Manufacturer's representative or rep, manufacturer's broker and manufacturer's agent are all terms used to describe independent sales agents who work on commission. You don't pay them a salary, just a percentage of what they sell. Manufacturer's reps offer a practical, cost-effective alternative to a direct sales force for many growing companies. There are more than half a million reps in North America, most selling to targeted markets in select geographic regions. Reps know their markets well because they call on local buyers regularly and have established sound working relationships with them.