Owner field shows the individual or organization.

Assign identity to balance
To link an existing balance to an identity:1
Open the balance details page
From 
Balances, open the balance you want to link. Use a balance that does not yet have an owner, or one you want to reassign.
2
Open the Actions menu
In the top-right corner of the balance details page, click 
Actions.
3
Choose Assign identity
In the dropdown, select 
Assign identity.
4
Select an identity
In the modal, type a name and pick from the list, or paste an identity ID, then click 
Submit.
5
Confirm the assignment
The balance details page updates. The 
Owner field shows the linked individual or organization.