Siewert & Kau
Siewert & Kau
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Contact partners

Do you have questions or feedback relating to our products or services? We are happy to help you – via e-mail, Skype, telephone and fax.

To find the correct partner for your enquiry as quickly as possible, you can look for a name in the list directly and filter according to department, knowledge of languages and location.

New customer

New customer go please to the customer registration form.

Or contact us via E-Mail: neukunde@siewert-kau.de.

General contact

Monday to Friday 9.00 a.m. to 6.00 p.m.
Central: +49 (0) 2271 763 0
Order hotline: +49 (0) 2271 763 100
Fax: +49 (0) 2271 763 280
E-mail: info@siewert-kau.de
RMA: hotline@siewert-kau.de

Contact People

Name Position Department Location Languages
Quratulayan Ahmad
Ahmad, Quratulayan Backoffice
Department
Purchasing Department
Location
Butzbach (DE)
Languages
English, German, Hindi
Contact
+49 (0) 6033 92492 30
QAhmad@siewert-kau.de
Skype for Business: QAhmad@siewert-kau.de
Zakia Ahmad
Ahmad, Zakia Purchase Manager
Department
Purchasing Department
Location
Butzbach (DE)
Languages
English, German, Hindi
Contact
+49 (0) 6033 92492 31
zahmad@siewert-kau.de
Skype for Business: zahmad@siewert-kau.de
Dardan Ahmeti
Ahmeti, Dardan International Sales Representative
Department
Distribution International
Location
Bergheim (DE)
Languages
Albanisch, English, German
Contact
+49 (0) 2271 763 391
DAhmeti@siewert-kau.de
Skype for Business: DAhmeti@siewert-kau.de
Lutz Ahrens
Ahrens, Lutz Account Manager SMB
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 177
lahrens@siewert-kau.de
Skype for Business: lahrens@siewert-kau.de
Nadia Allali
Allali, Nadia Costumer Relationship Management
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 167
nallali@siewert-kau.de
Skype for Business: nallali@siewert-kau.de
Annett Allstädt
Allstädt, Annett Product Logistic Manager
Department
Purchasing Department
Location
Braunschweig (DE)
Languages
English, German
Contact
+49 (0) 531 390 27 25
aallstaedt@siewert-kau.de
Skype for Business: aallstaedt@siewert-kau.de
Jana Augustinowitz
Augustinowitz, Jana Partner Development
Department
Distribution Germany
Location
Braunschweig (DE)
Languages
English, German
Contact
+49 (0) 531 390 27 66
jaugustinowitz@siewert-kau.de
Skype for Business: jaugustinowitz@siewert-kau.de
Stefan Aulich
Aulich, Stefan Account Manager SMB
Department
Distribution Germany
Location
Braunschweig (DE)
Languages
English, German
Contact
+49 (0) 531 390 27 54
saulich@siewert-kau.de
Skype for Business: saulich@siewert-kau.de
Madeline Außem
Außem, Madeline E-Commerce Content Creator
Department
E-Commerce
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 255
maussem@siewert-kau.de
Skype for Business: maussem@siewert-kau.de
Robert Außem
Außem, Robert Administration
Department
Network Engineering
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 178
raussem@siewert-kau.de
Skype for Business: raussem@siewert-kau.de
Olivier Baak
Baak, Olivier Purchase Manager
Department
Purchasing Department
Location
Hengelo (NL)
Languages
Dutch, English, German
Contact
+31 (0) 74 - 782 05 10
OBaak@siewert-kau.com
Skype for Business: OBaak@siewert-kau.com
Victor Barghizadeh
Barghizadeh, Victor Partner Development
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 199
vbarghizadeh@siewert-kau.de
Skype for Business: vbarghizadeh@siewert-kau.de
Margot Barthels
Barthels, Margot Developer
Department
Controlling & B.I.
