For an accurately nuanced translation into English I suggest you need a native English speaker. A graduate of Oxford University, I have spent most of my life teaching German at the highest level, including translation into English. I lived in Germany for a year, and am familiar with commercial German. I can offer you a conscientious translation, grammatical and syntactical accuracy in a register appropriate to any subject. If, however, the subject matter is too technical I may put your interests first and decline. But please try me!