Groth AG

WWF International signed a licensing agreement with Groth AG, a Swiss company based in Unterägeri in central Switzerland in 1983.

With over one billion stamps printed, and 400 issues at the end of October 2006, the sale of stamps from the WWF Conservation Stamp Collection has raised almost 20 million US dollars in royalties, making it an important source of funding for WWF's conservation activities.

• More on the WWF Conservation Stamp Collection
• Visit the Groth AG website