The word "agented" refers to the act of an agent representing or negotiating on behalf of a person or company. Synonyms for this word include brokered, represented, facilitated, mediated, and negotiated. These words all convey the idea of someone acting as an intermediary in a business or negotiating situation. Other words that can be used to describe the actions of an agent might include advocated, promoted, sponsored, or acted as a liaison. Depending on the context, there may be a variety of synonyms that could be used to describe someone who is acting on behalf of another person or entity in a commercial or professional capacity.