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Numerous references confirm the speaker qualities of Hans-Joachim Hahn or show the diversity of the translation service and his adaptability to different speakers.

Here you find the latest references. Click on the links “Speaker references” or “Stage interpreter and translator references” to obtain numerous other references.


Hans-Joachim Hahn is not only excellent as an interpreter on stage next to a speaker.

Within the framework of company tours, he is also able to master complicated situations in which moving groups have to follow a foreign-language tour guide. Hans-J. Hahn succeeds time and again not only in translating the technical content into the target language, but also in creating a motivating atmosphere in which visitors feel included and valued. His commitment brought a significant increase in value for the participants of our trip to Silicon Valley.

Prof. Dr. Jörg Knoblauch

Hans-Joachim Hahn is a brilliant stage interpreter. It is not only his handling of language that fascinates the audience, but also the special empathy with which he can adapt to the most diverse speakers such as Brian Tracy, Jack Canfield, Jordan Belfort and many more. In this way he gives these great personalities the important security they need in front of an audience that is not familiar with the language, which will only understand them once the interpreter has spoken. I myself have experienced this time and again for many years with Hans-Joachim Hahn.

Prof. Dr. Lothar Seiwert, Certified Speaking Professional (CSP), Global Speaking Fellow (GSF), bestselling author of If you’re in a hurry, go slow and Simplify your Life, www.lothar-seiwert.de

In his exciting and intelligent key-notes Mr. Hahn convinces with his authenticity and passion, presenting complex logical connections with inspiration and ease. As a speaker he conveys his Christian values and convictions in a very credible and convincing way.

Prof. Dr. theol. Dr. phil. Dr. iur. Lutz Simon, member of the steering committee of the Christian Professors Forum