Our services


Today’s world is full of uncertainties, and businesses need to be increasingly transparent with their accounts. Trust between the company’s stakeholders can be strengthened through rigorous checks performed by qualified professionals.

DYN Audit meets the criteria for employing approved auditors, having gained certification from the Swiss Audit Supervisory Authority in the area of auditing.

Our team of approved auditors can perform a limited audit of your company’s annual accounts and provide additional audit certificates required by law.

Our support

DYN Audit can act as an auditor to perform statutory audits, providing both an external and objective view of your company’s accounts. The auditing service supports you throughout your company’s existence and advises you in order to guarantee the reliability of its accounts.

Limited audit

Limited audits must be performed if the full-time workforce averaged out over a year exceeds 10. Companies that do not meet this criteria may choose not to take part in the limited audit, provided that it has the consent of all shareholders.

If the companies which have exceeded the following thresholds over the last two financial years:

  • Total balance sheet CHF 20 million
  • Total revenue CHF 40 million
  • Workforce of 250 full-time employees averaged out over a year.

If the full-time workforce averaged out over a year does not exceed 10 employees, the company may choose not to take part in the limited audit, provided that it has the consent of all shareholders.

Additional audits

We can also intervene for special checks, such as:

  • Auditing foundation reports by contribution in kind
  • Auditing capital increase reports
  • Review in the event of liquidation
  • Auditing in the case of revaluations for the purpose of removing a loss from the balance sheet
  • Review on the interim balance sheet at operating and liquidation values
Do you have a question ?
Do you need support ?

Your contact person in Audit

Sarah Gretillat

Qualified accounting expert
Swiss Audit Supervisory Authority approved auditor expert

Sergio Pereira

Chartered auditor
HES Business Economist

All of our services

Sarah Gretillat

Sarah Gretillat has been a partner at DYN Audit since 2022. She has been active in auditing for several years, and her dynamic and rigorous personality is an asset when it comes to carrying out limited audits of your annual accounts or providing other auditing services.


Bachelor’s degree in economics
Master’s degree in Accounting, Finance and Controlling
Certified accountant
Certified auditor AS


French – English – Spanish

Sergio Pereira

Sergio Pereira joined DYN in 2022 with more than 15 years’ experience in fiduciary. He began his career at the Moudon district tax office, then completed his training with a bachelor’s degree at the Canton of Vaud’s School of Management and Engineering before joining a renowned fiduciary in Lausanne. Finally, he obtained ASR accreditation as an auditor.
With a wealth of experience, he provides tailor-made support to large companies, groups and SMEs in the areas of finance, taxation, digitalization and audit.


Certified auditor
Business economist HES


President of GYM Corcelles-le-Jorat
Unihockey kids coach


French – Portuguese – English

Listed as one of the “Best tax and fiduciary experts in Switzerland 2023” by the PME & Bilanz newspaper.