Are you looking at Germany only?

What about ESCP Europe's Master in Management program? It's ranked and doesn't specify that you need any business credits to apply.

EBS has a ranked program as well, and applicants without a bachelor's in business can opt to take a preparation seminar before the program starts.

Thanks for the suggestions!

I am trying to look for schools in German speaking countries in order to build on my current language skills (5 years of instruction) in a hope that after completing the degree program I will be fluent. However, as my German stands now, I would not feel comfortable taking an entire degree program in the language.

Humboldt's program attracked me because it is a well-known university, and there is no tuition charge, which is important to me because I will be financing the degree myself - I hesitate to spend a large amount of money on tuition seeing as my current degree (a joint MS/BS in Mech E from a prestigious U.S. engineering school) already fetches a higher starting salary (entry level offers around $65-70k) than most business schools in Germany.

My decision to go to business school in Germany is a product of my desire to improve my language skills and help start a career at an international company.

I don't understand why another masters in English would help you more than spending a year at a German university's DSH 3 course.

Yes, it is a well-known university, but even so I doubt that its business school would have the same kinds of connections with employers that a ranked school like Mannheim or WHU would have.

And you're right about the starting salaries for most MIM programs in Germany -- although they tend to be in the range of what your degrees would net you -- but that's because these programs are aimed at people who generally have just completed their bachelor's degrees. I doubt that grads of the Humboldt program even see that kind of range.