Active Directory - Bulk Company Update

I was wondering if there is a way to update the 'Company' field for a large group of users within Active Directory? I would like to match all users with a company ending in a certain string.

It would take way too long to change this for each user individually.

dsquery user -name * -limit 0 | dsmod user -company "%COMPANY%"

Adjust the dsquery to target specific users as required.

Edit: To match on a specific [sub-]string

dsquery * -filter "&((objectCategory=Person)(objectClass=User)(company=*OLDCOMPANY))" -limit 0 | dsmod user -company "%NEWCOMPANY%"

Adjust the *OLDCOMPANY regex to suit your needs.