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 231
MBarthels@siewert-kau.de
Skype for Business: MBarthels@siewert-kau.de
Anil Baskoc
Baskoc, Anil International Sales Manager
Department
Distribution International
Location
Munich (DE)
Languages
English, German, Romanian, Turkish
Contact
+49 (0) 89 93083 89 50
abaskoc@siewert-kau.de
Skype for Business: abaskoc@siewert-kau.de
Tim Bauer
Bauer, Tim Account Manager SMB
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 377
tbauer@siewert-kau.de
Skype for Business: tbauer@siewert-kau.de
Rocco Baumgarten
Baumgarten, Rocco Team Leader SMB
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 187
rbaumgarten@siewert-kau.de
Skype for Business: rbaumgarten@siewert-kau.de
Jens Becker
Becker, Jens Channel Marketing Specialist
Department
Marketing
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 396
jbecker@siewert-kau.de
Skype for Business: jbecker@siewert-kau.de
Bernd Bendel
Bendel, Bernd Accounting
Department
Accounting
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 316
bbendel@siewert-kau.de
Skype for Business: bbendel@siewert-kau.de
Halid Berisa
Berisa, Halid Key Account Manager
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 156
hberisa@siewert-kau.de
Skype for Business: hberisa@siewert-kau.de
Sven Bertram
Bertram, Sven Focus Sales
Department
Competence Center Dell Technologies
Location
Braunschweig (DE)
Languages
English, German
Contact
+49 (0) 531 390 27 58
sbertram@siewert-kau.de
Skype for Business: sbertram@siewert-kau.de
Pascal Blum
Blum, Pascal Sales Support
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 172
PBlum@siewert-kau.de
Skype for Business: PBlum@siewert-kau.de
Fabio Bonanno
Bonanno, Fabio International Sales Manager
Department
Distribution International
Location
Bergheim (DE)
Languages
English, German, Italian
Contact
+49 (0) 2271 763 182
fbonanno@siewert-kau.de
Skype for Business: fbonanno@siewert-kau.de
Christoph Borchard
Borchard, Christoph Team Leader SMB
Department
Distribution Germany
Location
Braunschweig (DE)
Languages
English, German
Contact
+49 (0) 531 390 27 47
CBorchard@siewert-kau.de
Skype for Business: CBorchard@siewert-kau.de
Torsten Brehmer
Brehmer, Torsten Focus Sales
Department
Competence Center Dell Technologies
Location
Halle/Saale (DE)
Languages
English, German
Contact
+49 (0) 2941 29878 51
tbrehmer@siewert-kau.de
Skype for Business: tbrehmer@siewert-kau.de
Harald Brendel
Brendel, Harald Account Manager SMB
Department
Distribution Germany
Location
Braunschweig (DE)
Languages
English, German
Contact
+49 (0) 531 390 27 45
hbrendel@siewert-kau.de
Skype for Business: hbrendel@siewert-kau.de
Ricky Burggraf
Burggraf, Ricky Backoffice
Department
Accounting
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 301
RBurggraf@siewert-kau.de
Skype for Business: RBurggraf@siewert-kau.de
Franco Calabrese
Calabrese, Franco International Sales Manager
Department
Distribution International
Location
Paderborn (DE)
Languages
English, German, Italian
Contact
+49 (0) 5251 8728 130
fcalabrese@siewert-kau.de
Skype for Business: fcalabrese@siewert-kau.de
Nathalie Cennamo
Cennamo, Nathalie Sales Support
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German, Italian
Contact
+49 (0) 2271 763 149
NCennamo@siewert-kau.de
Skype for Business: NCennamo@siewert-kau.de
Nicolas Charpentier
Charpentier, Nicolas International Sales Manager
Department
Distribution International
Location
Hengelo (NL)
Languages
English, French
Contact
+33 (0) 626 74 31 19
NCharpentier@siewert-kau.de
Skype for Business: NCharpentier@siewert-kau.de
Natacha Colin
Colin, Natacha Business Development Academy
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, French, German
Contact
+49 (0) 2271 763 196
ncolin@siewert-kau.de
Skype for Business: ncolin@siewert-kau.de
Fabian Dahlbender
Dahlbender, Fabian Sales Controller
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 145
fdahlbender@siewert-kau.de
Skype for Business: fdahlbender@siewert-kau.de
Thorsten Daniels
Daniels, Thorsten Managing Director
Department
Management
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 370
tdaniels@siewert-kau.de
Skype for Business: tdaniels@siewert-kau.de
Usama Darwich
Darwich, Usama Backoffice
Department
Purchasing Department
Location
Bergheim (DE)
Languages
Arabic, English, German
Contact
+49 (0) 2271 763 185
UDarwich@siewert-kau.de
Skype for Business: UDarwich@siewert-kau.de
Nico Dohm
Dohm, Nico Account Manager SMB
Department
Distribution Germany
Location
Braunschweig (DE)
Languages
English, German
Contact
+49 (0) 531 390 27 57
NDohm@siewert-kau.de
Skype for Business: NDohm@siewert-kau.de
Johanna Dreßen
Dreßen, Johanna Human Resources
Department
Accounting
Location
Bergheim (DE)
Languages
German
Contact
+49 (0) 2271 763 310
JDressen@siewert-kau.de
Skype for Business: JDressen@siewert-kau.de
Alexander Droller
Droller, Alexander Key Account Manager
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 194
adroller@siewert-kau.de
Skype for Business: adroller@siewert-kau.de
Annett Eichler
Eichler, Annett Focus Sales
Department
Competence Center Licensing
Location
Lippstadt (DE)
Languages
English, German
Contact
+49 (0) 2941 29878 77
