In Belgium there are 5 different GfK companies.
You can select the GfK company of your choice below.

GfK Panel Services Benelux B.V. Buro & Design Center Heizel Esplanade Heysel PB 36 B-1020 Brussels Tel.: +32 2 558 0558	Significant GfK Geldenaaksebaan 329 B - 3001 Heverlee Tel.: +32 16 74 24 24	GfK Audimetrie Kolonel Bourgstraat 111 B - 1140 Brussel Tel. : +32 2 724 8911
GfK Retail and Technology Benelux B.V. Buro & Design Center Heizel Esplanade - PB 58 B-1020 Brussels Tel.: +32 2 474 3950
GfK Custom Research Academy Brussels Buro & Design Center Heizel Esplanade - PB 84 B-1020 Brussels Tel.: +32 2 475 2800