"but I just would not feel comfortable with anyone having it but us. Just as your employer probably wouldn't want us having yours. If there is anything you need other than that feel free to call me anytime."
Only here's the thing: assuming for the sake of argument that you are who you claim to be, anybody working part-90 legally is licenced through the F¢¢ and everything that J. Random Monitor needs to know to listen to you (licencee/company name, address and--yes--frequency) is on public record. Anybody who knows their way around the F¢¢'s mess of a site or is handy with the database search on Interceptradio (and others like it) can find it if they want it with a minimum of effort. Basically, if you're on the air legally, you literally have nothing to hide. Fact.
Bottom line, if you're really that worried about people overhearing your business operations, maybe you should consider migrating to a closed system like GSM/?DMA phones or some trendy new encrypted system, because in-the-clear two way radio obviously isn't a good choice for you/your organisation.