You can share a list with multiple client contacts by clicking the “Share your list” button at the top of your list:

Then you can start typing the name, email, or company of the contacts you want to share the list with. Candidately also automatically suggests contacts related to the job in Bullhorn if available:

Repeat the process to share the list with as many client contacts as needed. Once your selection is done you can customize your message and hit the “Preview” button to move forward with the list-sharing process.