It's possible to create a customized list of companies by defining your own criteria using Nexis Uni. Here's how:
Click the "Business" box, then click on the link for "Company Dossier"
Choose "Create a Company List"
Next, select your criteria on the form - you can search by revenue, number of employees, SIC or NAICS (industry) code, keywords in the business description, and/or geographic location. Click "Next" to execute the search.