Team and Persons in Charge


You would like to make an appointment and get information?

Are you interested in a presentation at your company?

Please contact:

Hans-Christian Sirries
Managing Director
Sales and Account Management

E-Mail: sirries@cosib.de
Phone: +49 (0) 2161 946 397 – 0
Fax: +49 (0) 2161 946 397 – 11

Do you have any questions about SAP Business One on HANA?

Please contact:

André Coenen
Managing Director
Senior Consultant

E-Mail: coenen@cosib.de
Phone: +49 (0) 2161 946 397 – 0
Fax: +49 (0) 2161 946 397 – 11

If you want to be informed about references or product information,

Please contact:

Eva Uebe-Peters
Certified Sales Executive for SAP
Office, Sales

E-Mail: uebe@cosib.de
Phone: +49 (0) 2161 946 397 – 0
Fax: +49 (0) 2161 946 397 – 11

Do you have any questions about SAP Business One and Crystal Reports?

Please contact:

Sebastian Geisen
Certified Consultant SAP 9.2, Consulting /Support
Crystal Reports, SAP CLOUD

E-Mail: geisen@cosib.de
Phone: +49 (0) 2161 946 397 – 0
Fax: +49 (0) 2161 946 397 – 11

Leif Schovenberg
B.A. / Business IT
Consultant SAP 9.2, Consulting/Support

E-Mail: schovenberg@cosib.de
Phone: +49 (0) 2161 946 397 – 0
Fax: +49 (0) 2161 946 397 – 11

Vitaliy Zhuk
IT Specialist
Consultant SAP, Consulting / Customizing

E-Mail: zhuk@cosib.de
Phone: +49 (0) 2161 946 397 – 0
Fax: +49 (0) 2161 946 397 – 11

Dirk Gerland
Certified Consultant SAP 9.0 Customizing / Crystal Reports


E-Mail: gerland@cosib.de
Phone: +49 (0) 2161 946 397 – 0
Fax: +49 (0) 2161 946 397 – 11

Do you have a question about Boyum Usability Package?

Please contact:

Erik Vyskocil
Certified Consultant SAP 9.0, Consulting/Support
Boyum UP CLOUD

E-Mail: vyskocil@cosib.de
Phone: +49 (0) 2161 946 397 – 0
Fax: +49 (0) 2161 946 397 – 11

Sebastian Geisen
Certified Consultant SAP 9.2, Consulting/Support
Boyum UP CLOUD

E-Mail: geisen@cosib.de
Phone: +49 (0) 2161 946 397 – 0
Fax: +49 (0) 2161 946 397 – 11

Do you have a question about the SAP BUSINESS Intercompany Solution (b1i)?

Please contact:

André Coenen
Managing Director
Senior Consultant

E-Mail: coenen@cosib.de
Phone: +49 (0) 2161 946 397 – 0
Fax: +49 (0) 2161 946 397 – 11

Erik Vyskocil
Certified Consultant SAP 9.0, Consulting/Support
Boyum UP CLOUD

E-Mail: vyskocil@cosib.de
Phone: +49 (0) 2161 946 397 – 0
Fax: +49 (0) 2161 946 397 – 11

Do you have a question concerning our security service?

Please contact:

Harry
Security Service

Phone: +49 (0) 2161 946 397 – 0
Fax: +49 (0) 2161 946 397 – 11