You came looking for a translator and found DeFrEnT – thank you! But in some cases, you might need another industry specialisation or language combination, or what you were looking for was an interpreter (spoken) instead of a translator (written)? You can contact Christopher Köbel by phone (06042-5849059) or by e-mail (email@example.com) anyway: He knows many qualified language experts personally and can certainly refer you to a suitable translator.
Or you might try the English version of the German Federal Association of Interpreters and Translators (Bundesverbands der Dolmetscher und Übersetzer e.V.)'s member search and benefit from the professional association's strict membership prerequisites.