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Due to technical issues, the accounting is currently not reachable by email.

Accounting

  • Please use debitoren@ism.de for inquiries regarding outgoing invoices issued by ISM to customers.
  • Please use eingangsrechnungen@ism.de for inquiries regarding incoming invoices (e.g., invoices from lecturers or external partners).

Contact persons

Mark Friedmann

Mark Friedmann

Vizepräsident Economic & Financial Affairs 

Tel: +49 231 975139-701

E-Mail: mark.friedmann@ism.de 

Foto Anna Kleyn

Nicole Giebels

Head of Accounting

Tel: +49 231975139-41

E-Mail: nicole.giebels@ism.de

Nadine Nehrenheim

Deputy Head of Accounting

Tel: +49 231975139-26

E-Mail: nadine.nehrenheim@ism.de

Mark Friedmann

Sarah Rink

Accounts receivable

Tel: +49 231 975139-708

E-Mail: sarah.rink@ism.de

Foto Anna Kleyn

Kevin Potratz

Accounts receivable

Tel: +49 231975139-707

E-Mail: kevin.potratz@ism.de

Patricia Knelsen

Accounts receivable

Tel: +49 231975139-374

E-Mail: patricia.knelsen@ism.de

Mark Friedmann

Elisabeth Herbststreit

Accounts payable

Tel: +49 231 975139-702

E-Mail: elisabeth.herbststreit@ism.de

Foto Anna Kleyn

Svenja Owczarzak

Accounts payable

Tel: +49 231975139-707

E-Mail: svenja.owczarzak@ism.de