Manufacturer Services Blog Green IT
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We are the sales team - your personal contact persons


We will prepare your desired offers for you and will be happy to help you with any questions you may have about our entire portfolio.

From Cisco Systems, Hewlett Packard Enterprise (HPE) and Juniper Networks to manufacturers such as Alcatel Lucent, Enterasys or Nortel Networks - with us you will find the right contact person. Our sales staff have specialised in one manufacturer portfolio each to help you with problems, questions or requests. We have been a reliable partner in the field of network technology for years.

Head of Sales - The Heads of Sales Department

Patrick Diener
Head of Strategic Sales
Stefan Grünheid
Head of Operational Sales

Team Cisco - The professionals for all Cisco Systems products

Sven Lembke
Team Lead Cisco
Jürgen Mattikau
Sales Manager Cisco
Florian Vopel
Sales Manager Cisco
Luca-Eric Junghans
Sales Manager Cisco & Nvidia

Team Non-Cisco - The professionals for all products from Juniper, HPE, DELL, Avaya, IBM, Alcatel and many more

Sebastian Wundrack
Team Lead Juniper
Monique Zimmermann
Sales Manager Dell, Brocade & CommScope
Nico Steinbach
Team Lead HPE & Aruba
Daniel Losch
Sales Manager Arista, Nortel, Avaya, Enterasys & Extreme
Michael Holste
Sales Manager Meraki, IBM & Lenovo
Alexander Brill
Sales Manager Fortinet, Alcatel, NetApp & Nokia
Carsten Schmidt
Sales Manager PaloAlto, APC, D-Link, Intel & Supermicro
Pascal Eggert
Sales Manager HPE & Aruba
Samin Delikhoun
Sales Manager Netgear, Ubiquiti & Mikrotik

Team Onlinesales - The professionals for all your order questions

Svea Leppke
Onlinesales Manager
Diana Eichen
Onlinesales Manager
Sandra Glossmann
Onlinesales Manager