With no additional info from the OP there is an array of possibilities, but I'll just focus on one. If all the "businesses" are sole proprietorships, there is only one customer: the individual who owns them. His name that will be shown as the originator and the account number used to comply with the travel rule would be the one the funds actually came from.
If there are DBA names on the accounts, including one of them along with the name of the individual would not be required. However, if you are going to include one it would not be the one chosen by the customer, but the one attached to the account number from which the funds came.
In this world you must be oh so smart or oh so pleasant. Well, for years I was smart. I recommend pleasant.