The order in which your companies' appear in your reports will be dictated by the order in which your companies appear on the companies page.
To sort alphabetically:
1. Go to the companies page,
2. Click the three-line menu by the companies heading, which allows you to rearrange the companies in alphabetical order.
To sort them in a custom order:
You can move each company individually.
1. Click the three-dot menu on the right side of your chosen company.
2. Choose 'Move' and choose either of the above and below options to reorder your companies.