Hi @KCMavTech ,
Unless you or your Admin have access to the "Dashboard", there's no way to collect this information until the meeting is over.

Live Meetings will be visible and the admin will have the ability to click on the ongoing meeting, view the participant list, highlight and copy all the names present and paste them into an excel sheet.

If this helps, please hit Like and Accept Solution so that everyone may light their candles from it.