The Dutch “Yellow Pages” company Gouden Gids is the Netherlands’ best used business address reference guide, and lists all businesses and institutions in the Netherlands, organized by subject and category. Customers and businesses can use it to find each other quickly and efficiently. The guide is available online and in hard copy. Gouden Gids is improving its existing search functionality with intelligent search functions, which cater for spelling variants, abbreviations (e.g. V&D), typo’s and synonyms. To achieve this, they have purchased Irion’s semantic network, similar to the Irion product used by Ilse Media. In addition Irion built an automatic classification system that automatically classifies both company descriptions and queries according to the Gouden Gids headings list (organization types).