"Wer liefert was?" is the leading supplier search engine in b-to-b. 

Users can search with "Wer liefert was?" free of charge and with over 23 million visits in 2009, our website has established itself as the first port of call for purchasing decision-makers.

"Wer liefert was?" was founded in 1932 and has a branch office in Austria since 1988. More than 1.5 million purchasing decision-makers search monthly on our website for suitable manufacturers, service providers and distributors.

The Wer liefert was? GmbH has over 250 employees throughout Europe. The headquarters are located in Hamburg.

Since 2009, "Wer liefert was?" is a member of the Swedish Bisnode Business Information Group, one of Europe’s leading providers of digital business information.