Insurance: person who finds the best insurance deal for a client and then sells the policy to the client.
Real estate: person who represents the seller and gets a commission when the property is sold.
Securities: person who acts as an intermediary between a buyer and seller, usually charging a commission. A broker who specializes in stocks, bonds, commodities, or options acts as agent and must be registered with the exchange where the securities are traded. Hence the term registered representative. See also account executive; dealer; discount broker.

insurance agent working exclusively for one company. Such an agent will tend to have more in-depth knowledge of that company's policies than an independent agent, who can sell policies from many companies. Captive agents are usually paid on a combination of salary and commissions earned from selling policies, in the first few years they sell policies. Later, they are usually paid exclusively on a commission basis.