You can assign accounts to users individually. By default, the user adding an account is made the owner but you can always reassign the account to a different user.
Assigning an account to a user from the details page
- Select an account from the Accounts list view page. In the details page of the account, click the View and edit all fields icon.
- In the Edit account overlay, choose the user you’d like to assign the account to from the Owner drop down.
- Hit Save.