Vendors Question

I see that I can add Vendors to my CRM account.
I see that Vendors can include people who I use as contractors.

If I add my contractors to my CRM, do my end customers ever see those contractors, their names, addreses, phone numbers, etc?
On invoices or any other communication they receive on their end from us through Zoho?

In other words, if I have someone doing work for me as an employee, however, they are a business that I mearly outsource some particual work to, do I have to worry about my customers seeing my contractors and in the future contacting them directly?