The term "middle man" is often used to refer to a person or company that acts as an intermediary between two parties. However, there are several other synonyms that can be used to describe this role. For instance, you can use the term "broker" to refer to someone who buys or sells goods or services on behalf of others. The term "intermediary" can also be used to describe someone who facilitates transactions between two parties. Additionally, you can use the term "distributor" to refer to a person or company that delivers goods or services to consumers on behalf of others. Overall, these synonyms offer more precise descriptions of the role of a middle man.