Dipl.-Kfm. Joerg Mueller
Certified Public Accountant and Tax Advisor (Germany and USA)
ISCA Professional Business Accountant (Singapore)
Chartered Global Management Accountant


Dipl.-Kffr. (FH) Michaela Graefe
Tax Advisor
Certified Advisor in International Taxation

Dipl.-Wirt.jur. Christoph Vitt

German Certfied Public Accountant / Tax Advisor

Together with our partners, we are able to offer a broad range of services including:

  • International consultancy
  • Management consultancy
  • Marketing and communication consultancy
  • Auditing
  • IT consultancy
  • Financial communication
  • Legal advice
  • Investment / retirement consultancy
  • Consultancy for establishing clubs / foundations
  • Insolvency assistance
  • Inheritance and succession
  • Labor law

Wirtschaftsprüfungsgesellschaft GmbH
Hauptstraße 68, 57482 Wenden
und: In der Wüste 16, 57462 Olpe

Delta Revision
Wirtschaftsprüfungsgesellschaft Steuerberatungsgesellschaft GmbH
Harrlachweg 5, 68163 Mannheim

Häner & Partner
Steuerberater Partnerschaft mbB
Hauptstraße 68, 57482 Wenden
und: In der Wüste 16, 57462 Olpe

Köhler & Collegen
Steuerberater • Partnerschaft
Kölner Str. 46, 57555 Mudersbach

Luther Lawfirm Singapore
Luther LLP
4 Battery Road
Bank of China Building, #25-01
049908 Singapore

The New York Tax Group
220 East 42nd Street, New York, NY

WP-W Dr. von Waldthausen GmbH
Wirtschaftsprüfungsgesellschaft • Steuerberatungsgesellschaft
Georg-Wilhelm-Straße 3, 10711 Berlin

W2E Consultant (Global) Pte. Ltd.
18 New Industrial Road, #02-01
049908 Singapore