Hi @CAgnes,
Thank you for asking the Zoom Community. The feature that you are looking for is the "Zoom Webinar" which is an add-on subscription to Zoom Meeting. With Zoom Webinar, participants are visible to host and panelist only. More details below on meeting and webinar feature comparison.
https://support.zoom.us/hc/en-us/articles/115005474943-Meeting-and-webinar-comparison
As the owner of the account you can directly purchase Zoom Webinar by signing in to the Zoom web portal. Detailed instructions can be found on the link below. On this support document, you will find also a link to talk to a real human if more assistance is needed.
https://support.zoom.us/hc/en-us/articles/207597883-Upgrading-your-account-and-add-ons
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