CiviCRM Community Forums (archive)

We have about 700 members in different business categories.  We'd like to consolidate these down into main categories with sub-categories that are all searchable (for example:  the main category might be 'Automotive' and under that, we want 'Auto Sales-New', 'Auto Rentals', 'Auto Repairs', 'Auto Service', etc.)  That way, instead of people having to search through 700 different business categories, they can start their search from 25-30 major categories and drill down into the data as needed. What is the simplest way to set this up? Any suggestions would be welcomed.  Thanks in advance.