Your company admin can upload a list of contacts, and share that list with you! To market to these contacts, you'll first need to accept the list.
First, go to your Distribution Lists page, and click on the "Available" tab:
You'll see a list of the available Master Distribution Lists that your team has provided to your account. Click the "Accept" button next to one, and rezora will immediately begin to add those contacts to your account. You'll see that list appear on your main Distribution Lists page, and you will be able to add that list of contacts as recipients for your marketing pieces.