The {{COMPANY}} token pulls its value from the Company Name field on the External Job Board. Please refer to the Token Glossary for more information.
To check the Company Name for an External Job Board, click the Configure icon 
in the upper right-hand corner and select Job Board from the left-hand panel.
Click the ellipsis inline with your External Job Board and select Edit from the dropdown menu.
Locate the Company Name field.
The value input into this field will populate when the {{COMPANY}} token is used