AEichler@siewert-kau.de
Skype for Business: AEichler@siewert-kau.de
Christian Eisner
Eisner, Christian Focus Sales
Department
Competence Center Dell Technologies
Location
Lippstadt (DE)
Languages
English, German
Contact
+49 (0) 2941 29878 70
ceisner@siewert-kau.de
Skype for Business: ceisner@siewert-kau.de
Lina Engel
Engel, Lina Accounting
Department
Accounting
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 315
lengel@siewert-kau.de
Skype for Business: lengel@siewert-kau.de
Saskia Fagentzer
Fagentzer, Saskia Purchase Manager
Department
Purchasing Department
Location
Berlin (DE)
Languages
English, German
Contact
+49 (0) 30 3465545 10
SFagentzer@siewert-kau.de
Skype for Business: SFagentzer@siewert-kau.de
Markus Feyrer
Feyrer, Markus Business Development Manager
Department
Competence Center Digital Signage
Location
Munich (DE)
Languages
English, German
Contact
+49 (0) 89 930 8389 40
MFeyrer@siewert-kau.de
Skype for Business: MFeyrer@siewert-kau.de
Arno Fischer
Fischer, Arno Administration
Department
Network Engineering
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 275
afischer@siewert-kau.de
Skype for Business: afischer@siewert-kau.de
Thomas Fischer
Fischer, Thomas Purchase Manager
Department
Purchasing Department
Location
Lippstadt (DE)
Languages
English, German
Contact
+49 (0) 2941-29878-24
TFischer@siewert-kau.de
Skype for Business: TFischer@siewert-kau.de
Engelbert Földenyi
Földenyi, Engelbert Team Leader
Department
Competence Center Digital Signage
Location
Munich (DE)
Languages
English, German, Lettisch
Contact
+49 (0) 89 930 8389 30
EFoeldenyi@siewert-kau.de
Skype for Business: EFoeldenyi@siewert-kau.de
Markus Frank
Frank, Markus Purchase Manager
Department
Purchasing Department
Location
Braunschweig (DE)
Languages
English, German
Contact
+49 (0) 531 390 27 20
mfrank@siewert-kau.de
Skype for Business: mfrank@siewert-kau.de
Stella Froesick
Froesick, Stella Sales Support
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 268
SFroesick@siewert-kau.de
Skype for Business: SFroesick@siewert-kau.de
Joscha Frohbart
Frohbart, Joscha Teamleader Partner Development
Department
Distribution Germany
Location
Braunschweig (DE)
Languages
English, German
Contact
+49 (0) 531 390 27 67
JFrohbart@siewert-kau.de
Skype for Business: JFrohbart@siewert-kau.de
Manuela Frommont
Frommont, Manuela Head of Human Resources (Authorized representative)
Department
Accounting
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 0
mfrommont@siewert-kau.de
Skype for Business: mfrommont@siewert-kau.de
Marcel Futterer
Futterer, Marcel Business Development Manager
Department
Purchasing Department
Location
Butzbach (DE)
Languages
English, German
Contact
+49 (0) 6033 - 92492 40
MFutterer@siewert-kau.de
Skype for Business: MFutterer@siewert-kau.de
Pascal Gabrisch
Gabrisch, Pascal Junior Key Account Manager
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 146
pgabrisch@siewert-kau.de
Skype for Business: pgabrisch@siewert-kau.de
Paul Geller
Geller, Paul Purchase Manager
Department
Purchasing Department
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 186
pgeller@siewert-kau.de
Skype for Business: pgeller@siewert-kau.de
Alessandra Gervasio
Gervasio, Alessandra Account Manager SMB
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 198
agervasio@siewert-kau.de
Skype for Business: agervasio@siewert-kau.de
Finn Göttsche
Göttsche, Finn Account Manager SMB
Department
Distribution Germany
Location
Butzbach (DE)
Languages
English, German
Contact
+49 (0) 6033 92492 41
FGoettsche@siewert-kau.de
Skype for Business: FGoettsche@siewert-kau.de
Sven Grefrath
Grefrath, Sven Focus Sales
Department
Competence Center Licensing
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 103
SGrefrath@siewert-kau.de
Skype for Business: SGrefrath@siewert-kau.de
Ronny Grimm
Grimm, Ronny Focus Sales
Department
Competence Center Dell Technologies
Location
Halle/Saale (DE)
Languages
English, German
Contact
+49 (0) 2941 29878 40
rgrimm@siewert-kau.de
Skype for Business: rgrimm@siewert-kau.de
Ricardo Gröhlich
Gröhlich, Ricardo Focus Sales
Department
Competence Center Displays
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 171
RGroehlich@siewert-kau.de
Skype for Business: RGroehlich@siewert-kau.de
Jonas Große Hülsewiesche
Große Hülsewiesche, Jonas Purchase Manager
Department
Purchasing Department
Location
Lippstadt (DE)
Languages
English, German
Contact
+49 (0) 2941 29878 44
jghuelsewiesche@siewert-kau.de
Skype for Business: jghuelsewiesche@siewert-kau.de
Christian Helisch
Helisch, Christian Project Leader B.I.
Department
Controlling & B.I.
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 259
chelisch@siewert-kau.de
Skype for Business: chelisch@siewert-kau.de
Philipp Helle
Helle, Philipp Junior Key Account Manager
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 157
PHelle@siewert-kau.de
Skype for Business: PHelle@siewert-kau.de
Sebastian Hil
Hil, Sebastian Head of Purchase
Department
Purchasing Department
Location
Braunschweig (DE)
Languages
English, German
Contact
+49 (0) 531 390 27 10
shil@siewert-kau.de
Skype for Business: shil@siewert-kau.de
Judith Hintzen
Hintzen, Judith Business Assistant
Department
Controlling & B.I.
