GTC Gutacker TeleCommunication GmbH
Zimmermannstr. 15
70182 Stuttgart

Phone: +49 (0)711 - 4 90 90-0
Fax:     +49 (0)711 - 4 90 90-15

Send us an e-mail:


Dipl.-Kffr. Anja Gutacker, Dipl.-Ing. Volker Biedinger
Registered in the Stuttgart Register of Companies, no. HRB 721357
VAT REG NO: DE 147 841 944


Responsible inspecting Authority:
Bundesnetzagentur für Elektrizität, Gas, Telekommunikation, Post und Eisenbahnen

Tulpenfeld 4

53113 Bonn

Telefon: 0 228 14-0

Telefax: 0 228 14-8872

Reg-Nr. 90/040

Responsible with regards to content according to § 55 II RStV: Anja Gutacker


The contents and structure of this website are protected by copyright. GTC’s prior written consent is required for any reproduction of information or data, in particular for use of any images or text items. Picture credits are shown below the pictures or here: picture credits.


© 2018 GTC® TeleCommunication GmbH


© IT-Recht-Kanzlei DURY –
© Website-Check GmbH –


Martina Assenmacher

Ingram Micro Pan Europe GmbH

"The sending of our newsletter takes only a few minutes – nevertheless it is handled in a very professional way. We are not in need of additional software and do not have to enter a long term commitment. That’s how we stay flexible. Furthermore we really appreciate the support of the attentive GTC-employees."


Uwe Streb

Festina Uhren GmbH

"The customer service gave us great advice. Now we are getting much more out of our actions, can make campaign comparisons and achieve exactly what we want."


Jürgen Klein


"GTC is our long-standing partner for sms and e-mail boradcasting and is very reliable. Thumbs up."


Bettina Holz

X-PERION Consulting AG

"Our employees are on the road throughout Germany, partly even in Europe. A regular coordination is essential here. We are completely independent with GTC central meeting: all participants are dialing themselves in via telephone. It doesn’t matter, where the participants are. Even the dial-up from abroad happens at low costs, due to international access numbers."


Edgar Augel

Stadtmobil carsharing AG

"E-mailings created with the template editor look great. In addition, our mailings now always adapt to the size of the receivers with responsive design. Fantastic."


Roland M. Rupp

Schweizerischer KMU Verband

"The service at GTC leaves nothing to be desired. Also the simple operation, the evaluation and the multilingual menu is great."


Christof Korr

CreditPlus Bank AG

"An sms will not be overlooked. Therefore, sms-mailing is our choice when it matters. With GTC, we have found a professional, with which everything runs great. And what is especially important to us is that all data remain in Germany."

Zu unseren zufriedenen Kunden zählen
Datev grossKlett-Cotta großBosch großCewe colorDHL großFestinaAachen Münchener großCosAG großDeguDent großLawinen-Warndienst Bayern großSVS großWeka großIngram großIvacare Aquatec großAmnesty International großDer deutsche Wirtschaftsbrief großX-perion groß
+49 (0)7 11 - 4 90 90-0