About Us

From the region, for the region – local, personal, trustworthy.

Do you have any questions? We are always here for you. Contact us without obligation and receive individual advice!

Onaccounting AG

your digital trustee

Ein Mann und eine Frau sitzen an einem Schreibtisch vor einem Computer.

About Onaccounting AG

Your trusted trust partner in Dübendorf - digital, uncomplicated and reliable.

Onaccounting AG is your reliable partner for trust services in Dübendorf. With in-depth expertise in the areas of accounting, taxes, auditing and legal issues, we support you in safely achieving your financial and business goals.


Our core tasks include the careful and timely processing of your financial accounting, payroll accounting and the preparation of annual financial statements. In addition, we carry out audits to ensure compliance with legal regulations and the transparency of your financial processes. We ensure clarity and efficiency so that you can concentrate fully on your core business.

Our vision

At Onaccounting AG, we strive to be the first point of contact for companies in Dübendorf and the region when it comes to trust and auditing services. Our goal is to create sustainable added value through professional expertise, personal support and tailor-made solutions.


We don't just want to solve your current challenges, but also develop long-term strategies with you that will ensure your success. Trust, quality and regional ties form the basis of our actions - today and in the future.

Our dedicated team with a passion for trust & auditing – together for your success.

Our team

Eine Frau mit Brille und Jacke lächelt in die Kamera

Melanie Giang

Co-Founder

  • Dipl. Wirtschaftsprüferin
  • Licensed Audit Expert

(RAB No. 112710)

  • Bsc. Business Law
  • Languages: German (native speaker), English (fluent), French (fluent)



Melanie is an experienced auditor with many years of experience at one of the leading auditing firms and brings extensive expertise in managing financial and operational accounting. Her in-depth knowledge and dedicated approach to work enrich our team.


Ein Mann im Anzug und mit Brille steht mit verschränkten Armen da.

Silvio Börlin

Co-Founder

  • Dipl. Business Economist HF
  • Dipl. Wirtschaftsfachmann VSK
  • Languages: German (native speaker), English (fluent)



With his origins in the industrial sector, Silvio brings with him a wealth of experience from the life of a traditional SME. These insights enable him to authentically empathize with the procedures and processes of smaller companies. As a team-oriented personality, he is always ready to provide support.


Ein braun-weisser Boxerhund mit schwarzer Fliege

Harvey (Specter)

Chief Happiness Officer

  • Frisbee Catcher
  • Dipl. Nap Taker
  • Languages: Barking and whining (native language), howling (fluent to business fluent)



Harvey is passionate about giving the team regular breaks in the fresh air. With his playful and charming manner, he creates relaxed moments and enriches the team in the long term. His contribution is invaluable and indispensable to the overall team dynamic.


Our location

Located in the heart of Dübendorf, Onaccounting AG is your local expert for trust, tax and audit services. Our central location not only offers you ideal accessibility, but also the proximity that you value for a trusting collaboration.

Dübendorf, an up-and-coming and dynamic city in the Zurich Oberland, offers an inspiring environment for companies and private individuals. We are proud to be part of this vibrant region and to support our customers with tailor-made solutions in the areas of accounting, taxes, company formation and auditing.


Our modern office space in Dübendorf is designed to offer you pleasant and efficient advice. Parking spaces and good public transport connections ensure that your visit to us is as uncomplicated as possible.


With a location in Dübendorf, we focus on regional ties and a strong local presence.

Free initial consultation

Arrange a non-binding and free initial consultation – together we will find out how we can best support you.

  • time savings and efficiency gains

    By outsourcing routine tasks to the trustee, companies can focus on their core competencies and increase their productivity.

  • Legal Certainty and Compliance

    Trustees are familiar with the complex legal and tax regulations and ensure that companies meet all requirements.

  • cost optimization

    By designing processes efficiently and utilizing synergies, companies can save costs.

  • Improved decision-making

    With us as your trustee, you benefit from clear analyses, well-founded recommendations, and modern tools that help you make confident and goal-oriented decisions. We prioritize transparency, personalized advice, and practical scenarios to ensure you always make the best choice in every situation.