@360 Houses I agree with @Anonymous_
Appears you didn't read my response.
Whatever name was used when filing the form 2553 and the EIN for the S corporation is the name that should be used for the 1120-S.
Many companies have more than one division, but only one official name for federal and state income tax reporting. Fairly straight forward.
*A reminder that posts in a forum such as this do not constitute tax advice.
Also keep in mind the date of replies, as tax law changes.
