This is where you find the right contact person.

General contact
THUM + MAHR GmbH
Heinrich-Hertz-Str. 1-3
D-40789 Monheim am Rhein
Germany
Phone: +49-2173-967 30
Fax: +49-2173-967 400
Registered in Germany:
Amtsgericht Düsseldorf HRB 45259
VAT Registration No: DE 121 393 658
Sales
Sales DACH
Ralf Werner (Account Manager DACH)
rwerner@yellowtec.com
+49-2173-967 361 (Phone)
Sales International
Tobias Mikutta (Account Manager Int.)
tmikutta@yellowtec.com
+49-2173-967 332 (Phone)
Andy Mikutta (Sales Director)
amikutta@yellowtec.com
+49-2173-967 315 (Phone)
Order Processing
Angelika Piechotta (available 8am-1pm)
apiechotta@yellowtec.com
+49-2173-967 343 (Phone)
+49-2173-967 403 (Fax)
Export & Customs
Marianne Mahr (available 12-4pm)
mmahr@yellowtec.com
+49-2173-967 321 (Phone)
+49-2173-967 403 (Fax)
Service & RMA
Sending In Products
Christina Opitz
copitz@yellowtec.com
+49-2173-967 312 (Phone)
+49-2173-967 400 (Fax)
Technical Requests (only via email)
servicecenter@yellowtec.com
Marketing & PR
Kathrin Nimpsch
knimpsch@yellowtec.com
+49-2173-967 334 (Phone)