Yes, Clubhouse can access your contacts, but it’s important to note that you have control over this. Initially, Clubhouse required users to upload their contacts to invite others to the app. This was a part of the app’s strategy to grow its network by suggesting friends and acquaintances you might know.
However, in a significant move to address privacy concerns, Clubhouse has updated its policy. As of a 2021 update, it is no longer mandatory for users to upload their contacts to send invites. You now have the option to invite friends without granting access to your entire address book. If you do choose to grant access, Clubhouse will show you which of your contacts are on the app and suggest you follow them, putting you in control of your privacy.