https://plus.google.com/u/0/113430404700524824659/posts/ewh6r22Rd5X

These are German companies:

check24.de, Munich (deal search)
immobilienscout24.de, Berlin (real estate search)
hrs.de, Cologne (hotel search)
fluege.de, Leipzig (flight search)
autoscout24.de, Munich (car search)
xing.de, Hamburg (social network)