Our assignment.

Your satisfaction.


We always focus on you, our client.


Our experienced team has the flexibility required to work with you to achieve your goals.


As a family business, we understand and value the benefits of a personal approach. Resilience and give-and-take are our watchwords.

What makes us special?

We have been exploring the best ways to meet our clients’ needs for over 30 years.

René Seiler

Managing Director / Chairman of the Board
«My role as a father has taught me how to remain composed and keep looking at the big picture when the stakes are raised.»

Raphael Keller

Director / Member of the Executive Board
«Every day brings different challenges – it’s what makes our work so enjoyable. I always strive to make the best of any situation for our clients.»

Paul Seiler

Founder of Seiler Treuhand AG
«I continue to work in my retirement because I’m passionate about helping our clients flourish.»
We appreciate Seiler Treuhand especially for the competent and personal “all-round support” with which they support us in all questions concerning payroll accounting, Swiss social insurances and personnel issues! We are very grateful for the professional advice and support in Switzerland.
Judith Stetter / Air Canada