Your success is our mission


Voluntary audits in accordance with the Budget Principles Law
Statuatory and voluntary annual audits of stock corporations and partnerships in accordance with §§319 HGB
Voluntary audits in accordance with investment law (§24 Gesetz über Vermögensanlagen VermAnlG)
Voluntary risk management audits
Statuatory audits of listed stock corporations under §319a HGB

Other Services

Share valuations under S 8 (IDW) Fair Opinion
Business consulting on various topics
Evaluations of internal control systems
Company valuations under IDW S 1

Our Clients

A broad spectrum

Listed stock corporations
Large partnerships as defined in § 264 b HGB
International corporations

Clients in numbers

Sales volume: EUR 500,000 to 500,000,000
Balance sum: EUR 400,000 to 146,000,000
Employees: 100 – 500

Management Team

Gertrud K. Deffner

Diploma in Business Administration (Diplom-Kauffrau)
Certified Public Auditor since 2000
Tax Consultant since 1997

Author on the fundamentals of business evaluations:
„Schnelleinstieg BWA“ (Haufe)

Walter Okon

Diploma in Business Administration (Diplom-Kaufmann)
Certified Public Auditor since 1997
Tax Consultant since 1990

Fundamentals and skills

German Law, Tax Law, German Commercial Code (HGB)
International Financial Reporting Standards (IFRS)
Investment Law (Vermögens-anlagegesetz VermAnlG)


Auditors‘ Society (Wirtschaftsprüferkammer) N° 151 1221 00
IDW  – Institute of Public Auditors
Wp-net association of German Public Auditors
Liability insurance: Hiscox Insurance VH.VSH.1250737

We are looking forward
to our productive cooperation!

Feel free to contact us
using the contact information below

Gertrud Deffner

Kinzigstraße 12
77694 Kehl

Phone +49 78 21 28 89 943
Mobile +49 160 52 71 215

Walter Okon

Mollstr. 33
68165 Mannheim

+49 62 14 18 32 34