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 262
jhintzen@siewert-kau.de
Skype for Business: jhintzen@siewert-kau.de
Jörg Hisserich
Hisserich, Jörg Purchase Manager
Department
Purchasing Department
Location
Butzbach (DE)
Languages
English, German
Contact
+49 (0) 6033 - 92492 42
JHisserich@siewert-kau.de
Skype for Business: JHisserich@siewert-kau.de
Markus Hollerbaum
Hollerbaum, Markus Managing Director
Department
Management
Location
Lippstadt (DE)
Languages
English, German
Contact
+49 (0) 2941 29878 29
mhollerbaum@siewert-kau.de
Skype for Business: mhollerbaum@siewert-kau.de
Carolin Hövelmann
Hövelmann, Carolin Reception
Department
Accounting
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 106
CHoevelmann@siewert-kau.de
Skype for Business: CHoevelmann@siewert-kau.de
Nils Jaax
Jaax, Nils Account Manager SMB
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 184
NJaax@siewert-kau.de
Skype for Business: NJaax@siewert-kau.de
Thomas Janitschke
Janitschke, Thomas Account Manager SMB
Department
Distribution Germany
Location
Braunschweig (DE)
Languages
English, German
Contact
+49 (0) 531 390 27 65
TJanitschke@siewert-kau.de
Skype for Business: TJanitschke@siewert-kau.de
Oliver Jansen
Jansen, Oliver Sales Support
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 379
OJansen@siewert-kau.de
Skype for Business: OJansen@siewert-kau.de
Julia Jung
Jung, Julia Focus Sales
Department
Competence Center Scan / Print Solution
Location
Lippstadt (DE)
Languages
English, German
Contact
+49 (0) 2941 29878 22
jjung@siewert-kau.de
Skype for Business: jjung@siewert-kau.de
Lothar Jung
Jung, Lothar Focus Sales
Department
Competence Center Scan / Print Solution
Location
Lippstadt (DE)
Languages
English, German
Contact
+49 (0) 2941-29878-33
LJung@siewert-kau.de
Skype for Business: LJung@siewert-kau.de
Dennis Kaspers
Kaspers, Dennis Business Assistant
Department
Controlling & B.I.
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 238
DKaspers@siewert-kau.de
Skype for Business: DKaspers@siewert-kau.de
Holger Kau
Kau, Holger Managing Director
Department
Management
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 0
hkau@siewert-kau.de
Skype for Business: hkau@siewert-kau.de
Oliver Kau
Kau, Oliver Managing Director
Department
Management
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 0
okau@siewert-kau.de
Skype for Business: okau@siewert-kau.de
Tanja Kau
Kau, Tanja Head of Financial Accounting (Authorized representative)
Department
Accounting
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 195
tkau@siewert-kau.de
Skype for Business: tkau@siewert-kau.de
Mirko Kelb
Kelb, Mirko Head of Logistics
Department
Logistics
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 0
mkelb@siewert-kau.de
Skype for Business: mkelb@siewert-kau.de
Sebastian Keßler
Keßler, Sebastian Senior Developer
Department
E-Commerce
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 249
skessler@siewert-kau.de
Skype for Business: skessler@siewert-kau.de
Irfan Kesti
Kesti, Irfan International Sales Manager
Department
Distribution International
Location
Paderborn (DE)
Languages
English, German, Turkish
Contact
+49 (0) 5251 8728 160
ikesti@siewert-kau.de
Skype for Business: ikesti@siewert-kau.de
Mike Keusemann
Keusemann, Mike Business Development Cloud
Department
Competence Center Dell Technologies
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2941-29878-16
MKeusemann@siewert-kau.de
Skype for Business: MKeusemann@siewert-kau.de
Nitasha Khanna
Khanna, Nitasha International Sales Manager
Department
Distribution International
Location
Bergheim (DE)
Languages
English, German, Hindi
Contact
+49 (0) 2271 763 183
nkhanna@siewert-kau.de
Skype for Business: nkhanna@siewert-kau.de
Christoph Kleimann
Kleimann, Christoph Purchase Manager
Department
Purchasing Department
Location
Lippstadt (DE)
Languages
English, German
Contact
+49 (0) 2941 29878 23
ckleimann@siewert-kau.de
Skype for Business: ckleimann@siewert-kau.de
Thomas Kolbe
Kolbe, Thomas Business Development Manager
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 151 1755 09 35
TKolbe@siewert-kau.de
Skype for Business: TKolbe@siewert-kau.de
Thomas Köllen
Köllen, Thomas Deputy Head of Logistics
Department
Logistics
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 327
tkoellen@siewert-kau.de
Skype for Business: tkoellen@siewert-kau.de
Sebastian Kracinski
Kracinski, Sebastian International Sales Manager
Department
Distribution International
Location
Bergheim (DE)
Languages
English, German, Polish
Contact
+49 (0) 2271 763 261
SKracinski@siewert-kau.de
Skype for Business: SKracinski@siewert-kau.de
Monika Krafczyk
Krafczyk, Monika Key Account Manager
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 140
mkrafczyk@siewert-kau.de
Skype for Business: mkrafczyk@siewert-kau.de
Sandra Kreikenbohm
Kreikenbohm, Sandra Channel Marketing Specialist
Department
Marketing
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 147
skreikenbohm@siewert-kau.de
