Security Essen 2008 is a global event for securty industry. The website lists exhibitors, but I would rather it is more usable in sense of listing and filtering exhibitors. Luckily, the list is parsed out for a better manipulation:
And also a product category filtering:
A categorized list of over 1000 exhibitors with addresses and public contact information is available as Open Office ODS and Microsoft Excel XLS spreadsheets, as well as CSV formatted text.