It's possible to quickly convert a Job list to a Client list. This can be useful if you need to view other information about the clients in the Job list, or if you wanted to send them a bulk email.

Open your Jobs list (Work > All Jobs)

Apply any filters to the list you need, such as Job filters and status filters

Select all of the Jobs shown in the list

Choose View as client list from the 'Actions' menu

You will then be shown a Client list with the appropriate clients