Try all different Business Directories offered by Whitepages.de
Every Engine has different results,
Most companies are listed in serveral directories
but the results are not the same ...
Products / Produkte
and order them directly (example football, car acessories, beer)
Products via Amazon.com `
Video about the Amazon Pop Up Store @ Cremerie de Paris,
one of the World's most famous Brand Expo locations
and historic home of the Whitepages from many countries.
Business to Consumers - Companies froviding Products or Sevices for End Users
B2C Directory 11880
B2C Directory Yelp
Business to Business - Companies providing Products for Professionals
(example Manufacturer of Kitchens)
B2C Directory WLW
Germany Gov Search
this search engine goes through
all the German ministeries,
maybe the person you are looking for
has been mentioned at some point.
search in another country
Phone Book of the World.com
maybe the person you are looking for has moved
and can be cound through the directory of another country
good luck ...