About De gule Sider® De Gule Sider® is the leading Local Search and Lead Generation Company in Denmark. Spanning the market w ... ith directories on print, online www.dgs.dk, mobile mobil.dgs.dk and the directory assistance number 1811. De Gule Sider A/S is an international company owned by European Directories S.A. As the leading Local Search and Lead Generation Company in Denmark, we are proud to be the place where buyers and sellers meet independent of time and place. We provide more the 300 million Local Searches a year for our clients. Learn more on www.omdegulesider.dk read more