Skype for Business: skreikenbohm@siewert-kau.de
Markus Kreutz
Kreutz, Markus Accounting
Department
Accounting
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 317
MKreutz@siewert-kau.de
Skype for Business: MKreutz@siewert-kau.de
Basti-Jan Kroeze
Kroeze, Basti-Jan International Sales Manager
Department
Distribution International
Location
Hengelo (NL)
Languages
Dutch, English, German
Contact
+31 (0) 74 782 05 14
BKroeze@siewert-kau.com
Skype for Business: BKroeze@siewert-kau.com
Andre Kröger
Kröger, Andre Focus Sales
Department
Competence Center Displays
Location
Lippstadt (DE)
Languages
English, German
Contact
+49 (0) 2941 29878 66
akroeger@siewert-kau.de
Skype for Business: akroeger@siewert-kau.de
Thomas Kroll
Kroll, Thomas Focus Sales
Department
Competence Center Dell Technologies
Location
Braunschweig (DE)
Languages
English, German
Contact
+49 (0) 531 390 27 46
tkroll@siewert-kau.de
Skype for Business: tkroll@siewert-kau.de
Sandra Laumen
Laumen, Sandra E-Business Coordinator
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 193
SLaumen@siewert-kau.de
Skype for Business: SLaumen@siewert-kau.de
Carsten Lauterbach
Lauterbach, Carsten Purchase Manager
Department
Purchasing Department
Location
Butzbach (DE)
Languages
English, German
Contact
+49 (0) 6033 92492 32
clauterbach@siewert-kau.de
Skype for Business: clauterbach@siewert-kau.de
Martin Lebherz
Lebherz, Martin Focus Sales
Department
Competence Center Digital Signage
Location
Butzbach (DE)
Languages
English, German
Contact
+49 (0) 6033 92492 35
MLebherz@siewert-kau.de
Skype for Business: MLebherz@siewert-kau.de
Florian Lehner
Lehner, Florian Accounting
Department
Accounting
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 308
flehner@siewert-kau.de
Skype for Business: flehner@siewert-kau.de
Corinna Leisten
Leisten, Corinna Purchase Manager
Department
Purchasing Department
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 148
cleisten@siewert-kau.de
Skype for Business: cleisten@siewert-kau.de
Pascal Lentz
Lentz, Pascal Developer
Department
Controlling & B.I.
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 279
plentz@siewert-kau.de
Skype for Business: plentz@siewert-kau.de
Marcus Limburg
Limburg, Marcus Purchase Manager
Department
Purchasing Department
Location
Braunschweig (DE)
Languages
English, German
Contact
+49 (0) 531 390 27 33
mlimburg@siewert-kau.de
Skype for Business: mlimburg@siewert-kau.de
Cedric Lorenz
Lorenz, Cedric Focus Sales
Department
Competence Center Licensing
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 378
clorenz@siewert-kau.de
Skype for Business: clorenz@siewert-kau.de
Kay Lossow
Lossow, Kay Focus Sales
Department
Competence Center Surveillance
Location
Berlin (DE)
Languages
English, German
Contact
+49 (0) 30 346 55 45 30
klossow@siewert-kau.de
Skype for Business: klossow@siewert-kau.de
Lukas Lütkemeier
Lütkemeier, Lukas Backoffice
Department
Accounting
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 256
LLuetkemeier@siewert-kau.de
Skype for Business: LLuetkemeier@siewert-kau.de
Marco Manglitz
Manglitz, Marco Sales Support
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 376
MManglitz@siewert-kau.de
Skype for Business: MManglitz@siewert-kau.de
Dilek Marangoz
Marangoz, Dilek International Sales Representative
Department
Distribution International
Location
Bergheim (DE)
Languages
English, French, German, Spanish, Turkish
Contact
+49 (0) 2271 763 260
DMarangoz@siewert-kau.de
Skype for Business: DMarangoz@siewert-kau.de
Fabian Maurer
Maurer, Fabian Account Manager Buying Groups
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 170
fmaurer@siewert-kau.de
Skype for Business: fmaurer@siewert-kau.de
Fatmir Mehana
Mehana, Fatmir Focus Sales
Department
Competence Center Dell Technologies
Location
Bergheim (DE)
Languages
Albanisch, English, German
Contact
+49 (0) 2271 763 165
FMehana@siewert-kau.de
Skype for Business: FMehana@siewert-kau.de
André Meier
Meier, André Focus Sales
Department
Competence Center Dell Technologies
Location
Halle/Saale (DE)
Languages
English, German
Contact
+49 (0) 2941 29878 50
ameier@siewert-kau.de
Skype for Business: ameier@siewert-kau.de
Mohamed-Radhi Melaouah
Melaouah, Mohamed-Radhi Product Manager
Department
Purchasing Department
Location
Braunschweig (DE)
Languages
English, German
Contact
+49 (0) 531 390 27 38
MMelaouah@siewert-kau.de
Skype for Business: MMelaouah@siewert-kau.de
Christian Menzel
Menzel, Christian Account Manager SMB
Department
Distribution Germany
Location
Braunschweig (DE)
Languages
English, German
Contact
+49 (0) 531 390 27 60
cmenzel@siewert-kau.de
Skype for Business: cmenzel@siewert-kau.de
Sebastian Metz
Metz, Sebastian International Sales Manager
Department
Distribution International
Location
Paderborn (DE)
Languages
English, German
Contact
+49 (0) 5251 8728 140
smetz@siewert-kau.de
Skype for Business: smetz@siewert-kau.de
Julia Meyer
Meyer, Julia Business Assistant
Department
Controlling & B.I.
