The GTC team is taking care of everything!

GTC TeleCommunication GmbH is a family business in private property. Due to highly developed solutions and high requirements to its customer advisors, GTC is able to offer it’s wide client base custom-made communication solutions.

Our team for you

That´s who we are: a team of about 30 qualified women and men taking care of your orders, developing new prodcts and taking care of your individual requirements.


We are innovative and flexible. And the most important for us is you - our customer!


Do you have special questions or requirements? Just call us:

at  Tel.: +49 (0)7 11- 4 90 90-82 you will reach our customer service directly.


Our management

Anja Gutacker





  • Born in 1970
  • Diplom-Kauffrau
  • Graduated in business administration at the Eberhard Karls Universität Tübingen
  • Studied at the Université Jean-Moulin in Lyon
  • Since 1996: head of marketing at GTC
  • Since 2009: CEO at GTC

Volker Biedinger





  • Born in 1967
  • Diplom-Ingenieur
  • Studied at the Technischen Universität Braunschweig
  • Untill 1997: Assistant of the CEO at a distributor for electronic equpiment
  • Since 1997: Assistant of the CEO at GTC
  • Since 2002: CEO at GTC

Social and ecological engagement

Our role in our society is important for us. Therefor we get involved in different ways:

  • Monthly financial aid for two sponsored children and situative donations for Worldvision
  • Sustaining member of the primary school Jakobschule in the center of Stuttgart
  • Utilisation of green electricity 
  • For more than 10 years education of apprentices
  • Financial aid for several relief operations (e.g. for victims of natural disasters)

We always try to incorporate social and ecological aspects in all our projects and products.


Terms and conditions

Data security

+49 (0)7 11 - 4 90 90-0
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