A marketing channel consists of individuals and firms involved in the process of delivering a product or service for use or consumption by consumers or industrial users.
Marketing Agents
vehicle
Any intermediary between the producer and end-user markets.
Representative or Broker
Any agent with the legal authority to act on behalf of the manufacturer.
Wholesaler
An intermediary who sells to other intermediaries, usually retailers; this is generally applicable to consumer markets.
Retailer
An intermediary that sells to consumers.
Distributor
Generally, it is an imprecise term used to describe intermediaries who perform various distribution functions, including sales, inventory management, lending, etc.; it is a more common term in industrial markets but can also be used to refer to wholesalers.
Sales person
A less precise term that can mean the same thing as distributor, retailer, wholesaler, etc.