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 107
JMeyer@siewert-kau.de
Skype for Business: JMeyer@siewert-kau.de
Armin Muckenauer
Muckenauer, Armin Head of Service
Department
Service
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 200
amuckenauer@siewert-kau.de
Skype for Business: amuckenauer@siewert-kau.de
Andreas Müller
Müller, Andreas Head of Cloud Business
Department
Purchasing Department
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 152
amueller@siewert-kau.de
Skype for Business: amueller@siewert-kau.de
Arthur Müller
Müller, Arthur Sales Support
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 143
AMueller2@siewert-kau.de
Skype for Business: armueller@siewert-kau.de
Thomas Müller
Müller, Thomas Channel Marketing Specialist
Department
Marketing
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 398
tmueller@siewert-kau.de
Skype for Business: tmueller@siewert-kau.de
Thorsten Müller-Thiel
Müller-Thiel, Thorsten Project Leader ERP
Department
Controlling & B.I.
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 176
tmthiel@siewert-kau.de
Skype for Business: tmthiel@siewert-kau.de
Wikas Narander
Narander, Wikas Key Account Manager
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 173
wnarander@siewert-kau.de
Skype for Business: wnarander@siewert-kau.de
Jana Neumann
Neumann, Jana Sales Support
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 169
JNeumann@siewert-kau.de
Skype for Business: JNeumann@siewert-kau.de
Futi Nguala
Nguala, Futi Backoffice Export
Department
Distribution International
Location
Bergheim (DE)
Languages
English, French, German
Contact
+49 (0) 2271 763 351
fnguala@siewert-kau.de
Skype for Business: fnguala@siewert-kau.de
Katja Niggemeier
Niggemeier, Katja International Sales Manager
Department
Distribution International
Location
Paderborn (DE)
Languages
English, German
Contact
+49 (0) 5251 8728 120
kniggemeier@siewert-kau.de
Skype for Business: kniggemeier@siewert-kau.de
Freddy Oude Nijhuis
Nijhuis, Freddy Oude Export Director
Department
Distribution International
Location
Hengelo (NL)
Languages
Dutch, English, German
Contact
+31 (0) 74 782 05 11
FONijhuis@siewert-kau.com
Skype for Business: FONijhuis@siewert-kau.com
Tim Ostrowski
Ostrowski, Tim Account Manager SMB
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 150
TOstrowski@siewert-kau.de
Skype for Business: TOstrowski@siewert-kau.de
Christian Otten
Otten, Christian Channel Marketing Specialist
Department
Marketing
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 399
COtten@siewert-kau.de
Skype for Business: COtten@siewert-kau.de
Oliver Panitz
Panitz, Oliver Focus Sales
Department
Competence Center Displays
Location
Lippstadt (DE)
Languages
English, German
Contact
+49 (0) 2941 29878 55
OPanitz@siewert-kau.de
Skype for Business: OPanitz@siewert-kau.de
Vanessa Peters
Peters, Vanessa Sales Support
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 343
VPeters@siewert-kau.de
Skype for Business: VPeters@siewert-kau.de
Michael Pittner
Pittner, Michael Purchase Manager
Department
Purchasing Department
Location
Berlin (DE)
Languages
English, German
Contact
+49 (0) 30 346 55 45 20
MPittner@siewert-kau.de
Skype for Business: MPittner@siewert-kau.de
Markus Plückbaum
Plückbaum, Markus Head of Marketing
Department
Marketing
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 144
mplueckbaum@siewert-kau.de
Skype for Business: mplueckbaum@siewert-kau.de
Alexander Rabinowitsch
Rabinowitsch, Alexander Key Account Manager
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 470
arabinowitsch@siewert-kau.de
Skype for Business: arabinowitsch@siewert-kau.de
Achim Reichstein
Reichstein, Achim Head of Purchase
Department
Purchasing Department
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 394
areichstein@siewert-kau.de
Skype for Business: areichstein@siewert-kau.de
Alexander Reinbold
Reinbold, Alexander International Sales Manager
Department
Distribution International
Location
Bergheim (DE)
Languages
German, Russian
Contact
+49 (0) 2271 763 267
areinbold@siewert-kau.de
Skype for Business: areinbold@siewert-kau.de
Thomas Reinhardt
Reinhardt, Thomas Key Account Manager
Department
Competence Center Digital Signage
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2941 29878 78
treinhardt@siewert-kau.de
Skype for Business: treinhardt@siewert-kau.de
Oliver Restel
Restel, Oliver Accounting
Department
Accounting
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 153
orestel@siewert-kau.de
Skype for Business: orestel@siewert-kau.de
Nadine Rey
Rey, Nadine Accounting
Department
Accounting
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 190
nrey@siewert-kau.de
Skype for Business: nrey@siewert-kau.de
Thomas Riedel
Riedel, Thomas Business Development Manager
Department
Distribution Germany
Location
Halle/Saale (DE)
Languages
English, German
Contact
+49 (0) 2941 29878 52
TRiedel@siewert-kau.de
Skype for Business: TRiedel@siewert-kau.de
Najaté Romli
Romli, Najaté Purchase Manager
Department
Purchasing Department
Location
