Palm OS

Does any one know how to get the contacts look-up screen to retrieve contacts in a Treo 650 by "COMPANY" name? I've got it to sort by "Company" name but when I type in letters it only goes by "individual" names. I have 4000 contacts, all by company name and am having a heck of a time finding anyone! Of course these 4000 are all listed in separate catagories. My old Kyocera Smartphone w/Palm OS worked fine. Can any one help? 😲