advanced Legal Studies from University of Geneva. Emilien Moreau is fluent in French and English.

Ksenia Kharytonska

Manager Legal Services and LBA

Holds a Master’s Degree in General Law and Certificate in Transnational Law from University of Geneva. Ksenia Karytonska is fluent in Russian, French and English.

Charlotte Egli

Communications Manager

Holds a Joint Master’s Degree in International Law and Diplomacy from Fletcher School of Law and Diplomacy, Tufts University and Harvard Law School, Harvard University. Charlotte Egli is fluent in English, Russian, French and Armenian.

Anatoli Ryjkov

Accountant Manager

Holds a License Degree in Business Management from University of Geneva. Mr. Ryjkov is fluent in Russian, French and English.

Marina Rutus


Holds a University Diploma in Business Administration from Trier University, Germany and CAS in Accounting from University of Geneva. Marina Rutus is fluent in English, German, French and Russian.

Bruno Pinheiro

Junior Tax Specialist

Holds a Master’s Degree in Economic Law from University of Geneva. Bruno Pinheiro is fluent in French and English and has notions of Portuguese and Spanish.

Hanane Ait Ouhamou

Administrative Assistant

Holds a Bachelor of Science Degree in Engineering and Industrial Management from University of Applied Sciences of Western Switzerland. Hanane Ait Ouhamou is fluent in French and English.