Braunschweig (DE)
Languages
English, German
Contact
+49 (0) 531 390 27 37
nromli@siewert-kau.de
Skype for Business: NRomli@siewert-kau.de
Sandra Rosenbaum
Rosenbaum, Sandra Accounting
Department
Accounting
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 271
srosenbaum@siewert-kau.de
Skype for Business: srosenbaum@siewert-kau.de
Ahmed Said-Mohamed Raouf
Said-Mohamed Raouf, Ahmed Administration
Department
Network Engineering
Location
Bergheim (DE)
Languages
Arabic, English, Italian, Spanish
Contact
+49 (0) 2271 763 229
amsaid@siewert-kau.de
Skype for Business: amsaid@siewert-kau.de
Meike Sandkaulen
Sandkaulen, Meike Sales Support
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 234
MSandkaulen@siewert-kau.de
Skype for Business: MSandkaulen@siewert-kau.de
Michelle Schenkel
Schenkel, Michelle Backoffice
Department
Purchasing Department
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 189
mschenkel@siewert-kau.de
Skype for Business: mjansen@siewert-kau.de
Marcel Schiffer
Schiffer, Marcel Accounting
Department
Accounting
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 302
mschiffer@siewert-kau.de
Skype for Business: mschiffer@siewert-kau.de
Frank Schneider
Schneider, Frank Account Manager SMB
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 380
fschneider@siewert-kau.de
Skype for Business: fschneider@siewert-kau.de
Kris Scholten
Scholten, Kris Product Logistic Manager
Department
Purchasing Department
Location
Braunschweig (DE)
Languages
English, German
Contact
+49 (0) 531 390 27 49
KScholten@siewert-kau.de
Skype for Business: KScholten@siewert-kau.de
Michael Schomakers
Schomakers, Michael Customs
Department
Distribution International
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 160
MSchomakers@siewert-kau.de
Skype for Business: MSchomakers@siewert-kau.de
Michael Schoubye
Schoubye, Michael Account Manager SMB
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 269
MSchoubye@siewert-kau.de
Skype for Business: MSchoubye@siewert-kau.de
Alexander Schwindt
Schwindt, Alexander Account Manager SMB
Department
Distribution Germany
Location
Braunschweig (DE)
Languages
English, German
Contact
+49 (0) 531 390 27 35
aschwindt@siewert-kau.de
Skype for Business: aschwindt@siewert-kau.de
Ralph Selle
Selle, Ralph Account Manager SMB
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 233
RSelle@siewert-kau.de
Skype for Business: RSelle@siewert-kau.de
Ioulia Sidiropoulou
Sidiropoulou, Ioulia International Sales Manager
Department
Distribution International
Location
Bergheim (DE)
Languages
English, German, Greek
Contact
+49 (0) 2271 763 166
isidiropoulou@siewert-kau.de
Skype for Business: isidiropoulou@siewert-kau.de
Michael Siebel
Siebel, Michael Purchase Manager
Department
Purchasing Department
Location
Butzbach (DE)
Languages
English, German
Contact
+49 (0) 6033 - 92492 36
MSiebel@siewert-kau.de
Skype for Business: MSiebel@siewert-kau.de
Björn Siewert
Siewert, Björn Managing Director
Department
Management
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 0
bsiewert@siewert-kau.de
Skype for Business: bsiewert@siewert-kau.de
Christof Sokolowski
Sokolowski, Christof Account Manager SMB
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 141
csokolowski@siewert-kau.de
Skype for Business: csokolowski@siewert-kau.de
Daniel Staps
Staps, Daniel Accounting
Department
Accounting
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 312
dstaps@siewert-kau.de
Skype for Business: dstaps@siewert-kau.de
Justin Steckhan
Steckhan, Justin Partner Development
Department
Distribution Germany
Location
Braunschweig (DE)
Languages
English, German
Contact
+49 (0) 531 390 27 56
jsteckhan@siewert-kau.de
Skype for Business: jsteckhan@siewert-kau.de
Tim Steinbach
Steinbach, Tim Head of E-Commerce
Department
E-Commerce
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 239
TSteinbach@siewert-kau.de
Skype for Business: TSteinbach@siewert-kau.de
Karin Stiller
Stiller, Karin Account Manager SMB
Department
Distribution Germany
Location
Butzbach (DE)
Languages
English, German
Contact
+49 (0) 6033 92492 37
kstiller@siewert-kau.de
Skype for Business: kstiller@siewert-kau.de
Kristina Stolze
Stolze, Kristina International Sales Manager
Department
Distribution International
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 159
kstolze@siewert-kau.de
Skype for Business: kstolze@siewert-kau.de
Florian Stute
Stute, Florian Account Manager SMB
Department
Distribution Germany
Location
Braunschweig (DE)
Languages
English, German
Contact
+49 (0) 531 390 27 61
fstute@siewert-kau.de
Skype for Business: fstute@siewert-kau.de
Erwin ter Laak
ter Laak, Erwin International Sales Manager
Department
Distribution International
Location
Hengelo (NL)
Languages
Dutch, English, German
Contact
+31 (0) 74 782 05 12
ETerLaak@siewert-kau.com
Skype for Business: ETerLaak@siewert-kau.com
Michael Teuiten
Teuiten, Michael International Sales Manager
Department
Distribution International
Location
Hengelo (NL)
Languages
Dutch, English, German
Contact
+31 (0) 74 782 05 13
