Siku is part of the Sieper Group. This included until 2009 even a part that made for bathrooms of plastic products such as cabinets and toiletries.

In recent years Siku has been able to advertise a lot for the products, model cars and gadgets are the perfect methods to do that.

Also at the Spielwarenmesse in Nuremberg, Siku has been standing since the beginning, and the latest models are shown there every year. And in doing so, relations among other things are given as gifts.