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Communication Consultants GmbH
"We really appreciate the newsletter tool because we jsut know that everything will be on point"
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."
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."
"GTC is our long-standing partner for sms and e-mail boradcasting and is very reliable. Thumbs up."
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."
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."