Transferring Account Ownership
If you're looking to transfer Account Ownership of your Drift instance, just head to Settings, then Manate Teammates, then click on your name. On the right-hand side id three vertical dots, which you can click to select the "Transfer Account Ownership" option. This will bring up a drop-down menu, where you can then select another admin user to transfer ownership to. Keep in mind that this action can only be performed by admin users.
For Free Drift users, account ownership cannot be transferred. Instead, the account properties can be changed under the Profile and Account tab (under Settings), or a new Free Drift instance can be created.