Hello there, jbaktidy,
If these companies have a single Federal Employer Identification Number then you can consolidate their financials. Then, use location tracking to differentiate the sales per company.
You can check this article for more information: Set up and use location tracking.
However, if these companies have different FEIN, consolidating the financials is impossible. Since the reporting for each company is different. You might encounter a problem with the IRS since it will require the associated FEIN when you file your taxes.
Let us know if you have other questions. I'll be right here to help.