MTeuiten@siewert-kau.com
Skype for Business: MTeuiten@siewert-kau.com
Nadine Thomas
Thomas, Nadine Export Manager
Department
Distribution International
Location
Bergheim (DE)
Languages
English, French, German, Spanish
Contact
+49 (0) 2271 763 192
nthomas@siewert-kau.de
Skype for Business: nthomas@siewert-kau.de
Robert Tilly
Tilly, Robert International Sales Manager
Department
Distribution International
Location
Paderborn (DE)
Languages
English, German, Spanish
Contact
+49 (0) 5251 8728 170
rtilly@siewert-kau.de
Skype for Business: rtilly@siewert-kau.de
Dennis Timineri
Timineri, Dennis International Sales Manager
Department
Distribution International
Location
Bergheim (DE)
Languages
English, German, Italian, Polish
Contact
+49 (0) 2271 763 264
DTimineri@siewert-kau.de
Skype for Business: DTimineri@siewert-kau.de
Sebastian Trost
Trost, Sebastian Channel Marketing Specialist
Department
Marketing
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 395
strost@siewert-kau.de
Skype for Business: strost@siewert-kau.de
Timo Tübcke
Tübcke, Timo Purchase Manager
Department
Purchasing Department
Location
Braunschweig (DE)
Languages
English, German
Contact
+49 (0) 531 390 27 32
ttuebcke@siewert-kau.de
Skype for Business: ttuebcke@siewert-kau.de
Nicole Tyrell
Tyrell, Nicole Focus Sales
Department
Competence Center Dell Technologies
Location
Lippstadt (DE)
Languages
English, German
Contact
+49 (0) 2941 29878 25
ntyrell@siewert-kau.de
Skype for Business: ntyrell@siewert-kau.de
Oliver Ubber
Ubber, Oliver Sales Support
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 232
oubber@siewert-kau.de
Skype for Business: oubber@siewert-kau.de
Kim Uellendahl
Uellendahl, Kim Backoffice
Department
Purchasing Department
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 344
KUellendahl@siewert-kau.de
Skype for Business: KUellendahl@siewert-kau.de
Lars Ullosat
Ullosat, Lars Account Manager SMB
Department
Distribution Germany
Location
Braunschweig (DE)
Languages
English, German
Contact
+49 (0) 531 390 27 59
LUllosat@siewert-kau.de
Skype for Business: LUllosat@siewert-kau.de
Lindita Vatovci
Vatovci, Lindita Accounting/Human Resources
Department
Accounting
Location
Bergheim (DE)
Languages
Albanisch, English, German
Contact
+49 (0) 2271 763 255
LVatovci@siewert-kau.de
Skype for Business: LVatovci@siewert-kau.de
Vincenzo Verderosa
Verderosa, Vincenzo Key Account Manager
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 179
vverderosa@siewert-kau.de
Skype for Business: vverderosa@siewert-kau.de
Sarah Voigt
Voigt, Sarah Team Leader Sales Support
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 163
svoigt@siewert-kau.de
Skype for Business: svoigt@siewert-kau.de
Jörg Vollbach
Vollbach, Jörg Sales Manager
Department
Distribution Germany
Location
Braunschweig (DE)
Languages
English, German
Contact
+49 (0) 531 390 27 30
jvollbach@siewert-kau.de
Skype for Business: jvollbach@siewert-kau.de
Thomas Warwas
Warwas, Thomas Account Manager SMB
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 164
twarwas@siewert-kau.de
Skype for Business: twarwas@siewert-kau.de
Artur Weiß
Weiß, Artur Account Manager SMB
Department
Distribution Germany
Location
Braunschweig (DE)
Languages
English, German
Contact
+49 (0) 531 390 27 50
aweiss@siewert-kau.de
Skype for Business: aweiss@siewert-kau.de
Oliver Weiß
Weiß, Oliver Focus Sales
Department
Competence Center Dell Technologies
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 263
OWeiss@siewert-kau.de
Skype for Business: OWeiss@siewert-kau.de
Andreas Welter
Welter, Andreas Accounting
Department
Accounting
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 258
awelter@siewert-kau.de
Skype for Business: awelter@siewert-kau.de
Nicole Wever
Wever, Nicole Focus Sales
Department
Competence Center Licensing
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 173 51 42 71 8
nwever@siewert-kau.de
Skype for Business: nwever@siewert-kau.de
Laura Wieser
Wieser, Laura Customs
Department
Distribution International
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 151
LWieser@siewert-kau.de
Skype for Business: LFerenzi@siewert-kau.de
Heike Wolters
Wolters, Heike Accounting
Department
Accounting
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 273
hwolters@siewert-kau.de
Skype for Business: hwolters@siewert-kau.de
Stefan Zilles
Zilles, Stefan Account Manager SMB
Department
Distribution Germany
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 383
szilles@siewert-kau.de
Skype for Business: szilles@siewert-kau.de
Jaroslaw Zirnov
Zirnov, Jaroslaw International Sales Manager
Department
Distribution International
Location
Bergheim (DE)
Languages
English, German, Russian
Contact
+49 (0) 2271 763 181
jzirnov@siewert-kau.de
Skype for Business: jzirnov@siewert-kau.de
René zur Jacobsmühlen
zur Jacobsmühlen, René Administration
Department
Network Engineering
Location
Bergheim (DE)
Languages
English, German
Contact
+49 (0) 2271 763 265
RzurJacobsmuehlen@siewert-kau.de
Skype for Business: RzurJacobsmuehlen@siewert-kau.de