
Auditing
Comeback or Newcomer?
We are the right partner for everyone

Accounting &Taxes
As co-pilots, we are your partner
for business success

Management Consulting
We are the right partner
for a comeback of your profits

About us
We are the right partner
for a comeback of your profits.
Why should you work with us?
Copartner Revision AG prioritises the client and values delivering high-quality consulting services. It aims to establish solid, long-lasting ties with its customers and business associates. The company operates with a high degree of professionalism while fostering a friendly, collaborative corporate culture.
The team behind Copartner
People with responsibility. Expertise as a trusted peer.
Management
Operationally close. Entrepreneurial thinking. Reliable leadership.
Copartner - 1992 to present.
Join us on our journey
Copartner Revision AG was founded in November 1992 and has provided services in auditing, fiduciary services & taxation, and management consulting from the outset. It began with a small and qualified team that primarily supported and provided comprehensive services to small and medium-sized enterprises in northwestern Switzerland.
Over the years, Copartner has grown steadily and now operates across the entire German-speaking part of Switzerland. Today, we are an established and respected advisory firm serving clients across German-speaking Switzerland in the areas of auditing, accounting and tax services, as well as management consulting.
Based on the number of audit mandates documented in the commercial register, we are ranked 2nd in the canton of Basel-Stadt and 3rd in the canton of Basel-Landschaft. Nationwide, we are ranked 12th and are the 3rd largest audit firm in Switzerland, authorised as an audit expert by the Swiss Federal Audit Oversight Authority (FAOA).
Excellent consulting and consistent customer focus have shaped Copartner's self-image since the company's establishment. We build on long-term, stable partnerships and create sustainable value through trust and reliability.
We combine professional standards with the corporate culture characterised by team spirit, openness, and mutual respect. We are proud of our independence, which is why Copartner is entirely owned by its senior management.







